1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include <stddef.h>
6
7 #include <iterator>
8
9 #include "base/macros.h"
10 #include "gn/err.h"
11 #include "gn/label.h"
12 #include "gn/value.h"
13 #include "util/build_config.h"
14 #include "util/test/test.h"
15
16 namespace {
17
18 struct ParseDepStringCase {
19 const char* cur_dir;
20 const char* str;
21 bool success;
22 const char* expected_dir;
23 const char* expected_name;
24 const char* expected_toolchain_dir;
25 const char* expected_toolchain_name;
26 };
27
28 } // namespace
29
TEST(Label,Resolve)30 TEST(Label, Resolve) {
31 ParseDepStringCase cases[] = {
32 {"//chrome/", "", false, "", "", "", ""},
33 {"//chrome/", "/", false, "", "", "", ""},
34 {"//chrome/", ":", false, "", "", "", ""},
35 {"//chrome/", "/:", false, "", "", "", ""},
36 {"//chrome/", "blah", true, "//chrome/blah/", "blah", "//t/", "d"},
37 {"//chrome/", "blah:bar", true, "//chrome/blah/", "bar", "//t/", "d"},
38 // Absolute paths.
39 {"//chrome/", "/chrome:bar", true, "/chrome/", "bar", "//t/", "d"},
40 {"//chrome/", "/chrome/:bar", true, "/chrome/", "bar", "//t/", "d"},
41 #if defined(OS_WIN)
42 {"//chrome/", "/C:/chrome:bar", true, "/C:/chrome/", "bar", "//t/", "d"},
43 {"//chrome/", "/C:/chrome/:bar", true, "/C:/chrome/", "bar", "//t/", "d"},
44 {"//chrome/", "C:/chrome:bar", true, "/C:/chrome/", "bar", "//t/", "d"},
45 #endif
46 // Refers to root dir.
47 {"//chrome/", "//:bar", true, "//", "bar", "//t/", "d"},
48 // Implicit directory
49 {"//chrome/", ":bar", true, "//chrome/", "bar", "//t/", "d"},
50 {"//chrome/renderer/", ":bar", true, "//chrome/renderer/", "bar", "//t/",
51 "d"},
52 // Implicit names.
53 {"//chrome/", "//base", true, "//base/", "base", "//t/", "d"},
54 {"//chrome/", "//base/i18n", true, "//base/i18n/", "i18n", "//t/", "d"},
55 {"//chrome/", "//base/i18n:foo", true, "//base/i18n/", "foo", "//t/", "d"},
56 {"//chrome/", "//", false, "", "", "", ""},
57 // Toolchain parsing.
58 {"//chrome/", "//chrome:bar(//t:n)", true, "//chrome/", "bar", "//t/", "n"},
59 {"//chrome/", "//chrome:bar(//t)", true, "//chrome/", "bar", "//t/", "t"},
60 {"//chrome/", "//chrome:bar(//t:)", true, "//chrome/", "bar", "//t/", "t"},
61 {"//chrome/", "//chrome:bar()", true, "//chrome/", "bar", "//t/", "d"},
62 {"//chrome/", "//chrome:bar(foo)", true, "//chrome/", "bar",
63 "//chrome/foo/", "foo"},
64 {"//chrome/", "//chrome:bar(:foo)", true, "//chrome/", "bar", "//chrome/",
65 "foo"},
66 // TODO(brettw) it might be nice to make this an error:
67 //{"//chrome/", "//chrome:bar())", false, "", "", "", "" },
68 {"//chrome/", "//chrome:bar(//t:bar(tc))", false, "", "", "", ""},
69 {"//chrome/", "//chrome:bar(()", false, "", "", "", ""},
70 {"//chrome/", "(t:b)", false, "", "", "", ""},
71 {"//chrome/", ":bar(//t/b)", true, "//chrome/", "bar", "//t/b/", "b"},
72 {"//chrome/", ":bar(/t/b)", true, "//chrome/", "bar", "/t/b/", "b"},
73 {"//chrome/", ":bar(t/b)", true, "//chrome/", "bar", "//chrome/t/b/", "b"},
74 };
75
76 Label default_toolchain(SourceDir("//t/"), "d");
77
78 for (size_t i = 0; i < std::size(cases); i++) {
79 const ParseDepStringCase& cur = cases[i];
80
81 std::string location, name;
82 Err err;
83 Value v(nullptr, Value::STRING);
84 v.string_value() = cur.str;
85 Label result = Label::Resolve(SourceDir(cur.cur_dir), std::string_view(),
86 default_toolchain, v, &err);
87 EXPECT_EQ(cur.success, !err.has_error()) << i << " " << cur.str;
88 if (!err.has_error() && cur.success) {
89 EXPECT_EQ(cur.expected_dir, result.dir().value()) << i << " " << cur.str;
90 EXPECT_EQ(cur.expected_name, result.name()) << i << " " << cur.str;
91 EXPECT_EQ(cur.expected_toolchain_dir, result.toolchain_dir().value())
92 << i << " " << cur.str;
93 EXPECT_EQ(cur.expected_toolchain_name, result.toolchain_name())
94 << i << " " << cur.str;
95 }
96 }
97 }
98
99 // Tests the case where the path resolves to something above "//". It should get
100 // converted to an absolute path "/foo/bar".
TEST(Label,ResolveAboveRootBuildDir)101 TEST(Label, ResolveAboveRootBuildDir) {
102 Label default_toolchain(SourceDir("//t/"), "d");
103
104 std::string location, name;
105 Err err;
106
107 SourceDir cur_dir("//cur/");
108 std::string source_root("/foo/bar/baz");
109
110 // No source root given, should not go above the root build dir.
111 Label result = Label::Resolve(cur_dir, std::string_view(), default_toolchain,
112 Value(nullptr, "../../..:target"), &err);
113 EXPECT_FALSE(err.has_error());
114 EXPECT_EQ("//", result.dir().value()) << result.dir().value();
115 EXPECT_EQ("target", result.name());
116
117 // Source root provided, it should go into that.
118 result = Label::Resolve(cur_dir, source_root, default_toolchain,
119 Value(nullptr, "../../..:target"), &err);
120 EXPECT_FALSE(err.has_error());
121 EXPECT_EQ("/foo/", result.dir().value()) << result.dir().value();
122 EXPECT_EQ("target", result.name());
123
124 // It should't go up higher than the system root.
125 result = Label::Resolve(cur_dir, source_root, default_toolchain,
126 Value(nullptr, "../../../../..:target"), &err);
127 EXPECT_FALSE(err.has_error());
128 EXPECT_EQ("/", result.dir().value()) << result.dir().value();
129 EXPECT_EQ("target", result.name());
130
131 // Test an absolute label that goes above the source root. This currently
132 // stops at the source root. It should arguably keep going and produce "/foo/"
133 // but this test just makes sure the current behavior isn't regressed by
134 // accident.
135 result = Label::Resolve(cur_dir, source_root, default_toolchain,
136 Value(nullptr, "//../.."), &err);
137 EXPECT_FALSE(err.has_error()) << err.message();
138 EXPECT_EQ("/foo/", result.dir().value()) << result.dir().value();
139 EXPECT_EQ("foo", result.name());
140 }
141