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require 'minitest/mock'
require 'minitest/unit'
MiniTest::Unit.autorun
class TestMiniTestMock < MiniTest::Unit::TestCase
def setup
@mock = MiniTest::Mock.new.expect(:foo, nil)
@mock.expect(:meaning_of_life, 42)
end
def test_create_stub_method
assert_nil @mock.foo
end
def test_allow_return_value_specification
assert_equal 42, @mock.meaning_of_life
end
def test_blow_up_if_not_called
@mock.foo
util_verify_bad "expected meaning_of_life() => 42, got []"
end
def test_not_blow_up_if_everything_called
@mock.foo
@mock.meaning_of_life
assert @mock.verify
end
def test_allow_expectations_to_be_added_after_creation
@mock.expect(:bar, true)
assert @mock.bar
end
def test_not_verify_if_new_expected_method_is_not_called
@mock.foo
@mock.meaning_of_life
@mock.expect(:bar, true)
util_verify_bad "expected bar() => true, got []"
end
def test_blow_up_on_wrong_number_of_arguments
@mock.foo
@mock.meaning_of_life
@mock.expect(:sum, 3, [1, 2])
e = assert_raises ArgumentError do
@mock.sum
end
assert_equal "mocked method :sum expects 2 arguments, got 0", e.message
end
def test_return_mock_does_not_raise
retval = MiniTest::Mock.new
mock = MiniTest::Mock.new
mock.expect(:foo, retval)
mock.foo
assert mock.verify
end
def test_mock_args_does_not_raise
arg = MiniTest::Mock.new
mock = MiniTest::Mock.new
mock.expect(:foo, nil, [arg])
mock.foo(arg)
assert mock.verify
end
def test_blow_up_on_wrong_arguments
@mock.foo
@mock.meaning_of_life
@mock.expect(:sum, 3, [1, 2])
e = assert_raises MockExpectationError do
@mock.sum(2, 4)
end
exp = "mocked method :sum called with unexpected arguments [2, 4]"
assert_equal exp, e.message
end
def test_expect_with_non_array_args
e = assert_raises ArgumentError do
@mock.expect :blah, 3, false
end
assert_equal "args must be an array", e.message
end
def test_respond_appropriately
assert @mock.respond_to?(:foo)
assert @mock.respond_to?('foo')
assert !@mock.respond_to?(:bar)
end
def test_no_method_error_on_unexpected_methods
e = assert_raises NoMethodError do
@mock.bar
end
expected = "unmocked method :bar, expected one of [:foo, :meaning_of_life]"
assert_equal expected, e.message
end
def test_assign_per_mock_return_values
a = MiniTest::Mock.new
b = MiniTest::Mock.new
a.expect(:foo, :a)
b.expect(:foo, :b)
assert_equal :a, a.foo
assert_equal :b, b.foo
end
def test_do_not_create_stub_method_on_new_mocks
a = MiniTest::Mock.new
a.expect(:foo, :a)
assert !MiniTest::Mock.new.respond_to?(:foo)
end
def test_mock_is_a_blank_slate
@mock.expect :kind_of?, true, [Fixnum]
@mock.expect :==, true, [1]
assert @mock.kind_of?(Fixnum), "didn't mock :kind_of\?"
assert @mock == 1, "didn't mock :=="
end
def test_verify_allows_called_args_to_be_loosely_specified
mock = MiniTest::Mock.new
mock.expect :loose_expectation, true, [Integer]
mock.loose_expectation 1
assert mock.verify
end
def test_verify_raises_with_strict_args
mock = MiniTest::Mock.new
mock.expect :strict_expectation, true, [2]
e = assert_raises MockExpectationError do
mock.strict_expectation 1
end
exp = "mocked method :strict_expectation called with unexpected arguments [1]"
assert_equal exp, e.message
end
def test_method_missing_empty
mock = MiniTest::Mock.new
mock.expect :a, nil
mock.a
e = assert_raises MockExpectationError do
mock.a
end
assert_equal "No more expects available for :a: []", e.message
end
def test_same_method_expects_are_verified_when_all_called
mock = MiniTest::Mock.new
mock.expect :foo, nil, [:bar]
mock.expect :foo, nil, [:baz]
mock.foo :bar
mock.foo :baz
assert mock.verify
end
def test_same_method_expects_blow_up_when_not_all_called
mock = MiniTest::Mock.new
mock.expect :foo, nil, [:bar]
mock.expect :foo, nil, [:baz]
mock.foo :bar
e = assert_raises(MockExpectationError) { mock.verify }
exp = "expected foo(:baz) => nil, got [foo(:bar) => nil]"
assert_equal exp, e.message
end
def util_verify_bad exp
e = assert_raises MockExpectationError do
@mock.verify
end
assert_equal exp, e.message
end
end
require "test/minitest/metametameta"
class TestMiniTestStub < MiniTest::Unit::TestCase
def setup
super
MiniTest::Unit::TestCase.reset
@tc = MiniTest::Unit::TestCase.new 'fake tc'
@assertion_count = 1
end
def teardown
super
assert_equal @assertion_count, @tc._assertions
end
def assert_stub val_or_callable
@assertion_count += 1
t = Time.now.to_i
Time.stub :now, val_or_callable do
@tc.assert_equal 42, Time.now
end
@tc.assert_operator Time.now.to_i, :>=, t
end
def test_stub_value
assert_stub 42
end
def test_stub_block
assert_stub lambda { 42 }
end
def test_stub_block_args
@assertion_count += 1
t = Time.now.to_i
Time.stub :now, lambda { |n| n * 2 } do
@tc.assert_equal 42, Time.now(21)
end
@tc.assert_operator Time.now.to_i, :>=, t
end
def test_stub_callable
obj = Object.new
def obj.call
42
end
assert_stub obj
end
end
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