419 lines
10 KiB
Ruby
419 lines
10 KiB
Ruby
# frozen_string_literal: true
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require_relative "abstract_unit"
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class AssertionsTest < ActiveSupport::TestCase
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def setup
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@object = Class.new do
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attr_accessor :num
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def increment
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self.num += 1
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end
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def decrement
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self.num -= 1
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end
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end.new
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@object.num = 0
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end
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def test_assert_not
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assert_equal true, assert_not(nil)
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assert_equal true, assert_not(false)
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e = assert_raises(Minitest::Assertion) { assert_not true }
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assert_equal "Expected true to be nil or false", e.message
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e = assert_raises(Minitest::Assertion) { assert_not true, "custom" }
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assert_equal "custom", e.message
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end
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def test_assert_no_difference_pass
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assert_no_difference "@object.num" do
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# ...
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end
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end
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def test_assert_no_difference_fail
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error = assert_raises(Minitest::Assertion) do
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assert_no_difference "@object.num" do
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@object.increment
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end
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end
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assert_equal "\"@object.num\" didn't change by 0.\nExpected: 0\n Actual: 1", error.message
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end
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def test_assert_no_difference_with_message_fail
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error = assert_raises(Minitest::Assertion) do
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assert_no_difference "@object.num", "Object Changed" do
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@object.increment
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end
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end
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assert_equal "Object Changed.\n\"@object.num\" didn't change by 0.\nExpected: 0\n Actual: 1", error.message
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end
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def test_assert_no_difference_with_multiple_expressions_pass
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another_object = @object.dup
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assert_no_difference ["@object.num", -> { another_object.num }] do
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# ...
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end
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end
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def test_assert_no_difference_with_multiple_expressions_fail
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another_object = @object.dup
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assert_raises(Minitest::Assertion) do
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assert_no_difference ["@object.num", -> { another_object.num }], "Another Object Changed" do
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another_object.increment
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end
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end
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end
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def test_assert_difference
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assert_difference "@object.num", +1 do
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@object.increment
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end
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end
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def test_assert_difference_retval
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incremented = assert_difference "@object.num", +1 do
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@object.increment
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end
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assert_equal incremented, 1
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end
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def test_assert_difference_with_implicit_difference
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assert_difference "@object.num" do
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@object.increment
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end
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end
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def test_arbitrary_expression
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assert_difference "@object.num + 1", +2 do
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@object.increment
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@object.increment
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end
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end
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def test_negative_differences
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assert_difference "@object.num", -1 do
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@object.decrement
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end
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end
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def test_expression_is_evaluated_in_the_appropriate_scope
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silence_warnings do
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local_scope = "foo"
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_ = local_scope # to suppress unused variable warning
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assert_difference("local_scope; @object.num") { @object.increment }
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end
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end
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def test_array_of_expressions
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assert_difference [ "@object.num", "@object.num + 1" ], +1 do
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@object.increment
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end
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end
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def test_array_of_expressions_identify_failure
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assert_raises(Minitest::Assertion) do
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assert_difference ["@object.num", "1 + 1"] do
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@object.increment
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end
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end
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end
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def test_array_of_expressions_identify_failure_when_message_provided
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assert_raises(Minitest::Assertion) do
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assert_difference ["@object.num", "1 + 1"], 1, "something went wrong" do
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@object.increment
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end
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end
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end
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def test_hash_of_expressions
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assert_difference "@object.num" => 1, "@object.num + 1" => 1 do
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@object.increment
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end
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end
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def test_hash_of_expressions_with_message
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error = assert_raises Minitest::Assertion do
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assert_difference({ "@object.num" => 0 }, "Object Changed") do
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@object.increment
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end
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end
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assert_equal "Object Changed.\n\"@object.num\" didn't change by 0.\nExpected: 0\n Actual: 1", error.message
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end
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def test_hash_of_lambda_expressions
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assert_difference -> { @object.num } => 1, -> { @object.num + 1 } => 1 do
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@object.increment
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end
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end
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def test_hash_of_expressions_identify_failure
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assert_raises(Minitest::Assertion) do
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assert_difference "@object.num" => 1, "1 + 1" => 1 do
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@object.increment
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end
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end
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end
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def test_assert_changes_pass
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assert_changes "@object.num" do
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@object.increment
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end
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end
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def test_assert_changes_pass_with_lambda
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assert_changes -> { @object.num } do
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@object.increment
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end
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end
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def test_assert_changes_with_from_option
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assert_changes "@object.num", from: 0 do
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@object.increment
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end
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end
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def test_assert_changes_with_from_option_with_wrong_value
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assert_raises Minitest::Assertion do
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assert_changes "@object.num", from: -1 do
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@object.increment
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end
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end
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end
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def test_assert_changes_with_from_option_with_nil
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error = assert_raises Minitest::Assertion do
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assert_changes "@object.num", from: nil do
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@object.increment
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end
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end
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assert_equal "Expected change from nil", error.message
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end
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def test_assert_changes_with_to_option
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assert_changes "@object.num", to: 1 do
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@object.increment
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end
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end
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def test_assert_changes_with_to_option_but_no_change_has_special_message
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error = assert_raises Minitest::Assertion do
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assert_changes "@object.num", to: 0 do
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# no changes
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end
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end
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assert_equal "\"@object.num\" didn't change. It was already 0.\nExpected 0 to not be equal to 0.", error.message
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end
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def test_assert_changes_with_wrong_to_option
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assert_raises Minitest::Assertion do
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assert_changes "@object.num", to: 2 do
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@object.increment
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end
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end
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end
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def test_assert_changes_with_from_option_and_to_option
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assert_changes "@object.num", from: 0, to: 1 do
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@object.increment
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end
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end
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def test_assert_changes_with_from_and_to_options_and_wrong_to_value
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assert_raises Minitest::Assertion do
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assert_changes "@object.num", from: 0, to: 2 do
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@object.increment
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end
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end
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end
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def test_assert_changes_works_with_any_object
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# Silences: instance variable @new_object not initialized.
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retval = silence_warnings do
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assert_changes :@new_object, from: nil, to: 42 do
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@new_object = 42
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end
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end
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assert_equal 42, retval
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end
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def test_assert_changes_works_with_nil
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oldval = @object
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retval = assert_changes :@object, from: oldval, to: nil do
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@object = nil
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end
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assert_nil retval
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end
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def test_assert_changes_with_to_and_case_operator
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token = nil
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assert_changes -> { token }, to: /\w{32}/ do
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token = SecureRandom.hex
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end
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end
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def test_assert_changes_with_to_and_from_and_case_operator
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token = SecureRandom.hex
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assert_changes -> { token }, from: /\w{32}/, to: /\w{32}/ do
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token = SecureRandom.hex
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end
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end
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def test_assert_changes_with_message
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error = assert_raises Minitest::Assertion do
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assert_changes "@object.num", "@object.num should be 1", to: 1 do
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@object.decrement
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end
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end
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assert_equal "@object.num should be 1.\nExpected change to 1\n", error.message
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end
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def test_assert_no_changes_pass
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assert_no_changes "@object.num" do
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# ...
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end
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end
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def test_assert_no_changes_with_message
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error = assert_raises Minitest::Assertion do
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assert_no_changes "@object.num", "@object.num should not change" do
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@object.increment
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end
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end
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assert_equal "@object.num should not change.\n\"@object.num\" changed.\nExpected: 0\n Actual: 1", error.message
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end
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def test_assert_no_changes_with_long_string_wont_output_everything
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lines = "HEY\n" * 12
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error = assert_raises Minitest::Assertion do
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assert_no_changes "lines" do
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lines += "HEY ALSO\n"
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end
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end
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assert_match <<~output, error.message
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"lines" changed.
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--- expected
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+++ actual
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@@ -10,4 +10,5 @@
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HEY
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HEY
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HEY
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+HEY ALSO
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"
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output
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end
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end
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# Setup and teardown callbacks.
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class SetupAndTeardownTest < ActiveSupport::TestCase
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setup :reset_callback_record, :foo
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teardown :foo, :sentinel
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def test_inherited_setup_callbacks
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assert_equal [:reset_callback_record, :foo], self.class._setup_callbacks.map(&:raw_filter)
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assert_equal [:foo], @called_back
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assert_equal [:foo, :sentinel], self.class._teardown_callbacks.map(&:raw_filter)
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end
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def setup
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end
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def teardown
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end
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private
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def reset_callback_record
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@called_back = []
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end
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def foo
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@called_back << :foo
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end
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def sentinel
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assert_equal [:foo], @called_back
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end
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end
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class SubclassSetupAndTeardownTest < SetupAndTeardownTest
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setup :bar
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teardown :bar
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def test_inherited_setup_callbacks
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assert_equal [:reset_callback_record, :foo, :bar], self.class._setup_callbacks.map(&:raw_filter)
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assert_equal [:foo, :bar], @called_back
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assert_equal [:foo, :sentinel, :bar], self.class._teardown_callbacks.map(&:raw_filter)
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end
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private
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def bar
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@called_back << :bar
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end
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def sentinel
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assert_equal [:foo, :bar, :bar], @called_back
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end
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end
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class TestCaseTaggedLoggingTest < ActiveSupport::TestCase
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def before_setup
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require "stringio"
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@out = StringIO.new
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self.tagged_logger = ActiveSupport::TaggedLogging.new(Logger.new(@out))
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super
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end
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def test_logs_tagged_with_current_test_case
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assert_match "#{self.class}: #{name}\n", @out.string
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end
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end
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class TestOrderTest < ActiveSupport::TestCase
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def setup
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@original_test_order = ActiveSupport::TestCase.test_order
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end
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def teardown
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ActiveSupport::TestCase.test_order = @original_test_order
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end
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def test_defaults_to_random
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ActiveSupport::TestCase.test_order = nil
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assert_equal :random, ActiveSupport::TestCase.test_order
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assert_equal :random, ActiveSupport.test_order
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end
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def test_test_order_is_global
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ActiveSupport::TestCase.test_order = :sorted
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assert_equal :sorted, ActiveSupport.test_order
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assert_equal :sorted, ActiveSupport::TestCase.test_order
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assert_equal :sorted, self.class.test_order
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assert_equal :sorted, Class.new(ActiveSupport::TestCase).test_order
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ActiveSupport.test_order = :random
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assert_equal :random, ActiveSupport.test_order
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assert_equal :random, ActiveSupport::TestCase.test_order
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assert_equal :random, self.class.test_order
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assert_equal :random, Class.new(ActiveSupport::TestCase).test_order
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end
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end
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