Updates file type selector for fileSystem API

chrome/browser/extensions/api/file_system/file_system_api_unittest.cc

+// Copyright (c) 2012 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 "base/file_path.h"
+#include "base/file_util.h"
+#include "chrome/browser/extensions/api/file_system/file_system_api.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using extensions::FileSystemChooseFileFunction;
+
+namespace {
+
+void CheckExtensions(std::vector<FilePath::StringType>& expected,
+    std::vector<FilePath::StringType>& actual) {
+  EXPECT_EQ(expected.size(), actual.size());
+  if (expected.size() != actual.size())
+    return;
+
+  for (size_t i = 0; i < expected.size(); ++i) {
+    EXPECT_EQ(expected[i], actual[i]);
+  }
+}
+
+}  // namespace
+
+class FileSystemApiUnitTest : public testing::Test {
+};
+
+TEST_F(FileSystemApiUnitTest,
+    FileSystemChooseFileFunctionFileTypeInfoTest) {
+  // AcceptsAllTypes is ignored when no other extensions are available.
+  SelectFileDialog::FileTypeInfo file_type_info;
+  bool acceptsAllTypes = false;
+  FileSystemChooseFileFunction::BuildFileTypeInfo(&file_type_info,
+      FilePath::StringType(), NULL, &acceptsAllTypes);
+  EXPECT_TRUE(file_type_info.include_all_files);
+  EXPECT_TRUE(file_type_info.extensions.empty());
+
+  // Test grouping of multiple types.
+  file_type_info = SelectFileDialog::FileTypeInfo();
+  std::vector<std::string> accepts;
+  accepts.push_back(".jso,application/x-chrome-extension");
+  acceptsAllTypes = false;
+  FileSystemChooseFileFunction::BuildFileTypeInfo(&file_type_info,
+      FilePath::StringType(), &accepts, &acceptsAllTypes);
+  EXPECT_FALSE(file_type_info.include_all_files);
+  ASSERT_EQ(file_type_info.extensions.size(), (size_t) 1);
+  EXPECT_TRUE(file_type_info.extension_description_overrides[0].empty()) <<
+      "No override must be specified for boring accept types";
+  // Note here (and below) that the expectedTypes are sorted, because we use a
+  // set internally to generate the output: thus, the output is sorted.
+  std::vector<FilePath::StringType> expectedTypes;
+  expectedTypes.push_back(FilePath::StringType("crx"));
+  expectedTypes.push_back(FilePath::StringType("jso"));
+  CheckExtensions(expectedTypes, file_type_info.extensions[0]);
+
+  // Test that not satisfying the extension will force all types.
+  file_type_info = SelectFileDialog::FileTypeInfo();
+  accepts.clear();
+  accepts.push_back(".unrelated");
+  acceptsAllTypes = false;
+  FileSystemChooseFileFunction::BuildFileTypeInfo(&file_type_info,
+      FilePath::StringType(".jso"), &accepts, &acceptsAllTypes);
+  EXPECT_TRUE(file_type_info.include_all_files);
+
+  // Test multiple list entries, all containing their own types.
+  file_type_info = SelectFileDialog::FileTypeInfo();
+  accepts.clear();
+  accepts.push_back(".jso,.js");
+  accepts.push_back(".cpp,.cc");
+  acceptsAllTypes = false;
+  FileSystemChooseFileFunction::BuildFileTypeInfo(&file_type_info,
+      FilePath::StringType(), &accepts, &acceptsAllTypes);
+  ASSERT_EQ(file_type_info.extensions.size(), accepts.size());
+
+  expectedTypes.clear();
+  expectedTypes.push_back(FilePath::StringType("js"));
+  expectedTypes.push_back(FilePath::StringType("jso"));
+  CheckExtensions(expectedTypes, file_type_info.extensions[0]);
+
+  expectedTypes.clear();
+  expectedTypes.push_back(FilePath::StringType("cc"));
+  expectedTypes.push_back(FilePath::StringType("cpp"));
+  CheckExtensions(expectedTypes, file_type_info.extensions[1]);
+
+  // Test accept type that causes description override.
+  file_type_info = SelectFileDialog::FileTypeInfo();
+  accepts.clear();
+  accepts.push_back("image/*");
+  acceptsAllTypes = false;
+  FileSystemChooseFileFunction::BuildFileTypeInfo(&file_type_info,
+      FilePath::StringType(), &accepts, &acceptsAllTypes);
+  ASSERT_EQ(file_type_info.extension_description_overrides.size(), (size_t) 1);
+  EXPECT_FALSE(file_type_info.extension_description_overrides[0].empty()) <<
+      "Accept type \"image/*\" must generate description override";
+
+  // Test multiple accept types that cause description override causes us to
+  // still present the default.
+  file_type_info = SelectFileDialog::FileTypeInfo();
+  accepts.clear();
+  accepts.push_back("image/*,audio/*,video/*");
+  acceptsAllTypes = false;
+  FileSystemChooseFileFunction::BuildFileTypeInfo(&file_type_info,
+      FilePath::StringType(), &accepts, &acceptsAllTypes);
+  ASSERT_EQ(file_type_info.extension_description_overrides.size(), (size_t) 1);
+  EXPECT_TRUE(file_type_info.extension_description_overrides[0].empty());
+}
+
+TEST_F(FileSystemApiUnitTest, FileSystemChooseFileFunctionSuggestionTest) {
+  std::string opt_name;
+  FilePath suggested_name;
+  FilePath::StringType suggested_extension;
+
+  opt_name = std::string("normal_path.txt");
+  FileSystemChooseFileFunction::BuildSuggestion(&opt_name, &suggested_name,
+      &suggested_extension);
+  EXPECT_FALSE(suggested_name.IsAbsolute());
+  EXPECT_EQ(suggested_name.MaybeAsASCII(), "normal_path.txt");
+  EXPECT_EQ(suggested_extension, "txt");
+
+  // We should provide just the basename, i.e., "path".
+  opt_name = std::string("/a/bad/path");
+  FileSystemChooseFileFunction::BuildSuggestion(&opt_name, &suggested_name,
+      &suggested_extension);
+  EXPECT_FALSE(suggested_name.IsAbsolute());
+  EXPECT_EQ(suggested_name.MaybeAsASCII(), "path");
+  EXPECT_TRUE(suggested_extension.empty());
+
+  // Filter out absolute paths with no basename.
+  opt_name = std::string("/");
+  FileSystemChooseFileFunction::BuildSuggestion(&opt_name, &suggested_name,
+      &suggested_extension);
+  EXPECT_FALSE(suggested_name.IsAbsolute());
+  EXPECT_TRUE(suggested_name.MaybeAsASCII().empty());
+  EXPECT_TRUE(suggested_extension.empty());
+}