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core.runtime.Runtime.extendedModuleUnitTester - multiple declarations

Function Runtime.extendedModuleUnitTester

Overrides the default module unit tester with a user-supplied version. This routine will be called once on program initialization. The return value of this routine indicates to the runtime whether the tests ran without error.

static void extendedModuleUnitTester (
  UnitTestResult function() h
) @property;

There are two options for handlers. The bool version is deprecated but will be kept for legacy support. Returning true from the handler is equivalent to returning UnitTestResult.pass from the extended version. Returning false from the handler is equivalent to returning UnitTestResult.fail from the extended version.

See the documentation for UnitTestResult to see how you should set up the return structure.

See the documentation for runModuleUnitTests for how the default algorithm works, or read the example below.

Parameters

NameDescription
h The new unit tester. Set both to null to use the default unit tester.

Example

shared static this()
{
    import core.runtime;

    Runtime.extendedModuleUnitTester = &customModuleUnitTester;
}

UnitTestResult customModuleUnitTester()
{
    import std.stdio;

    writeln("Using customModuleUnitTester");

    // Do the same thing as the default moduleUnitTester:
    UnitTestResult result;
    foreach (m; ModuleInfo)
    {
        if (m)
        {
            auto fp = m.unitTest;

            if (fp)
            {
                ++result.executed;
                try
                {
                    fp();
                    ++result.passed;
                }
                catch (Throwable e)
                {
                    writeln(e);
                }
            }
        }
    }
    if (result.executed != result.passed)
    {
        result.runMain = false;  // don't run main
        result.summarize = true; // print failure
    }
    else
    {
        result.runMain = true;    // all UT passed
        result.summarize = false; // be quiet about it.
    }
    return result;
}

Function Runtime.extendedModuleUnitTester

Gets the current module unit tester.

static UnitTestResult extendedModuleUnitTester();

This handler overrides any legacy module unit tester set by the moduleUnitTester property.

Returns

The current module unit tester handler or null if none has been set.

Authors

Sean Kelly

License

Boost License 1.0