Method: MiniTest::Assertions#assert_same_elements

Defined in:
lib/minitest/rails/shoulda/assertions.rb

#assert_same_elements(a1, a2, msg = nil) ⇒ Object

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



11
12
13
14
15
16
17
18
19
20
 
# File 'lib/minitest/rails/shoulda/assertions.rb', line 11

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_equal(a1h, a2h, msg)
end