shunit21

Usage

Overview

shUnit2 is an xUnit unit test framework for Bourne-based shell scripts, and is designed to work in a similar manner to JUnit, PyUnit, and so forth. If you have ever had the desire to write a unit test for a shell script, shUnit2 can do the job.

You can either run shunit2 directly from the command line and specify the unit file unit-file or directly source the shunit2 executable.

If you directly execute shunit2 and don't specify unit-file, shUnit2 assumes an empty test file and will return without an error message.

Options

shunit2 does not support any command-line options at all. You can either source shunit2 with the shell's . (“dot”) built-in to execute your unit tests or directly run shunit2 as a command with unit-file as a parameter.

Examples

The following simple script tests whether 1 equals 1.

#! /bin/sh
testEquality()
{
  assertEquals 1 1
}

The above example assumes this is executed on the machine where shunit2 is available as an executable command found in the path specified by the environment variable $PATH. You can alternatively copy a /usr/bin/shunit2 file from this machine to path/to/shunit2 in the target source tree and use it in the target build environment as follows.

#! /bin/sh
testEquality()
{
  assertEquals 1 1
}

The following is a shell session transcript showing how to write the same test as above and execute it directly.

$ 
cat > test_equality.sh <<EOF
testEquality()
{
  assertEquals 1 1
}
EOF
$ 
shunit2 test_equality.sh

Note that shunit2 is not sourced in this example.

More sophisticated examples can be found in ⟨file:///usr/share/doc/shunit2/examples/⟩.