Update Unity to release 2.4.1

tests/unity/docs/UnityHelperScriptsGuide.md

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+# Unity Helper Scripts
+
+## With a Little Help From Our Friends
+
+Sometimes what it takes to be a really efficient C programmer is a little non-C.
+The Unity project includes a couple Ruby scripts for making your life just a tad
+easier. They are completely optional. If you choose to use them, you'll need a
+copy of Ruby, of course. Just install whatever the latest version is, and it is
+likely to work. You can find Ruby at [ruby-lang.org](https://ruby-labg.org/).
+
+
+### `generate_test_runner.rb`
+
+Are you tired of creating your own `main` function in your test file? Do you
+keep forgetting to add a `RUN_TEST` call when you add a new test case to your
+suite? Do you want to use CMock or other fancy add-ons but don't want to figure
+out how to create your own `RUN_TEST` macro?
+
+Well then we have the perfect script for you!
+
+The `generate_test_runner` script processes a given test file and automatically
+creates a separate test runner file that includes ?main?to execute the test
+cases within the scanned test file. All you do then is add the generated runner
+to your list of files to be compiled and linked, and presto you're done!
+
+This script searches your test file for void function signatures having a
+function name beginning with "test" or "spec". It treats each of these
+functions as a test case and builds up a test suite of them. For example, the
+following includes three test cases:
+
+```C
+void testVerifyThatUnityIsAwesomeAndWillMakeYourLifeEasier(void)
+{
+  ASSERT_TRUE(1);
+}
+void test_FunctionName_should_WorkProperlyAndReturn8(void) {
+  ASSERT_EQUAL_INT(8, FunctionName());
+}
+void spec_Function_should_DoWhatItIsSupposedToDo(void) {
+  ASSERT_NOT_NULL(Function(5));
+}
+```
+
+You can run this script a couple of ways. The first is from the command line:
+
+```Shell
+ruby generate_test_runner.rb TestFile.c NameOfRunner.c
+```
+
+Alternatively, if you include only the test file parameter, the script will copy
+the name of the test file and automatically append "_Runner" to the name of the
+generated file. The example immediately below will create TestFile_Runner.c.
+
+```Shell
+ruby generate_test_runner.rb TestFile.c
+```
+
+You can also add a [YAML](http://www.yaml.org/) file to configure extra options.
+Conveniently, this YAML file is of the same format as that used by Unity and
+CMock. So if you are using YAML files already, you can simply pass the very same
+file into the generator script.
+
+```Shell
+ruby generate_test_runner.rb TestFile.c my_config.yml
+```
+
+The contents of the YAML file `my_config.yml` could look something like the
+example below. If you're wondering what some of these options do, you're going
+to love the next section of this document.
+
+```YAML
+:unity:
+  :includes:
+    - stdio.h
+    - microdefs.h
+  :cexception: 1
+  :suit_setup: "blah = malloc(1024);"
+  :suite_teardown: "free(blah);"
+```
+
+If you would like to force your generated test runner to include one or more
+header files, you can just include those at the command line too. Just make sure
+these are _after_ the YAML file, if you are using one:
+
+```Shell
+ruby generate_test_runner.rb TestFile.c my_config.yml extras.h
+```
+
+Another option, particularly if you are already using Ruby to orchestrate your
+builds - or more likely the Ruby-based build tool Rake - is requiring this
+script directly. Anything that you would have specified in a YAML file can be
+passed to the script as part of a hash. Let's push the exact same requirement
+set as we did above but this time through Ruby code directly:
+
+```Ruby
+require "generate_test_runner.rb"
+options = {
+  :includes => ["stdio.h", "microdefs.h"],
+  :cexception => 1,
+  :suite_setup => "blah = malloc(1024);",
+  :suite_teardown => "free(blah);"
+}
+UnityTestRunnerGenerator.new.run(testfile, runner_name, options)
+```
+
+If you have multiple files to generate in a build script (such as a Rakefile),
+you might want to instantiate a generator object with your options and call it
+to generate each runner thereafter. Like thus:
+
+```Ruby
+gen = UnityTestRunnerGenerator.new(options)
+test_files.each do |f|
+  gen.run(f, File.basename(f,'.c')+"Runner.c"
+end
+```
+
+#### Options accepted by generate_test_runner.rb:
+
+The following options are available when executing `generate_test_runner`. You
+may pass these as a Ruby hash directly or specify them in a YAML file, both of
+which are described above. In the `examples` directory, Example 3's Rakefile
+demonstrates using a Ruby hash.
+
+
+##### `:includes`
+
+This option specifies an array of file names to be ?#include?'d at the top of
+your runner C file. You might use it to reference custom types or anything else
+universally needed in your generated runners.
+
+
+##### `:suite_setup`
+
+Define this option with C code to be executed _before any_ test cases are run.
+
+
+##### `:suite_teardown`
+
+Define this option with C code to be executed ?after all?test cases have
+finished.
+
+
+##### `:enforce_strict_ordering`
+
+This option should be defined if you have the strict order feature enabled in
+CMock (see CMock documentation). This generates extra variables required for
+everything to run smoothly. If you provide the same YAML to the generator as
+used in CMock's configuration, you've already configured the generator properly.
+
+
+##### `:plugins`
+
+This option specifies an array of plugins to be used (of course, the array can
+contain only a single plugin). This is your opportunity to enable support for
+CException support, which will add a check for unhandled exceptions in each
+test, reporting a failure if one is detected. To enable this feature using Ruby:
+
+```Ruby
+:plugins => [ :cexception ]
+```
+
+Or as a yaml file:
+
+```YAML
+:plugins:
+  -:cexception
+```
+
+If you are using CMock, it is very likely that you are already passing an array
+of plugins to CMock. You can just use the same array here. This script will just
+ignore the plugins that don't require additional support.
+
+
+### `unity_test_summary.rb`
+
+A Unity test file contains one or more test case functions. Each test case can
+pass, fail, or be ignored. Each test file is run individually producing results
+for its collection of test cases. A given project will almost certainly be
+composed of multiple test files. Therefore, the suite of tests is comprised of
+one or more test cases spread across one or more test files. This script
+aggregates individual test file results to generate a summary of all executed
+test cases. The output includes how many tests were run, how many were ignored,
+and how many failed. In addition, the output includes a listing of which
+specific tests were ignored and failed. A good example of the breadth and
+details of these results can be found in the `examples` directory. Intentionally
+ignored and failing tests in this project generate corresponding entries in the
+summary report.
+
+If you're interested in other (prettier?) output formats, check into the
+Ceedling build tool project (ceedling.sourceforge.net) that works with Unity and
+CMock and supports xunit-style xml as well as other goodies.
+
+This script assumes the existence of files ending with the extensions
+`.testpass` and `.testfail`.The contents of these files includes the test
+results summary corresponding to each test file executed with the extension set
+according to the presence or absence of failures for that test file. The script
+searches a specified path for these files, opens each one it finds, parses the
+results, and aggregates and prints a summary. Calling it from the command line
+looks like this:
+
+```Shell
+ruby unity_test_summary.rb build/test/
+```
+
+You can optionally specify a root path as well. This is really helpful when you
+are using relative paths in your tools' setup, but you want to pull the summary
+into an IDE like Eclipse for clickable shortcuts.
+
+```Shell
+ruby unity_test_summary.rb build/test/ ~/projects/myproject/
+```
+
+Or, if you're more of a Windows sort of person:
+
+```Shell
+ruby unity_test_summary.rb build\teat\ C:\projects\myproject\
+```
+
+When configured correctly, you'll see a final summary, like so:
+
+```Shell
+--------------------------
+UNITY IGNORED TEST SUMMARY
+--------------------------
+blah.c:22:test_sandwiches_should_HaveBreadOnTwoSides:IGNORE
+
+-------------------------
+UNITY FAILED TEST SUMMARY
+-------------------------
+blah.c:87:test_sandwiches_should_HaveCondiments:FAIL:Expected 1 was 0
+meh.c:38:test_soda_should_BeCalledPop:FAIL:Expected "pop" was "coke"
+
+--------------------------
+OVERALL UNITY TEST SUMMARY
+--------------------------
+45 TOTAL TESTS 2 TOTAL FAILURES 1 IGNORED
+```
+
+How convenient is that?
+
+
+*Find The Latest of This And More at [ThrowTheSwitch.org](https://throwtheswitch.org)*