About Control Statements in Python
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Transcript of About Control Statements in Python
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8/19/2019 About Control Statements in Python
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#!/usr/bin/env python# -*- coding: utf-8 -*-
from runner.koan import *
class AboutControlStatements(Koan):
def test_if_then_else_statements(self): if True: result = 'true value' else: result = 'false value' self.assertEqual(__, result)
def test_if_then_statements(self): result = 'default value' if True: result = 'true value' self.assertEqual(__, result)
def test_if_then_elif_else_statements(self): if False: result = 'first value'
elif True:result = 'true value' else: result = 'default value' self.assertEqual(__, result)
def test_while_statement(self): i = 1 result = 1 while i 10: break result = result * i i += 1 self.assertEqual(__, result)
def test_continue_statement(self): i = 0 result = []
while i < 10: i += 1 if (i % 2) == 0: continue result.append(i) self.assertEqual(__, result)
def test_for_statement(self): phrase = ["fish", "and", "chips"] result = [] for item in phrase:
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result.append(item.upper()) self.assertEqual([__, __, __], result)
def test_for_statement_with_tuples(self): round_table = [ ("Lancelot", "Blue"), ("Galahad", "I don't know!"), ("Robin", "Blue! I mean Green!"), ("Arthur", "Is that an African Swallow or Amazonian Swallow?") ] result = [] for knight, answer in round_table: result.append("Contestant: '" + knight + \ "' Answer: '" + answer + "'")
text = __
self.assertMatch(text, result[2])
self.assertNoMatch(text, result[0]) self.assertNoMatch(text, result[1]) self.assertNoMatch(text, result[3])