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require File.expand_path('../../test_helper', __FILE__)
require 'mocha/sequence'
require 'mocha/expectation'
class SequenceTest < Test::Unit::TestCase
include Mocha
class FakeExpectation
attr_reader :ordering_constraints
def initialize(satisfied = false)
@satisfied = satisfied
@ordering_constraints = []
end
def add_ordering_constraint(ordering_constraint)
@ordering_constraints << ordering_constraint
end
def satisfied?
@satisfied
end
end
def test_should_be_satisfied_if_no_expectations_added
sequence = Sequence.new('name')
assert sequence.satisfied_to_index?(0)
end
def test_should_be_satisfied_if_one_unsatisfied_expectations_added_but_it_is_not_included_by_index
sequence = Sequence.new('name')
expectation = FakeExpectation.new(false)
sequence.constrain_as_next_in_sequence(expectation)
assert sequence.satisfied_to_index?(0)
end
def test_should_not_be_satisfied_if_one_unsatisfied_expectations_added_and_it_is_included_by_index
sequence = Sequence.new('name')
expectation = FakeExpectation.new(false)
sequence.constrain_as_next_in_sequence(expectation)
assert !sequence.satisfied_to_index?(1)
end
def test_should_be_satisfied_if_one_satisfied_expectations_added_and_it_is_included_by_index
sequence = Sequence.new('name')
expectation = FakeExpectation.new(true)
sequence.constrain_as_next_in_sequence(expectation)
assert sequence.satisfied_to_index?(1)
end
def test_should_not_be_satisfied_if_one_satisfied_and_one_unsatisfied_expectation_added_and_both_are_included_by_index
sequence = Sequence.new('name')
expectation_one = FakeExpectation.new(true)
expectation_two = FakeExpectation.new(false)
sequence.constrain_as_next_in_sequence(expectation_one)
sequence.constrain_as_next_in_sequence(expectation_two)
assert !sequence.satisfied_to_index?(2)
end
def test_should_be_satisfied_if_two_satisfied_expectations_added_and_both_are_included_by_index
sequence = Sequence.new('name')
expectation_one = FakeExpectation.new(true)
expectation_two = FakeExpectation.new(true)
sequence.constrain_as_next_in_sequence(expectation_one)
sequence.constrain_as_next_in_sequence(expectation_two)
assert sequence.satisfied_to_index?(2)
end
def test_should_add_ordering_constraint_to_expectation
sequence = Sequence.new('name')
expectation = FakeExpectation.new
sequence.constrain_as_next_in_sequence(expectation)
assert_equal 1, expectation.ordering_constraints.length
end
def test_should_not_allow_invocation_of_second_method_when_first_n_sequence_has_not_been_invoked
sequence = Sequence.new('name')
expectation_one = FakeExpectation.new(false)
expectation_two = FakeExpectation.new(false)
sequence.constrain_as_next_in_sequence(expectation_one)
sequence.constrain_as_next_in_sequence(expectation_two)
assert !expectation_two.ordering_constraints[0].allows_invocation_now?
end
def test_should_allow_invocation_of_second_method_when_first_in_sequence_has_been_invoked
sequence = Sequence.new('name')
expectation_one = FakeExpectation.new(true)
expectation_two = FakeExpectation.new(false)
sequence.constrain_as_next_in_sequence(expectation_one)
sequence.constrain_as_next_in_sequence(expectation_two)
assert expectation_two.ordering_constraints[0].allows_invocation_now?
end
def test_should_describe_ordering_constraint_as_being_part_of_named_sequence
sequence = Sequence.new('wibble')
expectation = FakeExpectation.new
sequence.constrain_as_next_in_sequence(expectation)
assert_equal "in sequence 'wibble'", expectation.ordering_constraints[0].mocha_inspect
end
end
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