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 "build/build_config.h"
6#include "testing/gtest/include/gtest/gtest.h"
7#include "tools/gn/functions.h"
8#include "tools/gn/parse_tree.h"
9#include "tools/gn/test_with_scope.h"
10
11namespace {
12
13std::string RebaseOne(Scope* scope,
14                      const char* input,
15                      const char* to_dir,
16                      const char* from_dir) {
17  std::vector<Value> args;
18  args.push_back(Value(NULL, input));
19  args.push_back(Value(NULL, to_dir));
20  args.push_back(Value(NULL, from_dir));
21
22  Err err;
23  FunctionCallNode function;
24  Value result = functions::RunRebasePath(scope, &function, args, &err);
25  bool is_string = result.type() == Value::STRING;
26  EXPECT_TRUE(is_string);
27
28  return result.string_value();
29}
30
31}  // namespace
32
33TEST(RebasePath, Strings) {
34  TestWithScope setup;
35  setup.build_settings()->SetBuildDir(SourceDir("//out/Debug/"));
36  Scope* scope = setup.scope();
37  scope->set_source_dir(SourceDir("//tools/gn/"));
38
39  // Build-file relative paths.
40  EXPECT_EQ("../../tools/gn", RebaseOne(scope, ".", "//out/Debug", "."));
41  EXPECT_EQ("../../tools/gn/", RebaseOne(scope, "./", "//out/Debug", "."));
42  EXPECT_EQ("../../tools/gn/foo", RebaseOne(scope, "foo", "//out/Debug", "."));
43  EXPECT_EQ("../..", RebaseOne(scope, "../..", "//out/Debug", "."));
44  EXPECT_EQ("../../", RebaseOne(scope, "../../", "//out/Debug", "."));
45
46  // We don't allow going above the root source dir.
47  EXPECT_EQ("../..", RebaseOne(scope, "../../..", "//out/Debug", "."));
48
49  // Source-absolute input paths.
50  EXPECT_EQ("./", RebaseOne(scope, "//", "//", "//"));
51  EXPECT_EQ("foo", RebaseOne(scope, "//foo", "//", "//"));
52  EXPECT_EQ("foo/", RebaseOne(scope, "//foo/", "//", "//"));
53  EXPECT_EQ("../../foo/bar", RebaseOne(scope, "//foo/bar", "//out/Debug", "."));
54  EXPECT_EQ("./", RebaseOne(scope, "//foo/", "//foo/", "//"));
55  // Thie one is technically correct but could be simplified to "." if
56  // necessary.
57  EXPECT_EQ("../foo", RebaseOne(scope, "//foo", "//foo", "//"));
58
59  // Test slash conversion.
60  EXPECT_EQ("foo/bar", RebaseOne(scope, "foo/bar", ".", "."));
61  EXPECT_EQ("foo/bar", RebaseOne(scope, "foo\\bar", ".", "."));
62
63  // Test system path output.
64#if defined(OS_WIN)
65  setup.build_settings()->SetRootPath(base::FilePath(L"C:/source"));
66  EXPECT_EQ("C:/source", RebaseOne(scope, ".", "", "//"));
67  EXPECT_EQ("C:/source/", RebaseOne(scope, "//", "", "//"));
68  EXPECT_EQ("C:/source/foo", RebaseOne(scope, "foo", "", "//"));
69  EXPECT_EQ("C:/source/foo/", RebaseOne(scope, "foo/", "", "//"));
70  EXPECT_EQ("C:/source/tools/gn/foo", RebaseOne(scope, "foo", "", "."));
71#else
72  setup.build_settings()->SetRootPath(base::FilePath("/source"));
73  EXPECT_EQ("/source", RebaseOne(scope, ".", "", "//"));
74  EXPECT_EQ("/source/", RebaseOne(scope, "//", "", "//"));
75  EXPECT_EQ("/source/foo", RebaseOne(scope, "foo", "", "//"));
76  EXPECT_EQ("/source/foo/", RebaseOne(scope, "foo/", "", "//"));
77  EXPECT_EQ("/source/tools/gn/foo", RebaseOne(scope, "foo", "", "."));
78#endif
79}
80
81// Test list input.
82TEST(RebasePath, List) {
83  TestWithScope setup;
84  setup.build_settings()->SetBuildDir(SourceDir("//out/Debug/"));
85  setup.scope()->set_source_dir(SourceDir("//tools/gn/"));
86
87  std::vector<Value> args;
88  args.push_back(Value(NULL, Value::LIST));
89  args[0].list_value().push_back(Value(NULL, "foo.txt"));
90  args[0].list_value().push_back(Value(NULL, "bar.txt"));
91  args.push_back(Value(NULL, "//out/Debug/"));
92  args.push_back(Value(NULL, "."));
93
94  Err err;
95  FunctionCallNode function;
96  Value ret = functions::RunRebasePath(setup.scope(), &function, args, &err);
97  EXPECT_FALSE(err.has_error());
98
99  ASSERT_EQ(Value::LIST, ret.type());
100  ASSERT_EQ(2u, ret.list_value().size());
101
102  EXPECT_EQ("../../tools/gn/foo.txt", ret.list_value()[0].string_value());
103  EXPECT_EQ("../../tools/gn/bar.txt", ret.list_value()[1].string_value());
104}
105
106TEST(RebasePath, Errors) {
107  TestWithScope setup;
108  setup.build_settings()->SetBuildDir(SourceDir("//out/Debug/"));
109
110  // No arg input should issue an error.
111  Err err;
112  std::vector<Value> args;
113  FunctionCallNode function;
114  Value ret = functions::RunRebasePath(setup.scope(), &function, args, &err);
115  EXPECT_TRUE(err.has_error());
116}
117