def test_adding_programmer_without_js_nor_python(programmers):
programmers['fabio'] = ['PHP']
expected = []
actual = common_languages(programmers)
assert list(actual) == expected
def test_common_languages_adding_new_common_language(programmers):
programmers['bob'].append('C++')
programmers['sara'].append('C++')
expected = ['C++', 'JS', 'Python']
actual = common_languages(programmers)
assert sorted(list(actual)) == expected
def test_adding_programmer_without_js(programmers):
programmers['sue'] = ['Scala', 'Python']
expected = ['Python']
actual = common_languages(programmers)
assert list(actual) == expected
def test_common_languages(programmers):
expected = ['JS', 'Python']
actual = common_languages(programmers)
assert sorted(list(actual)) == expected
def test_common_languages_adding_new_common_language(programmers):
programmers["bob"].append("C++")
programmers["sara"].append("C++")
expected = ["C++", "JS", "Python"]
actual = common_languages(programmers)
assert sorted(list(actual)) == expected
def test_adding_programmer_without_js(programmers):
programmers["sue"] = ["Scala", "Python"]
expected = ["Python"]
actual = common_languages(programmers)
assert list(actual) == expected
def test_common_languages(programmers):
expected = ["JS", "Python"]
actual = common_languages(programmers)
assert sorted(list(actual)) == expected
