Revert "Implement a JavaScript API for document scanning"

chrome/browser/extensions/api/document_scan/document_scan_api_unittest.cc

-// Copyright 2014 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/browser/extensions/api/document_scan/document_scan_api.h"
-
-#include <string>
-#include <vector>
-
-#include "chrome/browser/extensions/api/document_scan/mock_document_scan_interface.h"
-#include "chrome/browser/extensions/extension_api_unittest.h"
-#include "chrome/browser/extensions/extension_function_test_utils.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-using testing::_;
-
-namespace extensions {
-
-namespace api {
-
-// Tests of networking_private_crypto support for Networking Private API.
-class DocumentScanScanFunctionTest : public ExtensionApiUnittest {
- public:
-  DocumentScanScanFunctionTest()
-      : function_(new DocumentScanScanFunction()),
-        document_scan_interface_(new MockDocumentScanInterface()) {}
-  virtual ~DocumentScanScanFunctionTest() {}
-
-  void SetUp() {
-    ExtensionApiUnittest::SetUp();
-    // Passes ownership.
-    function_->document_scan_interface_.reset(document_scan_interface_);
-  }
-
- protected:
-  std::string RunFunctionAndReturnError(const std::string& args) {
-    function_->set_extension(extension());
-    std::string error =
-       extension_function_test_utils::RunFunctionAndReturnError(
-           function_, args, browser(),
-           extension_function_test_utils::NONE);
-    return error;
-  }
-
-  DocumentScanScanFunction* function_;
-  MockDocumentScanInterface* document_scan_interface_;  // Owned by function_.
-};
-
-ACTION_P2(InvokeListScannersCallback, scanner_list, error) {
-  ::std::tr1::get<0>(args).Run(scanner_list, error);
-}
-
-ACTION_P3(InvokeScanCallback, data, mime_type, error) {
-  ::std::tr1::get<3>(args).Run(data, mime_type, error);
-}
-
-TEST_F(DocumentScanScanFunctionTest, GestureRequired) {
-  EXPECT_EQ("User gesture required to perform scan",
-            RunFunctionAndReturnError("[{}]"));
-}
-
-TEST_F(DocumentScanScanFunctionTest, NoScanners) {
-  function_->set_user_gesture(true);
-  EXPECT_CALL(*document_scan_interface_, ListScanners(_))
-      .WillOnce(InvokeListScannersCallback(
-                    std::vector<DocumentScanInterface::ScannerDescription>(),
-                    ""));
-  EXPECT_EQ("Scanner not available",
-            RunFunctionAndReturnError("[{}]"));
-}
-
-TEST_F(DocumentScanScanFunctionTest, NoMatchingScanners) {
-  function_->set_user_gesture(true);
-  std::vector<DocumentScanInterface::ScannerDescription> scanner_list;
-  DocumentScanInterface::ScannerDescription scanner;
-  scanner.image_mime_type = "img/fresco";
-  scanner_list.push_back(scanner);
-  EXPECT_CALL(*document_scan_interface_, ListScanners(_))
-      .WillOnce(InvokeListScannersCallback(scanner_list, ""));
-  EXPECT_EQ(
-      "Scanner not available",
-      RunFunctionAndReturnError("[{\"mimeTypes\": [\"img/silverpoint\"]}]"));
-}
-
-TEST_F(DocumentScanScanFunctionTest, ScanFailure) {
-  function_->set_user_gesture(true);
-  std::vector<DocumentScanInterface::ScannerDescription> scanner_list;
-  DocumentScanInterface::ScannerDescription scanner;
-  const char kMimeType[] = "img/tempera";
-  const char kScannerName[] = "Michelangelo";
-  scanner.name = kScannerName;
-  scanner.image_mime_type = kMimeType;
-  scanner_list.push_back(scanner);
-  EXPECT_CALL(*document_scan_interface_, ListScanners(_))
-      .WillOnce(InvokeListScannersCallback(scanner_list, ""));
-  const char kScanError[] = "Someone ate all the eggs";
-  EXPECT_CALL(*document_scan_interface_, Scan(kScannerName, _, _, _))
-      .WillOnce(InvokeScanCallback("", "", kScanError));
-  EXPECT_EQ(kScanError,
-            RunFunctionAndReturnError("[{\"mimeTypes\": [\"img/tempera\"]}]"));
-}
-
-TEST_F(DocumentScanScanFunctionTest, Success) {
-  std::vector<DocumentScanInterface::ScannerDescription> scanner_list;
-  scanner_list.push_back(DocumentScanInterface::ScannerDescription());
-  EXPECT_CALL(*document_scan_interface_, ListScanners(_))
-      .WillOnce(InvokeListScannersCallback(scanner_list, ""));
-  const char kScanData[] = "A beautiful picture";
-  const char kMimeType[] = "img/encaustic";
-  EXPECT_CALL(*document_scan_interface_, Scan(_, _, _, _))
-      .WillOnce(InvokeScanCallback(kScanData, kMimeType, ""));
-  function_->set_user_gesture(true);
-  scoped_ptr<base::DictionaryValue> result(RunFunctionAndReturnDictionary(
-      function_, "[{}]"));
-  ASSERT_NE(nullptr, result.get());
-  document_scan::ScanResults scan_results;
-  EXPECT_TRUE(document_scan::ScanResults::Populate(*result, &scan_results));
-  EXPECT_THAT(scan_results.data_urls, testing::ElementsAre(kScanData));
-  EXPECT_EQ(kMimeType, scan_results.mime_type);
-}
-
-}  // namespace api
-
-}  // namespace extensions