tools/gn/function_rebase_path_unittest.cc

   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
  11 namespace {
  12
  13 std::string RebaseOne(Scope* scope,
  14                       const char* input,
  15                       const char* to_dir,
  16                       const char* from_dir,
  17                       const char* sep = NULL) {
  18   std::vector<Value> args;
  19   args.push_back(Value(NULL, input));
  20   args.push_back(Value(NULL, to_dir));
  21   args.push_back(Value(NULL, from_dir));
  22   if (sep)
  23     args.push_back(Value(NULL, sep));
  24
  25   Err err;
  26   FunctionCallNode function;
  27   Value result = functions::RunRebasePath(scope, &function, args, &err);
  28   bool is_string = result.type() == Value::STRING;
  29   EXPECT_TRUE(is_string);
  30
  31   return result.string_value();
  32 }
  33
  34 }  // namespace
  35
  36 TEST(RebasePath, Strings) {
  37   TestWithScope setup;
  38   setup.build_settings()->SetBuildDir(SourceDir("//out/Debug/"));
  39   Scope* scope = setup.scope();
  40   scope->set_source_dir(SourceDir("//tools/gn/"));
  41
  42   // Build-file relative paths.
  43   EXPECT_EQ("../../tools/gn", RebaseOne(scope, ".", "//out/Debug", "."));
  44   EXPECT_EQ("../../tools/gn/", RebaseOne(scope, "./", "//out/Debug", "."));
  45   EXPECT_EQ("../../tools/gn/foo", RebaseOne(scope, "foo", "//out/Debug", "."));
  46   EXPECT_EQ("../..", RebaseOne(scope, "../..", "//out/Debug", "."));
  47   EXPECT_EQ("../../", RebaseOne(scope, "../../", "//out/Debug", "."));
  48
  49   // We don't allow going above the root source dir.
  50   EXPECT_EQ("../..", RebaseOne(scope, "../../..", "//out/Debug", "."));
  51
  52   // Source-absolute input paths.
  53   EXPECT_EQ("./", RebaseOne(scope, "//", "//", "//"));
  54   EXPECT_EQ("foo", RebaseOne(scope, "//foo", "//", "//"));
  55   EXPECT_EQ("foo/", RebaseOne(scope, "//foo/", "//", "//"));
  56   EXPECT_EQ("../../foo/bar", RebaseOne(scope, "//foo/bar", "//out/Debug", "."));
  57   EXPECT_EQ("./", RebaseOne(scope, "//foo/", "//foo/", "//"));
  58   // Thie one is technically correct but could be simplified to "." if
  59   // necessary.
  60   EXPECT_EQ("../foo", RebaseOne(scope, "//foo", "//foo", "//"));
  61
  62   // Test slash conversion.
  63   EXPECT_EQ("foo/bar", RebaseOne(scope, "foo/bar", ".", ".", "to_slash"));
  64   EXPECT_EQ("foo/bar", RebaseOne(scope, "foo\\bar", ".", ".", "to_slash"));
  65 #if defined(OS_WIN)
  66   EXPECT_EQ("foo\\bar", RebaseOne(scope, "foo/bar", ".", ".", "to_system"));
  67   EXPECT_EQ("foo\\bar", RebaseOne(scope, "foo\\bar", ".", ".", "to_system"));
  68 #endif
  69
  70   // Test system path output.
  71 #if defined(OS_WIN)
  72   setup.build_settings()->SetRootPath(base::FilePath(L"C:\\source"));
  73   EXPECT_EQ("C:\\source", RebaseOne(scope, ".", "", "//"));
  74   EXPECT_EQ("C:\\source\\", RebaseOne(scope, "//", "", "//"));
  75   EXPECT_EQ("C:\\source\\foo", RebaseOne(scope, "foo", "", "//"));
  76   EXPECT_EQ("C:\\source\\foo\\", RebaseOne(scope, "foo/", "", "//"));
  77   EXPECT_EQ("C:\\source\\tools\\gn\\foo", RebaseOne(scope, "foo", "", "."));
  78 #else
  79   setup.build_settings()->SetRootPath(base::FilePath("/source"));
  80   EXPECT_EQ("/source", RebaseOne(scope, ".", "", "//"));
  81   EXPECT_EQ("/source/", RebaseOne(scope, "//", "", "//"));
  82   EXPECT_EQ("/source/foo", RebaseOne(scope, "foo", "", "//"));
  83   EXPECT_EQ("/source/foo/", RebaseOne(scope, "foo/", "", "//"));
  84   EXPECT_EQ("/source/tools/gn/foo", RebaseOne(scope, "foo", "", "."));
  85 #endif
  86 }
  87
  88 // Test list input.
  89 TEST(RebasePath, List) {
  90   TestWithScope setup;
  91   setup.build_settings()->SetBuildDir(SourceDir("//out/Debug/"));
  92   setup.scope()->set_source_dir(SourceDir("//tools/gn/"));
  93
  94   std::vector<Value> args;
  95   args.push_back(Value(NULL, Value::LIST));
  96   args[0].list_value().push_back(Value(NULL, "foo.txt"));
  97   args[0].list_value().push_back(Value(NULL, "bar.txt"));
  98   args.push_back(Value(NULL, "//out/Debug/"));
  99   args.push_back(Value(NULL, "."));
 100
 101   Err err;
 102   FunctionCallNode function;
 103   Value ret = functions::RunRebasePath(setup.scope(), &function, args, &err);
 104   EXPECT_FALSE(err.has_error());
 105
 106   ASSERT_EQ(Value::LIST, ret.type());
 107   ASSERT_EQ(2u, ret.list_value().size());
 108
 109   EXPECT_EQ("../../tools/gn/foo.txt", ret.list_value()[0].string_value());
 110   EXPECT_EQ("../../tools/gn/bar.txt", ret.list_value()[1].string_value());
 111 }
 112
 113 TEST(RebasePath, Errors) {
 114   TestWithScope setup;
 115   setup.build_settings()->SetBuildDir(SourceDir("//out/Debug/"));
 116
 117   // No arg input should issue an error.
 118   Err err;
 119   std::vector<Value> args;
 120   FunctionCallNode function;
 121   Value ret = functions::RunRebasePath(setup.scope(), &function, args, &err);
 122   EXPECT_TRUE(err.has_error());
 123 }