[lint] Add lint and tests.

tests/test_magic_dictionary.py

@@ -0,0 +1,83 @@
+# -*- encoding: utf-8 -*-
+
+from simplex.magic_dictionary import magic_dictionary
+
+
+def test_basic():
+    """ Tests that a non-customized magic_dictionary acts
+    as a standard python dictionary. """
+
+    d = magic_dictionary()
+    assert len(d) == 0
+
+    d["x"] = 1
+    d["y"] = "2"
+
+    assert len(d) == 2
+    assert d["x"] == 1
+    assert d["y"] == "2"
+
+    # Test copy:
+    d2 = magic_dictionary(d)
+    assert len(d2) == 2
+    assert d2["x"] == 1
+    assert d2["y"] == "2"
+
+    # Test construction:
+    d2 = magic_dictionary({"x": 1, "y": "2"})
+    assert len(d2) == 2
+    assert d2["x"] == 1
+    assert d2["y"] == "2"
+
+    # Test construction:
+    d2 = magic_dictionary(x=1, y="2")
+    assert len(d2) == 2
+    assert d2["x"] == 1
+    assert d2["y"] == "2"
+
+    # Test construction:
+    d2 = magic_dictionary((("x", 1), ("y", "2")))
+    assert len(d2) == 2
+    assert d2["x"] == 1
+    assert d2["y"] == "2"
+
+
+def test_value_converter():
+    """ Tests that conversion is correctly done. """
+
+    # Convert a value to its string representation:
+    def converter(x):
+        return str(x)
+
+    d = magic_dictionary(value_converter=converter)
+    assert len(d) == 0
+
+    d["x"] = 2
+    d["y"] = 3
+    assert len(d) == 2
+    assert d["x"] == "2"
+    assert d["y"] == "3"
+
+    # Construction:
+    d = magic_dictionary(d, value_converter=converter)
+    assert len(d) == 2
+    assert d["x"] == "2"
+    assert d["y"] == "3"
+
+    # Construction:
+    d = magic_dictionary({"x": 2, "y": 3}, value_converter=converter)
+    assert len(d) == 2
+    assert d["x"] == "2"
+    assert d["y"] == "3"
+
+    # Construction:
+    d = magic_dictionary(x=2, y=3, value_converter=converter)
+    assert len(d) == 2
+    assert d["x"] == "2"
+    assert d["y"] == "3"
+
+    # Construction:
+    d = magic_dictionary([("x", 2), ("y", 3)], value_converter=converter)
+    assert len(d) == 2
+    assert d["x"] == "2"
+    assert d["y"] == "3"