public void fastAssertSingleReplacementDiffEnsuresOldHaystackDoesNotContainNeedle()
{
const string OLD_HAYSTACK = "abc";
const string NEW_HAYSTACK = "abcd";
const string NEEDLE = "b";
Assert.Throws <DoesNotContainException>(() => FastAssert.fastAssertSingleReplacementDiff(OLD_HAYSTACK, NEW_HAYSTACK, NEEDLE));
}
public void fastAssertSingleReplacementDiffDoesNotThrowWhenNeedleIsFound()
{
const string OLD_HAYSTACK = "abc";
const string NEW_HAYSTACK = "adc";
const string NEEDLE = "d";
FastAssert.fastAssertSingleReplacementDiff(OLD_HAYSTACK, NEW_HAYSTACK, NEEDLE);
}
public void fastAssertSingleReplacementDiffEnsuresOldAndNewHaystacksAreDifferent()
{
const string OLD_HAYSTACK = "abc";
const string NEW_HAYSTACK = "abc";
const string NEEDLE = "d";
Assert.Throws <FalseException>(() => FastAssert.fastAssertSingleReplacementDiff(OLD_HAYSTACK, NEW_HAYSTACK, NEEDLE));
}
public void fastAssertSingleReplacementDiffShowsDiffWhenNeedleIsNotFound()
{
const string OLD_HAYSTACK = "abc";
const string NEW_HAYSTACK = "adc";
const string NEEDLE = "e";
try {
FastAssert.fastAssertSingleReplacementDiff(OLD_HAYSTACK, NEW_HAYSTACK, NEEDLE);
Assert.False(true, "should have thrown a ContainsException above");
} catch (XunitException e) {
Assert.Equal("Not found:\ne\n\nIn actual. Diff between original and actual:\nadc", e.Message);
}
}