moby/testutil/stringutils_test.go
2020-02-11 00:06:42 +01:00

34 lines
893 B
Go

package testutil // import "github.com/docker/docker/testutil"
import (
"testing"
"gotest.tools/v3/assert"
is "gotest.tools/v3/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)
}