1 /*
2 * Copyright (C) 2018 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "gmock/gmock.h"
18 #include "gtest/gtest.h"
19
20 #include "utils/strings/stringpiece.h"
21
22 namespace libtextclassifier3 {
23 namespace {
24
TEST(StringPieceTest,EndsWith)25 TEST(StringPieceTest, EndsWith) {
26 EXPECT_TRUE(EndsWith("hello there!", "there!"));
27 EXPECT_TRUE(EndsWith("hello there!", "!"));
28 EXPECT_FALSE(EndsWith("hello there!", "there"));
29 EXPECT_FALSE(EndsWith("hello there!", " hello there!"));
30 EXPECT_TRUE(EndsWith("hello there!", ""));
31 EXPECT_FALSE(EndsWith("", "hello there!"));
32 }
33
TEST(StringPieceTest,StartsWith)34 TEST(StringPieceTest, StartsWith) {
35 EXPECT_TRUE(StartsWith("hello there!", "hello"));
36 EXPECT_TRUE(StartsWith("hello there!", "hello "));
37 EXPECT_FALSE(StartsWith("hello there!", "there!"));
38 EXPECT_FALSE(StartsWith("hello there!", " hello there! "));
39 EXPECT_TRUE(StartsWith("hello there!", ""));
40 EXPECT_FALSE(StartsWith("", "hello there!"));
41 }
42
TEST(StringPieceTest,ConsumePrefix)43 TEST(StringPieceTest, ConsumePrefix) {
44 StringPiece str("hello there!");
45 EXPECT_TRUE(ConsumePrefix(&str, "hello "));
46 EXPECT_EQ(str.ToString(), "there!");
47 EXPECT_TRUE(ConsumePrefix(&str, "there"));
48 EXPECT_EQ(str.ToString(), "!");
49 EXPECT_FALSE(ConsumePrefix(&str, "!!"));
50 EXPECT_TRUE(ConsumePrefix(&str, ""));
51 EXPECT_TRUE(ConsumePrefix(&str, "!"));
52 EXPECT_EQ(str.ToString(), "");
53 EXPECT_TRUE(ConsumePrefix(&str, ""));
54 EXPECT_FALSE(ConsumePrefix(&str, "!"));
55 }
56
TEST(StringPieceTest,ConsumeSuffix)57 TEST(StringPieceTest, ConsumeSuffix) {
58 StringPiece str("hello there!");
59 EXPECT_TRUE(ConsumeSuffix(&str, "!"));
60 EXPECT_EQ(str.ToString(), "hello there");
61 EXPECT_TRUE(ConsumeSuffix(&str, " there"));
62 EXPECT_EQ(str.ToString(), "hello");
63 EXPECT_FALSE(ConsumeSuffix(&str, "!!"));
64 EXPECT_TRUE(ConsumeSuffix(&str, ""));
65 EXPECT_TRUE(ConsumeSuffix(&str, "hello"));
66 EXPECT_EQ(str.ToString(), "");
67 EXPECT_TRUE(ConsumeSuffix(&str, ""));
68 EXPECT_FALSE(ConsumeSuffix(&str, "!"));
69 }
70
TEST(StringPieceTest,Find)71 TEST(StringPieceTest, Find) {
72 StringPiece str("<hello there!>");
73 EXPECT_EQ(str.find('<'), 0);
74 EXPECT_EQ(str.find('>'), str.length() - 1);
75 EXPECT_EQ(str.find('?'), StringPiece::npos);
76 EXPECT_EQ(str.find('<', str.length() - 1), StringPiece::npos);
77 EXPECT_EQ(str.find('<', 0), 0);
78 EXPECT_EQ(str.find('>', str.length() - 1), str.length() - 1);
79 }
80
TEST(StringPieceTest,FindStringPiece)81 TEST(StringPieceTest, FindStringPiece) {
82 StringPiece str("<foo bar baz!>");
83 EXPECT_EQ(str.find("foo"), 1);
84 EXPECT_EQ(str.find("bar"), 5);
85 EXPECT_EQ(str.find("baz"), 9);
86 EXPECT_EQ(str.find("qux"), StringPiece::npos);
87 EXPECT_EQ(str.find("?"), StringPiece::npos);
88 EXPECT_EQ(str.find(">"), str.length() - 1);
89 EXPECT_EQ(str.find("<", str.length() - 1), StringPiece::npos);
90 EXPECT_EQ(str.find("<", 0), 0);
91 EXPECT_EQ(str.find(">", str.length() - 1), str.length() - 1);
92 }
93
94 } // namespace
95 } // namespace libtextclassifier3
96