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52 lines
1.3 KiB
52 lines
1.3 KiB
require File.expand_path(File.dirname(__FILE__) + '/edgecase')
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class AboutArrayAssignment < EdgeCase::Koan
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def test_non_parallel_assignment
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names = ["John", "Smith"]
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assert_equal __, names
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end
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def test_parallel_assignments
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first_name, last_name = ["John", "Smith"]
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assert_equal __, first_name
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assert_equal __, last_name
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end
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def test_parallel_assignments_with_extra_values
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first_name, last_name = ["John", "Smith", "III"]
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assert_equal __, first_name
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assert_equal __, last_name
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end
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def test_parallel_assignments_with_splat_operator
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first_name, *last_name = ["John", "Smith", "III"]
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assert_equal __, first_name
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assert_equal __, last_name
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end
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def test_parallel_assignments_with_too_few_variables
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first_name, last_name = ["Cher"]
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assert_equal __, first_name
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assert_equal __, last_name
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end
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def test_parallel_assignments_with_subarrays
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first_name, last_name = [["Willie", "Rae"], "Johnson"]
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assert_equal __, first_name
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assert_equal __, last_name
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end
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def test_parallel_assignment_with_one_variable
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first_name, = ["John", "Smith"]
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assert_equal __, first_name
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end
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def test_swapping_with_parallel_assignment
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first_name = "Roy"
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last_name = "Rob"
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first_name, last_name = last_name, first_name
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assert_equal __, first_name
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assert_equal __, last_name
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end
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end
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