[270] | 1 | ##
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| 2 | # Chapter 13.3 "Methods" ISO Test
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| 3 |
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| 4 | assert('The alias statement', '13.3.6 a) 4)') do
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| 5 | # check aliasing in all possible ways
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| 6 |
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| 7 | def alias_test_method_original; true; end
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| 8 |
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| 9 | alias alias_test_method_a alias_test_method_original
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| 10 | alias :alias_test_method_b :alias_test_method_original
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| 11 |
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| 12 | assert_true(alias_test_method_original)
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| 13 | assert_true(alias_test_method_a)
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| 14 | assert_true(alias_test_method_b)
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| 15 | end
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| 16 |
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| 17 | assert('The alias statement (overwrite original)', '13.3.6 a) 4)') do
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| 18 | # check that an aliased method can be overwritten
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| 19 | # without side effect
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| 20 |
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| 21 | def alias_test_method_original; true; end
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| 22 |
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| 23 | alias alias_test_method_a alias_test_method_original
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| 24 | alias :alias_test_method_b :alias_test_method_original
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| 25 |
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| 26 | assert_true(alias_test_method_original)
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| 27 |
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| 28 | def alias_test_method_original; false; end
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| 29 |
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| 30 | assert_false(alias_test_method_original)
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| 31 | assert_true(alias_test_method_a)
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| 32 | assert_true(alias_test_method_b)
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| 33 | end
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| 34 |
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| 35 | assert('The alias statement', '13.3.6 a) 5)') do
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| 36 | # check that alias is raising NameError if
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| 37 | # non-existing method should be undefined
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| 38 |
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| 39 | assert_raise(NameError) do
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| 40 | alias new_name_a non_existing_method
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| 41 | end
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| 42 |
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| 43 | assert_raise(NameError) do
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| 44 | alias :new_name_b :non_existing_method
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| 45 | end
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| 46 | end
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| 47 |
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| 48 | assert('The undef statement', '13.3.7 a) 4)') do
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| 49 | # check that undef is undefining method
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| 50 | # based on the method name
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| 51 |
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| 52 | def existing_method_a; true; end
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| 53 | def existing_method_b; true; end
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| 54 | def existing_method_c; true; end
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| 55 | def existing_method_d; true; end
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| 56 | def existing_method_e; true; end
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| 57 | def existing_method_f; true; end
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| 58 |
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| 59 | # check that methods are defined
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| 60 |
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| 61 | assert_true(existing_method_a, 'Method should be defined')
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| 62 | assert_true(existing_method_b, 'Method should be defined')
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| 63 | assert_true(existing_method_c, 'Method should be defined')
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| 64 | assert_true(existing_method_d, 'Method should be defined')
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| 65 | assert_true(existing_method_e, 'Method should be defined')
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| 66 | assert_true(existing_method_f, 'Method should be defined')
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| 67 |
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| 68 | # undefine in all possible ways and check that method
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| 69 | # is undefined
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| 70 |
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| 71 | undef existing_method_a
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| 72 | assert_raise(NoMethodError) do
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| 73 | existing_method_a
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| 74 | end
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| 75 |
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| 76 | undef :existing_method_b
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| 77 | assert_raise(NoMethodError) do
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| 78 | existing_method_b
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| 79 | end
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| 80 |
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| 81 | undef existing_method_c, existing_method_d
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| 82 | assert_raise(NoMethodError) do
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| 83 | existing_method_c
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| 84 | end
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| 85 | assert_raise(NoMethodError) do
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| 86 | existing_method_d
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| 87 | end
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| 88 |
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| 89 | undef :existing_method_e, :existing_method_f
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| 90 | assert_raise(NoMethodError) do
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| 91 | existing_method_e
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| 92 | end
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| 93 | assert_raise(NoMethodError) do
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| 94 | existing_method_f
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| 95 | end
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| 96 | end
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| 97 |
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| 98 | assert('The undef statement (method undefined)', '13.3.7 a) 5)') do
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| 99 | # check that undef is raising NameError if
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| 100 | # non-existing method should be undefined
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| 101 |
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| 102 | assert_raise(NameError) do
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| 103 | undef non_existing_method
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| 104 | end
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| 105 |
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| 106 | assert_raise(NameError) do
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| 107 | undef :non_existing_method
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| 108 | end
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| 109 | end
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