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package matchers_test
import (
"errors"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
. "github.com/onsi/gomega/matchers"
)
type CustomErr struct {
msg string
}
func (e *CustomErr) Error() string {
return e.msg
}
var _ = Describe("HaveOccurred", func() {
It("should succeed if matching an error", func() {
Ω(errors.New("Foo")).Should(HaveOccurred())
})
It("should not succeed with nil", func() {
Ω(nil).ShouldNot(HaveOccurred())
})
It("should only support errors and nil", func() {
success, err := (&HaveOccurredMatcher{}).Match("foo")
Ω(success).Should(BeFalse())
Ω(err).Should(HaveOccurred())
success, err = (&HaveOccurredMatcher{}).Match("")
Ω(success).Should(BeFalse())
Ω(err).Should(HaveOccurred())
})
It("doesn't support non-error type", func() {
success, err := (&HaveOccurredMatcher{}).Match(AnyType{})
Ω(success).Should(BeFalse())
Ω(err).Should(MatchError("Expected an error-type. Got:\n <matchers_test.AnyType>: {}"))
})
It("doesn't support non-error pointer type", func() {
success, err := (&HaveOccurredMatcher{}).Match(&AnyType{})
Ω(success).Should(BeFalse())
Ω(err).Should(MatchError(MatchRegexp(`Expected an error-type. Got:\n <*matchers_test.AnyType | 0x[[:xdigit:]]+>: {}`)))
})
It("should succeed with pointer types that conform to error interface", func() {
err := &CustomErr{"ohai"}
Ω(err).Should(HaveOccurred())
})
It("should not succeed with nil pointers to types that conform to error interface", func() {
var err *CustomErr = nil
Ω(err).ShouldNot(HaveOccurred())
})
})
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