Golang C.Errorf方法代码示例

// AfterTest gets the current goroutines and runs the returned function to
// get the goroutines at that time to contrast wheter any goroutines leaked.
// Usage: defer testleak.AfterTest(c)()
// It can call with BeforeTest() at the beginning of check.Suite.TearDownSuite() or
// call alone at the beginning of each test.
func AfterTest(c *check.C) func() {
	if len(beforeTestGorountines) == 0 {
		for _, g := range interestingGoroutines() {
			beforeTestGorountines[g] = true
		}
	}

	return func() {
		defer func() {
			beforeTestGorountines = map[string]bool{}
		}()

		var leaked []string
		for i := 0; i < 50; i++ {
			for _, g := range interestingGoroutines() {
				if !beforeTestGorountines[g] {
					leaked = append(leaked, g)
				}
			}
			// Bad stuff found, but goroutines might just still be
			// shutting down, so give it some time.
			if len(leaked) != 0 {
				leaked = leaked[:0]
				time.Sleep(50 * time.Millisecond)
				continue
			}

			return
		}
		for _, g := range leaked {
			c.Errorf("Test appears to have leaked: %v", g)
		}
	}
}

func (s *FoundationS) TestFailureHeader(c *check.C) {
	output := String{}
	failHelper := FailHelper{}
	check.Run(&failHelper, &check.RunConf{Output: &output})
	header := fmt.Sprintf(""+
		"\n-----------------------------------"+
		"-----------------------------------\n"+
		"FAIL: check_test.go:%d: FailHelper.TestLogAndFail\n",
		failHelper.testLine)
	if strings.Index(output.value, header) == -1 {
		c.Errorf(""+
			"Failure didn't print a proper header.\n"+
			"... Got:\n%s... Expected something with:\n%s",
			output.value, header)
	}
}

func (s *FoundationS) TestErrorf(c *check.C) {
	// Do not use checkState() here.  It depends on Errorf() working.
	expectedLog := fmt.Sprintf("foundation_test.go:%d:\n"+
		"    c.Errorf(\"Error %%v!\", \"message\")\n"+
		"... Error: Error message!\n\n",
		getMyLine()+1)
	c.Errorf("Error %v!", "message")
	failed := c.Failed()
	c.Succeed()
	if log := c.GetTestLog(); log != expectedLog {
		c.Logf("Errorf() logged %#v rather than %#v", log, expectedLog)
		c.Fail()
	}
	if !failed {
		c.Logf("Errorf() didn't put the test in a failed state")
		c.Fail()
	}
}

// Verify the state of the test.  Note that since this also verifies if
// the test is supposed to be in a failed state, no other checks should
// be done in addition to what is being tested.
func checkState(c *check.C, result interface{}, expected *expectedState) {
	failed := c.Failed()
	c.Succeed()
	log := c.GetTestLog()
	matched, matchError := regexp.MatchString("^"+expected.log+"$", log)
	if matchError != nil {
		c.Errorf("Error in matching expression used in testing %s",
			expected.name)
	} else if !matched {
		c.Errorf("%s logged:\n----------\n%s----------\n\nExpected:\n----------\n%s\n----------",
			expected.name, log, expected.log)
	}
	if result != expected.result {
		c.Errorf("%s returned %#v rather than %#v",
			expected.name, result, expected.result)
	}
	if failed != expected.failed {
		if failed {
			c.Errorf("%s has failed when it shouldn't", expected.name)
		} else {
			c.Errorf("%s has not failed when it should", expected.name)
		}
	}
}