renaming

mytests/test_sugar.py

@@ -0,0 +1,58 @@
+import py
+
+from simpleparser import parse
+from objmodel import W_NormalObject
+from interpreter import Interpreter
+
+
+def sugar_test_helper(expr):
+    ast = parse("x = " + expr)
+    interpreter = Interpreter()
+    w_module = interpreter.make_module()
+    interpreter.eval(ast, w_module)
+
+    return w_module.getvalue("x").value
+
+
+def test_plus():
+    assert sugar_test_helper("1 + 1 + 1") == 3
+    assert sugar_test_helper("1 + 1") == 2
+
+
+def test_minus():
+    assert sugar_test_helper("2 - 1") == 1
+    assert sugar_test_helper("3 - 1 - 1") == 1
+
+
+def test_mult():
+    assert sugar_test_helper("2 * 5") == 10
+    assert sugar_test_helper("2 * 3 * 4") == 24
+
+
+def test_div():
+    assert sugar_test_helper("10 / 2") == 5
+    assert sugar_test_helper("24 / 3 / 2") == 4
+
+
+def test_mod():
+    assert sugar_test_helper("11 % 2") == 1
+
+
+def test_inc():
+    assert sugar_test_helper("1 ++") == 2
+    assert sugar_test_helper("1 ++ + 1") == 3  # Is this allowed?
+    assert sugar_test_helper("2 * 2 ++") == 6
+
+
+def test_mixed_precedence():
+    assert sugar_test_helper("2 * 3 / 2") == 3
+    assert sugar_test_helper("1 + 2 + 3 - 5") == 1
+    assert sugar_test_helper("10 - 2 * 5") == 0
+    assert sugar_test_helper("1 + 2 * 2 * 3 - 3 * 4") == 1
+
+
+def test_parenthesis():
+    assert sugar_test_helper("2 * (2 + 3)") == 10
+    assert sugar_test_helper("(2 + 5)") == 7
+    assert sugar_test_helper("(3 + 3) % 2") == 0
+    assert sugar_test_helper("(2 * 2) ++") == 5