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Common Test
User's Guide
Version 1.11

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Chapters

- Common Test Basics
  - Top of chapter
  - Introduction
  - Test Suite Organisation
  - Support Libraries
  - Suites and Test Cases
  - External Interfaces
- Getting Started
  - Top of chapter
  - Are you new around here?
  - Test case execution
  - A simple test suite
  - A test suite with configuration functions
  - What happens next?
- Installation
  - Top of chapter
  - General information
- Writing Test Suites
  - Top of chapter
  - Support for test suite authors
  - Test suites
  - Init and end per suite
  - Init and end per test case
  - Test cases
  - Test case info function
  - Test suite info function
  - Test case groups
  - The parallel property and nested groups
  - Parallel test cases and IO
  - Repeated groups
  - Shuffled test case order
  - Group info function
  - Info functions for init- and end-configuration
  - Data and Private Directories
  - Execution environment
  - Timetrap timeouts
  - Logging - categories and verbosity levels
  - Illegal dependencies
- Test Structure
  - Top of chapter
  - Test structure
  - Skipping test cases
  - Definition of terms
- Examples and Templates
  - Top of chapter
  - Test suite example
  - Test suite templates
- Running Tests and Analyzing Results
  - Top of chapter
  - Using the Common Test Framework
  - Automatic compilation of test suites and help modules
  - Running tests from the OS command line
  - Running tests from the Erlang shell or from an Erlang program
  - Test case group execution
  - Running the interactive shell mode
  - Step by step execution of test cases with the Erlang Debugger
  - Test Specifications
  - Running tests from the Web based GUI
  - Log files
  - HTML Style Sheets
  - Repeating tests
  - Silent Connections
- External Configuration Data
  - Top of chapter
  - General
  - Syntax
  - Requiring and reading configuration data
  - Using configuration variables defined in multiple files
  - Encrypted configuration files
  - Opening connections by using configuration data
  - User specific configuration data formats
  - Examples of configuration data handling
  - Example of user specific configuration handler
- Code Coverage Analysis
  - Top of chapter
  - General
  - Usage
  - Stopping the cover tool when tests are completed
  - The cover specification file
  - Cross cover analysis
  - Logging
- Using Common Test for Large Scale Testing
  - Top of chapter
  - General
  - Usage
  - Test Specifications
  - Automatic startup of test target nodes
- Event Handling
  - Top of chapter
  - General
  - Usage
- Dependencies between Test Cases and Suites
  - Top of chapter
  - General
  - Saving configuration data
  - Sequences
- Common Test Hooks
  - Top of chapter
  - General
  - Installing a CTH
  - CTH Scope
  - Manipulating tests
  - Synchronizing external user applications with Common Test
  - Example CTH
  - Built-in CTHs
- Some thoughts about testing
  - Top of chapter
  - Goals
  - What to test?

# 3 Installation

### 3.1 General information

The two main interfaces for running tests with Common Test are an executable program named ct_run and an erlang module named ct. The ct_run program is compiled for the underlying operating system (e.g. Unix/Linux or Windows) during the build of the Erlang/OTP system, and is installed automatically with other executable programs in the top level bin directory of Erlang/OTP. The ct interface functions can be called from the Erlang shell, or from any Erlang function, on any supported platform.

The Common Test application is installed with the Erlang/OTP system and no additional installation step is required to start using Common Test by means of the ct_run executable program, and/or the interface functions in the ct module.