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package matchers_test
import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
. "github.com/onsi/gomega/matchers"
)
var _ = Describe("MatchYAMLMatcher", func() {
Context("When passed stringifiables", func() {
It("should succeed if the YAML matches", func() {
Expect("---").Should(MatchYAML(""))
Expect("a: 1").Should(MatchYAML(`{"a":1}`))
Expect("a: 1\nb: 2").Should(MatchYAML(`{"b":2, "a":1}`))
})
It("should explain if the YAML does not match when it should", func() {
message := (&MatchYAMLMatcher{YAMLToMatch: "a: 1"}).FailureMessage("b: 2")
Expect(message).To(MatchRegexp(`Expected\s+<string>: b: 2\s+to match YAML of\s+<string>: a: 1`))
})
It("should normalise the expected and actual when explaining if the YAML does not match when it should", func() {
message := (&MatchYAMLMatcher{YAMLToMatch: "a: 'one'"}).FailureMessage("{b: two}")
Expect(message).To(MatchRegexp(`Expected\s+<string>: b: two\s+to match YAML of\s+<string>: a: one`))
})
It("should explain if the YAML matches when it should not", func() {
message := (&MatchYAMLMatcher{YAMLToMatch: "a: 1"}).NegatedFailureMessage("a: 1")
Expect(message).To(MatchRegexp(`Expected\s+<string>: a: 1\s+not to match YAML of\s+<string>: a: 1`))
})
It("should normalise the expected and actual when explaining if the YAML matches when it should not", func() {
message := (&MatchYAMLMatcher{YAMLToMatch: "a: 'one'"}).NegatedFailureMessage("{a: one}")
Expect(message).To(MatchRegexp(`Expected\s+<string>: a: one\s+not to match YAML of\s+<string>: a: one`))
})
It("should fail if the YAML does not match", func() {
Expect("a: 1").ShouldNot(MatchYAML(`{"b":2, "a":1}`))
})
It("should work with byte arrays", func() {
Expect([]byte("a: 1")).Should(MatchYAML([]byte("a: 1")))
Expect("a: 1").Should(MatchYAML([]byte("a: 1")))
Expect([]byte("a: 1")).Should(MatchYAML("a: 1"))
})
})
Context("when the expected is not valid YAML", func() {
It("should error and explain why", func() {
success, err := (&MatchYAMLMatcher{YAMLToMatch: ""}).Match("good:\nbad")
Expect(success).Should(BeFalse())
Expect(err).Should(HaveOccurred())
Expect(err.Error()).Should(ContainSubstring("Actual 'good:\nbad' should be valid YAML"))
})
})
Context("when the actual is not valid YAML", func() {
It("should error and explain why", func() {
success, err := (&MatchYAMLMatcher{YAMLToMatch: "good:\nbad"}).Match("")
Expect(success).Should(BeFalse())
Expect(err).Should(HaveOccurred())
Expect(err.Error()).Should(ContainSubstring("Expected 'good:\nbad' should be valid YAML"))
})
})
Context("when the expected is neither a string nor a stringer nor a byte array", func() {
It("should error", func() {
success, err := (&MatchYAMLMatcher{YAMLToMatch: 2}).Match("")
Expect(success).Should(BeFalse())
Expect(err).Should(HaveOccurred())
Expect(err.Error()).Should(ContainSubstring("MatchYAMLMatcher matcher requires a string, stringer, or []byte. Got expected:\n <int>: 2"))
success, err = (&MatchYAMLMatcher{YAMLToMatch: nil}).Match("")
Expect(success).Should(BeFalse())
Expect(err).Should(HaveOccurred())
Expect(err.Error()).Should(ContainSubstring("MatchYAMLMatcher matcher requires a string, stringer, or []byte. Got expected:\n <nil>: nil"))
})
})
Context("when the actual is neither a string nor a stringer nor a byte array", func() {
It("should error", func() {
success, err := (&MatchYAMLMatcher{YAMLToMatch: ""}).Match(2)
Expect(success).Should(BeFalse())
Expect(err).Should(HaveOccurred())
Expect(err.Error()).Should(ContainSubstring("MatchYAMLMatcher matcher requires a string, stringer, or []byte. Got actual:\n <int>: 2"))
success, err = (&MatchYAMLMatcher{YAMLToMatch: ""}).Match(nil)
Expect(success).Should(BeFalse())
Expect(err).Should(HaveOccurred())
Expect(err.Error()).Should(ContainSubstring("MatchYAMLMatcher matcher requires a string, stringer, or []byte. Got actual:\n <nil>: nil"))
})
})
})
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