Revert "Eliminate all code related to the AutomaticProfileResetter."

chrome/tools/profile_reset/jtl_compiler_unittest.cc

+// 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