heuristics regexp engine configurable #2, skip rules at runtime

regex/standard_test.go

@@ -0,0 +1,27 @@
+//go:build !oniguruma
+// +build !oniguruma
+
+package regex
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestMustCompileMultiline(t *testing.T) {
+	const re = `^\.(.*)!$`
+	want := MustCompileMultiline(re)
+	assert.Equal(t, "(?m)"+re, want.String())
+
+	const s = `.one
+.two!
+thre!`
+	if !want.MatchString(s) {
+		t.Fatalf("MustCompileMultiline(`%s`) must match multiline %q\n", re, s)
+	}
+}
+
+func TestMustCompileRuby(t *testing.T) {
+	assert.Nil(t, MustCompileRuby(``))
+}