Function TestFindStringSubmatch_DotPlusCapture_StdlibCompatibility

regex_test.go:916–951

TestFindStringSubmatch_DotPlusCapture_StdlibCompatibility verifies that FindStringSubmatch matches stdlib regexp behavior for .+ patterns.

(t *testing.T)

// TestFindStringSubmatch_DotPlusCapture_StdlibCompatibility verifies that
// FindStringSubmatch matches stdlib regexp behavior for .+ patterns.
func TestFindStringSubmatch_DotPlusCapture_StdlibCompatibility(t *testing.T) {
	patterns := []string{
		`^(.+)-(\d+)$`,
		`^(.+?)-(\d+)$`,
		`^(.*)x(\d+)$`,
		`(.+)-(\d+)`,
		`^(.+):(\d+)$`,
		`^(.+)-(.+)-(\d+)$`,
		`^(.+)-(\d.*)$`,
	}

	inputs := []string{
		"hello-123",
		"a-b-c-456",
		"abcx789",
		"test-999",
		"host:8080",
		"a-b-123",
		"pkg-1.2.3",
	}

	for _, pattern := range patterns {
		stdRe := regexp.MustCompile(pattern)
		cgRe := MustCompile(pattern)

		for _, input := range inputs {
			stdMatch := stdRe.FindStringSubmatch(input)
			cgMatch := cgRe.FindStringSubmatch(input)

			if !reflect.DeepEqual(stdMatch, cgMatch) {
				t.Errorf("Pattern %q, Input %q:\n  stdlib: %v\n  coregex: %v",
					pattern, input, stdMatch, cgMatch)
			}
		}
	}
}

// TestFindSubmatchIndex_DotPlusCapture tests capture group indices with .+ patterns.
func TestFindSubmatchIndex_DotPlusCapture(t *testing.T) {