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[apt.git] / test / libapt / stringview_test.cc
1 #if !(defined APT_PKG_EXPOSE_STRING_VIEW)
2 #define APT_PKG_EXPOSE_STRING_VIEW
3 #endif
4
5 #include <config.h>
6 #include <apt-pkg/string_view.h>
7 #include <string>
8
9 #include <type_traits>
10
11 #include <gtest/gtest.h>
12
13 TEST(StringViewTest,EmptyString)
14 {
15 constexpr APT::StringView defString;
16 static_assert( 0 == defString.length(), "def right size");
17
18 APT::StringView strString{std::string{}};
19 EXPECT_EQ(0, strString.length());
20
21 constexpr char const * const charp = "";
22 constexpr APT::StringView charpString{charp, 0};
23 static_assert( 0 == charpString.length(), "charp right size");
24
25 APT::StringView charp2String{charp};
26 EXPECT_EQ(0, strString.length());
27
28 const APT::StringView charaString{""};
29 EXPECT_EQ(0, charaString.length());
30
31 EXPECT_TRUE(APT::StringView("") == "");
32 EXPECT_FALSE(APT::StringView("") != "");
33 }
34
35 TEST(StringViewTest,FooString)
36 {
37 constexpr APT::StringView defString("foo", 3);
38 static_assert( 3 == defString.length(), "def right size");
39 EXPECT_EQ(defString.to_string(), defString.data());
40
41 APT::StringView strString{std::string{"foo"}};
42 EXPECT_EQ(3, strString.length());
43 EXPECT_EQ(strString.to_string(), strString.data());
44
45 constexpr char const * const charp = "foo";
46 constexpr APT::StringView charpString{charp, 3};
47 EXPECT_EQ( 3, charpString.length());
48 EXPECT_EQ(charpString.to_string(), charpString.data());
49
50 APT::StringView charp2String{charp};
51 EXPECT_EQ(3, charp2String.length());
52 EXPECT_EQ(charp2String.to_string(), charp2String.data());
53
54 const APT::StringView charaString{"foo"};
55 EXPECT_EQ(3, charaString.length());
56 EXPECT_EQ(charaString.to_string(), charaString.data());
57
58 EXPECT_TRUE(APT::StringView("foo") == "foo");
59 EXPECT_FALSE(APT::StringView("foo") != "foo");
60 }
61
62 TEST(StringViewTest,SubStr)
63 {
64 const APT::StringView defString("Hello World!");
65 EXPECT_EQ(defString.to_string().substr(6), defString.substr(6).to_string());
66 EXPECT_EQ(defString.to_string().substr(0,5), defString.substr(0,5).to_string());
67 EXPECT_EQ(defString.to_string().substr(6,5), defString.substr(6,5).to_string());
68 }
69
70 TEST(StringViewTest,Find)
71 {
72 const APT::StringView defString("Hello World!");
73 EXPECT_EQ(defString.to_string().find('l'), defString.find('l'));
74 EXPECT_EQ(defString.to_string().find('X'), defString.find('X'));
75 EXPECT_EQ(defString.to_string().find('e',3), defString.find('e',3));
76 EXPECT_EQ(defString.to_string().find('l',6), defString.find('l',6));
77 EXPECT_EQ(defString.to_string().find('l',11), defString.find('l',11));
78 }
79
80 TEST(StringViewTest,RFind)
81 {
82 const APT::StringView defString("Hello World!");
83 EXPECT_EQ(defString.to_string().rfind('l'), defString.rfind('l'));
84 EXPECT_EQ(defString.to_string().rfind('X'), defString.rfind('X'));
85 EXPECT_EQ(defString.to_string().rfind('e',3), defString.rfind('e',3));
86 EXPECT_EQ(defString.to_string().rfind('l',6), defString.rfind('l',6));
87 EXPECT_EQ(defString.to_string().rfind('l',11), defString.rfind('l',11));
88 }