1 files changed, 65 insertions, 0 deletions
diff --git a/gnu/llvm/lldb/unittests/Utility/RegularExpressionTest.cpp b/gnu/llvm/lldb/unittests/Utility/RegularExpressionTest.cpp
new file mode 100644
index 00000000000..4ac8f4953aa
--- /dev/null
+++ b/gnu/llvm/lldb/unittests/Utility/RegularExpressionTest.cpp
@@ -0,0 +1,65 @@
+//===-- RegularExpressionTest.cpp -----------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Utility/RegularExpression.h"
+#include "llvm/ADT/SmallVector.h"
+#include "gtest/gtest.h"
+
+using namespace lldb_private;
+using namespace llvm;
+
+TEST(RegularExpression, Valid) {
+  RegularExpression r1("^[0-9]+$");
+  cantFail(r1.GetError());
+  EXPECT_TRUE(r1.IsValid());
+  EXPECT_EQ("^[0-9]+$", r1.GetText());
+  EXPECT_TRUE(r1.Execute("916"));
+}
+
+TEST(RegularExpression, CopyAssignment) {
+  RegularExpression r1("^[0-9]+$");
+  RegularExpression r2 = r1;
+  cantFail(r2.GetError());
+  EXPECT_TRUE(r2.IsValid());
+  EXPECT_EQ("^[0-9]+$", r2.GetText());
+  EXPECT_TRUE(r2.Execute("916"));
+}
+
+TEST(RegularExpression, Empty) {
+  RegularExpression r1("");
+  Error err = r1.GetError();
+  EXPECT_TRUE(static_cast<bool>(err));
+  consumeError(std::move(err));
+  EXPECT_FALSE(r1.IsValid());
+  EXPECT_EQ("", r1.GetText());
+  EXPECT_FALSE(r1.Execute("916"));
+}
+
+TEST(RegularExpression, Invalid) {
+  RegularExpression r1("a[b-");
+  Error err = r1.GetError();
+  EXPECT_TRUE(static_cast<bool>(err));
+  consumeError(std::move(err));
+  EXPECT_FALSE(r1.IsValid());
+  EXPECT_EQ("a[b-", r1.GetText());
+  EXPECT_FALSE(r1.Execute("ab"));
+}
+
+TEST(RegularExpression, Match) {
+  RegularExpression r1("[0-9]+([a-f])?:([0-9]+)");
+  cantFail(r1.GetError());
+  EXPECT_TRUE(r1.IsValid());
+  EXPECT_EQ("[0-9]+([a-f])?:([0-9]+)", r1.GetText());
+
+  SmallVector<StringRef, 3> matches;
+  EXPECT_TRUE(r1.Execute("9a:513b", &matches));
+  EXPECT_EQ(3u, matches.size());
+  EXPECT_EQ("9a:513", matches[0].str());
+  EXPECT_EQ("a", matches[1].str());
+  EXPECT_EQ("513", matches[2].str());
+}