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third_party/crashpad/crashpad/minidump/minidump_string_writer_test.cc

Index: third_party/crashpad/crashpad/minidump/minidump_string_writer_test.cc
diff --git a/third_party/crashpad/crashpad/minidump/minidump_string_writer_test.cc b/third_party/crashpad/crashpad/minidump/minidump_string_writer_test.cc
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+// Copyright 2014 The Crashpad Authors. All rights reserved.
+//
+// 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 "minidump/minidump_string_writer.h"
+
+#include <windows.h>
+#include <dbghelp.h>
+#include <sys/types.h>
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/format_macros.h"
+#include "base/strings/string16.h"
+#include "base/strings/stringprintf.h"
+#include "base/strings/utf_string_conversions.h"
+#include "gtest/gtest.h"
+#include "minidump/test/minidump_rva_list_test_util.h"
+#include "minidump/test/minidump_string_writer_test_util.h"
+#include "minidump/test/minidump_writable_test_util.h"
+#include "util/file/string_file.h"
+
+namespace crashpad {
+namespace test {
+namespace {
+
+TEST(MinidumpStringWriter, MinidumpUTF16StringWriter) {
+  StringFile string_file;
+
+  {
+    SCOPED_TRACE("unset");
+    string_file.Reset();
+    crashpad::internal::MinidumpUTF16StringWriter string_writer;
+    EXPECT_TRUE(string_writer.WriteEverything(&string_file));
+    ASSERT_EQ(6u, string_file.string().size());
+
+    const MINIDUMP_STRING* minidump_string =
+        MinidumpStringAtRVA(string_file.string(), 0);
+    EXPECT_TRUE(minidump_string);
+    EXPECT_EQ(base::string16(),
+              MinidumpStringAtRVAAsString(string_file.string(), 0));
+  }
+
+  const struct {
+    size_t input_length;
+    const char* input_string;
+    size_t output_length;
+    base::char16 output_string[10];
+  } kTestData[] = {
+      {0, "", 0, {}},
+      {1, "a", 1, {'a'}},
+      {2, "\0b", 2, {0, 'b'}},
+      {3, "cde", 3, {'c', 'd', 'e'}},
+      {9, "Hi world!", 9, {'H', 'i', ' ', 'w', 'o', 'r', 'l', 'd', '!'}},
+      {7, "ret\nurn", 7, {'r', 'e', 't', '\n', 'u', 'r', 'n'}},
+      {2, "\303\251", 1, {0x00e9}},  // é
+
+      // oóöőo
+      {8, "o\303\263\303\266\305\221o", 5, {'o', 0x00f3, 0x00f6, 0x151, 'o'}},
+      {4, "\360\220\204\202", 2, {0xd800, 0xdd02}},  // 𐄂 (non-BMP)
+  };
+
+  for (size_t index = 0; index < arraysize(kTestData); ++index) {
+    SCOPED_TRACE(base::StringPrintf(
+        "index %" PRIuS ", input %s", index, kTestData[index].input_string));
+
+    // Make sure that the expected output string with its NUL terminator fits in
+    // the space provided.
+    ASSERT_EQ(
+        0,
+        kTestData[index]
+            .output_string[arraysize(kTestData[index].output_string) - 1]);
+
+    string_file.Reset();
+    crashpad::internal::MinidumpUTF16StringWriter string_writer;
+    string_writer.SetUTF8(std::string(kTestData[index].input_string,
+                                      kTestData[index].input_length));
+    EXPECT_TRUE(string_writer.WriteEverything(&string_file));
+
+    const size_t expected_utf16_units_with_nul =
+        kTestData[index].output_length + 1;
+    MINIDUMP_STRING tmp = {0};
+    ALLOW_UNUSED_LOCAL(tmp);
+    const size_t expected_utf16_bytes =
+        expected_utf16_units_with_nul * sizeof(tmp.Buffer[0]);
+    ASSERT_EQ(sizeof(MINIDUMP_STRING) + expected_utf16_bytes,
+              string_file.string().size());
+
+    const MINIDUMP_STRING* minidump_string =
+        MinidumpStringAtRVA(string_file.string(), 0);
+    EXPECT_TRUE(minidump_string);
+    base::string16 expect_string = base::string16(
+        kTestData[index].output_string, kTestData[index].output_length);
+    EXPECT_EQ(expect_string,
+              MinidumpStringAtRVAAsString(string_file.string(), 0));
+  }
+}
+
+TEST(MinidumpStringWriter, ConvertInvalidUTF8ToUTF16) {
+  StringFile string_file;
+
+  const char* kTestData[] = {
+      "\200",  // continuation byte
+      "\300",  // start byte followed by EOF
+      "\310\177",  // start byte without continuation
+      "\340\200",  // EOF in middle of 3-byte sequence
+      "\340\200\115",  // invalid 3-byte sequence
+      "\303\0\251",  // NUL in middle of valid sequence
+  };
+
+  for (size_t index = 0; index < arraysize(kTestData); ++index) {
+    SCOPED_TRACE(base::StringPrintf(
+        "index %" PRIuS ", input %s", index, kTestData[index]));
+    string_file.Reset();
+    crashpad::internal::MinidumpUTF16StringWriter string_writer;
+    string_writer.SetUTF8(kTestData[index]);
+    EXPECT_TRUE(string_writer.WriteEverything(&string_file));
+
+    // The requirements for conversion of invalid UTF-8 input are lax. Make sure
+    // that at least enough data was written for a string that has one unit and
+    // a NUL terminator, make sure that the length field matches the length of
+    // data written, and make sure that at least one U+FFFD replacement
+    // character was written.
+    const MINIDUMP_STRING* minidump_string =
+        MinidumpStringAtRVA(string_file.string(), 0);
+    EXPECT_TRUE(minidump_string);
+    MINIDUMP_STRING tmp = {0};
+    ALLOW_UNUSED_LOCAL(tmp);
+    EXPECT_EQ(string_file.string().size() - sizeof(MINIDUMP_STRING) -
+                  sizeof(tmp.Buffer[0]),
+              minidump_string->Length);
+    base::string16 output_string =
+        MinidumpStringAtRVAAsString(string_file.string(), 0);
+    EXPECT_FALSE(output_string.empty());
+    EXPECT_NE(base::string16::npos, output_string.find(0xfffd));
+  }
+}
+
+TEST(MinidumpStringWriter, MinidumpUTF8StringWriter) {
+  StringFile string_file;
+
+  {
+    SCOPED_TRACE("unset");
+    string_file.Reset();
+    crashpad::internal::MinidumpUTF8StringWriter string_writer;
+    EXPECT_TRUE(string_writer.WriteEverything(&string_file));
+    ASSERT_EQ(5u, string_file.string().size());
+
+    const MinidumpUTF8String* minidump_string =
+        MinidumpUTF8StringAtRVA(string_file.string(), 0);
+    EXPECT_TRUE(minidump_string);
+    EXPECT_EQ(std::string(),
+              MinidumpUTF8StringAtRVAAsString(string_file.string(), 0));
+  }
+
+  const struct {
+    size_t length;
+    const char* string;
+  } kTestData[] = {
+      {0, ""},
+      {1, "a"},
+      {2, "\0b"},
+      {3, "cde"},
+      {9, "Hi world!"},
+      {7, "ret\nurn"},
+      {2, "\303\251"},  // é
+
+      // oóöőo
+      {8, "o\303\263\303\266\305\221o"},
+      {4, "\360\220\204\202"},  // 𐄂 (non-BMP)
+  };
+
+  for (size_t index = 0; index < arraysize(kTestData); ++index) {
+    SCOPED_TRACE(base::StringPrintf(
+        "index %" PRIuS ", input %s", index, kTestData[index].string));
+
+    string_file.Reset();
+    crashpad::internal::MinidumpUTF8StringWriter string_writer;
+    std::string test_string(kTestData[index].string, kTestData[index].length);
+    string_writer.SetUTF8(test_string);
+    EXPECT_EQ(test_string, string_writer.UTF8());
+    EXPECT_TRUE(string_writer.WriteEverything(&string_file));
+
+    const size_t expected_utf8_bytes_with_nul = kTestData[index].length + 1;
+    ASSERT_EQ(sizeof(MinidumpUTF8String) + expected_utf8_bytes_with_nul,
+              string_file.string().size());
+
+    const MinidumpUTF8String* minidump_string =
+        MinidumpUTF8StringAtRVA(string_file.string(), 0);
+    EXPECT_TRUE(minidump_string);
+    EXPECT_EQ(test_string,
+              MinidumpUTF8StringAtRVAAsString(string_file.string(), 0));
+  }
+}
+
+struct MinidumpUTF16StringListWriterTraits {
+  using MinidumpStringListWriterType = MinidumpUTF16StringListWriter;
+  static base::string16 ExpectationForUTF8(const std::string& utf8) {
+    return base::UTF8ToUTF16(utf8);
+  }
+  static base::string16 ObservationAtRVA(const std::string& file_contents,
+                                         RVA rva) {
+    return MinidumpStringAtRVAAsString(file_contents, rva);
+  }
+};
+
+struct MinidumpUTF8StringListWriterTraits {
+  using MinidumpStringListWriterType = MinidumpUTF8StringListWriter;
+  static std::string ExpectationForUTF8(const std::string& utf8) {
+    return utf8;
+  }
+  static std::string ObservationAtRVA(const std::string& file_contents,
+                                      RVA rva) {
+    return MinidumpUTF8StringAtRVAAsString(file_contents, rva);
+  }
+};
+
+template <typename Traits>
+void MinidumpStringListTest() {
+  std::vector<std::string> strings;
+  strings.push_back(std::string("One"));
+  strings.push_back(std::string());
+  strings.push_back(std::string("3"));
+  strings.push_back(std::string("\360\237\222\251"));
+
+  typename Traits::MinidumpStringListWriterType string_list_writer;
+  EXPECT_FALSE(string_list_writer.IsUseful());
+  string_list_writer.InitializeFromVector(strings);
+  EXPECT_TRUE(string_list_writer.IsUseful());
+
+  StringFile string_file;
+
+  ASSERT_TRUE(string_list_writer.WriteEverything(&string_file));
+
+  const MinidumpRVAList* list =
+      MinidumpRVAListAtStart(string_file.string(), strings.size());
+  ASSERT_TRUE(list);
+
+  for (size_t index = 0; index < strings.size(); ++index) {
+    EXPECT_EQ(Traits::ExpectationForUTF8(strings[index]),
+              Traits::ObservationAtRVA(string_file.string(),
+                                       list->children[index]));
+  }
+}
+
+TEST(MinidumpStringWriter, MinidumpUTF16StringList) {
+  MinidumpStringListTest<MinidumpUTF16StringListWriterTraits>();
+}
+
+TEST(MinidumpStringWriter, MinidumpUTF8StringList) {
+  MinidumpStringListTest<MinidumpUTF8StringListWriterTraits>();
+}
+
+}  // namespace
+}  // namespace test
+}  // namespace crashpad