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August 2018-08-08 17:48:24 +08:00
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android/system/tools/aidl/aidl_unittest.cpp Normal file
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/*
* Copyright (C) 2015, The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <memory>
#include <set>
#include <string>
#include <vector>
#include <android-base/stringprintf.h>
#include <gtest/gtest.h>
#include "aidl.h"
#include "aidl_language.h"
#include "tests/fake_io_delegate.h"
#include "type_cpp.h"
#include "type_java.h"
#include "type_namespace.h"
using android::aidl::test::FakeIoDelegate;
using android::base::StringPrintf;
using std::set;
using std::string;
using std::unique_ptr;
using std::vector;
using android::aidl::internals::parse_preprocessed_file;
namespace android {
namespace aidl {
namespace {
const char kExpectedDepFileContents[] =
R"(place/for/output/p/IFoo.java : \
p/IFoo.aidl
p/IFoo.aidl :
)";
const char kExpectedNinjaDepFileContents[] =
R"(place/for/output/p/IFoo.java : \
p/IFoo.aidl
)";
const char kExpectedParcelableDepFileContents[] =
R"( : \
p/Foo.aidl
p/Foo.aidl :
)";
} // namespace
class AidlTest : public ::testing::Test {
protected:
void SetUp() override {
java_types_.Init();
cpp_types_.Init();
}
unique_ptr<AidlInterface> Parse(const string& path,
const string& contents,
TypeNamespace* types,
AidlError* error = nullptr) {
io_delegate_.SetFileContents(path, contents);
unique_ptr<AidlInterface> ret;
std::vector<std::unique_ptr<AidlImport>> imports;
AidlError actual_error = ::android::aidl::internals::load_and_validate_aidl(
preprocessed_files_,
import_paths_,
path,
io_delegate_,
types,
&ret,
&imports);
if (error != nullptr) {
*error = actual_error;
}
return ret;
}
FakeIoDelegate io_delegate_;
vector<string> preprocessed_files_;
vector<string> import_paths_;
java::JavaTypeNamespace java_types_;
cpp::TypeNamespace cpp_types_;
};
TEST_F(AidlTest, JavaAcceptsMissingPackage) {
EXPECT_NE(nullptr, Parse("IFoo.aidl", "interface IFoo { }", &java_types_));
}
TEST_F(AidlTest, RejectsArraysOfBinders) {
import_paths_.push_back("");
io_delegate_.SetFileContents("bar/IBar.aidl",
"package bar; interface IBar {}");
string path = "foo/IFoo.aidl";
string contents = "package foo;\n"
"import bar.IBar;\n"
"interface IFoo { void f(in IBar[] input); }";
EXPECT_EQ(nullptr, Parse(path, contents, &java_types_));
EXPECT_EQ(nullptr, Parse(path, contents, &cpp_types_));
}
TEST_F(AidlTest, CppRejectsMissingPackage) {
EXPECT_EQ(nullptr, Parse("IFoo.aidl", "interface IFoo { }", &cpp_types_));
EXPECT_NE(nullptr,
Parse("a/IFoo.aidl", "package a; interface IFoo { }", &cpp_types_));
}
TEST_F(AidlTest, RejectsOnewayOutParameters) {
string oneway_interface =
"package a; oneway interface IFoo { void f(out int bar); }";
string oneway_method =
"package a; interface IBar { oneway void f(out int bar); }";
EXPECT_EQ(nullptr, Parse("a/IFoo.aidl", oneway_interface, &cpp_types_));
EXPECT_EQ(nullptr, Parse("a/IFoo.aidl", oneway_interface, &java_types_));
EXPECT_EQ(nullptr, Parse("a/IBar.aidl", oneway_method, &cpp_types_));
EXPECT_EQ(nullptr, Parse("a/IBar.aidl", oneway_method, &java_types_));
}
TEST_F(AidlTest, RejectsOnewayNonVoidReturn) {
string oneway_method = "package a; interface IFoo { oneway int f(); }";
EXPECT_EQ(nullptr, Parse("a/IFoo.aidl", oneway_method, &cpp_types_));
EXPECT_EQ(nullptr, Parse("a/IFoo.aidl", oneway_method, &java_types_));
}
TEST_F(AidlTest, RejectsNullablePrimitive) {
string oneway_method = "package a; interface IFoo { @nullable int f(); }";
EXPECT_EQ(nullptr, Parse("a/IFoo.aidl", oneway_method, &cpp_types_));
EXPECT_EQ(nullptr, Parse("a/IFoo.aidl", oneway_method, &java_types_));
}
TEST_F(AidlTest, ParsesNullableAnnotation) {
for (auto is_nullable: {true, false}) {
auto parse_result = Parse(
"a/IFoo.aidl",
StringPrintf( "package a; interface IFoo {%s String f(); }",
(is_nullable) ? "@nullable" : ""),
&cpp_types_);
ASSERT_NE(nullptr, parse_result);
ASSERT_FALSE(parse_result->GetMethods().empty());
EXPECT_EQ(parse_result->GetMethods()[0]->GetType().IsNullable(),
is_nullable);
}
}
TEST_F(AidlTest, ParsesUtf8Annotations) {
for (auto is_utf8: {true, false}) {
auto parse_result = Parse(
"a/IFoo.aidl",
StringPrintf( "package a; interface IFoo {%s String f(); }",
(is_utf8) ? "@utf8InCpp" : ""),
&cpp_types_);
ASSERT_NE(nullptr, parse_result);
ASSERT_FALSE(parse_result->GetMethods().empty());
EXPECT_EQ(parse_result->GetMethods()[0]->GetType().IsUtf8InCpp(),
is_utf8);
}
}
TEST_F(AidlTest, AcceptsOneway) {
string oneway_method = "package a; interface IFoo { oneway void f(int a); }";
string oneway_interface =
"package a; oneway interface IBar { void f(int a); }";
EXPECT_NE(nullptr, Parse("a/IFoo.aidl", oneway_method, &cpp_types_));
EXPECT_NE(nullptr, Parse("a/IFoo.aidl", oneway_method, &java_types_));
EXPECT_NE(nullptr, Parse("a/IBar.aidl", oneway_interface, &cpp_types_));
EXPECT_NE(nullptr, Parse("a/IBar.aidl", oneway_interface, &java_types_));
}
TEST_F(AidlTest, ParsesPreprocessedFile) {
string simple_content = "parcelable a.Foo;\ninterface b.IBar;";
io_delegate_.SetFileContents("path", simple_content);
EXPECT_FALSE(java_types_.HasTypeByCanonicalName("a.Foo"));
EXPECT_TRUE(parse_preprocessed_file(io_delegate_, "path", &java_types_));
EXPECT_TRUE(java_types_.HasTypeByCanonicalName("a.Foo"));
EXPECT_TRUE(java_types_.HasTypeByCanonicalName("b.IBar"));
}
TEST_F(AidlTest, ParsesPreprocessedFileWithWhitespace) {
string simple_content = "parcelable a.Foo;\n interface b.IBar ;\t";
io_delegate_.SetFileContents("path", simple_content);
EXPECT_FALSE(java_types_.HasTypeByCanonicalName("a.Foo"));
EXPECT_TRUE(parse_preprocessed_file(io_delegate_, "path", &java_types_));
EXPECT_TRUE(java_types_.HasTypeByCanonicalName("a.Foo"));
EXPECT_TRUE(java_types_.HasTypeByCanonicalName("b.IBar"));
}
TEST_F(AidlTest, PreferImportToPreprocessed) {
io_delegate_.SetFileContents("preprocessed", "interface another.IBar;");
io_delegate_.SetFileContents("one/IBar.aidl", "package one; "
"interface IBar {}");
preprocessed_files_.push_back("preprocessed");
import_paths_.push_back("");
auto parse_result = Parse(
"p/IFoo.aidl", "package p; import one.IBar; interface IFoo {}",
&java_types_);
EXPECT_NE(nullptr, parse_result);
// We expect to know about both kinds of IBar
EXPECT_TRUE(java_types_.HasTypeByCanonicalName("one.IBar"));
EXPECT_TRUE(java_types_.HasTypeByCanonicalName("another.IBar"));
// But if we request just "IBar" we should get our imported one.
AidlType ambiguous_type("IBar", 0, "", false /* not an array */);
const java::Type* type = java_types_.Find(ambiguous_type);
ASSERT_TRUE(type);
EXPECT_EQ("one.IBar", type->CanonicalName());
}
TEST_F(AidlTest, WritePreprocessedFile) {
io_delegate_.SetFileContents("p/Outer.aidl",
"package p; parcelable Outer.Inner;");
io_delegate_.SetFileContents("one/IBar.aidl", "package one; import p.Outer;"
"interface IBar {}");
JavaOptions options;
options.output_file_name_ = "preprocessed";
options.files_to_preprocess_.resize(2);
options.files_to_preprocess_[0] = "p/Outer.aidl";
options.files_to_preprocess_[1] = "one/IBar.aidl";
EXPECT_TRUE(::android::aidl::preprocess_aidl(options, io_delegate_));
string output;
EXPECT_TRUE(io_delegate_.GetWrittenContents("preprocessed", &output));
EXPECT_EQ("parcelable p.Outer.Inner;\ninterface one.IBar;\n", output);
}
TEST_F(AidlTest, RequireOuterClass) {
io_delegate_.SetFileContents("p/Outer.aidl",
"package p; parcelable Outer.Inner;");
import_paths_.push_back("");
auto parse_result = Parse(
"p/IFoo.aidl",
"package p; import p.Outer; interface IFoo { void f(in Inner c); }",
&java_types_);
EXPECT_EQ(nullptr, parse_result);
}
TEST_F(AidlTest, ParseCompoundParcelableFromPreprocess) {
io_delegate_.SetFileContents("preprocessed",
"parcelable p.Outer.Inner;");
preprocessed_files_.push_back("preprocessed");
auto parse_result = Parse(
"p/IFoo.aidl",
"package p; interface IFoo { void f(in Inner c); }",
&java_types_);
// TODO(wiley): This should actually return nullptr because we require
// the outer class name. However, for legacy reasons,
// this behavior must be maintained. b/17415692
EXPECT_NE(nullptr, parse_result);
}
TEST_F(AidlTest, FailOnParcelable) {
JavaOptions options;
options.input_file_name_ = "p/IFoo.aidl";
io_delegate_.SetFileContents(options.input_file_name_,
"package p; parcelable IFoo;");
// By default, we shouldn't fail on parcelable.
EXPECT_EQ(0, ::android::aidl::compile_aidl_to_java(options, io_delegate_));
options.fail_on_parcelable_ = true;
EXPECT_NE(0, ::android::aidl::compile_aidl_to_java(options, io_delegate_));
}
TEST_F(AidlTest, FailOnDuplicateConstantNames) {
AidlError reported_error;
EXPECT_EQ(nullptr,
Parse("p/IFoo.aidl",
R"(package p;
interface IFoo {
const String DUPLICATED = "d";
const int DUPLICATED = 1;
}
)",
&cpp_types_,
&reported_error));
EXPECT_EQ(AidlError::BAD_CONSTANTS, reported_error);
}
TEST_F(AidlTest, FailOnMalformedConstHexValue) {
AidlError reported_error;
EXPECT_EQ(nullptr,
Parse("p/IFoo.aidl",
R"(package p;
interface IFoo {
const int BAD_HEX_VALUE = 0xffffffffffffffffff;
}
)",
&cpp_types_,
&reported_error));
EXPECT_EQ(AidlError::BAD_CONSTANTS, reported_error);
}
TEST_F(AidlTest, ParsePositiveConstHexValue) {
AidlError reported_error;
auto cpp_parse_result =
Parse("p/IFoo.aidl",
R"(package p;
interface IFoo {
const int POSITIVE_HEX_VALUE = 0xf5;
}
)",
&cpp_types_,
&reported_error);
EXPECT_NE(nullptr, cpp_parse_result);
const auto& cpp_int_constants = cpp_parse_result->GetIntConstants();
EXPECT_EQ((size_t)1, cpp_int_constants.size());
EXPECT_EQ("POSITIVE_HEX_VALUE", cpp_int_constants[0]->GetName());
EXPECT_EQ(245, cpp_int_constants[0]->GetValue());
}
TEST_F(AidlTest, ParseNegativeConstHexValue) {
AidlError reported_error;
auto cpp_parse_result =
Parse("p/IFoo.aidl",
R"(package p;
interface IFoo {
const int NEGATIVE_HEX_VALUE = 0xffffffff;
}
)",
&cpp_types_,
&reported_error);
EXPECT_NE(nullptr, cpp_parse_result);
const auto& cpp_int_constants = cpp_parse_result->GetIntConstants();
EXPECT_EQ((size_t)1, cpp_int_constants.size());
EXPECT_EQ("NEGATIVE_HEX_VALUE", cpp_int_constants[0]->GetName());
EXPECT_EQ(-1, cpp_int_constants[0]->GetValue());
}
TEST_F(AidlTest, UnderstandsNestedParcelables) {
io_delegate_.SetFileContents(
"p/Outer.aidl",
"package p; parcelable Outer.Inner cpp_header \"baz/header\";");
import_paths_.push_back("");
const string input_path = "p/IFoo.aidl";
const string input = "package p; import p.Outer; interface IFoo"
" { Outer.Inner get(); }";
auto cpp_parse_result = Parse(input_path, input, &cpp_types_);
EXPECT_NE(nullptr, cpp_parse_result);
auto cpp_type = cpp_types_.FindTypeByCanonicalName("p.Outer.Inner");
ASSERT_NE(nullptr, cpp_type);
// C++ uses "::" instead of "." to refer to a inner class.
EXPECT_EQ("::p::Outer::Inner", cpp_type->CppType());
}
TEST_F(AidlTest, UnderstandsNativeParcelables) {
io_delegate_.SetFileContents(
"p/Bar.aidl",
"package p; parcelable Bar cpp_header \"baz/header\";");
import_paths_.push_back("");
const string input_path = "p/IFoo.aidl";
const string input = "package p; import p.Bar; interface IFoo { }";
// C++ understands C++ specific stuff
auto cpp_parse_result = Parse(input_path, input, &cpp_types_);
EXPECT_NE(nullptr, cpp_parse_result);
auto cpp_type = cpp_types_.FindTypeByCanonicalName("p.Bar");
ASSERT_NE(nullptr, cpp_type);
EXPECT_EQ("::p::Bar", cpp_type->CppType());
set<string> headers;
cpp_type->GetHeaders(&headers);
EXPECT_EQ(1u, headers.size());
EXPECT_EQ(1u, headers.count("baz/header"));
// Java ignores C++ specific stuff
auto java_parse_result = Parse(input_path, input, &java_types_);
EXPECT_NE(nullptr, java_parse_result);
auto java_type = java_types_.FindTypeByCanonicalName("p.Bar");
ASSERT_NE(nullptr, java_type);
EXPECT_EQ("p.Bar", java_type->InstantiableName());
}
TEST_F(AidlTest, WritesCorrectDependencyFile) {
// While the in tree build system always gives us an output file name,
// other android tools take advantage of our ability to infer the intended
// file name. This test makes sure we handle this correctly.
JavaOptions options;
options.input_file_name_ = "p/IFoo.aidl";
options.output_base_folder_ = "place/for/output";
options.dep_file_name_ = "dep/file/path";
io_delegate_.SetFileContents(options.input_file_name_,
"package p; interface IFoo {}");
EXPECT_EQ(0, ::android::aidl::compile_aidl_to_java(options, io_delegate_));
string actual_dep_file_contents;
EXPECT_TRUE(io_delegate_.GetWrittenContents(options.dep_file_name_,
&actual_dep_file_contents));
EXPECT_EQ(actual_dep_file_contents, kExpectedDepFileContents);
}
TEST_F(AidlTest, WritesCorrectDependencyFileNinja) {
// While the in tree build system always gives us an output file name,
// other android tools take advantage of our ability to infer the intended
// file name. This test makes sure we handle this correctly.
JavaOptions options;
options.input_file_name_ = "p/IFoo.aidl";
options.output_base_folder_ = "place/for/output";
options.dep_file_name_ = "dep/file/path";
options.dep_file_ninja_ = true;
io_delegate_.SetFileContents(options.input_file_name_,
"package p; interface IFoo {}");
EXPECT_EQ(0, ::android::aidl::compile_aidl_to_java(options, io_delegate_));
string actual_dep_file_contents;
EXPECT_TRUE(io_delegate_.GetWrittenContents(options.dep_file_name_,
&actual_dep_file_contents));
EXPECT_EQ(actual_dep_file_contents, kExpectedNinjaDepFileContents);
}
TEST_F(AidlTest, WritesTrivialDependencyFileForParcelable) {
// The SDK uses aidl to decide whether a .aidl file is a parcelable. It does
// this by calling aidl with every .aidl file it finds, then parsing the
// generated dependency files. Those that reference .java output files are
// for interfaces and those that do not are parcelables. However, for both
// parcelables and interfaces, we *must* generate a non-empty dependency file.
JavaOptions options;
options.input_file_name_ = "p/Foo.aidl";
options.output_base_folder_ = "place/for/output";
options.dep_file_name_ = "dep/file/path";
io_delegate_.SetFileContents(options.input_file_name_,
"package p; parcelable Foo;");
EXPECT_EQ(0, ::android::aidl::compile_aidl_to_java(options, io_delegate_));
string actual_dep_file_contents;
EXPECT_TRUE(io_delegate_.GetWrittenContents(options.dep_file_name_,
&actual_dep_file_contents));
EXPECT_EQ(actual_dep_file_contents, kExpectedParcelableDepFileContents);
}
} // namespace aidl
} // namespace android