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author | Valentin Rothberg <rothberg@redhat.com> | 2019-02-05 11:51:41 +0100 |
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committer | Valentin Rothberg <rothberg@redhat.com> | 2019-02-06 11:14:06 +0100 |
commit | 9ac0ebb0791851aea81ecc847802db5a39bfb6e7 (patch) | |
tree | 30ad98bcc2c2dd1136f46a48cbc44d422adfa184 /vendor/github.com/onsi/gomega/internal/asyncassertion/async_assertion.go | |
parent | 51714d5da7aaa19014fd67b48b79dfbd5f69c1f0 (diff) | |
download | podman-9ac0ebb0791851aea81ecc847802db5a39bfb6e7.tar.gz podman-9ac0ebb0791851aea81ecc847802db5a39bfb6e7.tar.bz2 podman-9ac0ebb0791851aea81ecc847802db5a39bfb6e7.zip |
Cirrus: add vendor_check_task
* Make sure that all vendored dependencies are in sync with the code and
the vendor.conf by running `make vendor` with a follow-up status check
of the git tree.
* Vendor ginkgo and gomega to include the test dependencies.
Signed-off-by: Chris Evic <cevich@redhat.com>
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Diffstat (limited to 'vendor/github.com/onsi/gomega/internal/asyncassertion/async_assertion.go')
-rw-r--r-- | vendor/github.com/onsi/gomega/internal/asyncassertion/async_assertion.go | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/vendor/github.com/onsi/gomega/internal/asyncassertion/async_assertion.go b/vendor/github.com/onsi/gomega/internal/asyncassertion/async_assertion.go new file mode 100644 index 000000000..cdab233eb --- /dev/null +++ b/vendor/github.com/onsi/gomega/internal/asyncassertion/async_assertion.go @@ -0,0 +1,194 @@ +package asyncassertion + +import ( + "errors" + "fmt" + "reflect" + "time" + + "github.com/onsi/gomega/internal/oraclematcher" + "github.com/onsi/gomega/types" +) + +type AsyncAssertionType uint + +const ( + AsyncAssertionTypeEventually AsyncAssertionType = iota + AsyncAssertionTypeConsistently +) + +type AsyncAssertion struct { + asyncType AsyncAssertionType + actualInput interface{} + timeoutInterval time.Duration + pollingInterval time.Duration + failWrapper *types.GomegaFailWrapper + offset int +} + +func New(asyncType AsyncAssertionType, actualInput interface{}, failWrapper *types.GomegaFailWrapper, timeoutInterval time.Duration, pollingInterval time.Duration, offset int) *AsyncAssertion { + actualType := reflect.TypeOf(actualInput) + if actualType.Kind() == reflect.Func { + if actualType.NumIn() != 0 || actualType.NumOut() == 0 { + panic("Expected a function with no arguments and one or more return values.") + } + } + + return &AsyncAssertion{ + asyncType: asyncType, + actualInput: actualInput, + failWrapper: failWrapper, + timeoutInterval: timeoutInterval, + pollingInterval: pollingInterval, + offset: offset, + } +} + +func (assertion *AsyncAssertion) Should(matcher types.GomegaMatcher, optionalDescription ...interface{}) bool { + assertion.failWrapper.TWithHelper.Helper() + return assertion.match(matcher, true, optionalDescription...) +} + +func (assertion *AsyncAssertion) ShouldNot(matcher types.GomegaMatcher, optionalDescription ...interface{}) bool { + assertion.failWrapper.TWithHelper.Helper() + return assertion.match(matcher, false, optionalDescription...) +} + +func (assertion *AsyncAssertion) buildDescription(optionalDescription ...interface{}) string { + switch len(optionalDescription) { + case 0: + return "" + default: + return fmt.Sprintf(optionalDescription[0].(string), optionalDescription[1:]...) + "\n" + } +} + +func (assertion *AsyncAssertion) actualInputIsAFunction() bool { + actualType := reflect.TypeOf(assertion.actualInput) + return actualType.Kind() == reflect.Func && actualType.NumIn() == 0 && actualType.NumOut() > 0 +} + +func (assertion *AsyncAssertion) pollActual() (interface{}, error) { + if assertion.actualInputIsAFunction() { + values := reflect.ValueOf(assertion.actualInput).Call([]reflect.Value{}) + + extras := []interface{}{} + for _, value := range values[1:] { + extras = append(extras, value.Interface()) + } + + success, message := vetExtras(extras) + + if !success { + return nil, errors.New(message) + } + + return values[0].Interface(), nil + } + + return assertion.actualInput, nil +} + +func (assertion *AsyncAssertion) matcherMayChange(matcher types.GomegaMatcher, value interface{}) bool { + if assertion.actualInputIsAFunction() { + return true + } + + return oraclematcher.MatchMayChangeInTheFuture(matcher, value) +} + +func (assertion *AsyncAssertion) match(matcher types.GomegaMatcher, desiredMatch bool, optionalDescription ...interface{}) bool { + timer := time.Now() + timeout := time.After(assertion.timeoutInterval) + + description := assertion.buildDescription(optionalDescription...) + + var matches bool + var err error + mayChange := true + value, err := assertion.pollActual() + if err == nil { + mayChange = assertion.matcherMayChange(matcher, value) + matches, err = matcher.Match(value) + } + + assertion.failWrapper.TWithHelper.Helper() + + fail := func(preamble string) { + errMsg := "" + message := "" + if err != nil { + errMsg = "Error: " + err.Error() + } else { + if desiredMatch { + message = matcher.FailureMessage(value) + } else { + message = matcher.NegatedFailureMessage(value) + } + } + assertion.failWrapper.TWithHelper.Helper() + assertion.failWrapper.Fail(fmt.Sprintf("%s after %.3fs.\n%s%s%s", preamble, time.Since(timer).Seconds(), description, message, errMsg), 3+assertion.offset) + } + + if assertion.asyncType == AsyncAssertionTypeEventually { + for { + if err == nil && matches == desiredMatch { + return true + } + + if !mayChange { + fail("No future change is possible. Bailing out early") + return false + } + + select { + case <-time.After(assertion.pollingInterval): + value, err = assertion.pollActual() + if err == nil { + mayChange = assertion.matcherMayChange(matcher, value) + matches, err = matcher.Match(value) + } + case <-timeout: + fail("Timed out") + return false + } + } + } else if assertion.asyncType == AsyncAssertionTypeConsistently { + for { + if !(err == nil && matches == desiredMatch) { + fail("Failed") + return false + } + + if !mayChange { + return true + } + + select { + case <-time.After(assertion.pollingInterval): + value, err = assertion.pollActual() + if err == nil { + mayChange = assertion.matcherMayChange(matcher, value) + matches, err = matcher.Match(value) + } + case <-timeout: + return true + } + } + } + + return false +} + +func vetExtras(extras []interface{}) (bool, string) { + for i, extra := range extras { + if extra != nil { + zeroValue := reflect.Zero(reflect.TypeOf(extra)).Interface() + if !reflect.DeepEqual(zeroValue, extra) { + message := fmt.Sprintf("Unexpected non-nil/non-zero extra argument at index %d:\n\t<%T>: %#v", i+1, extra, extra) + return false, message + } + } + } + return true, "" +} |