Added Week04

cp/tests/tests_week04.py

+from unitgrade import UTestCase, Report
+import unittest
+from unittest.mock import patch
+import cp
+import io
+
+def string_fixer(s):
+    return s.strip().replace('  ', ' ')
+
+class Week04Palindrome(UTestCase):
+    def test_is_palindrome(self):
+        from cp.ex04.palindrome import is_palindrome
+        self.assertTrue(is_palindrome('madam'))
+        self.assertTrue(is_palindrome('kk'))
+        self.assertTrue(is_palindrome('m'))
+        self.assertIs(is_palindrome('gentleman'), False)
+        self.assertIs(is_palindrome('ma'), False)
+
+
+class Week04Bug(UTestCase):
+    def test_nice_sign(self):
+        from cp.ex04.bug import nice_sign
+        with unittest.mock.patch('sys.stdout', new=io.StringIO()) as mock_stdout:
+            nice_sign('hello')
+            out = mock_stdout.getvalue()
+
+            self.assertEqual(len(out.splitlines()), 3, msg="You did not print out 3 seperate lines")
+            l1 = out.splitlines()[0]
+            l2 = out.splitlines()[1]
+            l3 = out.splitlines()[2]
+
+            self.assertEqual(string_fixer(l1), "---------")
+            self.assertEqual(string_fixer(l2), "| hello |")
+            self.assertEqual(string_fixer(l3), "---------")
+
+    def test_last_bug(self):
+        from cp.ex04.bug import last_bug
+        with unittest.mock.patch('sys.stdout', new=io.StringIO()) as mock_stdout:
+            last_bug()
+            out = mock_stdout.getvalue()
+
+            self.assertEqual(len( out.splitlines()), 3, msg="You did not print out 3 seperate lines")
+            l1 = out.splitlines()[0]
+            l2 = out.splitlines()[1]
+            l3 = out.splitlines()[2]
+
+            self.assertEqual(l1, "------------------------------")
+            self.assertEqual(l2, "| I have written my last bug |")
+            self.assertEqual(l3, "------------------------------")
+
+
+class Week04Math(UTestCase):
+    def test_square_root(self):
+        from cp.ex04.mathematics import square_root
+        self.assertAlmostEqual(square_root(9), 3, places=3)
+        self.assertAlmostEqual(square_root(25), 5, places=3)
+
+    def test_pi(self):
+        from cp.ex04.mathematics import ramanujan
+        self.assertAlmostEqual(ramanujan(), 3.1416, places=3)
+
+
+class Week04Parenthesis(UTestCase):
+    def test_matching(self):
+        from cp.ex04.parenthesis import matching
+        self.assertTrue(matching('3x(y+x)'))
+        self.assertTrue(matching('3x'))
+        self.assertTrue(matching('3x(y+(x-1))'))
+        self.assertTrue(matching('3(x-8)^2(y+(x-1))'))
+        self.assertIs(matching('3x(y+x))'), False)
+        self.assertIs(matching('(3x(y+x)'), False)
+
+    def test_innermost(self):
+        from cp.ex04.parenthesis import find_innermost_part
+        self.assertEqual(find_innermost_part('(3+x)'), '3+x')
+        self.assertEqual(find_innermost_part('3+x'), '3+x')
+        self.assertEqual(find_innermost_part('3x((y+2)y+x)'), 'y+2')
+        self.assertEqual(find_innermost_part('3x((y+(1 - q^2)y+x)'), '1 - q^2')
+
+
+    def test_find_index_of_equality(self):
+        from cp.ex04.parenthesis import find_index_of_equality
+        self.assertEqual(find_index_of_equality("()"), 1)
+        self.assertEqual(find_index_of_equality("(()())"), 3)
+        self.assertEqual(find_index_of_equality("())"), 2)
+        self.assertEqual(find_index_of_equality("())((((("), 2)
+        # self.assertEqual(find_index_of_equality(""), 0)
+        self.assertEqual(find_index_of_equality(")(()())("), 4)
+
+
+class Week04Dialogue(UTestCase):
+    def test_print_the_dialogue(self):
+        from cp.ex04.parenthesis import print_the_dialogue
+        with unittest.mock.patch('sys.stdout', new=io.StringIO()) as mock_stdout:
+            print_the_dialogue("He said: ''How are you doing?''")
+            out = mock_stdout.getvalue()
+            self.assertEqual(out.strip(), "How are you doing?")
+
+    def test_print_the_dialogue_twolines(self):
+        from cp.ex04.parenthesis import print_the_dialogue
+        with unittest.mock.patch('sys.stdout', new=io.StringIO()) as mock_stdout:
+            print_the_dialogue("He: ''How are you doing?'' She: ''Still stuck on my 02002 programming problems''.")
+            out = mock_stdout.getvalue()
+            self.assertEqual(out.strip(), "How are you doing?\nStill stuck on my 02002 programming problems")
+
+
+class Week04Prefix(UTestCase):
+    def test_common_prefix(self):
+        from cp.ex04.prefix import common_prefix
+        self.assertEqual( common_prefix("cat", "cawabunga"), "ca")
+        self.assertEqual(common_prefix("caterpillar", "catapult"), "cat")
+        self.assertEqual(common_prefix("cat", "dog"), "")
+
+    def test_common_prefix3(self):
+        from cp.ex04.prefix import common_prefix3
+        self.assertEqual(common_prefix3("cat", "cawabunga", "catapult"), "ca")
+        self.assertEqual(common_prefix3("cawabunga", "cow", "catapult"), "c")
+        self.assertEqual(common_prefix3("selenium", "sealant", "sensei"), "se")
+        self.assertEqual(common_prefix3("selenium", "apple", "sensei"), "")
+
+
+class Week04Tests(Report):
+    title = "Tests for week 04"
+    # version = 1.0
+    # url = "https://gitlab.compute.dtu.dk/cp/02002students/-/blob/master/cp/tests"
+    pack_imports = [cp]
+    questions = [
+                (Week04Math, 10),
+                (Week04Palindrome, 10),
+                (Week04Bug, 10),
+                (Week04Parenthesis, 10),
+                (Week04Dialogue, 10),
+                (Week04Prefix, 10),
+                 ]
+
+if __name__ == '__main__':
+    from unitgrade import evaluate_report_student
+    evaluate_report_student(Week04Tests())