1 files changed, 47 insertions, 0 deletions
diff --git a/simpleperf/RegEx_test.cpp b/simpleperf/RegEx_test.cpp
new file mode 100644
index 00000000..cbb25ae0
--- /dev/null
+++ b/simpleperf/RegEx_test.cpp
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "RegEx.h"
+
+#include <gtest/gtest.h>
+
+using namespace simpleperf;
+
+TEST(RegEx, smoke) {
+  auto re = RegEx::Create("b+");
+  ASSERT_EQ(re->GetPattern(), "b+");
+  ASSERT_FALSE(re->Search("aaa"));
+  ASSERT_TRUE(re->Search("aba"));
+  ASSERT_FALSE(re->Match("aba"));
+  ASSERT_TRUE(re->Match("bbb"));
+
+  auto match = re->SearchAll("aaa");
+  ASSERT_FALSE(match->IsValid());
+  match = re->SearchAll("ababb");
+  ASSERT_TRUE(match->IsValid());
+  ASSERT_EQ(match->GetField(0), "b");
+  match->MoveToNextMatch();
+  ASSERT_TRUE(match->IsValid());
+  ASSERT_EQ(match->GetField(0), "bb");
+  match->MoveToNextMatch();
+  ASSERT_FALSE(match->IsValid());
+
+  ASSERT_EQ(re->Replace("ababb", "c").value(), "acac");
+}
+
+TEST(RegEx, invalid_pattern) {
+  ASSERT_TRUE(RegEx::Create("?hello") == nullptr);
+}