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-rw-r--r--vendor/github.com/onsi/gomega/matchers/receive_matcher.go126
1 files changed, 126 insertions, 0 deletions
diff --git a/vendor/github.com/onsi/gomega/matchers/receive_matcher.go b/vendor/github.com/onsi/gomega/matchers/receive_matcher.go
new file mode 100644
index 0000000..7a8c2cd
--- /dev/null
+++ b/vendor/github.com/onsi/gomega/matchers/receive_matcher.go
@@ -0,0 +1,126 @@
+package matchers
+
+import (
+ "fmt"
+ "reflect"
+
+ "github.com/onsi/gomega/format"
+)
+
+type ReceiveMatcher struct {
+ Arg interface{}
+ receivedValue reflect.Value
+ channelClosed bool
+}
+
+func (matcher *ReceiveMatcher) Match(actual interface{}) (success bool, err error) {
+ if !isChan(actual) {
+ return false, fmt.Errorf("ReceiveMatcher expects a channel. Got:\n%s", format.Object(actual, 1))
+ }
+
+ channelType := reflect.TypeOf(actual)
+ channelValue := reflect.ValueOf(actual)
+
+ if channelType.ChanDir() == reflect.SendDir {
+ return false, fmt.Errorf("ReceiveMatcher matcher cannot be passed a send-only channel. Got:\n%s", format.Object(actual, 1))
+ }
+
+ var subMatcher omegaMatcher
+ var hasSubMatcher bool
+
+ if matcher.Arg != nil {
+ subMatcher, hasSubMatcher = (matcher.Arg).(omegaMatcher)
+ if !hasSubMatcher {
+ argType := reflect.TypeOf(matcher.Arg)
+ if argType.Kind() != reflect.Ptr {
+ return false, fmt.Errorf("Cannot assign a value from the channel:\n%s\nTo:\n%s\nYou need to pass a pointer!", format.Object(actual, 1), format.Object(matcher.Arg, 1))
+ }
+
+ assignable := channelType.Elem().AssignableTo(argType.Elem())
+ if !assignable {
+ return false, fmt.Errorf("Cannot assign a value from the channel:\n%s\nTo:\n%s", format.Object(actual, 1), format.Object(matcher.Arg, 1))
+ }
+ }
+ }
+
+ winnerIndex, value, open := reflect.Select([]reflect.SelectCase{
+ reflect.SelectCase{Dir: reflect.SelectRecv, Chan: channelValue},
+ reflect.SelectCase{Dir: reflect.SelectDefault},
+ })
+
+ var closed bool
+ var didReceive bool
+ if winnerIndex == 0 {
+ closed = !open
+ didReceive = open
+ }
+ matcher.channelClosed = closed
+
+ if closed {
+ return false, nil
+ }
+
+ if hasSubMatcher {
+ if didReceive {
+ matcher.receivedValue = value
+ return subMatcher.Match(matcher.receivedValue.Interface())
+ } else {
+ return false, nil
+ }
+ }
+
+ if didReceive {
+ if matcher.Arg != nil {
+ outValue := reflect.ValueOf(matcher.Arg)
+ reflect.Indirect(outValue).Set(value)
+ }
+
+ return true, nil
+ } else {
+ return false, nil
+ }
+}
+
+func (matcher *ReceiveMatcher) FailureMessage(actual interface{}) (message string) {
+ subMatcher, hasSubMatcher := (matcher.Arg).(omegaMatcher)
+
+ closedAddendum := ""
+ if matcher.channelClosed {
+ closedAddendum = " The channel is closed."
+ }
+
+ if hasSubMatcher {
+ if matcher.receivedValue.IsValid() {
+ return subMatcher.FailureMessage(matcher.receivedValue.Interface())
+ }
+ return "When passed a matcher, ReceiveMatcher's channel *must* receive something."
+ } else {
+ return format.Message(actual, "to receive something."+closedAddendum)
+ }
+}
+
+func (matcher *ReceiveMatcher) NegatedFailureMessage(actual interface{}) (message string) {
+ subMatcher, hasSubMatcher := (matcher.Arg).(omegaMatcher)
+
+ closedAddendum := ""
+ if matcher.channelClosed {
+ closedAddendum = " The channel is closed."
+ }
+
+ if hasSubMatcher {
+ if matcher.receivedValue.IsValid() {
+ return subMatcher.NegatedFailureMessage(matcher.receivedValue.Interface())
+ }
+ return "When passed a matcher, ReceiveMatcher's channel *must* receive something."
+ } else {
+ return format.Message(actual, "not to receive anything."+closedAddendum)
+ }
+}
+
+func (matcher *ReceiveMatcher) MatchMayChangeInTheFuture(actual interface{}) bool {
+ if !isChan(actual) {
+ return false
+ }
+
+ return !matcher.channelClosed
+}