1 //===-- RegularExpressionTest.cpp -----------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "lldb/Utility/RegularExpression.h"
10 #include "llvm/ADT/SmallVector.h"
11 #include "gtest/gtest.h"
12 
13 using namespace lldb_private;
14 using namespace llvm;
15 
16 TEST(RegularExpression, Valid) {
17   RegularExpression r1("^[0-9]+$");
18   cantFail(r1.GetError());
19   EXPECT_TRUE(r1.IsValid());
20   EXPECT_EQ("^[0-9]+$", r1.GetText());
21   EXPECT_TRUE(r1.Execute("916"));
22 }
23 
24 TEST(RegularExpression, CopyAssignment) {
25   RegularExpression r1("^[0-9]+$");
26   RegularExpression r2 = r1;
27   cantFail(r2.GetError());
28   EXPECT_TRUE(r2.IsValid());
29   EXPECT_EQ("^[0-9]+$", r2.GetText());
30   EXPECT_TRUE(r2.Execute("916"));
31 }
32 
33 TEST(RegularExpression, Empty) {
34   RegularExpression r1("");
35   Error err = r1.GetError();
36   EXPECT_TRUE(static_cast<bool>(err));
37   consumeError(std::move(err));
38   EXPECT_FALSE(r1.IsValid());
39   EXPECT_EQ("", r1.GetText());
40   EXPECT_FALSE(r1.Execute("916"));
41 }
42 
43 TEST(RegularExpression, Invalid) {
44   RegularExpression r1("a[b-");
45   Error err = r1.GetError();
46   EXPECT_TRUE(static_cast<bool>(err));
47   consumeError(std::move(err));
48   EXPECT_FALSE(r1.IsValid());
49   EXPECT_EQ("a[b-", r1.GetText());
50   EXPECT_FALSE(r1.Execute("ab"));
51 }
52 
53 TEST(RegularExpression, Match) {
54   RegularExpression r1("[0-9]+([a-f])?:([0-9]+)");
55   cantFail(r1.GetError());
56   EXPECT_TRUE(r1.IsValid());
57   EXPECT_EQ("[0-9]+([a-f])?:([0-9]+)", r1.GetText());
58 
59   SmallVector<StringRef, 3> matches;
60   EXPECT_TRUE(r1.Execute("9a:513b", &matches));
61   EXPECT_EQ(3u, matches.size());
62   EXPECT_EQ("9a:513", matches[0].str());
63   EXPECT_EQ("a", matches[1].str());
64   EXPECT_EQ("513", matches[2].str());
65 }
66