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package matchers_test
import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
. "github.com/onsi/gomega/matchers"
)
var _ = Describe("BeEmpty", func() {
Context("when passed a supported type", func() {
It("should do the right thing", func() {
Expect("").Should(BeEmpty())
Expect(" ").ShouldNot(BeEmpty())
Expect([0]int{}).Should(BeEmpty())
Expect([1]int{1}).ShouldNot(BeEmpty())
Expect([]int{}).Should(BeEmpty())
Expect([]int{1}).ShouldNot(BeEmpty())
Expect(map[string]int{}).Should(BeEmpty())
Expect(map[string]int{"a": 1}).ShouldNot(BeEmpty())
c := make(chan bool, 1)
Expect(c).Should(BeEmpty())
c <- true
Expect(c).ShouldNot(BeEmpty())
})
})
Context("when passed a correctly typed nil", func() {
It("should be true", func() {
var nilSlice []int
Expect(nilSlice).Should(BeEmpty())
var nilMap map[int]string
Expect(nilMap).Should(BeEmpty())
})
})
Context("when passed an unsupported type", func() {
It("should error", func() {
success, err := (&BeEmptyMatcher{}).Match(0)
Expect(success).Should(BeFalse())
Expect(err).Should(HaveOccurred())
success, err = (&BeEmptyMatcher{}).Match(nil)
Expect(success).Should(BeFalse())
Expect(err).Should(HaveOccurred())
})
})
})
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