diff --git a/.travis.yml b/.travis.yml
index 578bac4cc..a8ef79a9d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,38 +1,142 @@
-sudo: required
-dist: trusty
-language: python
-python: "2.7"
+sudo: false
 
-addons:
-  hosts:
-    - node1
+git:
+  depth: 5
 
 env:
-  - SITE=cluster.yml ANSIBLE_VERSION=2.0.0
+  global:
+    GCE_USER=travis
+    SSH_USER=$GCE_USER
+    TEST_ID=$TRAVIS_JOB_NUMBER
+    CONTAINER_ENGINE=docker
+    PRIVATE_KEY=$GCE_PRIVATE_KEY
+    ANSIBLE_KEEP_REMOTE_FILES=1
+  matrix:
+    # Debian Jessie
+    - >-
+      KUBE_NETWORK_PLUGIN=flannel
+      CLOUD_IMAGE=debian-8
+      CLOUD_REGION=europe-west1-b
+    - >-
+      KUBE_NETWORK_PLUGIN=calico
+      CLOUD_IMAGE=debian-8
+      CLOUD_REGION=europe-west1-b
+    - >-
+      KUBE_NETWORK_PLUGIN=weave
+      CLOUD_IMAGE=debian-8
+      CLOUD_REGION=europe-west1-b
 
-install:
+    # Centos 7
+    - >-
+      KUBE_NETWORK_PLUGIN=flannel
+      CLOUD_IMAGE=centos-7-sudo
+      CLOUD_REGION=us-central1-c
+
+    # - >-
+    #   KUBE_NETWORK_PLUGIN=calico
+    #   CLOUD_IMAGE=centos-7-sudo
+    #   CLOUD_REGION=us-central1-c
+
+
+   # # Redhat 7
+    - >-
+      KUBE_NETWORK_PLUGIN=flannel
+      CLOUD_IMAGE=rhel-7-sudo
+      CLOUD_REGION=us-east1-d
+
+   #  - >-
+   #    KUBE_NETWORK_PLUGIN=calico
+   #    CLOUD_IMAGE=rhel-7-sudo
+   #    CLOUD_REGION=us-east1-d
+
+    # Ubuntu 14.04
+    - >-
+      KUBE_NETWORK_PLUGIN=flannel
+      CLOUD_IMAGE=ubuntu-1404-trusty
+      CLOUD_REGION=europe-west1-c
+    - >-
+      KUBE_NETWORK_PLUGIN=calico
+      CLOUD_IMAGE=ubuntu-1404-trusty
+      CLOUD_REGION=europe-west1-c
+    - >-
+      KUBE_NETWORK_PLUGIN=weave
+      CLOUD_IMAGE=ubuntu-1404-trusty
+      CLOUD_REGION=europe-west1-c
+
+    # # Ubuntu 15.10
+    # - >-
+    #   KUBE_NETWORK_PLUGIN=flannel
+    #   CLOUD_IMAGE=ubuntu-1510-wily
+    #   CLOUD_REGION=us-central1-a
+    # - >-
+    #   KUBE_NETWORK_PLUGIN=calico
+    #   CLOUD_IMAGE=ubuntu-1510-wily
+    #   CLOUD_REGION=us-central1-a
+    # - >-
+    #   KUBE_NETWORK_PLUGIN=weave
+    #   CLOUD_IMAGE=ubuntu-1510-wily
+    #   CLOUD_REGION=us-central1-a
+
+
+matrix:
+  allow_failures:
+    - env: KUBE_NETWORK_PLUGIN=flannel CLOUD_IMAGE=centos-7-sudo CLOUD_REGION=us-central1-c
+    - env: KUBE_NETWORK_PLUGIN=flannel CLOUD_IMAGE=rhel-7-sudo CLOUD_REGION=us-east1-d
+    - env: KUBE_NETWORK_PLUGIN=weave CLOUD_IMAGE=ubuntu-1404-trusty CLOUD_REGION=europe-west1-c
+
+before_install:
   # Install Ansible.
-  - sudo -H pip install ansible==${ANSIBLE_VERSION}
-  - sudo -H pip install netaddr
+  - pip install --user boto -U
+  - pip install --user ansible
+  - pip install --user netaddr
+  - pip install --user apache-libcloud
 
 cache:
-  directories:
-    - $HOME/releases
+  - directories:
     - $HOME/.cache/pip
+    - $HOME/.local
 
 before_script:
-  - export PATH=$PATH:/usr/local/bin
+  - echo "RUN $TRAVIS_JOB_NUMBER $KUBE_NETWORK_PLUGIN $CONTAINER_ENGINE "
+  - mkdir -p $HOME/.ssh
+  - echo $PRIVATE_KEY | base64 -d > $HOME/.ssh/id_rsa
+  - echo $GCE_PEM_FILE | base64 -d > $HOME/.ssh/gce
+  - chmod 400 $HOME/.ssh/id_rsa
+  - chmod 755 $HOME/.local/bin/ansible-playbook
+  - $HOME/.local/bin/ansible-playbook --version
+  - cp tests/ansible.cfg .
+#  - "echo $HOME/.local/bin/ansible-playbook -i inventory.ini -u $SSH_USER -e ansible_ssh_user=$SSH_USER $SSH_ARGS -b --become-user=root -e '{\"cloud_provider\": true}'  $LOG_LEVEL -e kube_network_plugin=${KUBE_NETWORK_PLUGIN} setup-kubernetes/cluster.yml"
 
 script:
-  # Check the role/playbook's syntax.
-  - "sudo -H ansible-playbook -i inventory/local-tests.cfg $SITE --syntax-check"
-
-  # Run the role/playbook with ansible-playbook.
-  - "sudo -H ansible-playbook -i inventory/local-tests.cfg $SITE --connection=local"
-
-  # Run the role/playbook again, checking to make sure it's idempotent.
   - >
-    sudo -H ansible-playbook -i inventory/local-tests.cfg $SITE --connection=local
-    | tee /dev/stderr | grep -q 'changed=0.*failed=0'
-    && (echo 'Idempotence test: pass' && exit 0)
-    || (echo 'Idempotence test: fail' && exit 1)
+    $HOME/.local/bin/ansible-playbook tests/cloud_playbooks/create-gce.yml -i tests/local_inventory/hosts -c local $LOG_LEVEL
+    -e test_id=${TEST_ID}
+    -e kube_network_plugin=${KUBE_NETWORK_PLUGIN}
+    -e gce_project_id=${GCE_PROJECT_ID}
+    -e gce_service_account_email=${GCE_ACCOUNT}
+    -e gce_pem_file=${HOME}/.ssh/gce
+    -e cloud_image=${CLOUD_IMAGE}
+    -e inventory_path=${PWD}/inventory/inventory.ini
+    -e cloud_region=${CLOUD_REGION}
+
+    # Create cluster
+  - "$HOME/.local/bin/ansible-playbook -i inventory/inventory.ini -u $SSH_USER -e ansible_ssh_user=$SSH_USER $SSH_ARGS -b --become-user=root -e '{\"cloud_provider\": true}'  $LOG_LEVEL -e kube_network_plugin=${KUBE_NETWORK_PLUGIN} cluster.yml"
+    # Tests Cases
+    ## Test Master API
+  - $HOME/.local/bin/ansible-playbook -i inventory/inventory.ini tests/testcases/010_check-apiserver.yml $LOG_LEVEL
+    ## Create a POD
+  - $HOME/.local/bin/ansible-playbook -i inventory/inventory.ini -u $SSH_USER -e ansible_ssh_user=$SSH_USER $SSH_ARGS -b --become-user=root tests/testcases/020_check-create-pod.yml $LOG_LEVEL
+    ## Ping the between 2 pod
+  - $HOME/.local/bin/ansible-playbook -i setup-kubernetes/inventory/inventory.ini -u $SSH_USER -e ansible_ssh_user=$SSH_USER $SSH_ARGS -b --become-user=root tests/testcases/030_check-network.yml $LOG_LEVEL
+
+after_script:
+  - >
+    $HOME/.local/bin/ansible-playbook -i inventory/inventory.ini tests/cloud_playbooks/delete-gce.yml -c local  $LOG_LEVEL
+    -e test_id=${TEST_ID}
+    -e kube_network_plugin=${KUBE_NETWORK_PLUGIN}
+    -e gce_project_id=${GCE_PROJECT_ID}
+    -e gce_service_account_email=${GCE_ACCOUNT}
+    -e gce_pem_file=${HOME}/.ssh/gce
+    -e cloud_image=${CLOUD_IMAGE}
+    -e inventory_path=${PWD}/inventory/inventory.ini
+    -e cloud_region=${CLOUD_REGION}
diff --git a/ansible.cfg b/ansible.cfg
new file mode 100644
index 000000000..2be6f4d02
--- /dev/null
+++ b/ansible.cfg
@@ -0,0 +1,4 @@
+[ssh_connection]
+pipelining=True
+[defaults] 
+host_key_checking=False
diff --git a/roles/apps/k8s-kube-logstash b/roles/apps/k8s-kube-logstash
index c1c0ce8e2..71c7bf982 160000
--- a/roles/apps/k8s-kube-logstash
+++ b/roles/apps/k8s-kube-logstash
@@ -1 +1 @@
-Subproject commit c1c0ce8e27b430cff8e5b0f1519707eb892f5e67
+Subproject commit 71c7bf98210e8907554a26e25cc9c2a3ece8cffd
diff --git a/tests/README.md b/tests/README.md
new file mode 100644
index 000000000..24b98197f
--- /dev/null
+++ b/tests/README.md
@@ -0,0 +1,33 @@
+# k8s-integration-tests
+
+*Work In Progress*
+
+## Test environment variables
+
+### Common
+
+Variable              | Description                            | Required   | Default
+--------------------- | -------------------------------------- | ---------- | --------
+`TEST_ID`             | A unique execution ID for this test    | Yes        |
+`KUBE_NETWORK_PLUGIN` | The network plugin (calico or flannel) | Yes        |
+`PRIVATE_KEY_FILE`    | The path to the SSH private key file   | No         |
+
+### AWS Tests
+
+Variable              | Description                                     | Required   | Default
+--------------------- | ----------------------------------------------- | ---------- | ---------
+`AWS_ACCESS_KEY`      | The Amazon Access Key ID                        | Yes        |
+`AWS_SECRET_KEY`      | The Amazon Secret Access Key                    | Yes        |
+`AWS_AMI_ID`          | The AMI ID to deploy                            | Yes        |
+`AWS_KEY_PAIR_NAME`   | The name of the EC2 key pair to use             | Yes        |
+`AWS_SECURITY_GROUP`  | The EC2 Security Group to use                   | No         | default
+`AWS_REGION`          | The EC2 region                                  | No         | eu-central-1
+
+#### Use private ssh key
+
+##### Key
+
+```bash
+openssl pkcs12 -in gce-secure.p12 -passin pass:notasecret -nodes -nocerts | openssl rsa -out gce-secure.pem
+cat gce-secure.pem |base64 -w0 > GCE_PEM_FILE`
+```
diff --git a/tests/ansible.cfg b/tests/ansible.cfg
new file mode 100644
index 000000000..2be6f4d02
--- /dev/null
+++ b/tests/ansible.cfg
@@ -0,0 +1,4 @@
+[ssh_connection]
+pipelining=True
+[defaults] 
+host_key_checking=False
diff --git a/tests/cloud_playbooks/create-aws.yml b/tests/cloud_playbooks/create-aws.yml
new file mode 100644
index 000000000..b0749ab5b
--- /dev/null
+++ b/tests/cloud_playbooks/create-aws.yml
@@ -0,0 +1,33 @@
+---
+- hosts: localhost
+  sudo: False
+  gather_facts: False
+
+  tasks:
+  - name: Provision a set of instances
+    ec2:
+      key_name: "{{ aws.key_name }}"
+      aws_access_key: "{{ aws.access_key }}"
+      aws_secret_key: "{{ aws.secret_key }}"
+      region: "{{ aws.region }}"
+      group_id: "{{ aws.group}}"
+      instance_type: "{{ aws.instance_type}}"
+      image: "{{ aws.ami_id }}"
+      wait: true
+      count: "{{ aws.count }}"
+      instance_tags: "{{ aws.tags }}"
+    register: ec2
+
+  - name: Template the inventory
+    template:
+      src: templates/inventory.ini.j2
+      dest: "{{ inventory_path }}"
+
+  - name: Wait until SSH is available
+    local_action:
+      module: wait_for
+      host: "{{ item.public_ip }}"
+      port: 22
+      timeout: 300
+      state: started
+    with_items: ec2.instances
diff --git a/tests/cloud_playbooks/create-gce.yml b/tests/cloud_playbooks/create-gce.yml
new file mode 100644
index 000000000..18b5f51a3
--- /dev/null
+++ b/tests/cloud_playbooks/create-gce.yml
@@ -0,0 +1,33 @@
+---
+- hosts: localhost
+  sudo: False
+  gather_facts: no
+  vars:
+    cloud_machine_type: g1-small
+
+  tasks:
+    - name: replace_test_id
+      set_fact:
+        test_name: "{{test_id |regex_replace('\\.', '-')}}"
+
+    - name: Create gce instances
+      gce:
+        instance_names: "k8s-{{test_name}}-1,k8s-{{test_name}}-2,k8s-{{test_name}}-3"
+        machine_type: "{{ cloud_machine_type }}"
+        image: "{{ cloud_image }}"
+        service_account_email: "{{ gce_service_account_email }}"
+        pem_file: "{{ gce_pem_file }}"
+        project_id: "{{ gce_project_id }}"
+        zone: "{{cloud_region}}"
+        metadata: '{"test_id": "{{test_id}}", "network": "{{kube_network_plugin}}"}'
+        tags: "build-{{test_name}},{{kube_network_plugin}}"
+      register: gce
+
+    - name: Template the inventory
+      template:
+        src: ../templates/inventory-gce.j2
+        dest: "{{ inventory_path }}"
+
+    - name: Wait for SSH to come up
+      wait_for: host={{item.public_ip}} port=22 delay=10 timeout=180 state=started
+      with_items: gce.instance_data
diff --git a/tests/cloud_playbooks/delete-aws.yml b/tests/cloud_playbooks/delete-aws.yml
new file mode 100644
index 000000000..3b44f3091
--- /dev/null
+++ b/tests/cloud_playbooks/delete-aws.yml
@@ -0,0 +1,15 @@
+---
+- hosts: kube-node
+  sudo: False
+
+  tasks:
+  - name: Gather EC2 facts
+    action: ec2_facts
+
+  - name: Terminate EC2 instances
+    local_action:
+      module: ec2
+      state: absent
+      instance_ids: "{{ ansible_ec2_instance_id }}"
+      region: "{{ ansible_ec2_placement_region }}"
+      wait: True
diff --git a/tests/cloud_playbooks/delete-gce.yml b/tests/cloud_playbooks/delete-gce.yml
new file mode 100644
index 000000000..d42c6cc91
--- /dev/null
+++ b/tests/cloud_playbooks/delete-gce.yml
@@ -0,0 +1,24 @@
+---
+- hosts: localhost
+  sudo: False
+  gather_facts: no
+  vars:
+    cloud_machine_type: f1-micro
+
+  tasks:
+    - name: replace_test_id
+      set_fact:
+        test_name: "{{test_id |regex_replace('\\.', '-')}}"
+
+    - name: delete gce instances
+      gce:
+        instance_names: "k8s-{{test_name}}-1,k8s-{{test_name}}-2,k8s-{{test_name}}-3"
+        machine_type: "{{ cloud_machine_type }}"
+        image: "{{ cloud_image }}"
+        service_account_email: "{{ gce_service_account_email }}"
+        pem_file: "{{ gce_pem_file }}"
+        project_id: "{{ gce_project_id }}"
+        zone: "{{cloud_region | default('europe-west1-b')}}"
+        metadata: '{"test_id": "{{test_id}}", "network": "{{kube_network_plugin}}"}'
+        state: 'absent'
+      register: gce
diff --git a/tests/local_inventory/host_vars/localhost b/tests/local_inventory/host_vars/localhost
new file mode 100644
index 000000000..695c0ecbf
--- /dev/null
+++ b/tests/local_inventory/host_vars/localhost
@@ -0,0 +1,12 @@
+aws:
+  key_name: "{{ key_name | default('ansibl8s') }}"
+  access_key: "{{ aws_access_key }}"
+  secret_key: "{{ aws_secret_key }}"
+  region: "{{ aws_region | default('eu-west-1') }}" # default to eu-west-1
+  group: "{{ aws_security_group | default ('default')}}"
+  instance_type: t2.micro
+  ami_id: "{{ aws_ami_id | default('ami-02724d1f') }}" # default to Debian Jessie
+  count: 3
+  tags:
+    test_id: "{{ test_id }}"
+    network_plugin: "{{ kube_network_plugin }}"
diff --git a/tests/local_inventory/hosts.cfg b/tests/local_inventory/hosts.cfg
new file mode 100644
index 000000000..a3550c31b
--- /dev/null
+++ b/tests/local_inventory/hosts.cfg
@@ -0,0 +1 @@
+localhost ansible_connection=localx
\ No newline at end of file
diff --git a/tests/run-tests.sh b/tests/run-tests.sh
new file mode 100755
index 000000000..c20438e10
--- /dev/null
+++ b/tests/run-tests.sh
@@ -0,0 +1,8 @@
+#! /bin/bash
+
+# curl -# -C - -o shebang-unit https://raw.github.com/arpinum-oss/shebang-unit/master/releases/shebang-unit
+# chmod +x shebang-unit
+
+now=$(date +"%Y%m%d%H%M%S")
+mkdir -p ${PWD}/tests-results
+./shebang-unit --reporters=simple,junit --output-file=${PWD}/tests-results/junit_report-${now}.xml tests
diff --git a/tests/scripts/ansibl8s_test.sh b/tests/scripts/ansibl8s_test.sh
new file mode 100644
index 000000000..53f8f2d7d
--- /dev/null
+++ b/tests/scripts/ansibl8s_test.sh
@@ -0,0 +1,52 @@
+#! /bin/bash
+
+global_setup() {
+  git clone https://github.com/ansibl8s/setup-kubernetes.git setup-kubernetes
+  private_key=""
+  if [ ! -z ${PRIVATE_KEY_FILE} ]
+  then
+    private_key="--private-key=${PRIVATE_KEY_FILE}"
+  fi
+  ansible-playbook create.yml -i hosts -u admin -s \
+      -e test_id=${TEST_ID} \
+      -e kube_network_plugin=${KUBE_NETWORK_PLUGIN} \
+      -e aws_access_key=${AWS_ACCESS_KEY} \
+      -e aws_secret_key=${AWS_SECRET_KEY} \
+      -e aws_ami_id=${AWS_AMI_ID} \
+      -e aws_security_group=${AWS_SECURITY_GROUP} \
+      -e key_name=${AWS_KEY_PAIR_NAME} \
+      -e inventory_path=${PWD}/inventory.ini \
+      -e aws_region=${AWS_REGION}
+}
+
+global_teardown() {
+  if [ -f inventory.ini ];
+  then
+    ansible-playbook -i inventory.ini -u admin delete.yml
+  fi
+  rm -rf ${PWD}/setup-kubernetes
+}
+
+should_deploy_cluster() {
+  ansible-playbook -i inventory.ini -s ${private_key} -e kube_network_plugin=${KUBE_NETWORK_PLUGIN} setup-kubernetes/cluster.yml
+
+  assertion__status_code_is_success $?
+}
+
+should_api_server_respond() {
+  ansible-playbook -i inventory.ini ${private_key} testcases/check-apiserver.yml
+
+  assertion__status_code_is_success $?
+}
+
+should_create_pod() {
+  ansible-playbook -i inventory.ini -s ${private_key} testcases/check-create-pod.yml -vv
+
+  assertion__status_code_is_success $?
+}
+
+should_pod_be_in_expected_subnet() {
+  ansible-playbook -i inventory.ini -s ${private_key} testcases/check-network.yml -vv
+
+  assertion__status_code_is_success $?
+}
diff --git a/tests/shebang-unit b/tests/shebang-unit
new file mode 100755
index 000000000..6f9a2bc6c
--- /dev/null
+++ b/tests/shebang-unit
@@ -0,0 +1,1146 @@
+#!/usr/bin/env bash
+
+# Copyright (C) 2015, Arpinum
+#
+# shebang-unit is free software: you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation, either version 3 of the License, or (at your option) any later
+# version.
+#
+# shebang-unit is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# shebang-unit. If not, see http://www.gnu.org/licenses/lgpl.html.
+
+# shebang-unit all in one source file
+
+
+configuration__load() {
+  # yes/no representation used with shebang-unit parameters to activate
+  # stuff like colors
+  SBU_YES="yes"
+  SBU_NO="no"
+
+  # Colors for outputs
+  SBU_GREEN_COLOR_CODE="\\033[1;32m"
+  SBU_RED_COLOR_CODE="\\033[1;31m"
+  SBU_YELLOW_COLOR_CODE="\\033[1;33m"
+  SBU_DEFAULT_COLOR_CODE="\\e[0m"
+
+  # Functions coding coventions
+  SBU_GLOBAL_SETUP_FUNCTION_NAME="global_setup"
+  SBU_GLOBAL_TEARDOWN_FUNCTION_NAME="global_teardown"
+  SBU_SETUP_FUNCTION_NAME="setup"
+  SBU_TEARDOWN_FUNCTION_NAME="teardown"
+  SBU_FUNCTION_DECLARATION_REGEX="^[ ]*\(function\)\{0,1\}[ ]*\([A-Za-z0-9_-]\{1,\}\)[ ]*\(([ ]*)\)\{0,1\}[ ]*{"
+  SBU_PRIVATE_FUNCTION_NAME_REGEX="^_.*"
+
+  # Default configuration that can be modified with shebang-unit parameters
+  # For more information see shebang-unit usages
+  SBU_TEST_FILE_PATTERN="*_test.sh"
+  SBU_TEST_FUNCTION_PATTERN="*"
+  SBU_USE_COLORS="${SBU_YES}"
+  SBU_RANDOM_RUN="${SBU_NO}"
+  SBU_REPORTERS="simple"
+  SBU_JUNIT_REPORTER_OUTPUT_FILE="./junit_report.xml"
+
+  # Internal constants
+  SBU_SUCCESS_STATUS_CODE=0
+  SBU_FAILURE_STATUS_CODE=1
+  SBU_VALUE_SEPARATOR=","
+  SBU_TEMP_DIR="/tmp/.shebang-unit"
+  SBU_LAST_ASSERTION_MSG_KEY="last_assertion_message"
+  SBU_NO_RUN="${SBU_NO}"
+  SBU_STANDARD_FD=42
+  SBU_ERROR_FD=43
+}
+
+
+assertion__equal() {
+  if [[ "$1" != "$2" ]]; then
+    _assertion__failed "Actual: <$2>, expected: <$1>."
+  fi
+}
+
+assertion__different() {
+  if [[ "$1" == "$2" ]]; then
+    _assertion__failed "Both values are: <$1>."
+  fi
+}
+
+assertion__string_contains() {
+  if ! system__string_contains "$1" "$2"; then
+    _assertion__failed "String: <$1> does not contain: <$2>."
+  fi
+}
+
+assertion__string_does_not_contain() {
+  if system__string_contains "$1" "$2"; then
+    _assertion__failed "String: <$1> contains: <$2>."
+  fi
+}
+
+assertion__string_empty() {
+  if [[ -n "$1" ]]; then
+    _assertion__failed "String: <$1> is not empty."
+  fi
+}
+
+assertion__string_not_empty() {
+  if [[ -z "$1" ]]; then
+    _assertion__failed "The string is empty."
+  fi
+}
+
+assertion__array_contains() {
+  local element=$1
+  shift 1
+  if ! array__contains "${element}" "$@"; then
+    local array_as_string="$(system__pretty_print_array "$@")"
+    _assertion__failed \
+      "Array: <${array_as_string}> does not contain: <${element}>."
+  fi
+}
+
+assertion__array_does_not_contain() {
+  local element=$1
+  shift 1
+  if array__contains "${element}" "$@"; then
+    local array_as_string="$(system__pretty_print_array "$@")"
+    _assertion__failed \
+      "Array: <${array_as_string}> contains: <${element}>."
+  fi
+}
+
+assertion__status_code_is_success() {
+  if (( $1 != ${SBU_SUCCESS_STATUS_CODE} )); then
+    _assertion__failed \
+      "Status code is failure instead of success." "$2"
+  fi
+}
+
+assertion__status_code_is_failure() {
+  if (( $1 == ${SBU_SUCCESS_STATUS_CODE} )); then
+    _assertion__failed \
+      "Status code is success instead of failure." "$2"
+  fi
+}
+
+assertion__successful() {
+  "$@"
+  if (( $? != ${SBU_SUCCESS_STATUS_CODE} )); then
+    _assertion__failed "Command is failing instead of successful."
+  fi
+}
+
+assertion__failing() {
+  "$@"
+  if (( $? == ${SBU_SUCCESS_STATUS_CODE} )); then
+    _assertion__failed "Command is successful instead of failing."
+  fi
+}
+
+_assertion__failed() {
+  local message_to_use="$(_assertion__get_assertion_message_to_use "$1" "$2")"
+  system__print_line "Assertion failed. ${message_to_use}"
+  exit ${SBU_FAILURE_STATUS_CODE}
+}
+
+_assertion__get_assertion_message_to_use() {
+  local message=$1
+  local custom_messsage=$2
+  if [[ -n "${custom_messsage}" ]]; then
+    system__print "${message} ${custom_messsage}"
+  else
+    system__print "${message}"
+  fi
+}
+
+
+mock__make_function_do_nothing() {
+  mock__make_function_call "$1" ":"
+}
+
+mock__make_function_prints() {
+  local function=$1
+  local text=$2
+  eval "${function}() { printf "${text}"; }"
+}
+
+mock__make_function_call() {
+  local function_to_mock=$1
+  local function_to_call=$2
+  shift 2
+  eval "${function_to_mock}() { ${function_to_call} \"\$@\"; }"
+}
+
+
+runner__run_all_test_files() {
+  SBU_BASE_TEST_DIRECTORY=$1
+  reporter__test_files_start_running
+  timer__store_current_time "global_time"
+  results__test_files_start_running
+  _runner__run_all_test_files_with_pattern_in_directory "$1"
+  reporter__test_files_end_running "$(timer__get_time_elapsed "global_time")"
+  runner__tests_are_successful
+}
+
+_runner__run_all_test_files_with_pattern_in_directory() {
+  local file
+  local files
+  array__from_lines files <<< "$(_runner__get_test_files_in_directory "$1")"
+  for file in "${files[@]}"; do
+    file_runner__run_test_file "${file}"
+  done
+}
+
+_runner__get_test_files_in_directory() {
+  local files
+  array__from_lines files <<< "$(find "$1" -name "${SBU_TEST_FILE_PATTERN}" | sort)"
+  if [[ "${SBU_RANDOM_RUN}" == "${SBU_YES}"  ]]; then
+    array__from_lines files <<< "$(system__randomize_array "${files[@]}")"
+  fi
+  array__print "${files[@]}"
+}
+
+runner__tests_are_successful() {
+  (( $(results__get_failing_tests_count) == 0 \
+      && $(results__get_skipped_tests_count) == 0 ))
+}
+
+
+file_runner__run_test_file() {
+  local file=$1
+  local public_functions=($(parser__get_public_functions_in_file "${file}"))
+  local test_functions=($(_file_runner__get_test_functions))
+  reporter__test_file_starts_running "${file}" "${#test_functions[@]}"
+  ( source "${file}"
+    _file_runner__run_global_setup_if_exists \
+      && _file_runner__call_all_tests
+    _file_runner__run_global_teardown_if_exists )
+  _file_runner__check_if_global_setup_has_exited
+  reporter__test_file_ends_running
+}
+
+_file_runner__run_all_tests_if_global_setup_is_successful() {
+    _file_runner__call_all_tests
+}
+
+_file_runner__call_all_tests() {
+  local i
+  for (( i=0; i < ${#test_functions[@]}; i++ )); do
+    test_runner__run_test "${test_functions[${i}]}" "${public_functions[@]}"
+  done
+}
+
+_file_runner__skip_all_tests() {
+  local i
+  for (( i=0; i < ${#test_functions[@]}; i++ )); do
+    test_runner__skip_test "${test_functions[${i}]}" "${public_functions[@]}"
+  done
+}
+
+_file_runner__get_test_functions() {
+  local result=()
+  local test_function
+  for test_function in "${public_functions[@]}"; do
+    if _file_runner__function_is_a_test "${test_function}"\
+       && [[ "${test_function}" == ${SBU_TEST_FUNCTION_PATTERN} ]]; then
+      result+=("${test_function}")
+    fi
+  done
+  _file_runner__get_randomized_test_functions_if_needed "${result[@]}"
+}
+
+_file_runner__get_randomized_test_functions_if_needed() {
+  if [[ "${SBU_RANDOM_RUN}" == "${SBU_YES}" ]]; then
+    system__randomize_array "$@"
+  else
+    array__print "$@"
+  fi
+}
+
+_file_runner__run_global_setup_if_exists() {
+  database__put "sbu_current_global_setup_has_failed" "${SBU_YES}"
+  _file_runner__call_function_if_exists "${SBU_GLOBAL_SETUP_FUNCTION_NAME}" \
+    && database__put "sbu_current_global_setup_has_failed" "${SBU_NO}"
+}
+
+_file_runner__run_global_teardown_if_exists() {
+  _file_runner__call_function_if_exists "${SBU_GLOBAL_TEARDOWN_FUNCTION_NAME}"
+}
+
+_file_runner__function_is_a_test() {
+  ! array__contains "$1" \
+                      "${SBU_GLOBAL_SETUP_FUNCTION_NAME}" \
+                      "${SBU_GLOBAL_TEARDOWN_FUNCTION_NAME}" \
+                      "${SBU_SETUP_FUNCTION_NAME}" \
+                      "${SBU_TEARDOWN_FUNCTION_NAME}"
+}
+
+_file_runner__call_function_if_exists() {
+  local function=$1
+  shift 1
+  if array__contains "${function}" "${public_functions[@]}"; then
+    "${function}"
+  fi
+}
+
+_file_runner__check_if_global_setup_has_exited() {
+  local has_exited="$(database__get "sbu_current_global_setup_has_failed")"
+  if [[ "${has_exited}" == "${SBU_YES}" ]]; then
+    _file_runner__handle_failure_in_global_setup
+  fi
+}
+
+_file_runner__handle_failure_in_global_setup() {
+    reporter__global_setup_has_failed
+    _file_runner__skip_all_tests
+}
+
+
+parser__get_public_functions_in_file() {
+  _parser__find_functions_in_file "$1" \
+    | _parser__filter_private_functions \
+    | awk '{ print $1 }'
+}
+
+_parser__find_functions_in_file() {
+  grep -o "${SBU_FUNCTION_DECLARATION_REGEX}" "$1" \
+    | _parser__get_function_name_from_declaration
+}
+
+_parser__filter_private_functions() {
+  grep -v "${SBU_PRIVATE_FUNCTION_NAME_REGEX}"
+}
+
+_parser__get_function_name_from_declaration() {
+  sed "s/${SBU_FUNCTION_DECLARATION_REGEX}/\2/"
+}
+
+
+timer__store_current_time() {
+  local id=$1
+  database__put "sbu_beginning_date_$1" "$(system__get_date_in_seconds)"
+}
+
+timer__get_time_elapsed() {
+  local id=$1
+  local beginning_date="$(database__get "sbu_beginning_date_$1")"
+  local ending_date="$(system__get_date_in_seconds)"
+
+  [[ -n "${beginning_date}" ]] \
+    && system__print "$(( ending_date - beginning_date ))" \
+    || system__print "0"
+}
+
+
+results__test_files_start_running() {
+  database__put "sbu_successful_tests_count" "0"
+  database__put "sbu_failing_tests_count" "0"
+  database__put "sbu_skipped_tests_count" "0"
+}
+
+results__get_successful_tests_count() {
+  _results__get_tests_count_of_type "successful"
+}
+
+results__increment_successful_tests() {
+  _results__increment_tests_of_type "successful"
+}
+
+results__get_failing_tests_count() {
+  _results__get_tests_count_of_type "failing"
+}
+
+results__increment_failing_tests() {
+  _results__increment_tests_of_type "failing"
+}
+
+results__get_skipped_tests_count() {
+  _results__get_tests_count_of_type "skipped"
+}
+
+results__increment_skipped_tests() {
+  _results__increment_tests_of_type "skipped"
+}
+
+results__get_total_tests_count() {
+  local successes="$(results__get_successful_tests_count)"
+  local failures="$(results__get_failing_tests_count)"
+  local skipped="$(results__get_skipped_tests_count)"
+  system__print "$(( successes + failures + skipped ))"
+}
+
+_results__get_tests_count_of_type() {
+  local type=$1
+  database__get "sbu_${type}_tests_count"
+}
+
+_results__increment_tests_of_type() {
+  local type=$1
+  local count="$(results__get_${type}_tests_count)"
+  database__put "sbu_${type}_tests_count" "$(( count + 1 ))"
+}
+
+
+test_runner__run_test() {
+  local test_function=$1
+  shift 1
+  reporter__test_starts_running "${test_function}"
+  timer__store_current_time "test_time"
+  (
+    _test_runner__call_setup_if_exists "$@" \
+      && _test_runner__call_test_fonction "${test_function}"
+    local setup_and_test_code=$?
+    _test_runner__call_teardown_if_exists "$@"
+    (( $? == ${SBU_SUCCESS_STATUS_CODE} \
+    &&  ${setup_and_test_code} == ${SBU_SUCCESS_STATUS_CODE} ))
+  )
+  _test_runner__parse_test_function_result $?
+  reporter__test_ends_running "$(timer__get_time_elapsed "test_time")"
+}
+
+_test_runner__call_test_fonction() {
+  ( "$1" >&${SBU_STANDARD_FD} 2>&${SBU_ERROR_FD} )
+}
+
+_test_runner__call_setup_if_exists() {
+  _test_runner__call_function_if_exits "${SBU_SETUP_FUNCTION_NAME}" "$@"
+}
+
+_test_runner__call_teardown_if_exists() {
+  _test_runner__call_function_if_exits "${SBU_TEARDOWN_FUNCTION_NAME}" "$@"
+}
+
+_test_runner__parse_test_function_result() {
+  if (( $1 == ${SBU_SUCCESS_STATUS_CODE} )); then
+    results__increment_successful_tests
+    reporter__test_has_succeeded
+  else
+    results__increment_failing_tests
+    reporter__test_has_failed
+  fi
+}
+
+_test_runner__call_function_if_exits() {
+  local function=$1
+  shift 1
+  if array__contains "${function}" "$@"; then
+    "${function}"
+  fi
+}
+
+test_runner__skip_test() {
+  local test_function=$1
+  reporter__test_starts_running "${test_function}"
+  results__increment_skipped_tests
+  reporter__test_is_skipped "${test_function}"
+  reporter__test_ends_running 0
+}
+
+
+reporter__test_files_start_running() {
+  _reporter__initialise_file_descriptors
+  reporter__for_each_reporter \
+    _reporter__call_function "test_files_start_running" "$@"
+}
+
+_reporter__initialise_file_descriptors() {
+  eval "exec ${SBU_STANDARD_FD}>&1"
+  eval "exec ${SBU_ERROR_FD}>&2"
+}
+
+reporter__global_setup_has_failed() {
+  reporter__for_each_reporter \
+    _reporter__call_function "global_setup_has_failed" "$@"
+}
+
+reporter__test_file_starts_running() {
+  reporter__for_each_reporter \
+    _reporter__call_function "test_file_starts_running" "$@"
+}
+
+reporter__test_starts_running() {
+  reporter__for_each_reporter \
+    _reporter__call_function "test_starts_running" "$@"
+}
+
+reporter__test_has_succeeded() {
+  reporter__for_each_reporter \
+    _reporter__call_function "test_has_succeeded" "$@"
+}
+
+reporter__test_has_failed() {
+  reporter__for_each_reporter \
+    _reporter__call_function "test_has_failed" "$@"
+}
+
+reporter__test_is_skipped() {
+  reporter__for_each_reporter \
+    _reporter__call_function "test_is_skipped" "$@"
+}
+
+reporter__test_ends_running() {
+  reporter__for_each_reporter \
+    _reporter__call_function "test_ends_running" "$@"
+}
+
+reporter__test_file_ends_running() {
+  reporter__for_each_reporter \
+    _reporter__call_function "test_file_ends_running" "$@"
+}
+
+reporter__test_files_end_running() {
+  reporter__for_each_reporter \
+    _reporter__call_function "test_files_end_running" "$@"
+  _reporter__release_file_descriptors
+}
+
+_reporter__release_file_descriptors() {
+  eval "exec 1>&${SBU_STANDARD_FD} ${SBU_STANDARD_FD}>&-"
+  eval "exec 2>&${SBU_ERROR_FD} ${SBU_ERROR_FD}>&-"
+}
+
+_reporter__call_function() {
+  local function=$1
+  shift 1
+  "${reporter}_reporter__${function}" "$@"
+}
+
+reporter__for_each_reporter() {
+  local reporter
+  for reporter in ${SBU_REPORTERS//${SBU_VALUE_SEPARATOR}/ }; do
+    "$@"
+  done
+}
+
+reporter__print_with_color() {
+  system__print_with_color "$@" >&${SBU_STANDARD_FD}
+}
+
+reporter__print_line() {
+  system__print_line "$@" >&${SBU_STANDARD_FD}
+}
+
+reporter__print_line_with_color() {
+  system__print_line_with_color "$@" >&${SBU_STANDARD_FD}
+}
+
+reporter__print_new_line() {
+  system__print_new_line >&${SBU_STANDARD_FD}
+}
+
+reporter__get_color_code_for_tests_result() {
+  local color_code=${SBU_GREEN_COLOR_CODE}
+  if ! runner__tests_are_successful; then
+    color_code=${SBU_RED_COLOR_CODE}
+  fi
+  system__print "${color_code}"
+}
+
+reporter__get_test_file_relative_name() {
+  system__print "${1#${SBU_BASE_TEST_DIRECTORY}\/}"
+}
+
+
+simple_reporter__test_files_start_running() {
+  :
+}
+
+simple_reporter__test_file_starts_running() {
+  local relative_name="$(reporter__get_test_file_relative_name "$1")"
+  reporter__print_line "[File] ${relative_name}"
+}
+
+simple_reporter__global_setup_has_failed() {
+  reporter__print_line_with_color \
+    "Global setup has failed" ${SBU_YELLOW_COLOR_CODE}
+}
+
+simple_reporter__test_starts_running() {
+  reporter__print_line "[Test] $1"
+}
+
+simple_reporter__test_has_succeeded() {
+  reporter__print_line_with_color "OK" ${SBU_GREEN_COLOR_CODE}
+}
+
+simple_reporter__test_has_failed() {
+  reporter__print_line_with_color "KO" ${SBU_RED_COLOR_CODE}
+}
+
+simple_reporter__test_is_skipped() {
+  reporter__print_line_with_color "Skipped" ${SBU_YELLOW_COLOR_CODE}
+}
+
+simple_reporter__test_ends_running() {
+  :
+}
+
+simple_reporter__test_file_ends_running() {
+  reporter__print_new_line
+}
+
+simple_reporter__test_files_end_running() {
+  local time="in $1s"
+  reporter__print_line "[Results]"
+  local color="$(reporter__get_color_code_for_tests_result)"
+  local total_count="$(_simple_reporter__get_total_count_message)"
+  local failures_count="$(_simple_reporter__get_failures_count_message)"
+  local skipped_count="$(results__get_skipped_tests_count) skipped"
+  local message="${total_count}, ${failures_count}, ${skipped_count} ${time}"
+  reporter__print_line_with_color "${message}" "${color}"
+}
+
+_simple_reporter__get_total_count_message() {
+  local count="$(results__get_total_tests_count)"
+  system__print "${count} test$(_simple_reporter__get_agreement ${count})"
+}
+
+_simple_reporter__get_failures_count_message() {
+  local count="$(results__get_failing_tests_count)"
+  system__print "${count} failure$(_simple_reporter__get_agreement ${count})"
+}
+
+_simple_reporter__get_agreement() {
+  (( $1 > 1 )) \
+    && system__print "s" \
+    || system__print ""
+}
+
+
+dots_reporter__test_files_start_running() {
+  exec 1>/dev/null
+  exec 2>/dev/null
+}
+
+dots_reporter__test_file_starts_running() {
+  :
+}
+
+dots_reporter__global_setup_has_failed() {
+  :
+}
+
+dots_reporter__test_starts_running() {
+  :
+}
+
+dots_reporter__test_has_succeeded() {
+  reporter__print_with_color "." ${SBU_GREEN_COLOR_CODE}
+}
+
+dots_reporter__test_has_failed() {
+  reporter__print_with_color "F" ${SBU_RED_COLOR_CODE}
+}
+
+dots_reporter__test_is_skipped() {
+  reporter__print_with_color "S" ${SBU_YELLOW_COLOR_CODE}
+}
+
+dots_reporter__test_ends_running() {
+  :
+}
+
+dots_reporter__test_file_ends_running() {
+  :
+}
+
+dots_reporter__test_files_end_running() {
+  local color="$(reporter__get_color_code_for_tests_result)"
+  local texte="$(runner__tests_are_successful \
+                  && system__print "OK" \
+                  || system__print "KO")"
+  reporter__print_line_with_color "${texte}" "${color}"
+}
+
+
+junit_reporter__test_files_start_running() {
+  _junit_reporter__initialise_report_with \
+    "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>"
+  _junit_reporter__write_line_to_report "<testsuites>"
+}
+
+junit_reporter__test_file_starts_running() {
+  local file_name=$1
+  local test_count=$2
+  local suite_name="$(_junit_reporter__get_suite_name "${file_name}")"
+  database__put "sbu_current_suite_name" "${suite_name}"
+  _junit_reporter__write_line_to_report \
+    "  <testsuite name=\"${suite_name}\" tests=\"${test_count}\">"
+  _junit_reporter__delete_all_outputs_lines "suite"
+  _junit_reporter__redirect_outputs_to_database "suite"
+}
+
+junit_reporter__global_setup_has_failed() {
+  :
+}
+
+junit_reporter__test_starts_running() {
+  local suite_name="$(database__get "sbu_current_suite_name")"
+  local test_name="$(xml__encode_text "$1")"
+  _junit_reporter__write_line_to_report \
+    "    <testcase name=\"${test_name}\" classname=\"${suite_name}\" \
+time=\"\${sbu_current_test_time}\">"
+  _junit_reporter__delete_all_outputs_lines "test"
+  _junit_reporter__redirect_outputs_to_database "test"
+}
+
+junit_reporter__test_has_succeeded() {
+  :
+}
+
+junit_reporter__test_has_failed() {
+  _junit_reporter__write_line_to_report "      <failure>"
+  _junit_reporter__write_line_to_report "      </failure>"
+}
+
+junit_reporter__test_is_skipped() {
+  _junit_reporter__write_line_to_report "      <skipped>"
+  _junit_reporter__write_line_to_report "      </skipped>"
+}
+
+junit_reporter__test_ends_running() {
+  _junit_reporter__redirect_outputs_to_database "suite"
+  _junit_reporter__write_time_in_current_test_case_tag_in_report "$1"
+  _junit_reporter__flush_all_outputs_to_report_if_any "test"
+  _junit_reporter__write_line_to_report "    </testcase>"
+}
+
+_junit_reporter__write_time_in_current_test_case_tag_in_report() {
+  local test_time=$1
+  local report_content=$(cat "${SBU_JUNIT_REPORTER_OUTPUT_FILE}")
+  local content_with_time="$(system__substitute_variable \
+    "${report_content}" "sbu_current_test_time" "${test_time}")"
+  system__print_line \
+    "${content_with_time}" > "${SBU_JUNIT_REPORTER_OUTPUT_FILE}"
+}
+
+junit_reporter__test_file_ends_running() {
+  _junit_reporter__flush_all_outputs_to_report_if_any "suite"
+  _junit_reporter__write_line_to_report "  </testsuite>"
+  database__put "sbu_current_suite_name" ""
+}
+
+junit_reporter__test_files_end_running() {
+  _junit_reporter__write_line_to_report "</testsuites>"
+}
+
+_junit_reporter__get_suite_name() {
+  local relative_name="$(reporter__get_test_file_relative_name "$1")"
+  local dots_replaced_by_underscores="${relative_name//./_}"
+  local slashes_replaced_by_dots="${dots_replaced_by_underscores//\//.}"
+  xml__encode_text "${slashes_replaced_by_dots}"
+}
+
+_junit_reporter__initialise_report_with() {
+  system__print_line "$1" > "${SBU_JUNIT_REPORTER_OUTPUT_FILE}"
+}
+
+_junit_reporter__write_line_to_report() {
+  system__print_line "$1" >> "${SBU_JUNIT_REPORTER_OUTPUT_FILE}"
+}
+
+_junit_reporter__redirect_outputs_to_database() {
+  local scope=$1
+  exec 1>>\
+    "$(database__get_descriptor "sbu_current_${scope}_standard_ouputs_lines")"
+  exec 2>>\
+    "$(database__get_descriptor "sbu_current_${scope}_error_ouputs_lines")"
+}
+
+_junit_reporter__delete_all_outputs_lines() {
+  database__put "sbu_current_$1_standard_ouputs_lines"
+  database__put "sbu_current_$1_error_ouputs_lines"
+}
+
+_junit_reporter__flush_all_outputs_to_report_if_any() {
+  _junit_reporter__flush_outputs_to_report_if_any "$1" "standard"
+  _junit_reporter__flush_outputs_to_report_if_any "$1" "error"
+}
+
+_junit_reporter__flush_outputs_to_report_if_any() {
+  local scope=$1
+  local outputs_type=$2
+  local key="sbu_current_${scope}_${outputs_type}_ouputs_lines"
+  local outputs="$(database__get "${key}")"
+  if [[ -n "${outputs}" ]]; then
+    _junit_reporter__write_outputs_to_report \
+      "${scope}" "${outputs_type}" "${outputs}"
+    database__put "${key}" ""
+  fi
+}
+
+_junit_reporter__write_outputs_to_report() {
+  local scope=$1
+  local outputs_type=$2
+  local outputs=$3
+  local tag="$(_junit_reporter__get_tag_for_outputs_type "${outputs_type}")"
+  local indentation="$(_junit_reporter__get_indentation_for_scope "${scope}")"
+  _junit_reporter__write_line_to_report "${indentation}<${tag}>"
+  _junit_reporter__write_line_to_report "$(xml__encode_text "${outputs}")"
+  _junit_reporter__write_line_to_report "${indentation}</${tag}>"
+}
+
+_junit_reporter__get_tag_for_outputs_type() {
+  [[ "$1" == "standard" ]] \
+    && system__print "system-out" \
+    || system__print "system-err"
+}
+
+_junit_reporter__get_indentation_for_scope() {
+  [[ "$1" == "suite" ]] \
+    && system__print "    " \
+    || system__print "      "
+}
+
+
+xml__encode_text() {
+  local encoded=${1//\&/\&amp\;}
+  encoded=${encoded//\</\&lt\;}
+  encoded=${encoded//\>/\&gt\;}
+  encoded=${encoded//\"/\&quot\;}
+  encoded=${encoded//\'/\&apos\;}
+  system__print "${encoded}"
+}
+
+
+database__initialise() {
+  _SBU_DB_TOKEN="$(system__random)"
+  _database__ensure_directory_exists
+}
+
+database__release() {
+  rm -rf "$(_database__get_dir)"
+}
+
+database__put() {
+  _database__ensure_directory_exists
+  system__print "$2" > "$(_database__get_dir)/$1"
+}
+
+database__post() {
+  _database__ensure_directory_exists
+  system__print "$2" >> "$(_database__get_dir)/$1"
+}
+
+database__post_line() {
+  _database__ensure_directory_exists
+  system__print_line "$2" >> "$(_database__get_dir)/$1"
+}
+
+database__put_variable() {
+  _database__ensure_directory_exists
+  database__put "$1" "${!1}"
+}
+
+database__get() {
+  [[ -e "$(_database__get_dir)/$1" ]] && cat "$(_database__get_dir)/$1"
+}
+
+database__get_descriptor() {
+  system__print "$(_database__get_dir)/$1"
+}
+
+_database__ensure_directory_exists() {
+  mkdir -p "$(_database__get_dir)"
+}
+
+_database__get_dir() {
+  system__print "${SBU_TEMP_DIR}/database/${_SBU_DB_TOKEN}"
+}
+
+
+system__get_string_or_default() {
+  [[ -n "$1" ]] \
+    && system__print "$1" \
+    || system__print "$2"
+}
+
+system__get_date_in_seconds() {
+  date +%s
+}
+
+system__print_line_with_color() {
+  system__print_with_color "$@"
+  system__print_new_line
+}
+
+system__print_with_color() {
+  if [[ "${SBU_USE_COLORS}" == "${SBU_YES}" ]]; then
+    printf "$2$1${SBU_DEFAULT_COLOR_CODE}"
+  else
+    system__print "$1"
+  fi
+}
+
+system__print_line() {
+  system__print "$1"
+  system__print_new_line
+}
+
+system__print() {
+  printf "%s" "$1"
+}
+
+system__print_new_line() {
+  printf "\n"
+}
+
+array__contains() {
+  local value=$1
+  shift 1
+  local i
+  for (( i=1; i <= $#; i++ )); do
+    if [[ "${!i}" == "${value}" ]]; then
+      return ${SBU_SUCCESS_STATUS_CODE}
+    fi
+  done
+  return ${SBU_FAILURE_STATUS_CODE}
+}
+
+array__from_lines() {
+  local IFS=$'\n'
+  eval "$1=(\$(</dev/stdin))"
+}
+
+array__print() {
+  local element
+  for element in "$@"; do
+    system__print_line "${element}"
+  done
+}
+
+system__pretty_print_array() {
+  local array_as_string=""
+  local i
+  for (( i=1; i <= $#; i++ )); do
+    array_as_string+="${!i}, "
+  done
+  array_as_string=${array_as_string/%, /}
+  printf "[%s]" "${array_as_string}"
+}
+
+system__string_contains() {
+  [[ "$1" == *"$2"* ]]
+}
+
+system__randomize_array() {
+  local copy=("$@")
+  while (( ${#copy[@]} > 0 )); do
+    local random_index=$(( $(system__random) % ${#copy[@]} ))
+    system__print_line "${copy[${random_index}]}"
+    unset copy[${random_index}]
+    copy=("${copy[@]}")
+  done
+}
+
+system__random() {
+  system__print "${RANDOM}"
+}
+
+system__substitute_variable() {
+    local string=$1
+    local key="\$\{$2\}"
+    local value=$3
+    printf "%s" "${string//${key}/${value}}"
+}
+
+
+main__main() {
+  configuration__load
+  _main__initialise
+  local parsed_arguments=0
+  _main__parse_arguments "$@"
+  shift ${parsed_arguments}
+  _main__assert_only_one_argument_left $#
+  _main__assert_reporters_are_known
+  SBU_BASE_TEST_DIRECTORY=$1
+
+  if [[ "${SBU_NO_RUN}" != "${SBU_YES}" ]]; then
+    runner__run_all_test_files "$1"
+    return $?
+  fi
+}
+
+_main__initialise() {
+  database__initialise
+  trap _main__release EXIT
+}
+
+_main__release() {
+  database__release
+}
+
+_main__parse_arguments() {
+  local argument
+  for argument in "$@"; do
+    case "${argument}" in
+      -a|--api-cheat-sheet)
+      _main__print_api_cheat_sheet_and_exit
+      ;;
+      -c=*|--colors=*)
+      SBU_USE_COLORS="${argument#*=}"
+      (( parsed_arguments++ ))
+      ;;
+      -d=*|--random-run=*)
+      SBU_RANDOM_RUN="${argument#*=}"
+      (( parsed_arguments++ ))
+      ;;
+      -h|--help)
+      _main__print_full_usage
+      exit ${SBU_SUCCESS_STATUS_CODE}
+      ;;
+      -f=*|--file-pattern=*)
+      SBU_TEST_FILE_PATTERN="${argument#*=}"
+      (( parsed_arguments++ ))
+      ;;
+      --no-run)
+      SBU_NO_RUN="${SBU_YES}"
+      (( parsed_arguments++ ))
+      ;;
+      -o=*|--output-file=*)
+      SBU_JUNIT_REPORTER_OUTPUT_FILE="${argument#*=}"
+      (( parsed_arguments++ ))
+      ;;
+      -t=*|--test-pattern=*)
+      SBU_TEST_FUNCTION_PATTERN="${argument#*=}"
+      (( parsed_arguments++ ))
+      ;;
+      -r=*|--reporters=*)
+      SBU_REPORTERS="${argument#*=}"
+      (( parsed_arguments++ ))
+      ;;
+      -*|--*)
+      _main__print_illegal_option "${argument}"
+      _main__print_usage_and_exit_with_code ${SBU_FAILURE_STATUS_CODE}
+      ;;
+    esac
+  done
+}
+
+ _main__assert_reporters_are_known() {
+  reporter__for_each_reporter _main__fail_if_reporter_unknown
+}
+
+_main__fail_if_reporter_unknown() {
+  if ! array__contains "${reporter}" "simple" "dots" "junit"; then
+    system__print_line \
+      "$(_main__get_script_name): unknown reporter <${reporter}>"
+    exit ${SBU_FAILURE_STATUS_CODE}
+  fi
+}
+
+_main__print_illegal_option() {
+  local option="${1%=*}"
+  option="${option#-}"
+  option="${option#-}"
+  system__print_line "$(_main__get_script_name): illegal option -- ${option}"
+}
+
+_main__assert_only_one_argument_left() {
+  if (( $1 > 1 )); then
+    system__print_line "$(_main__get_script_name): only one path is allowed"
+    _main__print_usage_and_exit_with_code ${SBU_FAILURE_STATUS_CODE}
+  fi
+}
+
+_main__get_script_name() {
+  basename "${BASH_SOURCE[0]}"
+}
+
+_main__print_usage_and_exit_with_code() {
+  _main__print_usage
+  exit $1
+}
+
+_main__print_full_usage() {
+  _main__print_usage
+  local script="$(_main__get_script_name)"
+  system__print_new_line
+  system__print_line "\
+[options]
+  -a, --api-cheat-sheet
+    print api cheat sheet like assertions
+  -c, --colors=${SBU_YES} or ${SBU_NO}
+    tests output with colors or no
+  -d, --random-run=${SBU_YES} or ${SBU_NO}
+    tests files and functions randomly run or no
+  -f, --file-pattern=<pattern>
+    pattern to filter test files
+  -h
+    print usage
+  -o, --output-file=<file>
+    output file for JUnit reporter
+  -r, --reporters=<reporter1,reporter2>
+    comma-separated reporters (simple, dots or junit)
+  -t, --test-pattern=<pattern>
+    pattern to filter test function in files
+
+[examples]
+  ${script} .
+    run all tests in current directory
+  ${script} -p=*test.sh sources/test
+    run all tests files ending with test.sh in sources/test"
+}
+
+_main__print_usage() {
+  system__print_line "\
+usage: $(_main__get_script_name) [options] path
+       run all tests in path"
+}
+
+_main__print_api_cheat_sheet_and_exit() {
+  system__print_line "\
+[assertions]
+  assertion__equal (value, other)
+    -> assert that <value> is equal to <other>
+  assertion__different (value, other)
+    -> assert that <value> is different from <other>
+  assertion__string_contains (string, substring)
+    -> assert that <string> contains <substring>
+  assertion__string_does_not_contain (string, substring)
+    -> assert that <string> does not contain <substring>
+  assertion__string_empty (string)
+    -> assert that <string> is empty
+  assertion__string_not_empty (string)
+    -> assert that <string> is not empty
+  assertion__array_contains (element, array[0], array[1], ...)
+    -> assert that the <array> contains the <element>
+  assertion__array_does_not_contain (element, array elements...)
+    -> assert that the <array> does not contain the <element>
+  assertion__successful (command)
+    -> assert that the <command> is successful
+  assertion__failing (command)
+    -> assert that the <command> is failing
+  assertion__status_code_is_success (code)
+    -> assert that the status <code> is 0
+  assertion__status_code_is_failure (code)
+    -> assert that the status <code> is not 0
+
+[special functions]
+  ${SBU_GLOBAL_SETUP_FUNCTION_NAME}
+    -> Executed before all tests in a file
+  ${SBU_GLOBAL_TEARDOWN_FUNCTION_NAME}
+    -> Executed after all tests in a file
+  ${SBU_SETUP_FUNCTION_NAME}
+    -> Executed before each test in a file
+  ${SBU_TEARDOWN_FUNCTION_NAME}
+    -> Executed after each test in a file
+
+[mocks]
+  mock__make_function_do_nothing (function_to_mock)
+    -> make function do nothing
+  mock__make_function_prints (function_to_mock, message)
+    -> make function prints a message
+  mock__make_function_call (function_to_mock, function_to_call)
+    -> make function call another function"
+  exit ${SBU_SUCCESS_STATUS_CODE}
+}
+
+
+main__main "$@"
diff --git a/tests/templates/inventory-gce.j2 b/tests/templates/inventory-gce.j2
new file mode 100644
index 000000000..72ad469de
--- /dev/null
+++ b/tests/templates/inventory-gce.j2
@@ -0,0 +1,20 @@
+node1 ansible_ssh_host={{gce.instance_data[0].public_ip}}
+node2 ansible_ssh_host={{gce.instance_data[1].public_ip}}
+node3 ansible_ssh_host={{gce.instance_data[2].public_ip}}
+
+[kube-master]
+node1
+node2
+
+[kube-node]
+node1
+node2
+node3
+
+[etcd]
+node1
+node2
+
+[k8s-cluster:children]
+kube-node
+kube-master
diff --git a/tests/templates/inventory.ini.j2 b/tests/templates/inventory.ini.j2
new file mode 100644
index 000000000..d6358efb9
--- /dev/null
+++ b/tests/templates/inventory.ini.j2
@@ -0,0 +1,20 @@
+node1 ansible_ssh_host={{ec2.instances[0].public_ip}} ansible_ssh_user=admin
+node2 ansible_ssh_host={{ec2.instances[1].public_ip}} ansible_ssh_user=admin
+node3 ansible_ssh_host={{ec2.instances[2].public_ip}} ansible_ssh_user=admin
+
+[kube-master]
+node1
+node2
+
+[kube-node]
+node1
+node2
+node3
+
+[etcd]
+node1
+node2
+
+[k8s-cluster:children]
+kube-node
+kube-master
diff --git a/tests/testcases/010_check-apiserver.yml b/tests/testcases/010_check-apiserver.yml
new file mode 100644
index 000000000..7beed06fb
--- /dev/null
+++ b/tests/testcases/010_check-apiserver.yml
@@ -0,0 +1,12 @@
+---
+- hosts: kube-master
+
+  tasks:
+  - name: Check the API servers are responding
+    local_action:
+      module: uri
+      url: https://{{ansible_ssh_host}}/api/v1
+      user: kube
+      password: changeme
+      validate_certs: no
+      status_code: 200
diff --git a/tests/testcases/020_check-create-pod.yml b/tests/testcases/020_check-create-pod.yml
new file mode 100644
index 000000000..219fbb985
--- /dev/null
+++ b/tests/testcases/020_check-create-pod.yml
@@ -0,0 +1,13 @@
+---
+- hosts: node1
+
+  tasks:
+  - name: Run a replica controller composed of 2 pods
+    shell: "kubectl run test --image=busybox --replicas=2 --command -- tail -f /dev/null"
+
+  - name: Pods are running
+    shell: "kubectl get pods --no-headers -o json"
+    register: run_pods_log
+    until: (run_pods_log.stdout | from_json)['items'] | map(attribute = 'status.phase') | join(',') == "Running,Running"
+    retries: 24
+    delay: 5
diff --git a/tests/testcases/030_check-network.yml b/tests/testcases/030_check-network.yml
new file mode 100644
index 000000000..596ce0ce1
--- /dev/null
+++ b/tests/testcases/030_check-network.yml
@@ -0,0 +1,21 @@
+---
+- hosts: node1
+
+  tasks:
+
+  - name: Get pod names
+    shell: "kubectl get pods -o json"
+    register: pods
+
+  - set_fact:
+      pod_names: "{{ (pods.stdout | from_json)['items'] | map(attribute = 'metadata.name') | list }}"
+      pod_ips: "{{ (pods.stdout | from_json)['items'] | map(attribute = 'status.podIP') | list }}"
+
+  - name: Check pods IP are in correct network
+    assert:
+      that: item | ipaddr(kube_pods_subnet)
+    with_items: pod_ips
+
+
+  - name: Ping between pods is working
+    shell: "kubectl exec {{pod_names[0]}} -- ping -c 4 {{ pod_ips[1] }}"