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package matchers_test
import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
. "github.com/onsi/gomega/matchers"
)
var _ = Describe("HaveKey", func() {
var (
stringKeys map[string]int
intKeys map[int]string
objKeys map[*myCustomType]string
customA *myCustomType
customB *myCustomType
)
BeforeEach(func() {
stringKeys = map[string]int{"foo": 2, "bar": 3}
intKeys = map[int]string{2: "foo", 3: "bar"}
customA = &myCustomType{s: "a", n: 2, f: 2.3, arr: []string{"ice", "cream"}}
customB = &myCustomType{s: "b", n: 4, f: 3.1, arr: []string{"cake"}}
objKeys = map[*myCustomType]string{customA: "aardvark", customB: "kangaroo"}
})
Context("when passed a map", func() {
It("should do the right thing", func() {
Expect(stringKeys).Should(HaveKey("foo"))
Expect(stringKeys).ShouldNot(HaveKey("baz"))
Expect(intKeys).Should(HaveKey(2))
Expect(intKeys).ShouldNot(HaveKey(4))
Expect(objKeys).Should(HaveKey(customA))
Expect(objKeys).Should(HaveKey(&myCustomType{s: "b", n: 4, f: 3.1, arr: []string{"cake"}}))
Expect(objKeys).ShouldNot(HaveKey(&myCustomType{s: "b", n: 4, f: 3.1, arr: []string{"apple", "pie"}}))
})
})
Context("when passed a correctly typed nil", func() {
It("should operate succesfully on the passed in value", func() {
var nilMap map[int]string
Expect(nilMap).ShouldNot(HaveKey("foo"))
})
})
Context("when the passed in key is actually a matcher", func() {
It("should pass each element through the matcher", func() {
Expect(stringKeys).Should(HaveKey(ContainSubstring("oo")))
Expect(stringKeys).ShouldNot(HaveKey(ContainSubstring("foobar")))
})
It("should fail if the matcher ever fails", func() {
actual := map[int]string{1: "a", 3: "b", 2: "c"}
success, err := (&HaveKeyMatcher{Key: ContainSubstring("ar")}).Match(actual)
Expect(success).Should(BeFalse())
Expect(err).Should(HaveOccurred())
})
})
Context("when passed something that is not a map", func() {
It("should error", func() {
success, err := (&HaveKeyMatcher{Key: "foo"}).Match([]string{"foo"})
Expect(success).Should(BeFalse())
Expect(err).Should(HaveOccurred())
success, err = (&HaveKeyMatcher{Key: "foo"}).Match(nil)
Expect(success).Should(BeFalse())
Expect(err).Should(HaveOccurred())
})
})
})
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