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package matchers_test
import (
"encoding/json"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
. "github.com/onsi/gomega/matchers"
)
var _ = Describe("MatchJSONMatcher", func() {
Context("When passed stringifiables", func() {
It("should succeed if the JSON matches", func() {
Expect("{}").Should(MatchJSON("{}"))
Expect(`{"a":1}`).Should(MatchJSON(`{"a":1}`))
Expect(`{
"a":1
}`).Should(MatchJSON(`{"a":1}`))
Expect(`{"a":1, "b":2}`).Should(MatchJSON(`{"b":2, "a":1}`))
Expect(`{"a":1}`).ShouldNot(MatchJSON(`{"b":2, "a":1}`))
Expect(`{"a":"a", "b":"b"}`).ShouldNot(MatchJSON(`{"a":"a", "b":"b", "c":"c"}`))
Expect(`{"a":"a", "b":"b", "c":"c"}`).ShouldNot(MatchJSON(`{"a":"a", "b":"b"}`))
Expect(`{"a":null, "b":null}`).ShouldNot(MatchJSON(`{"c":"c", "d":"d"}`))
Expect(`{"a":null, "b":null, "c":null}`).ShouldNot(MatchJSON(`{"a":null, "b":null, "d":null}`))
})
It("should work with byte arrays", func() {
Expect([]byte("{}")).Should(MatchJSON([]byte("{}")))
Expect("{}").Should(MatchJSON([]byte("{}")))
Expect([]byte("{}")).Should(MatchJSON("{}"))
})
It("should work with json.RawMessage", func() {
Expect([]byte(`{"a": 1}`)).Should(MatchJSON(json.RawMessage(`{"a": 1}`)))
})
})
Context("when a key mismatch is found", func() {
It("reports the first found mismatch", func() {
subject := MatchJSONMatcher{JSONToMatch: `5`}
actual := `7`
subject.Match(actual)
failureMessage := subject.FailureMessage(`7`)
Expect(failureMessage).ToNot(ContainSubstring("first mismatched key"))
subject = MatchJSONMatcher{JSONToMatch: `{"a": 1, "b.g": {"c": 2, "1": ["hello", "see ya"]}}`}
actual = `{"a": 1, "b.g": {"c": 2, "1": ["hello", "goodbye"]}}`
subject.Match(actual)
failureMessage = subject.FailureMessage(actual)
Expect(failureMessage).To(ContainSubstring(`first mismatched key: "b.g"."1"[1]`))
})
})
Context("when the expected is not valid JSON", func() {
It("should error and explain why", func() {
success, err := (&MatchJSONMatcher{JSONToMatch: `{}`}).Match(`oops`)
Expect(success).Should(BeFalse())
Expect(err).Should(HaveOccurred())
Expect(err.Error()).Should(ContainSubstring("Actual 'oops' should be valid JSON"))
})
})
Context("when the actual is not valid JSON", func() {
It("should error and explain why", func() {
success, err := (&MatchJSONMatcher{JSONToMatch: `oops`}).Match(`{}`)
Expect(success).Should(BeFalse())
Expect(err).Should(HaveOccurred())
Expect(err.Error()).Should(ContainSubstring("Expected 'oops' should be valid JSON"))
})
})
Context("when the expected is neither a string nor a stringer nor a byte array", func() {
It("should error", func() {
success, err := (&MatchJSONMatcher{JSONToMatch: 2}).Match("{}")
Expect(success).Should(BeFalse())
Expect(err).Should(HaveOccurred())
Expect(err.Error()).Should(ContainSubstring("MatchJSONMatcher matcher requires a string, stringer, or []byte. Got expected:\n <int>: 2"))
success, err = (&MatchJSONMatcher{JSONToMatch: nil}).Match("{}")
Expect(success).Should(BeFalse())
Expect(err).Should(HaveOccurred())
Expect(err.Error()).Should(ContainSubstring("MatchJSONMatcher 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 := (&MatchJSONMatcher{JSONToMatch: "{}"}).Match(2)
Expect(success).Should(BeFalse())
Expect(err).Should(HaveOccurred())
Expect(err.Error()).Should(ContainSubstring("MatchJSONMatcher matcher requires a string, stringer, or []byte. Got actual:\n <int>: 2"))
success, err = (&MatchJSONMatcher{JSONToMatch: "{}"}).Match(nil)
Expect(success).Should(BeFalse())
Expect(err).Should(HaveOccurred())
Expect(err.Error()).Should(ContainSubstring("MatchJSONMatcher matcher requires a string, stringer, or []byte. Got actual:\n <nil>: nil"))
})
})
})
|
