Add unittest for minidump file writer. Fixes issue #85.

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@90 4c0a9323-5329-0410-9bdc-e9ce6186880e

src/client/minidump_file_writer_unittest.cc

@@ -0,0 +1,160 @@
+// Copyright (c) 2006, Google Inc. All rights reserved.
+// Author: waylonis@google.com (Dan Waylonis)
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+/*
+ g++ -I../ ../common/convert_UTF.c \
+ ../common/string_conversion.cc \
+ minidump_file_writer.cc \
+ minidump_file_writer_unittest.cc \
+ -o minidump_file_writer_unittest
+ */
+
+#include <fcntl.h>
+#include <unistd.h>
+
+#include "minidump_file_writer-inl.h"
+
+using google_airbag::MinidumpFileWriter;
+
+#define ASSERT_TRUE(cond) \
+if (!(cond)) { \
+  fprintf(stderr, "FAILED: %s at %s:%d\n", #cond, __FILE__, __LINE__); \
+    return false; \
+}
+
+#define ASSERT_EQ(e1, e2) ASSERT_TRUE((e1) == (e2))
+#define ASSERT_NE(e1, e2) ASSERT_TRUE((e1) != (e2))
+
+struct StringStructure {
+  unsigned long integer_value;
+  MDLocationDescriptor first_string;
+  MDLocationDescriptor second_string;
+};
+
+struct ArrayStructure {
+  unsigned char char_value;
+  unsigned short short_value;
+  unsigned long long_value;
+};
+
+typedef struct {
+  unsigned long count;
+  ArrayStructure array[0];
+} ObjectAndArrayStructure;
+
+static bool WriteFile(const char *path) {
+  MinidumpFileWriter writer;
+  if (writer.Open(path)) {
+    // Test a single structure
+    google_airbag::TypedMDRVA<StringStructure> strings(&writer);
+    ASSERT_TRUE(strings.Allocate());
+    strings.get()->integer_value = 0xBEEF;
+    const char *first = "First String";
+    ASSERT_TRUE(writer.WriteString(first, 0, &strings.get()->first_string));
+    const wchar_t *second = L"Second String";
+    ASSERT_TRUE(writer.WriteString(second, 0, &strings.get()->second_string));
+
+    // Test an array structure
+    google_airbag::TypedMDRVA<ArrayStructure> array(&writer);
+    unsigned int count = 10;
+    ASSERT_TRUE(array.AllocateArray(count));
+    for (unsigned int i = 0; i < count; ++i) {
+      ArrayStructure local;
+      local.char_value = i;
+      local.short_value = i + 1;
+      local.long_value = i + 2;
+      ASSERT_TRUE(array.CopyIndex(i, &local));
+    }
+
+    // Test an object followed by an array
+    google_airbag::TypedMDRVA<ObjectAndArrayStructure> obj_array(&writer);
+    ASSERT_TRUE(obj_array.AllocateObjectAndArray(count,
+                                                 sizeof(ArrayStructure)));
+    obj_array.get()->count = count;
+    for (unsigned int i = 0; i < count; ++i) {
+      ArrayStructure local;
+      local.char_value = i;
+      local.short_value = i + 1;
+      local.long_value = i + 2;
+      ASSERT_TRUE(obj_array.CopyIndexAfterObject(i, &local, sizeof(local)));
+    }
+  }
+
+  return writer.Close();
+}
+
+static bool CompareFile(const char *path) {
+  unsigned long expected[] = {
+#if defined(__BIG_ENDIAN__)
+    0x0000beef, 0x0000001e, 0x00000018, 0x00000020, 0x00000038, 0x00000000, 
+    0x00000018, 0x00460069, 0x00720073, 0x00740020, 0x00530074, 0x00720069,
+    0x006e0067, 0x00000000, 0x0000001a, 0x00530065, 0x0063006f, 0x006e0064,
+    0x00200053, 0x00740072, 0x0069006e, 0x00670000, 0x00000001, 0x00000002,
+    0x01000002, 0x00000003, 0x02000003, 0x00000004, 0x03000004, 0x00000005,
+    0x04000005, 0x00000006, 0x05000006, 0x00000007, 0x06000007, 0x00000008,
+    0x07000008, 0x00000009, 0x08000009, 0x0000000a, 0x0900000a, 0x0000000b,
+    0x0000000a, 0x00000001, 0x00000002, 0x01000002, 0x00000003, 0x02000003,
+    0x00000004, 0x03000004, 0x00000005, 0x04000005, 0x00000006, 0x05000006,
+    0x00000007, 0x06000007, 0x00000008, 0x07000008, 0x00000009, 0x08000009,
+    0x0000000a, 0x0900000a, 0x0000000b, 0x00000000
+#else
+    0x0000beef, 0x0000001e, 0x00000018, 0x00000020, 0x00000038, 0x00000000,
+    0x00000018, 0x00690046, 0x00730072, 0x00200074, 0x00740053, 0x00690072,
+    0x0067006e, 0x00000000, 0x0000001a, 0x00650053, 0x006f0063, 0x0064006e,
+    0x00530020, 0x00720074, 0x006e0069, 0x00000067, 0x0001da00, 0x00000002,
+    0x0002da01, 0x00000003, 0x0003da02, 0x00000004, 0x0004da03, 0x00000005,
+    0x0005da04, 0x00000006, 0x0006da05, 0x00000007, 0x0007da06, 0x00000008,
+    0x0008da07, 0x00000009, 0x0009da08, 0x0000000a, 0x000ada09, 0x0000000b,
+    0x0000000a, 0x00018700, 0x00000002, 0x00028701, 0x00000003, 0x00038702,
+    0x00000004, 0x00048703, 0x00000005, 0x00058704, 0x00000006, 0x00068705,
+    0x00000007, 0x00078706, 0x00000008, 0x00088707, 0x00000009, 0x00098708,
+    0x0000000a, 0x000a8709, 0x0000000b, 0x00000000, 
+#endif
+  };
+  unsigned int expected_byte_count = sizeof(expected);
+  int fd = open(path, O_RDONLY, 0600);
+  void *buffer = malloc(expected_byte_count);
+  ASSERT_NE(fd, -1);
+  ASSERT_TRUE(buffer);
+  ASSERT_EQ(read(fd, buffer, expected_byte_count), expected_byte_count);
+  ASSERT_EQ(memcmp(buffer, expected, expected_byte_count), 0);
+  return true;
+}
+
+static bool RunTests() {
+  const char *path = "/tmp/minidump_file_writer_unittest.dmp";
+  ASSERT_TRUE(WriteFile(path));
+  ASSERT_TRUE(CompareFile(path));
+  unlink(path);
+  return true;
+}
+
+extern "C" int main(int argc, const char *argv[]) {
+  return RunTests() ? 0 : 1;
+}