package testutil // import "github.com/docker/docker/internal/testutil" import ( "testing" "gotest.tools/assert" is "gotest.tools/assert/cmp" ) func testLengthHelper(generator func(int) string, t *testing.T) { expectedLength := 20 s := generator(expectedLength) assert.Check(t, is.Equal(expectedLength, len(s))) } func testUniquenessHelper(generator func(int) string, t *testing.T) { repeats := 25 set := make(map[string]struct{}, repeats) for i := 0; i < repeats; i = i + 1 { str := generator(64) assert.Check(t, is.Equal(64, len(str))) _, ok := set[str] assert.Check(t, !ok, "Random number is repeated") set[str] = struct{}{} } } func TestGenerateRandomAlphaOnlyStringLength(t *testing.T) { testLengthHelper(GenerateRandomAlphaOnlyString, t) } func TestGenerateRandomAlphaOnlyStringUniqueness(t *testing.T) { testUniquenessHelper(GenerateRandomAlphaOnlyString, t) }