Issue 4380 - Add Mock Crowdin API and Sync Test

tests/crowdin_mock_api.py

+from flask import Flask, send_from_directory, jsonify, request
+
+app = Flask(__name__)
+app.request_log = []
+
+
+@app.before_request
+def log_request_info():
+    log = (request.url, str(request.get_data()))
+    app.request_log.append(log)
+
+
+@app.route('/api/project/test/info', methods=['GET'])
+def info():
+    return jsonify(
+        {
+            'languages': [
+                {
+                    'name': 'German',
+                    'code': 'de',
+                    'can_translate': 1,
+                    'can_approve': 1,
+
+                },
+                {
+                    'name': 'English',
+                    'code': 'en',
+                    'can_translate': 1,
+                    'can_approve': 1,
+
+                },
+
+            ],
+            'files': [
+                {
+                    'node_type': 'directory',
+                    'name': 'en',
+                    'files': [
+                        {
+                            'node_type': 'file',
+                            'name': 'translate.json',
+                            'created': '2016-09-26 08:30:07',
+                            'last_updated': '2016-09-26 08:30:08',
+                            'last_accessed': None,
+                            'last_revision': '1'
+                        },
+                    ]
+                },
+                {
+                    'node_type': 'directory',
+                    'name': 'de',
+                    'files': [
+                        {
+                            'node_type': 'file',
+                            'name': 'translate.json',
+                            'created': '2016-09-26 08:30:07',
+                            'last_updated': '2016-09-26 08:30:08',
+                            'last_accessed': None,
+                            'last_revision': '1'
+                        }
+                    ]
+                }
+            ]
+        }
+    )
+
+
+@app.route('/api/project/test/supported-languages', methods=['GET'])
+def supported_langs():
+    return jsonify(
+        [
+            {
+                'name': 'German',
+                'crowdin_code': 'de',
+                'editor_code': 'de',
+                'iso_639_1': 'de',
+                'iso_639_3': 'deu',
+                'locale': 'de-DE'
+            },
+            {
+                'name': 'English',
+                'crowdin_code': 'en',
+                'editor_code': 'en',
+                'iso_639_1': 'en',
+                'iso_639_3': 'eng',
+                'locale': 'en-US'
+            },
+        ]
+    )
+
+
+@app.route('/api/project/test/add-file', methods=['POST'])
+def add_file():
+    app.string = request.get_data()
+    return jsonify()
+
+
+@app.route('/api/project/test/upload-translation', methods=['POST'])
+def upload_translation():
+    return jsonify()
+
+
+@app.route('/api/project/test/delete-directory', methods=['POST'])
+def delete_directory():
+    return jsonify()
+
+
+@app.route('/api/project/test/delete-file', methods=['POST'])
+def delete_file():
+    return jsonify()
+
+
+@app.route('/api/project/test/export', methods=['GET'])
+def export():
+    return jsonify({'success': {'status': 'skipped'}})
+
+
+@app.route('/api/project/test/download/all.zip', methods=['GET'])
+def get_zip():
+    return send_from_directory('', 'all.zip')