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// Copyright 2013 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 "chrome/tools/profile_reset/jtl_compiler.h"
#include <string>
#include "base/values.h"
#include "chrome/browser/profile_resetter/jtl_foundation.h"
#include "chrome/browser/profile_resetter/jtl_instructions.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
const char kTestHashSeed[] = "test-hash-seed";
// Helpers -------------------------------------------------------------------
std::string GetHash(const std::string& input) {
return jtl_foundation::Hasher(kTestHashSeed).GetHash(input);
}
static std::string EncodeUint32(uint32 value) {
std::string bytecode;
for (int i = 0; i < 4; ++i) {
bytecode.push_back(static_cast<char>(value & 0xFFu));
value >>= 8;
}
return bytecode;
}
// Tests ---------------------------------------------------------------------
// Note: Parsing and parsing-related errors are unit-tested separately in more
// detail in "jtl_parser_unittest.cc". Here, most of the time, we assume that
// creating the parse tree works.
TEST(JtlCompiler, CompileSingleInstructions) {
struct TestCase {
std::string source_code;
std::string expected_bytecode;
} cases[] = {
{"go(\"foo\").", OP_NAVIGATE(GetHash("foo"))},
{"go(\"has whitespace\t\").", OP_NAVIGATE(GetHash("has whitespace\t"))},
{"any.", OP_NAVIGATE_ANY},
{"back.", OP_NAVIGATE_BACK},
{"store_bool(\"name\", true).",
OP_STORE_BOOL(GetHash("name"), VALUE_TRUE)},
{"compare_stored_bool(\"name\", true, false).",
OP_COMPARE_STORED_BOOL(GetHash("name"), VALUE_TRUE, VALUE_FALSE)},
{"store_hash(\"name\", \"" + GetHash("value") + "\").",
OP_STORE_HASH(GetHash("name"), GetHash("value"))},
{"store_hashed(\"name\", \"value\").",
OP_STORE_HASH(GetHash("name"), GetHash("value"))},
{"store_node_bool(\"name\").", OP_STORE_NODE_BOOL(GetHash("name"))},
{"store_node_hash(\"name\").", OP_STORE_NODE_HASH(GetHash("name"))},
{"store_node_registerable_domain_hash(\"name\").",
OP_STORE_NODE_REGISTERABLE_DOMAIN_HASH(GetHash("name"))},
{"compare_stored_hashed(\"name\", \"value\", \"default\").",
OP_COMPARE_STORED_HASH(
GetHash("name"), GetHash("value"), GetHash("default"))},
{"compare_bool(false).", OP_COMPARE_NODE_BOOL(VALUE_FALSE)},
{"compare_bool(true).", OP_COMPARE_NODE_BOOL(VALUE_TRUE)},
{"compare_hashed(\"foo\").", OP_COMPARE_NODE_HASH(GetHash("foo"))},
{"compare_hashed_not(\"foo\").",
OP_COMPARE_NODE_HASH_NOT(GetHash("foo"))},
{"compare_to_stored_bool(\"name\").",
OP_COMPARE_NODE_TO_STORED_BOOL(GetHash("name"))},
{"compare_to_stored_hash(\"name\").",
OP_COMPARE_NODE_TO_STORED_HASH(GetHash("name"))},
{"compare_substring_hashed(\"pattern\").",
OP_COMPARE_NODE_SUBSTRING(
GetHash("pattern"), EncodeUint32(7), EncodeUint32(766))},
{"break.", OP_STOP_EXECUTING_SENTENCE},
{"break;", OP_STOP_EXECUTING_SENTENCE + OP_END_OF_SENTENCE}};
for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) {
SCOPED_TRACE(cases[i].source_code);
std::string bytecode;
EXPECT_TRUE(JtlCompiler::Compile(
cases[i].source_code, kTestHashSeed, &bytecode, NULL));
EXPECT_EQ(cases[i].expected_bytecode, bytecode);
}
}
TEST(JtlCompiler, CompileEntireProgram) {
const char kSourceCode[] =
"// Store \"x\"=true if path is found.\n"
"go(\"foo\").go(\"bar\").store_bool(\"x\", true);\n"
"// ...\n"
"// Store \"y\"=\"1\" if above value is set.\n"
"compare_stored_bool(\"x\", true, false).store_hashed(\"y\", \"1\");\n";
std::string expected_bytecode =
OP_NAVIGATE(GetHash("foo")) +
OP_NAVIGATE(GetHash("bar")) +
OP_STORE_BOOL(GetHash("x"), VALUE_TRUE) + OP_END_OF_SENTENCE +
OP_COMPARE_STORED_BOOL(GetHash("x"), VALUE_TRUE, VALUE_FALSE) +
OP_STORE_HASH(GetHash("y"), GetHash("1")) + OP_END_OF_SENTENCE;
std::string bytecode;
EXPECT_TRUE(
JtlCompiler::Compile(kSourceCode, kTestHashSeed, &bytecode, NULL));
EXPECT_EQ(expected_bytecode, bytecode);
}
TEST(JtlCompiler, InvalidOperationName) {
const char kSourceCode[] = "any()\n.\nnon_existent_instruction\n(\n)\n;\n";
std::string bytecode;
JtlCompiler::CompileError error;
EXPECT_FALSE(
JtlCompiler::Compile(kSourceCode, kTestHashSeed, &bytecode, &error));
EXPECT_THAT(error.context, testing::StartsWith("non_existent_instruction"));
EXPECT_EQ(2u, error.line_number);
EXPECT_EQ(JtlCompiler::CompileError::INVALID_OPERATION_NAME,
error.error_code);
}
TEST(JtlCompiler, InvalidArgumentsCount) {
const char* kSourceCodes[] = {
"any().\nstore_bool(\"name\", true, \"superfluous argument\");\n",
"any().\nstore_bool(\"name\");"}; // missing argument
for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kSourceCodes); ++i) {
SCOPED_TRACE(kSourceCodes[i]);
std::string bytecode;
JtlCompiler::CompileError error;
EXPECT_FALSE(JtlCompiler::Compile(
kSourceCodes[i], kTestHashSeed, &bytecode, &error));
EXPECT_THAT(error.context, testing::StartsWith("store_bool"));
EXPECT_EQ(1u, error.line_number);
EXPECT_EQ(JtlCompiler::CompileError::INVALID_ARGUMENT_COUNT,
error.error_code);
}
}
TEST(JtlCompiler, InvalidArgumentType) {
struct TestCase {
std::string expected_context_prefix;
std::string source_code;
} cases[] = {
{"compare_bool", "any()\n.\ncompare_bool(\"foo\");"},
{"compare_bool",
"any()\n.\ncompare_bool(\"01234567890123456789012345678901\");"},
{"compare_hashed", "any()\n.\ncompare_hashed(false);"},
{"store_hash", "any()\n.\nstore_hash(\"name\", false);"},
{"store_hash", "any()\n.\nstore_hash(\"name\", \"foo\");"},
{"compare_stored_bool",
"any()\n.\ncompare_stored_bool(\"name\", \"need a bool\", false);"},
{"compare_stored_bool",
"any()\n.\ncompare_stored_bool(\"name\", false, \"need a bool\");"},
{"compare_substring_hashed",
"any()\n.\ncompare_substring_hashed(true);"}};
for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) {
SCOPED_TRACE(cases[i].source_code);
std::string bytecode;
JtlCompiler::CompileError error;
EXPECT_FALSE(JtlCompiler::Compile(
cases[i].source_code, kTestHashSeed, &bytecode, &error));
EXPECT_THAT(error.context,
testing::StartsWith(cases[i].expected_context_prefix));
EXPECT_EQ(2u, error.line_number);
EXPECT_EQ(JtlCompiler::CompileError::INVALID_ARGUMENT_TYPE,
error.error_code);
}
}
TEST(JtlCompiler, InvalidArgumentValue) {
struct TestCase {
std::string expected_context_prefix;
std::string source_code;
} cases[] = {
{"compare_substring_hashed", "compare_substring_hashed(\"\");"}};
for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) {
SCOPED_TRACE(cases[i].source_code);
std::string bytecode;
JtlCompiler::CompileError error;
EXPECT_FALSE(JtlCompiler::Compile(
cases[i].source_code, kTestHashSeed, &bytecode, &error));
EXPECT_THAT(error.context,
testing::StartsWith(cases[i].expected_context_prefix));
EXPECT_EQ(0u, error.line_number);
EXPECT_EQ(JtlCompiler::CompileError::INVALID_ARGUMENT_VALUE,
error.error_code);
}
}
TEST(JtlCompiler, MistmatchedDoubleQuotes) {
const char kSourceCode[] = "any().\ngo(\"ok\", \"stray quote).break();";
std::string bytecode;
JtlCompiler::CompileError error;
EXPECT_FALSE(
JtlCompiler::Compile(kSourceCode, kTestHashSeed, &bytecode, &error));
EXPECT_EQ(1u, error.line_number);
EXPECT_EQ(JtlCompiler::CompileError::MISMATCHED_DOUBLE_QUOTES,
error.error_code);
}
TEST(JtlCompiler, ParsingError) {
const char kSourceCode[] = "any().\ngo()missing_separator();";
std::string bytecode;
JtlCompiler::CompileError error;
EXPECT_FALSE(
JtlCompiler::Compile(kSourceCode, kTestHashSeed, &bytecode, &error));
EXPECT_THAT(error.context, testing::StartsWith("go"));
EXPECT_EQ(1u, error.line_number);
EXPECT_EQ(JtlCompiler::CompileError::PARSING_ERROR, error.error_code);
}
} // namespace
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