Preparing git repo for final project

problems/pset5/test_bank/bank.py

@@ -0,0 +1,17 @@
+def main():
+    greeting = input("Greeting:\t\t")
+    print(value(f"${greeting}"))
+
+
+def value(greeting: str) -> str:
+    greeting = greeting.lower().strip()
+    if greeting.startswith("hello"):
+        return 0
+    elif greeting.startswith("h"):
+        return 20
+    else:
+        return 100
+
+
+if __name__ == "__main__":
+    main()

problems/pset5/test_bank/test_bank.py

@@ -0,0 +1,77 @@
+from bank import value
+
+
+def main():
+    test_lower()
+    test_upper()
+    test_title_case()
+    test_mixed_case()
+    test_zero()
+    test_twenty()
+    test_empty()
+    test_hundred()
+    test_containing_hello()
+
+
+def test_lower():
+    assert value('hello') == 0
+    assert value('hey') == 20
+    assert value('banana') == 100
+
+
+def test_upper():
+    assert value('HELLO') == 0
+    assert value('HEY') == 20
+    assert value('BANANA') == 100
+
+
+def test_title_case():
+    assert value('Hello') == 0
+    assert value('Hey') == 20
+    assert value('Banana') == 100
+
+
+def test_mixed_case():
+    assert value('Hello') == 0
+    assert value('Hey') == 20
+    assert value('Banana') == 100
+
+
+def test_zero():
+    assert value('Hello') == 0
+    assert value('hello') == 0
+    assert value('HELLO') == 0
+    assert value('HeLlO') == 0
+    assert value('hElLo') == 0
+
+
+def test_twenty():
+    assert value('Hey') == 20
+    assert value('hey') == 20
+    assert value('HEY') == 20
+    assert value('HeY') == 20
+    assert value('hEy') == 20
+    assert value('h') == 20
+    assert value('h20') == 20
+
+
+def test_empty():
+    assert value('') == 100
+
+
+def test_hundred():
+    assert value('Banana') == 100
+    assert value('banana') == 100
+    assert value('BANANA') == 100
+    assert value('12345678') == 100
+    assert value('nothello') == 100
+
+def test_containing_hello():
+    assert value('aHello') == 100
+    assert value('ahello') == 100
+    assert value('aHELLO') == 100
+    assert value('aHeLlO') == 100
+    assert value('ahElLo') == 100
+
+if __name__ == "__main__":
+    main()

problems/pset5/test_fuel/fuel.py

@@ -0,0 +1,35 @@
+def main():
+    while True:
+        fuel = input("Fraction:\t\t")
+        try:
+            result = convert(fuel)
+            break
+        except (ValueError, ZeroDivisionError):
+            continue
+    print(gauge(result))
+
+
+
+def convert(fraction: str) -> int:
+    try:
+        x, y = map(int, fraction.split('/'))
+    except (ValueError, TypeError):
+        raise ValueError
+    if x > y:
+        raise ValueError
+    if y == 0:
+        raise ZeroDivisionError
+    return int(round(x / y*100, 0))
+
+
+def gauge(percentage):
+    if percentage <= 1:
+        return "E"
+    elif percentage >= 99:
+        return "F"
+    else:
+        return f"{percentage}%"
+
+
+if __name__ == "__main__":
+    main()

problems/pset5/test_fuel/test_fuel.py

@@ -0,0 +1,41 @@
+from fuel import convert, gauge
+
+def main():
+    test_convert()
+    test_gauge()
+    test_value_error()
+    test_zero_division_error()
+
+def test_convert():
+    assert convert("0/4") == 0
+    assert convert("1/4") == 25
+    assert convert("4/4") == 100
+
+def test_value_error():
+    try:
+        convert("5/4")
+    except ValueError:
+        pass
+    else:
+        raise Exception("ValueError not raised with y>x")
+
+
+def test_zero_division_error():
+    try:
+        convert("5/0")
+    except ZeroDivisionError:
+        pass
+    else:
+        raise Exception("ZeroDivisionError not raised with y = 0")
+
+
+def test_gauge():
+    assert gauge(100) == 'F'
+    assert gauge(99) == 'F'
+    assert gauge(0) == 'E'
+    assert gauge(1) == 'E'
+    assert gauge(27) == '27%'
+
+
+if __name__ == '__main__':
+    main()

problems/pset5/test_plates/plates.py

@@ -0,0 +1,39 @@
+import re
+
+
+def main():
+    plate = input("Plate: ")
+    if is_valid(plate):
+        print("Valid")
+    else:
+        print("Invalid")
+
+
+def is_valid(s):
+    if len(s) < 2 or len(s) > 6:
+        return False
+    return re.match(r"^[A-Z]{2,}([1-9]\d+)?(?![A-Z])$", s) is not None
+
+
+def loopy_is_valid(s):
+    length = 0
+    has_digits = False
+    for n, c in enumerate(s):
+        if n > 6:
+            return False
+        if not c.isalnum():
+            return False
+        if n < 2 and not c.isalpha():
+            return False
+        if c.isdigit():
+            if not has_digits and c == '0':
+                return False
+            has_digits = True
+        elif has_digits:
+            return False
+        length += 1
+    return length >= 2
+
+
+if __name__ == "__main__":
+    main()

problems/pset5/test_plates/test_plates.py

@@ -0,0 +1,39 @@
+from plates import is_valid
+
+
+def main():
+    test_incipit()
+    test_length()
+    test_digits()
+    test_forbidden_characters()
+
+
+def test_incipit():
+    assert is_valid('11AA11') == False
+    assert is_valid('11AA') == False
+    assert is_valid('1AA2') == False
+    assert is_valid('2AAP') == False
+    assert is_valid('A1111') == False
+    assert is_valid('AA1111') == True
+
+
+def test_length():
+    assert is_valid('') == False
+    assert is_valid('A') == False
+    assert is_valid('AAAAAA111111') == False
+
+
+def test_digits():
+    assert is_valid('AA111A') == False
+    assert is_valid('AA0111') == False
+
+
+def test_forbidden_characters():
+    assert is_valid('AA1.1') == False
+    assert is_valid('AA1,1') == False
+    assert is_valid('AA1 1') == False
+    assert is_valid('AA11!') == False
+
+
+if __name__ == "__main__":
+    main()

problems/pset5/test_twttr/test_twttr.py

@@ -0,0 +1,33 @@
+from twttr import shorten
+
+
+def main():
+    test_uppercase()
+    test_lowercase()
+    test_null()
+    test_digits()
+    test_punctuation()
+
+
+def test_uppercase():
+    assert shorten('TWITTER') == 'TWTTR'
+
+
+def test_lowercase():
+    assert shorten('twitter') == 'twttr'
+
+
+def test_null():
+    assert shorten('') == ''
+
+
+def test_digits():
+    assert shorten('abc123') == 'bc123'
+
+
+def test_punctuation():
+    assert shorten('abc,') == 'bc,'
+
+
+if __name__ == "__main__":
+    main()

problems/pset5/test_twttr/twttr.py

@@ -0,0 +1,16 @@
+def main():
+    tweet = input("Input: \t\t")
+    result = shorten(tweet)
+    print(f"Output: {result}")
+
+
+def shorten(word: str) -> str:
+    result = ''
+    for c in word:
+        if c.lower() not in ('a', 'e', 'i', 'o', 'u'):
+            result += c
+    return result
+
+
+if __name__ == "__main__":
+    main()