| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "tools/gn/scheduler.h" |
| #include "tools/gn/test_with_scope.h" |
| |
| TEST(FunctionForwardVariablesFrom, List) { |
| Scheduler scheduler; |
| TestWithScope setup; |
| |
| // Defines a template and copy the two x and y, and z values out. |
| TestParseInput input( |
| "template(\"a\") {\n" |
| " forward_variables_from(invoker, [\"x\", \"y\", \"z\"])\n" |
| " assert(!defined(z))\n" // "z" should still be undefined. |
| " print(\"$target_name, $x, $y\")\n" |
| "}\n" |
| "a(\"target\") {\n" |
| " x = 1\n" |
| " y = 2\n" |
| "}\n"); |
| |
| ASSERT_FALSE(input.has_error()); |
| |
| Err err; |
| input.parsed()->Execute(setup.scope(), &err); |
| ASSERT_FALSE(err.has_error()) << err.message(); |
| |
| EXPECT_EQ("target, 1, 2\n", setup.print_output()); |
| setup.print_output().clear(); |
| } |
| |
| TEST(FunctionForwardVariablesFrom, ErrorCases) { |
| Scheduler scheduler; |
| TestWithScope setup; |
| |
| // Type check the source scope. |
| TestParseInput invalid_source( |
| "template(\"a\") {\n" |
| " forward_variables_from(42, [\"x\"])\n" |
| " print(\"$target_name\")\n" // Prevent unused var error. |
| "}\n" |
| "a(\"target\") {\n" |
| "}\n"); |
| ASSERT_FALSE(invalid_source.has_error()); |
| Err err; |
| invalid_source.parsed()->Execute(setup.scope(), &err); |
| EXPECT_TRUE(err.has_error()); |
| EXPECT_EQ("Expected an identifier for the scope.", err.message()); |
| |
| // Type check the list. We need to use a new template name each time since |
| // all of these invocations are executing in sequence in the same scope. |
| TestParseInput invalid_list( |
| "template(\"b\") {\n" |
| " forward_variables_from(invoker, 42)\n" |
| " print(\"$target_name\")\n" |
| "}\n" |
| "b(\"target\") {\n" |
| "}\n"); |
| ASSERT_FALSE(invalid_list.has_error()); |
| err = Err(); |
| invalid_list.parsed()->Execute(setup.scope(), &err); |
| EXPECT_TRUE(err.has_error()); |
| EXPECT_EQ("Not a valid list of variables to copy.", err.message()); |
| |
| // Programmatic values should error. |
| TestParseInput prog( |
| "template(\"c\") {\n" |
| " forward_variables_from(invoker, [\"root_out_dir\"])\n" |
| " print(\"$target_name\")\n" |
| "}\n" |
| "c(\"target\") {\n" |
| "}\n"); |
| ASSERT_FALSE(prog.has_error()); |
| err = Err(); |
| prog.parsed()->Execute(setup.scope(), &err); |
| EXPECT_TRUE(err.has_error()); |
| EXPECT_EQ("This value can't be forwarded.", err.message()); |
| } |
| |
| TEST(FunctionForwardVariablesFrom, Star) { |
| Scheduler scheduler; |
| TestWithScope setup; |
| |
| // Defines a template and copy the two x and y values out. The "*" behavior |
| // should clobber existing variables with the same name. |
| TestParseInput input( |
| "template(\"a\") {\n" |
| " x = 1000000\n" // Should be clobbered. |
| " forward_variables_from(invoker, \"*\")\n" |
| " print(\"$target_name, $x, $y\")\n" |
| "}\n" |
| "a(\"target\") {\n" |
| " x = 1\n" |
| " y = 2\n" |
| "}\n"); |
| |
| ASSERT_FALSE(input.has_error()); |
| |
| Err err; |
| input.parsed()->Execute(setup.scope(), &err); |
| ASSERT_FALSE(err.has_error()) << err.message(); |
| |
| EXPECT_EQ("target, 1, 2\n", setup.print_output()); |
| setup.print_output().clear(); |
| } |