add tests for FileJSON with serialization

1 files changed, 112 insertions, 0 deletions

diff --git a/tests/test_FileJSON.py b/tests/test_FileJSON.py
new file mode 100644
index 0000000..5bda353
--- /dev/null
+++ b/tests/test_FileJSON.py
@@ -0,0 +1,112 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+    test_FileJSON.py
+    ~~~~~~~~~~~~~~~~
+    
+    FileJSON test suite
+    
+    :copyright: (c) 2013 by Jauhien Piatlicki
+    :license: GPL-2, see LICENSE for more details.
+"""
+
+import json
+import os
+import unittest
+
+from g_sorcery.fileutils import FileJSON
+from g_sorcery.exceptions import FileJSONError
+
+from tests.base import BaseTest
+
+
+class NonSerializableClass(object):
+    pass
+
+
+class SerializableClass(object):
+
+    __slots__ = ("field1", "field2")
+
+    def __init__(self, field1, field2):
+        self.field1 = field1
+        self.field2 = field2
+
+    def __eq__(self, other):
+        return self.field1 == other.field1 \
+          and self.field2 == other.field2
+
+    def serialize(self):
+        return {"field1": self.field1, "field2": self.field2}
+
+
+class DeserializableClass(SerializableClass):
+
+    @classmethod
+    def deserialize(cls, value):
+        return DeserializableClass(value["field1"], value["field2"])
+
+
+class TestFileJSON(BaseTest):
+    def setUp(self):
+        super(TestFileJSON, self).setUp()
+        self.directory = os.path.join(self.tempdir.name, 'tst')
+        self.name = 'tst.json'
+        self.path = os.path.join(self.directory, self.name)
+    
+    def test_read_nonexistent(self):
+        fj = FileJSON(self.directory, self.name, [])
+        content = fj.read()
+        self.assertEqual(content, {})
+        self.assertTrue(os.path.isfile(self.path))
+
+    def test_read_nonexistent_mandatory_key(self):
+        fj = FileJSON(self.directory, self.name, ["mandatory1", "mandatory2"])
+        content = fj.read()
+        self.assertEqual(content, {"mandatory1":"", "mandatory2":""})
+        self.assertTrue(os.path.isfile(self.path))
+
+    def test_read_luck_of_mandatory_key(self):
+        fj = FileJSON(self.directory, self.name, ["mandatory"])
+        os.makedirs(self.directory)
+        with open(self.path, 'w') as f:
+            json.dump({"test":"test"}, f)
+        self.assertRaises(FileJSONError, fj.read)
+
+    def test_write_luck_of_mandatory_key(self):
+        fj = FileJSON(self.directory, self.name, ["mandatory"])
+        self.assertRaises(FileJSONError, fj.write, {"test":"test"})
+
+    def test_write_read(self):
+        fj = FileJSON(self.directory, self.name, ["mandatory"])
+        content = {"mandatory":"1", "test":"2"}
+        fj.write(content)
+        content_r = fj.read()
+        self.assertEqual(content, content_r)
+
+    def test_serializable(self):
+        fj = FileJSON(self.directory, self.name, [])
+        content = SerializableClass("1", "2")
+        fj.write(content)
+        content_r = fj.read()
+        self.assertEqual(content_r, {"field1":"1", "field2":"2"})
+        self.assertRaises(TypeError, fj.write, NonSerializableClass())
+
+    def test_deserializable(self):
+        fj = FileJSON(self.directory, self.name, [])
+        content = DeserializableClass("1", "2")
+        fj.write(content)
+        content_r = fj.read()
+        self.assertEqual(content, content_r)
+        
+def suite():
+    suite = unittest.TestSuite()
+    suite.addTest(TestFileJSON('test_read_nonexistent'))
+    suite.addTest(TestFileJSON('test_read_nonexistent_mandatory_key'))
+    suite.addTest(TestFileJSON('test_read_luck_of_mandatory_key'))
+    suite.addTest(TestFileJSON('test_write_luck_of_mandatory_key'))
+    suite.addTest(TestFileJSON('test_write_read'))
+    suite.addTest(TestFileJSON('test_serializable'))
+    suite.addTest(TestFileJSON('test_deserializable'))
+    return suite