Python: pangram

python/pangram/pangram_test.py

@@ -0,0 +1,54 @@
+import unittest
+
+from pangram import is_pangram
+
+# Tests adapted from `problem-specifications//canonical-data.json`
+
+
+class PangramTest(unittest.TestCase):
+    def test_empty_sentence(self):
+        self.assertIs(is_pangram(""), False)
+
+    def test_perfect_lower_case(self):
+        self.assertIs(is_pangram("abcdefghijklmnopqrstuvwxyz"), True)
+
+    def test_only_lower_case(self):
+        self.assertIs(is_pangram("the quick brown fox jumps over the lazy dog"), True)
+
+    def test_missing_the_letter_x(self):
+        self.assertIs(
+            is_pangram("a quick movement of the enemy will jeopardize five gunboats"),
+            False,
+        )
+
+    def test_missing_the_letter_h(self):
+        self.assertIs(is_pangram("five boxing wizards jump quickly at it"), False)
+
+    def test_with_underscores(self):
+        self.assertIs(is_pangram("the_quick_brown_fox_jumps_over_the_lazy_dog"), True)
+
+    def test_with_numbers(self):
+        self.assertIs(
+            is_pangram("the 1 quick brown fox jumps over the 2 lazy dogs"), True
+        )
+
+    def test_missing_letters_replaced_by_numbers(self):
+        self.assertIs(is_pangram("7h3 qu1ck brown fox jumps ov3r 7h3 lazy dog"), False)
+
+    def test_mixed_case_and_punctuation(self):
+        self.assertIs(is_pangram('"Five quacking Zephyrs jolt my wax bed."'), True)
+
+    def test_case_insensitive(self):
+        self.assertIs(is_pangram("the quick brown fox jumps over with lazy FX"), False)
+
+    # Additional tests for this track
+
+    def test_sentence_without_lower_bound(self):
+        self.assertIs(is_pangram("bcdefghijklmnopqrstuvwxyz"), False)
+
+    def test_sentence_without_upper_bound(self):
+        self.assertIs(is_pangram("abcdefghijklmnopqrstuvwxy"), False)
+
+
+if __name__ == "__main__":
+    unittest.main()