544 lines
19 KiB
Ruby
544 lines
19 KiB
Ruby
# Author:: Nathaniel Talbott.
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# Copyright:: Copyright (c) 2000-2002 Nathaniel Talbott. All rights reserved.
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# License:: Ruby license.
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require 'test/unit'
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module Test
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module Unit
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class TC_Assertions < TestCase
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def check(value, message="")
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add_assertion
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if (!value)
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raise AssertionFailedError.new(message)
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end
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end
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def check_assertions(expect_fail, expected_message="", return_value_expected=false)
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@actual_assertion_count = 0
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failed = true
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actual_message = nil
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@catch_assertions = true
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return_value = nil
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begin
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return_value = yield
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failed = false
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rescue AssertionFailedError => error
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actual_message = error.message
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end
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@catch_assertions = false
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check(expect_fail == failed, (expect_fail ? "Should have failed, but didn't" : "Should not have failed, but did with message\n<#{actual_message}>"))
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check(1 == @actual_assertion_count, "Should have made one assertion but made <#{@actual_assertion_count}>")
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if (expect_fail)
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case expected_message
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when String
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check(actual_message == expected_message, "Should have the correct message.\n<#{expected_message.inspect}> expected but was\n<#{actual_message.inspect}>")
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when Regexp
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check(actual_message =~ expected_message, "The message should match correctly.\n</#{expected_message.source}/> expected to match\n<#{actual_message.inspect}>")
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else
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check(false, "Incorrect expected message type in assert_nothing_failed")
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end
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else
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if (!return_value_expected)
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check(return_value.nil?, "Should not return a value but returned <#{return_value}>")
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else
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check(!return_value.nil?, "Should return a value")
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end
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end
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return return_value
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end
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def check_nothing_fails(return_value_expected=false, &proc)
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check_assertions(false, "", return_value_expected, &proc)
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end
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def check_fails(expected_message="", &proc)
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check_assertions(true, expected_message, &proc)
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end
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def test_assert_block
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check_nothing_fails {
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assert_block {true}
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}
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check_nothing_fails {
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assert_block("successful assert_block") {true}
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}
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check_nothing_fails {
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assert_block("successful assert_block") {true}
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}
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check_fails("assert_block failed.") {
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assert_block {false}
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}
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check_fails("failed assert_block") {
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assert_block("failed assert_block") {false}
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}
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end
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def test_assert
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check_nothing_fails{assert("a")}
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check_nothing_fails{assert(true)}
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check_nothing_fails{assert(true, "successful assert")}
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check_fails("<nil> is not true."){assert(nil)}
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check_fails("<false> is not true."){assert(false)}
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check_fails("failed assert.\n<false> is not true."){assert(false, "failed assert")}
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end
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def test_assert_equal
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check_nothing_fails {
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assert_equal("string1", "string1")
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}
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check_nothing_fails {
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assert_equal( "string1", "string1", "successful assert_equal")
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}
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check_nothing_fails {
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assert_equal("string1", "string1", "successful assert_equal")
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}
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check_fails(%Q{<"string1"> expected but was\n<"string2">.}) {
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assert_equal("string1", "string2")
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}
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check_fails(%Q{failed assert_equal.\n<"string1"> expected but was\n<"string2">.}) {
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assert_equal("string1", "string2", "failed assert_equal")
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}
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check_fails(%Q{<"1"> expected but was\n<1>.}) do
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assert_equal("1", 1)
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end
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end
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def test_assert_raise
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return_value = nil
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check_nothing_fails(true) {
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return_value = assert_raise(RuntimeError) {
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raise "Error"
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}
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}
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check(return_value.kind_of?(Exception), "Should have returned the exception from a successful assert_raise")
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check(return_value.message == "Error", "Should have returned the correct exception from a successful assert_raise")
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check_nothing_fails(true) {
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assert_raise(ArgumentError, "successful assert_raise") {
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raise ArgumentError.new("Error")
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}
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}
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check_nothing_fails(true) {
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assert_raise(RuntimeError) {
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raise "Error"
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}
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}
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check_nothing_fails(true) {
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assert_raise(RuntimeError, "successful assert_raise") {
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raise "Error"
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}
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}
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check_fails("<RuntimeError> exception expected but none was thrown.") {
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assert_raise(RuntimeError) {
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1 + 1
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}
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}
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check_fails(%r{\Afailed assert_raise.\n<ArgumentError> exception expected but was\nClass: <RuntimeError>\nMessage: <"Error">\n---Backtrace---\n.+\n---------------\Z}m) {
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assert_raise(ArgumentError, "failed assert_raise") {
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raise "Error"
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}
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}
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check_fails("Should expect a class of exception, Object.\n<false> is not true.") {
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assert_nothing_raised(Object) {
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1 + 1
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}
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}
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exceptions = [ArgumentError, TypeError]
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modules = [Math, Comparable]
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rescues = exceptions + modules
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exceptions.each do |exc|
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check_nothing_fails(true) {
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return_value = assert_raise(*rescues) {
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raise exc, "Error"
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}
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}
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check(return_value.instance_of?(exc), "Should have returned #{exc} but was #{return_value.class}")
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check(return_value.message == "Error", "Should have returned the correct exception from a successful assert_raise")
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end
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modules.each do |mod|
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check_nothing_fails(true) {
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return_value = assert_raise(*rescues) {
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raise Exception.new("Error").extend(mod)
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}
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}
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check(mod === return_value, "Should have returned #{mod}")
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check(return_value.message == "Error", "Should have returned the correct exception from a successful assert_raise")
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end
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check_fails("<[ArgumentError, TypeError, Math, Comparable]> exception expected but none was thrown.") {
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assert_raise(*rescues) {
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1 + 1
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}
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}
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check_fails(%r{\Afailed assert_raise.
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<\[ArgumentError, TypeError\]> exception expected but was
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Class: <RuntimeError>
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Message: <"Error">
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---Backtrace---
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.+
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---------------\Z}m) {
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assert_raise(ArgumentError, TypeError, "failed assert_raise") {
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raise "Error"
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}
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}
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end
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def test_assert_instance_of
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check_nothing_fails {
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assert_instance_of(String, "string")
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}
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check_nothing_fails {
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assert_instance_of(String, "string", "successful assert_instance_of")
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}
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check_nothing_fails {
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assert_instance_of(String, "string", "successful assert_instance_of")
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}
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check_fails(%Q{<"string"> expected to be an instance of\n<Hash> but was\n<String>.}) {
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assert_instance_of(Hash, "string")
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}
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check_fails(%Q{failed assert_instance_of.\n<"string"> expected to be an instance of\n<Hash> but was\n<String>.}) {
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assert_instance_of(Hash, "string", "failed assert_instance_of")
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}
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end
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def test_assert_nil
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check_nothing_fails {
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assert_nil(nil)
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}
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check_nothing_fails {
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assert_nil(nil, "successful assert_nil")
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}
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check_nothing_fails {
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assert_nil(nil, "successful assert_nil")
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}
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check_fails(%Q{<nil> expected but was\n<"string">.}) {
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assert_nil("string")
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}
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check_fails(%Q{failed assert_nil.\n<nil> expected but was\n<"string">.}) {
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assert_nil("string", "failed assert_nil")
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}
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end
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def test_assert_not_nil
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check_nothing_fails{assert_not_nil(false)}
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check_nothing_fails{assert_not_nil(false, "message")}
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check_fails("<nil> expected to not be nil."){assert_not_nil(nil)}
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check_fails("message.\n<nil> expected to not be nil.") {assert_not_nil(nil, "message")}
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end
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def test_assert_kind_of
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check_nothing_fails {
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assert_kind_of(Module, Array)
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}
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check_nothing_fails {
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assert_kind_of(Object, "string", "successful assert_kind_of")
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}
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check_nothing_fails {
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assert_kind_of(Object, "string", "successful assert_kind_of")
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}
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check_nothing_fails {
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assert_kind_of(Comparable, 1)
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}
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check_fails(%Q{<"string">\nexpected to be kind_of?\n<Class> but was\n<String>.}) {
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assert_kind_of(Class, "string")
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}
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check_fails(%Q{failed assert_kind_of.\n<"string">\nexpected to be kind_of?\n<Class> but was\n<String>.}) {
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assert_kind_of(Class, "string", "failed assert_kind_of")
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}
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end
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def test_assert_match
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check_nothing_fails {
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assert_match(/strin./, "string")
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}
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check_nothing_fails {
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assert_match("strin", "string")
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}
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check_nothing_fails {
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assert_match(/strin./, "string", "successful assert_match")
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}
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check_nothing_fails {
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assert_match(/strin./, "string", "successful assert_match")
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}
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check_fails(%Q{<"string"> expected to be =~\n</slin./>.}) {
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assert_match(/slin./, "string")
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}
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check_fails(%Q{<"string"> expected to be =~\n</strin\\./>.}) {
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assert_match("strin.", "string")
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}
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check_fails(%Q{failed assert_match.\n<"string"> expected to be =~\n</slin./>.}) {
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assert_match(/slin./, "string", "failed assert_match")
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}
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end
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def test_assert_same
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thing = "thing"
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check_nothing_fails {
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assert_same(thing, thing)
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}
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check_nothing_fails {
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assert_same(thing, thing, "successful assert_same")
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}
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check_nothing_fails {
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assert_same(thing, thing, "successful assert_same")
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}
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thing2 = "thing"
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check_fails(%Q{<"thing">\nwith id <#{thing.__id__}> expected to be equal? to\n<"thing">\nwith id <#{thing2.__id__}>.}) {
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assert_same(thing, thing2)
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}
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check_fails(%Q{failed assert_same.\n<"thing">\nwith id <#{thing.__id__}> expected to be equal? to\n<"thing">\nwith id <#{thing2.__id__}>.}) {
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assert_same(thing, thing2, "failed assert_same")
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}
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end
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def test_assert_nothing_raised
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check_nothing_fails {
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assert_nothing_raised {
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1 + 1
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}
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}
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check_nothing_fails {
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assert_nothing_raised("successful assert_nothing_raised") {
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1 + 1
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}
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}
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check_nothing_fails {
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assert_nothing_raised("successful assert_nothing_raised") {
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1 + 1
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}
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}
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check_nothing_fails {
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begin
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assert_nothing_raised(RuntimeError, StandardError, Comparable, "successful assert_nothing_raised") {
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raise ZeroDivisionError.new("ArgumentError")
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}
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rescue ZeroDivisionError
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end
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}
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check_fails("Should expect a class of exception, Object.\n<false> is not true.") {
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assert_nothing_raised(Object) {
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1 + 1
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}
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}
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check_fails(%r{\AException raised:\nClass: <RuntimeError>\nMessage: <"Error">\n---Backtrace---\n.+\n---------------\Z}m) {
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assert_nothing_raised {
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raise "Error"
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}
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}
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check_fails(%r{\Afailed assert_nothing_raised\.\nException raised:\nClass: <RuntimeError>\nMessage: <"Error">\n---Backtrace---\n.+\n---------------\Z}m) {
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assert_nothing_raised("failed assert_nothing_raised") {
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raise "Error"
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}
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}
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check_fails(%r{\AException raised:\nClass: <RuntimeError>\nMessage: <"Error">\n---Backtrace---\n.+\n---------------\Z}m) {
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assert_nothing_raised(StandardError, RuntimeError) {
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raise "Error"
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}
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}
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check_fails("Failure.") do
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assert_nothing_raised do
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flunk("Failure")
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end
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end
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end
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def test_flunk
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check_fails("Flunked.") {
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flunk
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}
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check_fails("flunk message.") {
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flunk("flunk message")
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}
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end
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def test_assert_not_same
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thing = "thing"
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thing2 = "thing"
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check_nothing_fails {
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assert_not_same(thing, thing2)
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}
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check_nothing_fails {
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assert_not_same(thing, thing2, "message")
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}
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check_fails(%Q{<"thing">\nwith id <#{thing.__id__}> expected to not be equal? to\n<"thing">\nwith id <#{thing.__id__}>.}) {
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assert_not_same(thing, thing)
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}
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check_fails(%Q{message.\n<"thing">\nwith id <#{thing.__id__}> expected to not be equal? to\n<"thing">\nwith id <#{thing.__id__}>.}) {
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assert_not_same(thing, thing, "message")
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}
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end
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def test_assert_not_equal
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check_nothing_fails {
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assert_not_equal("string1", "string2")
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}
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check_nothing_fails {
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assert_not_equal("string1", "string2", "message")
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}
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check_fails(%Q{<"string"> expected to be != to\n<"string">.}) {
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assert_not_equal("string", "string")
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}
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check_fails(%Q{message.\n<"string"> expected to be != to\n<"string">.}) {
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assert_not_equal("string", "string", "message")
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}
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end
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def test_assert_no_match
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check_nothing_fails{assert_no_match(/sling/, "string")}
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check_nothing_fails{assert_no_match(/sling/, "string", "message")}
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check_fails(%Q{The first argument to assert_no_match should be a Regexp.\n<"asdf"> expected to be an instance of\n<Regexp> but was\n<String>.}) do
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assert_no_match("asdf", "asdf")
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end
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check_fails(%Q{</string/> expected to not match\n<"string">.}) do
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assert_no_match(/string/, "string")
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end
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check_fails(%Q{message.\n</string/> expected to not match\n<"string">.}) do
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assert_no_match(/string/, "string", "message")
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end
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end
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def test_assert_throws
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check_nothing_fails {
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assert_throws(:thing, "message") {
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throw :thing
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}
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}
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check_nothing_fails {
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assert_throws(0, "message") {
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throw 0
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}
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}
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obj = Object.new
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check_nothing_fails {
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assert_throws(obj, "message") {
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throw obj
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}
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}
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check_fails("message.\n<\"string\"> expected to be thrown but\n<\"string\"> was thrown.") {
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assert_throws("string", "message") {
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throw "string"
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}
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}
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check_fails("message.\n<:thing> expected to be thrown but\n<:thing2> was thrown.") {
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assert_throws(:thing, "message") {
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throw :thing2
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}
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}
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check_fails("message.\n<:thing> should have been thrown.") {
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assert_throws(:thing, "message") {
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1 + 1
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}
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}
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end
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def test_assert_nothing_thrown
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check_nothing_fails {
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assert_nothing_thrown("message") {
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1 + 1
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}
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}
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check_fails("message.\n<:thing> was thrown when nothing was expected.") {
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assert_nothing_thrown("message") {
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throw :thing
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}
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}
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end
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def test_assert_operator
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check_nothing_fails {
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assert_operator("thing", :==, "thing", "message")
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}
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check_fails(%Q{<0.15>\ngiven as the operator for #assert_operator must be a Symbol or #respond_to?(:to_str).}) do
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assert_operator("thing", 0.15, "thing")
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end
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check_fails(%Q{message.\n<"thing1"> expected to be\n==\n<"thing2">.}) {
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assert_operator("thing1", :==, "thing2", "message")
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}
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end
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def test_assert_respond_to
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check_nothing_fails {
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assert_respond_to("thing", :to_s, "message")
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}
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check_nothing_fails {
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assert_respond_to("thing", "to_s", "message")
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}
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check_fails("<0.15>\ngiven as the method name argument to #assert_respond_to must be a Symbol or #respond_to?(:to_str).") {
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assert_respond_to("thing", 0.15)
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}
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check_fails("message.\n<:symbol>\nof type <Symbol>\nexpected to respond_to?<:non_existent>.") {
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assert_respond_to(:symbol, :non_existent, "message")
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}
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end
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def test_assert_in_delta
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check_nothing_fails {
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assert_in_delta(1.4, 1.4, 0)
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}
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check_nothing_fails {
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assert_in_delta(0.5, 0.4, 0.1, "message")
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}
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check_nothing_fails {
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float_thing = Object.new
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def float_thing.to_f
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0.2
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end
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assert_in_delta(0.1, float_thing, 0.1)
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}
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check_fails("message.\n<0.5> and\n<0.4> expected to be within\n<0.05> of each other.") {
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assert_in_delta(0.5, 0.4, 0.05, "message")
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}
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check_fails(%r{The arguments must respond to to_f; the first float did not\.\n<.+>\nof type <Object>\nexpected to respond_to\?<:to_f>.}) {
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assert_in_delta(Object.new, 0.4, 0.1)
|
|
}
|
|
check_fails("The delta should not be negative.\n<-0.1> expected to be\n>=\n<0.0>.") {
|
|
assert_in_delta(0.5, 0.4, -0.1, "message")
|
|
}
|
|
end
|
|
|
|
def test_assert_send
|
|
object = Object.new
|
|
class << object
|
|
def return_argument(argument, bogus)
|
|
return argument
|
|
end
|
|
end
|
|
check_nothing_fails {
|
|
assert_send([object, :return_argument, true, "bogus"], "message")
|
|
}
|
|
check_fails(%r{\Amessage\.\n<.+> expected to respond to\n<return_argument\(\[false, "bogus"\]\)> with a true value.\Z}) {
|
|
assert_send([object, :return_argument, false, "bogus"], "message")
|
|
}
|
|
end
|
|
|
|
def test_condition_invariant
|
|
object = Object.new
|
|
def object.inspect
|
|
@changed = true
|
|
end
|
|
def object.==(other)
|
|
@changed ||= false
|
|
return (!@changed)
|
|
end
|
|
check_nothing_fails {
|
|
assert_equal(object, object, "message")
|
|
}
|
|
end
|
|
|
|
def add_failure(message, location=caller)
|
|
if (!@catch_assertions)
|
|
super
|
|
end
|
|
end
|
|
|
|
def add_assertion
|
|
if (!@catch_assertions)
|
|
super
|
|
else
|
|
@actual_assertion_count += 1
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|