return optionalFile("integTest.gradleHomeDir");
    }

    public TestFile getSamplesDir() {
        return file("integTest.samplesdir", null);
    }

    public TestFile getCommitDistributionsDir() {
        return file("integTest.commitDistributionsDir", null);
    }

    @Nullable
    public TestFile getNormalizedBinDistribution() {
        return optionalFile("integTest.normalizedDistribution");