lib/shoulda/assertions.rb in francois-shoulda-2.0.5.4 vs lib/shoulda/assertions.rb in francois-shoulda-2.10.1

- old
+ new

@@ -1,49 +1,59 @@ -module ThoughtBot # :nodoc: - module Shoulda # :nodoc: - module Assertions - # Asserts that two arrays contain the same elements, the same number of times. Essentially ==, but unordered. - # - # assert_same_elements([:a, :b, :c], [:c, :a, :b]) => passes - def assert_same_elements(a1, a2, msg = nil) - [:select, :inject, :size].each do |m| - [a1, a2].each {|a| assert_respond_to(a, m, "Are you sure that #{a.inspect} is an array? It doesn't respond to #{m}.") } - end +module Shoulda # :nodoc: + module Assertions + # Asserts that two arrays contain the same elements, the same number of times. Essentially ==, but unordered. + # + # assert_same_elements([:a, :b, :c], [:c, :a, :b]) => passes + def assert_same_elements(a1, a2, msg = nil) + [:select, :inject, :size].each do |m| + [a1, a2].each {|a| assert_respond_to(a, m, "Are you sure that #{a.inspect} is an array? It doesn't respond to #{m}.") } + end - assert a1h = a1.inject({}) { |h,e| h[e] = a1.select { |i| i == e }.size; h } - assert a2h = a2.inject({}) { |h,e| h[e] = a2.select { |i| i == e }.size; h } + assert a1h = a1.inject({}) { |h,e| h[e] = a1.select { |i| i == e }.size; h } + assert a2h = a2.inject({}) { |h,e| h[e] = a2.select { |i| i == e }.size; h } - assert_equal(a1h, a2h, msg) - end + assert_equal(a1h, a2h, msg) + end - # Asserts that the given collection contains item x. If x is a regular expression, ensure that - # at least one element from the collection matches x. +extra_msg+ is appended to the error message if the assertion fails. - # - # assert_contains(['a', '1'], /\d/) => passes - # assert_contains(['a', '1'], 'a') => passes - # assert_contains(['a', '1'], /not there/) => fails - def assert_contains(collection, x, extra_msg = "") - collection = [collection] unless collection.is_a?(Array) - msg = "#{x.inspect} not found in #{collection.to_a.inspect} #{extra_msg}" - case x - when Regexp - assert(collection.detect { |e| e =~ x }, msg) - else - assert(collection.include?(x), msg) - end + # Asserts that the given collection contains item x. If x is a regular expression, ensure that + # at least one element from the collection matches x. +extra_msg+ is appended to the error message if the assertion fails. + # + # assert_contains(['a', '1'], /\d/) => passes + # assert_contains(['a', '1'], 'a') => passes + # assert_contains(['a', '1'], /not there/) => fails + def assert_contains(collection, x, extra_msg = "") + collection = [collection] unless collection.is_a?(Array) + msg = "#{x.inspect} not found in #{collection.to_a.inspect} #{extra_msg}" + case x + when Regexp + assert(collection.detect { |e| e =~ x }, msg) + else + assert(collection.include?(x), msg) end + end - # Asserts that the given collection does not contain item x. If x is a regular expression, ensure that - # none of the elements from the collection match x. - def assert_does_not_contain(collection, x, extra_msg = "") - collection = [collection] unless collection.is_a?(Array) - msg = "#{x.inspect} found in #{collection.to_a.inspect} " + extra_msg - case x - when Regexp - assert(!collection.detect { |e| e =~ x }, msg) - else - assert(!collection.include?(x), msg) - end + # Asserts that the given collection does not contain item x. If x is a regular expression, ensure that + # none of the elements from the collection match x. + def assert_does_not_contain(collection, x, extra_msg = "") + collection = [collection] unless collection.is_a?(Array) + msg = "#{x.inspect} found in #{collection.to_a.inspect} " + extra_msg + case x + when Regexp + assert(!collection.detect { |e| e =~ x }, msg) + else + assert(!collection.include?(x), msg) end + end + + # Asserts that the given matcher returns true when +target+ is passed to #matches? + def assert_accepts(matcher, target) + success = matcher.matches?(target) + assert_block(matcher.failure_message) { success } + end + + # Asserts that the given matcher returns false when +target+ is passed to #matches? + def assert_rejects(matcher, target) + success = !matcher.matches?(target) + assert_block(matcher.negative_failure_message) { success } end end end