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package shakers
import (
"fmt"
"time"
"github.com/go-check/check"
)
// Default format when parsing (in addition to RFC and default time formats..)
const shortForm = "2006-01-02"
// IsBefore checker verifies the specified value is before the specified time.
// It is exclusive.
//
// c.Assert(myTime, IsBefore, theTime, check.Commentf("bouuuhhh"))
//
var IsBefore check.Checker = &isBeforeChecker{
&check.CheckerInfo{
Name: "IsBefore",
Params: []string{"obtained", "expected"},
},
}
type isBeforeChecker struct {
*check.CheckerInfo
}
func (checker *isBeforeChecker) Check(params []interface{}, names []string) (bool, string) {
return isBefore(params[0], params[1])
}
func isBefore(value, t interface{}) (bool, string) {
tTime, ok := parseTime(t)
if !ok {
return false, "expected must be a Time struct, or parseable."
}
valueTime, valueIsTime := parseTime(value)
if valueIsTime {
return valueTime.Before(tTime), ""
}
return false, "obtained value is not a time.Time struct or parseable as a time."
}
// IsAfter checker verifies the specified value is before the specified time.
// It is exclusive.
//
// c.Assert(myTime, IsAfter, theTime, check.Commentf("bouuuhhh"))
//
var IsAfter check.Checker = &isAfterChecker{
&check.CheckerInfo{
Name: "IsAfter",
Params: []string{"obtained", "expected"},
},
}
type isAfterChecker struct {
*check.CheckerInfo
}
func (checker *isAfterChecker) Check(params []interface{}, names []string) (bool, string) {
return isAfter(params[0], params[1])
}
func isAfter(value, t interface{}) (bool, string) {
tTime, ok := parseTime(t)
if !ok {
return false, "expected must be a Time struct, or parseable."
}
valueTime, valueIsTime := parseTime(value)
if valueIsTime {
return valueTime.After(tTime), ""
}
return false, "obtained value is not a time.Time struct or parseable as a time."
}
// IsBetween checker verifies the specified time is between the specified start
// and end. It's exclusive so if the specified time is at the tip of the interval.
//
// c.Assert(myTime, IsBetween, startTime, endTime, check.Commentf("bouuuhhh"))
//
var IsBetween check.Checker = &isBetweenChecker{
&check.CheckerInfo{
Name: "IsBetween",
Params: []string{"obtained", "start", "end"},
},
}
type isBetweenChecker struct {
*check.CheckerInfo
}
func (checker *isBetweenChecker) Check(params []interface{}, names []string) (bool, string) {
return isBetween(params[0], params[1], params[2])
}
func isBetween(value, start, end interface{}) (bool, string) {
startTime, ok := parseTime(start)
if !ok {
return false, "start must be a Time struct, or parseable."
}
endTime, ok := parseTime(end)
if !ok {
return false, "end must be a Time struct, or parseable."
}
valueTime, valueIsTime := parseTime(value)
if valueIsTime {
return valueTime.After(startTime) && valueTime.Before(endTime), ""
}
return false, "obtained value is not a time.Time struct or parseable as a time."
}
// TimeEquals checker verifies the specified time is the equal to the expected
// time.
//
// c.Assert(myTime, TimeEquals, expected, check.Commentf("bouhhh"))
//
// It's possible to ignore some part of the time (like hours, minutes, etc..) using
// the TimeIgnore checker with it.
//
// c.Assert(myTime, TimeIgnore(TimeEquals, time.Hour), expected, check.Commentf("... bouh.."))
//
var TimeEquals check.Checker = &timeEqualsChecker{
&check.CheckerInfo{
Name: "TimeEquals",
Params: []string{"obtained", "expected"},
},
}
type timeEqualsChecker struct {
*check.CheckerInfo
}
func (checker *timeEqualsChecker) Check(params []interface{}, names []string) (bool, string) {
return timeEquals(params[0], params[1])
}
func timeEquals(obtained, expected interface{}) (bool, string) {
expectedTime, ok := parseTime(expected)
if !ok {
return false, "expected must be a Time struct, or parseable."
}
valueTime, valueIsTime := parseTime(obtained)
if valueIsTime {
return valueTime.Equal(expectedTime), ""
}
return false, "obtained value is not a time.Time struct or parseable as a time."
}
// TimeIgnore checker will ignore some part of the time on the encapsulated checker.
//
// c.Assert(myTime, TimeIgnore(IsBetween, time.Second), start, end)
//
// FIXME use interface{} for ignore (to enable "Month", ..
func TimeIgnore(checker check.Checker, ignore time.Duration) check.Checker {
return &timeIgnoreChecker{
sub: checker,
ignore: ignore,
}
}
type timeIgnoreChecker struct {
sub check.Checker
ignore time.Duration
}
func (checker *timeIgnoreChecker) Info() *check.CheckerInfo {
info := *checker.sub.Info()
info.Name = fmt.Sprintf("TimeIgnore(%s, %v)", info.Name, checker.ignore)
return &info
}
func (checker *timeIgnoreChecker) Check(params []interface{}, names []string) (bool, string) {
// Naive implementation : all params are supposed to be date
mParams := make([]interface{}, len(params))
for index, param := range params {
paramTime, ok := parseTime(param)
if !ok {
return false, fmt.Sprintf("%s must be a Time struct, or parseable.", names[index])
}
year := paramTime.Year()
month := paramTime.Month()
day := paramTime.Day()
hour := paramTime.Hour()
min := paramTime.Minute()
sec := paramTime.Second()
nsec := paramTime.Nanosecond()
location := paramTime.Location()
switch checker.ignore {
case time.Hour:
hour = 0
fallthrough
case time.Minute:
min = 0
fallthrough
case time.Second:
sec = 0
fallthrough
case time.Millisecond:
fallthrough
case time.Microsecond:
fallthrough
case time.Nanosecond:
nsec = 0
}
mParams[index] = time.Date(year, month, day, hour, min, sec, nsec, location)
}
return checker.sub.Check(mParams, names)
}
func parseTime(datetime interface{}) (time.Time, bool) {
switch datetime.(type) {
case time.Time:
return datetime.(time.Time), true
case string:
return parseTimeAsString(datetime.(string))
default:
if datetimeWithStr, ok := datetime.(fmt.Stringer); ok {
return parseTimeAsString(datetimeWithStr.String())
}
return time.Time{}, false
}
}
func parseTimeAsString(timeAsStr string) (time.Time, bool) {
forms := []string{shortForm, time.RFC3339, time.RFC3339Nano, time.RFC822, time.RFC822Z}
for _, form := range forms {
datetime, err := time.Parse(form, timeAsStr)
if err == nil {
return datetime, true
}
}
return time.Time{}, false
}
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