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package matchers_test
import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
. "github.com/onsi/gomega/matchers"
)
var _ = Describe("ContainElement", func() {
Context("when passed a supported type", func() {
Context("and expecting a non-matcher", func() {
It("should do the right thing", func() {
Ω([2]int{1, 2}).Should(ContainElement(2))
Ω([2]int{1, 2}).ShouldNot(ContainElement(3))
Ω([]int{1, 2}).Should(ContainElement(2))
Ω([]int{1, 2}).ShouldNot(ContainElement(3))
Ω(map[string]int{"foo": 1, "bar": 2}).Should(ContainElement(2))
Ω(map[int]int{3: 1, 4: 2}).ShouldNot(ContainElement(3))
arr := make([]myCustomType, 2)
arr[0] = myCustomType{s: "foo", n: 3, f: 2.0, arr: []string{"a", "b"}}
arr[1] = myCustomType{s: "foo", n: 3, f: 2.0, arr: []string{"a", "c"}}
Ω(arr).Should(ContainElement(myCustomType{s: "foo", n: 3, f: 2.0, arr: []string{"a", "b"}}))
Ω(arr).ShouldNot(ContainElement(myCustomType{s: "foo", n: 3, f: 2.0, arr: []string{"b", "c"}}))
})
})
Context("and expecting a matcher", func() {
It("should pass each element through the matcher", func() {
Ω([]int{1, 2, 3}).Should(ContainElement(BeNumerically(">=", 3)))
Ω([]int{1, 2, 3}).ShouldNot(ContainElement(BeNumerically(">", 3)))
Ω(map[string]int{"foo": 1, "bar": 2}).Should(ContainElement(BeNumerically(">=", 2)))
Ω(map[string]int{"foo": 1, "bar": 2}).ShouldNot(ContainElement(BeNumerically(">", 2)))
})
It("should power through even if the matcher ever fails", func() {
Ω([]interface{}{1, 2, "3", 4}).Should(ContainElement(BeNumerically(">=", 3)))
})
It("should fail if the matcher fails", func() {
actual := []interface{}{1, 2, "3", "4"}
success, err := (&ContainElementMatcher{Element: BeNumerically(">=", 3)}).Match(actual)
Ω(success).Should(BeFalse())
Ω(err).Should(HaveOccurred())
})
})
})
Context("when passed a correctly typed nil", func() {
It("should operate succesfully on the passed in value", func() {
var nilSlice []int
Ω(nilSlice).ShouldNot(ContainElement(1))
var nilMap map[int]string
Ω(nilMap).ShouldNot(ContainElement("foo"))
})
})
Context("when passed an unsupported type", func() {
It("should error", func() {
success, err := (&ContainElementMatcher{Element: 0}).Match(0)
Ω(success).Should(BeFalse())
Ω(err).Should(HaveOccurred())
success, err = (&ContainElementMatcher{Element: 0}).Match("abc")
Ω(success).Should(BeFalse())
Ω(err).Should(HaveOccurred())
success, err = (&ContainElementMatcher{Element: 0}).Match(nil)
Ω(success).Should(BeFalse())
Ω(err).Should(HaveOccurred())
})
})
})
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