testutil

func AssertTrueBeforeTimeout ¶

func AssertTrueBeforeTimeout(t *testing.T, frequency, timeout time.Duration, condition func() bool)

AssertTrueBeforeTimeout regularly checks whether a condition is met. It does so until a timeout is reached, in which case it makes the test fail. Condition is evaluated in a goroutine to avoid tests hanging if a system is deadlocked.

func Detab ¶

func Detab(str string) string

Detab removes whitespace from the front of a string on every line

func ElementsMatchFn ¶ added in v0.74.0

func ElementsMatchFn[K comparable, V any](
	t assert.TestingT,
	seq iter.Seq2[K, V],
	matchers ...func(require.TestingT, K, V),
)

ElementsMatchFn checks that for each element there is exactly one matcher function that does not fail. Order of elements and matchers does not matter.

Using require instead of assert in the matchers will produce more compact and readable failures.

seq can be obtained from slices.All() or maps.All().

func Fuzz ¶

func Fuzz(t *testing.T, test func(int64))

Fuzz implements poor-soul's attempt at fuzzing. The idea is to catch edge cases by running a bunch of random, but deterministic (the same on every run), scenarios. In "-short" mode it runs for about 100ms; otherwise about 1s.

The `test` function should use its input as a seed to a random number generator.

func RequireTrueBeforeTimeout ¶

func RequireTrueBeforeTimeout(t *testing.T, frequency, timeout time.Duration, condition func() bool)

RequireTrueBeforeTimeout is the same as AssertTrueBeforeTimeout, but it calls t.failNow() if the condition function times out.