forked from cerc-io/ipld-eth-server
68 lines
1.9 KiB
Go
68 lines
1.9 KiB
Go
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package matchers
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import (
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"fmt"
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"github.com/onsi/gomega/format"
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"github.com/onsi/gomega/internal/oraclematcher"
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"github.com/onsi/gomega/types"
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)
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type OrMatcher struct {
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Matchers []types.GomegaMatcher
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// state
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firstSuccessfulMatcher types.GomegaMatcher
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}
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func (m *OrMatcher) Match(actual interface{}) (success bool, err error) {
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m.firstSuccessfulMatcher = nil
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for _, matcher := range m.Matchers {
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success, err := matcher.Match(actual)
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if err != nil {
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return false, err
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}
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if success {
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m.firstSuccessfulMatcher = matcher
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return true, nil
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}
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}
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return false, nil
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}
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func (m *OrMatcher) FailureMessage(actual interface{}) (message string) {
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// not the most beautiful list of matchers, but not bad either...
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return format.Message(actual, fmt.Sprintf("To satisfy at least one of these matchers: %s", m.Matchers))
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}
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func (m *OrMatcher) NegatedFailureMessage(actual interface{}) (message string) {
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return m.firstSuccessfulMatcher.NegatedFailureMessage(actual)
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}
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func (m *OrMatcher) MatchMayChangeInTheFuture(actual interface{}) bool {
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/*
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Example with 3 matchers: A, B, C
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Match evaluates them: F, T, <?> => T
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So match is currently T, what should MatchMayChangeInTheFuture() return?
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Seems like it only depends on B, since currently B MUST change to allow the result to become F
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Match eval: F, F, F => F
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So match is currently F, what should MatchMayChangeInTheFuture() return?
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Seems to depend on ANY of them being able to change to T.
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*/
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if m.firstSuccessfulMatcher != nil {
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// one of the matchers succeeded.. it must be able to change in order to affect the result
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return oraclematcher.MatchMayChangeInTheFuture(m.firstSuccessfulMatcher, actual)
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} else {
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// so all matchers failed.. Any one of them changing would change the result.
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for _, matcher := range m.Matchers {
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if oraclematcher.MatchMayChangeInTheFuture(matcher, actual) {
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return true
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}
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}
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return false // none of were going to change
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}
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}
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