Function TestPackageLevelMatchString

regex_stdlib_compat_test.go:42–70

TestPackageLevelMatchString tests the package-level MatchString function.

(t *testing.T)

// TestPackageLevelMatchString tests the package-level MatchString function.
func TestPackageLevelMatchString(t *testing.T) {
	tests := []struct {
		pattern string
		input   string
		want    bool
	}{
		{`\d+`, "hello 123", true},
		{`\d+`, "hello", false},
		{`^hello`, "hello world", true},
		{`^hello`, "say hello", false},
	}

	for _, tt := range tests {
		got, err := MatchString(tt.pattern, tt.input)
		if err != nil {
			t.Errorf("MatchString(%q, %q) error: %v", tt.pattern, tt.input, err)
			continue
		}
		if got != tt.want {
			t.Errorf("MatchString(%q, %q) = %v, want %v", tt.pattern, tt.input, got, tt.want)
		}

		// Compare with stdlib
		stdGot, _ := regexp.MatchString(tt.pattern, tt.input)
		if got != stdGot {
			t.Errorf("MatchString(%q, %q) = %v, stdlib = %v", tt.pattern, tt.input, got, stdGot)
		}
	}
}

// TestCompilePOSIX tests POSIX compilation with leftmost-longest semantics.
func TestCompilePOSIX(t *testing.T) {