func (s *HelpersS) TestValueLoggingWithArrays(c *check.C) {
	checker := &MyChecker{result: false}
	log := "(?s)helpers_test.go:[0-9]+:.*\nhelpers_test.go:[0-9]+:\n" +
		"    return c\\.Check\\(\\[\\]byte{1, 2}, checker, \\[\\]byte{1, 3}\\)\n" +
		"\\.+ myobtained \\[\\]uint8 = \\[\\]byte{0x1, 0x2}\n" +
		"\\.+ myexpected \\[\\]uint8 = \\[\\]byte{0x1, 0x3}\n\n"
	testHelperFailure(c, "Check([]byte{1}, chk, []byte{3})", false, false, log,
		func() interface{} {
			return c.Check([]byte{1, 2}, checker, []byte{1, 3})
		})
}
-----------------------------------------------------------------------
Ensure that values logged work properly in some interesting cases.
package check_test
import (
	"gopkg.in/check.v1"
	"os"
	"reflect"
	"runtime"
	"sync"
)
var helpersS = check.Suite(&HelpersS{})
type HelpersS struct{}
func (s *HelpersS) TestCountSuite(c *check.C) {
	suitesRun += 1
}
type MyChecker struct {
	info   *check.CheckerInfo
	params []interface{}
	names  []string
	result bool
	error  string
}
func (checker *MyChecker) Info() *check.CheckerInfo {
	if checker.info == nil {
		return &check.CheckerInfo{Name: "MyChecker", Params: []string{"myobtained", "myexpected"}}
	}
	return checker.info
}
func (checker *MyChecker) Check(params []interface{}, names []string) (bool, string) {
	rparams := checker.params
	rnames := checker.names
	checker.params = append([]interface{}{}, params...)
	checker.names = append([]string{}, names...)
	if rparams != nil {
		copy(params, rparams)
	}
	if rnames != nil {
		copy(names, rnames)
	}
	return checker.result, checker.error
}
type myCommentType string
func (c myCommentType) CheckCommentString() string {
	return string(c)
}
func myComment(s string) myCommentType {
	return myCommentType(s)
}
func (s *HelpersS) TestCheckerInterface(c *check.C) {
	testHelperSuccess(c, "Check(1, Equals, 1)", true, func() interface{} {
		return c.Check(1, check.Equals, 1)
	})
}
func (s *HelpersS) TestCheckSucceedWithExpected(c *check.C) {
	checker := &MyChecker{result: true}
	testHelperSuccess(c, "Check(1, checker, 2)", true, func() interface{} {
		return c.Check(1, checker, 2)
	})
	if !reflect.DeepEqual(checker.params, []interface{}{1, 2}) {
		c.Fatalf("Bad params for check: %#v", checker.params)
	}
}
func (s *HelpersS) TestCheckSucceedWithoutExpected(c *check.C) {
	checker := &MyChecker{result: true, info: &check.CheckerInfo{Params: []string{"myvalue"}}}
	testHelperSuccess(c, "Check(1, checker)", true, func() interface{} {
		return c.Check(1, checker)
	})
	if !reflect.DeepEqual(checker.params, []interface{}{1}) {
		c.Fatalf("Bad params for check: %#v", checker.params)
	}
}
func (s *HelpersS) TestCheckFailWithExpected(c *check.C) {
	checker := &MyChecker{result: false}
	log := "(?s)helpers_test\\.go:[0-9]+:.*\nhelpers_test\\.go:[0-9]+:\n" +
		"    return c\\.Check\\(1, checker, 2\\)\n" +
		"\\.+ myobtained int = 1\n" +
		"\\.+ myexpected int = 2\n\n"
	testHelperFailure(c, "Check(1, checker, 2)", false, false, log,
		func() interface{} {
			return c.Check(1, checker, 2)
		})
}
func (s *HelpersS) TestCheckFailWithExpectedAndComment(c *check.C) {
	checker := &MyChecker{result: false}
	log := "(?s)helpers_test\\.go:[0-9]+:.*\nhelpers_test\\.go:[0-9]+:\n" +
		"    return c\\.Check\\(1, checker, 2, myComment\\(\"Hello world!\"\\)\\)\n" +
		"\\.+ myobtained int = 1\n" +
		"\\.+ myexpected int = 2\n" +
		"\\.+ Hello world!\n\n"
	testHelperFailure(c, "Check(1, checker, 2, msg)", false, false, log,
		func() interface{} {
			return c.Check(1, checker, 2, myComment("Hello world!"))
		})
}
func (s *HelpersS) TestCheckFailWithExpectedAndStaticComment(c *check.C) {
	checker := &MyChecker{result: false}
	log := "(?s)helpers_test\\.go:[0-9]+:.*\nhelpers_test\\.go:[0-9]+:\n" +
		"    // Nice leading comment\\.\n" +
		"    return c\\.Check\\(1, checker, 2\\) // Hello there\n" +
		"\\.+ myobtained int = 1\n" +
		"\\.+ myexpected int = 2\n\n"
	testHelperFailure(c, "Check(1, checker, 2, msg)", false, false, log,
		func() interface{} {
			return c.Check(1, checker, 2)  
		})
}
func (s *HelpersS) TestCheckFailWithoutExpected(c *check.C) {
	checker := &MyChecker{result: false, info: &check.CheckerInfo{Params: []string{"myvalue"}}}
	log := "(?s)helpers_test\\.go:[0-9]+:.*\nhelpers_test\\.go:[0-9]+:\n" +
		"    return c\\.Check\\(1, checker\\)\n" +
		"\\.+ myvalue int = 1\n\n"
	testHelperFailure(c, "Check(1, checker)", false, false, log,
		func() interface{} {
			return c.Check(1, checker)
		})
}
func (s *HelpersS) TestCheckFailWithoutExpectedAndMessage(c *check.C) {
	checker := &MyChecker{result: false, info: &check.CheckerInfo{Params: []string{"myvalue"}}}
	log := "(?s)helpers_test\\.go:[0-9]+:.*\nhelpers_test\\.go:[0-9]+:\n" +
		"    return c\\.Check\\(1, checker, myComment\\(\"Hello world!\"\\)\\)\n" +
		"\\.+ myvalue int = 1\n" +
		"\\.+ Hello world!\n\n"
	testHelperFailure(c, "Check(1, checker, msg)", false, false, log,
		func() interface{} {
			return c.Check(1, checker, myComment("Hello world!"))
		})
}
func (s *HelpersS) TestCheckWithMissingExpected(c *check.C) {
	checker := &MyChecker{result: true}
	log := "(?s)helpers_test\\.go:[0-9]+:.*\nhelpers_test\\.go:[0-9]+:\n" +
		"    return c\\.Check\\(1, checker\\)\n" +
		"\\.+ Check\\(myobtained, MyChecker, myexpected\\):\n" +
		"\\.+ Wrong number of parameters for MyChecker: " +
		"want 3, got 2\n\n"
	testHelperFailure(c, "Check(1, checker, !?)", false, false, log,
		func() interface{} {
			return c.Check(1, checker)
		})
}
func (s *HelpersS) TestCheckWithTooManyExpected(c *check.C) {
	checker := &MyChecker{result: true}
	log := "(?s)helpers_test\\.go:[0-9]+:.*\nhelpers_test\\.go:[0-9]+:\n" +
		"    return c\\.Check\\(1, checker, 2, 3\\)\n" +
		"\\.+ Check\\(myobtained, MyChecker, myexpected\\):\n" +
		"\\.+ Wrong number of parameters for MyChecker: " +
		"want 3, got 4\n\n"
	testHelperFailure(c, "Check(1, checker, 2, 3)", false, false, log,
		func() interface{} {
			return c.Check(1, checker, 2, 3)
		})
}
func (s *HelpersS) TestCheckWithError(c *check.C) {
	checker := &MyChecker{result: false, error: "Some not so cool data provided!"}
	log := "(?s)helpers_test\\.go:[0-9]+:.*\nhelpers_test\\.go:[0-9]+:\n" +
		"    return c\\.Check\\(1, checker, 2\\)\n" +
		"\\.+ myobtained int = 1\n" +
		"\\.+ myexpected int = 2\n" +
		"\\.+ Some not so cool data provided!\n\n"
	testHelperFailure(c, "Check(1, checker, 2)", false, false, log,
		func() interface{} {
			return c.Check(1, checker, 2)
		})
}
func (s *HelpersS) TestCheckWithNilChecker(c *check.C) {
	log := "(?s)helpers_test\\.go:[0-9]+:.*\nhelpers_test\\.go:[0-9]+:\n" +
		"    return c\\.Check\\(1, nil\\)\n" +
		"\\.+ Check\\(obtained, nil!\\?, \\.\\.\\.\\):\n" +
		"\\.+ Oops\\.\\. you've provided a nil checker!\n\n"
	testHelperFailure(c, "Check(obtained, nil)", false, false, log,
		func() interface{} {
			return c.Check(1, nil)
		})
}
func (s *HelpersS) TestCheckWithParamsAndNamesMutation(c *check.C) {
	checker := &MyChecker{result: false, params: []interface{}{3, 4}, names: []string{"newobtained", "newexpected"}}
	log := "(?s)helpers_test\\.go:[0-9]+:.*\nhelpers_test\\.go:[0-9]+:\n" +
		"    return c\\.Check\\(1, checker, 2\\)\n" +
		"\\.+ newobtained int = 3\n" +
		"\\.+ newexpected int = 4\n\n"
	testHelperFailure(c, "Check(1, checker, 2) with mutation", false, false, log,
		func() interface{} {
			return c.Check(1, checker, 2)
		})
}
func (s *HelpersS) TestAssertSucceedWithExpected(c *check.C) {
	checker := &MyChecker{result: true}
	testHelperSuccess(c, "Assert(1, checker, 2)", nil, func() interface{} {
		c.Assert(1, checker, 2)
		return nil
	})
	if !reflect.DeepEqual(checker.params, []interface{}{1, 2}) {
		c.Fatalf("Bad params for check: %#v", checker.params)
	}
}
func (s *HelpersS) TestAssertSucceedWithoutExpected(c *check.C) {
	checker := &MyChecker{result: true, info: &check.CheckerInfo{Params: []string{"myvalue"}}}
	testHelperSuccess(c, "Assert(1, checker)", nil, func() interface{} {
		c.Assert(1, checker)
		return nil
	})
	if !reflect.DeepEqual(checker.params, []interface{}{1}) {
		c.Fatalf("Bad params for check: %#v", checker.params)
	}
}
func (s *HelpersS) TestAssertFailWithExpected(c *check.C) {
	checker := &MyChecker{result: false}
	log := "(?s)helpers_test\\.go:[0-9]+:.*\nhelpers_test\\.go:[0-9]+:\n" +
		"    c\\.Assert\\(1, checker, 2\\)\n" +
		"\\.+ myobtained int = 1\n" +
		"\\.+ myexpected int = 2\n\n"
	testHelperFailure(c, "Assert(1, checker, 2)", nil, true, log,
		func() interface{} {
			c.Assert(1, checker, 2)
			return nil
		})
}
func (s *HelpersS) TestAssertFailWithExpectedAndMessage(c *check.C) {
	checker := &MyChecker{result: false}
	log := "(?s)helpers_test\\.go:[0-9]+:.*\nhelpers_test\\.go:[0-9]+:\n" +
		"    c\\.Assert\\(1, checker, 2, myComment\\(\"Hello world!\"\\)\\)\n" +
		"\\.+ myobtained int = 1\n" +
		"\\.+ myexpected int = 2\n" +
		"\\.+ Hello world!\n\n"
	testHelperFailure(c, "Assert(1, checker, 2, msg)", nil, true, log,
		func() interface{} {
			c.Assert(1, checker, 2, myComment("Hello world!"))
			return nil
		})
}
func (s *HelpersS) TestAssertFailWithoutExpected(c *check.C) {
	checker := &MyChecker{result: false, info: &check.CheckerInfo{Params: []string{"myvalue"}}}
	log := "(?s)helpers_test\\.go:[0-9]+:.*\nhelpers_test\\.go:[0-9]+:\n" +
		"    c\\.Assert\\(1, checker\\)\n" +
		"\\.+ myvalue int = 1\n\n"
	testHelperFailure(c, "Assert(1, checker)", nil, true, log,
		func() interface{} {
			c.Assert(1, checker)
			return nil
		})
}
func (s *HelpersS) TestAssertFailWithoutExpectedAndMessage(c *check.C) {
	checker := &MyChecker{result: false, info: &check.CheckerInfo{Params: []string{"myvalue"}}}
	log := "(?s)helpers_test\\.go:[0-9]+:.*\nhelpers_test\\.go:[0-9]+:\n" +
		"    c\\.Assert\\(1, checker, myComment\\(\"Hello world!\"\\)\\)\n" +
		"\\.+ myvalue int = 1\n" +
		"\\.+ Hello world!\n\n"
	testHelperFailure(c, "Assert(1, checker, msg)", nil, true, log,
		func() interface{} {
			c.Assert(1, checker, myComment("Hello world!"))
			return nil
		})
}
func (s *HelpersS) TestAssertWithMissingExpected(c *check.C) {
	checker := &MyChecker{result: true}
	log := "(?s)helpers_test\\.go:[0-9]+:.*\nhelpers_test\\.go:[0-9]+:\n" +
		"    c\\.Assert\\(1, checker\\)\n" +
		"\\.+ Assert\\(myobtained, MyChecker, myexpected\\):\n" +
		"\\.+ Wrong number of parameters for MyChecker: " +
		"want 3, got 2\n\n"
	testHelperFailure(c, "Assert(1, checker, !?)", nil, true, log,
		func() interface{} {
			c.Assert(1, checker)
			return nil
		})
}
func (s *HelpersS) TestAssertWithError(c *check.C) {
	checker := &MyChecker{result: false, error: "Some not so cool data provided!"}
	log := "(?s)helpers_test\\.go:[0-9]+:.*\nhelpers_test\\.go:[0-9]+:\n" +
		"    c\\.Assert\\(1, checker, 2\\)\n" +
		"\\.+ myobtained int = 1\n" +
		"\\.+ myexpected int = 2\n" +
		"\\.+ Some not so cool data provided!\n\n"
	testHelperFailure(c, "Assert(1, checker, 2)", nil, true, log,
		func() interface{} {
			c.Assert(1, checker, 2)
			return nil
		})
}
func (s *HelpersS) TestAssertWithNilChecker(c *check.C) {
	log := "(?s)helpers_test\\.go:[0-9]+:.*\nhelpers_test\\.go:[0-9]+:\n" +
		"    c\\.Assert\\(1, nil\\)\n" +
		"\\.+ Assert\\(obtained, nil!\\?, \\.\\.\\.\\):\n" +
		"\\.+ Oops\\.\\. you've provided a nil checker!\n\n"
	testHelperFailure(c, "Assert(obtained, nil)", nil, true, log,
		func() interface{} {
			c.Assert(1, nil)
			return nil
		})
}