python: add tests for the codable module

web/documentserver-example/python/src/codable/codable_tests.py

@@ -0,0 +1,154 @@
+#
+# (c) Copyright Ascensio System SIA 2023
+#
+# 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.
+#
+
+from __future__ import annotations
+from dataclasses import dataclass
+from textwrap import dedent
+from typing import Optional
+from unittest import TestCase
+from . import Codable, CodingKey
+
+@dataclass
+class Fruit(Codable):
+    class CodingKeys(CodingKey):
+        name = 'fruit_name'
+        weight = 'fruitWeight'
+        texture = 'fruit_texture'
+        vitamins = 'fruitVitamins'
+        organic = 'fruit_organic'
+
+    name: str
+    weight: int
+    texture: Optional[str]
+    vitamins: list[str]
+    organic: bool
+
+class CodablePlainTests(TestCase):
+    json = (
+        dedent(
+            '''
+            {
+              "fruit_name": "kiwi",
+              "fruitWeight": 100,
+              "fruit_texture": null,
+              "fruitVitamins": [
+                "Vitamin C",
+                "Vitamin K"
+              ],
+              "fruit_organic": true
+            }
+            '''
+        )
+            .strip()
+    )
+
+    def test_decodes(self):
+        fruit = Fruit.decode(self.json)
+        self.assertEqual(fruit.name, 'kiwi')
+        self.assertEqual(fruit.weight, 100)
+        self.assertIsNone(fruit.texture)
+        self.assertEqual(fruit.vitamins, ['Vitamin C', 'Vitamin K'])
+        self.assertTrue(fruit.organic)
+
+    def test_encodes(self):
+        fruit = Fruit(
+            name='kiwi',
+            weight=100,
+            texture=None,
+            vitamins=['Vitamin C', 'Vitamin K'],
+            organic=True
+        )
+        content = fruit.encode()
+        self.assertEqual(content, self.json)
+
+@dataclass
+class Smoothie(Codable):
+    class CodingKeys(CodingKey):
+        recipe = 'recipe'
+
+    recipe: Recipe
+
+@dataclass
+class Recipe(Codable):
+    class CodingKeys(CodingKey):
+        ingredients = 'ingredients'
+
+    ingredients: list[Ingredient]
+
+@dataclass
+class Ingredient(Codable):
+    class CodingKeys(CodingKey):
+        name = 'name'
+
+    name: str
+
+class CodableNestedTests(TestCase):
+    json = (
+        dedent(
+            '''
+            {
+              "recipe": {
+                "ingredients": [
+                  {
+                    "name": "kiwi"
+                  }
+                ]
+              }
+            }
+            '''
+        )
+            .strip()
+    )
+
+    def test_decodes(self):
+        smoothie = Smoothie.decode(self.json)
+        self.assertEqual(smoothie.recipe.ingredients[0].name, 'kiwi')
+
+    def test_encodes(self):
+        ingredient = Ingredient(name='kiwi')
+        recipe = Recipe(ingredients=[ingredient])
+        smoothie = Smoothie(recipe=recipe)
+        content = smoothie.encode()
+        self.assertEqual(content, self.json)
+
+@dataclass
+class Vegetable(Codable):
+    class CodingKeys(CodingKey):
+        name = 'name'
+
+    name: Optional[str]
+
+class CodableMissedTests(TestCase):
+    source_json = '{}'
+    distribute_json = (
+        dedent(
+            '''
+            {
+              "name": null
+            }
+            '''
+        )
+            .strip()
+    )
+
+    def test_decodes(self):
+        vegetable = Vegetable.decode(self.source_json)
+        self.assertIsNone(vegetable.name)
+
+    def test_encodes(self):
+        vegetable = Vegetable(name=None)
+        content = vegetable.encode()
+        self.assertEqual(content, self.distribute_json)