6592f3d36e
Evidently, a lot of changes / pull requests were made to the koans directory and not to the src directory. Perhaps we should remove the koans directory entirely from the repo.
135 lines
2.6 KiB
Ruby
135 lines
2.6 KiB
Ruby
require File.expand_path(File.dirname(__FILE__) + '/edgecase')
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class AboutControlStatements < EdgeCase::Koan
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def test_if_then_else_statements
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if true
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result = :true_value
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else
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result = :false_value
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end
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assert_equal __, result
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end
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def test_if_then_statements
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result = :default_value
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if true
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result = :true_value
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end
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assert_equal __, result
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end
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def test_if_statements_return_values
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value = if true
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:true_value
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else
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:false_value
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end
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assert_equal __, value
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value = if false
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:true_value
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else
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:false_value
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end
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assert_equal __, value
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# NOTE: Actually, EVERY statement in Ruby will return a value, not
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# just if statements.
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end
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def test_if_statements_with_no_else_with_false_condition_return_value
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value = if false
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:true_value
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end
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assert_equal __, value
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end
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def test_condition_operators
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assert_equal __, (true ? :true_value : :false_value)
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assert_equal __, (false ? :true_value : :false_value)
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end
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def test_if_statement_modifiers
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result = :default_value
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result = :true_value if true
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assert_equal __, result
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end
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def test_unless_statement
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result = :default_value
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unless false # same as saying 'if !false', which evaluates as 'if true'
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result = :false_value
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end
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assert_equal __, result
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end
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def test_unless_statement_evaluate_true
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result = :default_value
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unless true # same as saying 'if !true', which evaluates as 'if false'
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result = :true_value
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end
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assert_equal __, result
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end
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def test_unless_statement_modifier
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result = :default_value
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result = :false_value unless false
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assert_equal __, result
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end
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def test_while_statement
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i = 1
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result = 1
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while i <= 10
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result = result * i
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i += 1
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end
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assert_equal __, result
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end
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def test_break_statement
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i = 1
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result = 1
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while true
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break unless i <= 10
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result = result * i
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i += 1
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end
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assert_equal __, result
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end
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def test_break_statement_returns_values
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i = 1
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result = while i <= 10
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break i if i % 2 == 0
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i += 1
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end
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assert_equal __, result
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end
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def test_next_statement
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i = 0
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result = []
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while i < 10
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i += 1
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next if (i % 2) == 0
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result << i
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end
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assert_equal __, result
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end
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def test_for_statement
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array = ["fish", "and", "chips"]
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result = []
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for item in array
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result << item.upcase
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end
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assert_equal [__, __, __], result
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end
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end
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