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package matchers_test
import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
. "github.com/onsi/gomega/matchers"
)
var _ = Describe("HaveCap", func() {
Context("when passed a supported type", func() {
It("should do the right thing", func() {
Ω([0]int{}).Should(HaveCap(0))
Ω([2]int{1}).Should(HaveCap(2))
Ω([]int{}).Should(HaveCap(0))
Ω([]int{1, 2, 3, 4, 5}[:2]).Should(HaveCap(5))
Ω(make([]int, 0, 5)).Should(HaveCap(5))
c := make(chan bool, 3)
Ω(c).Should(HaveCap(3))
c <- true
c <- true
Ω(c).Should(HaveCap(3))
Ω(make(chan bool)).Should(HaveCap(0))
})
})
Context("when passed a correctly typed nil", func() {
It("should operate succesfully on the passed in value", func() {
var nilSlice []int
Ω(nilSlice).Should(HaveCap(0))
var nilChan chan int
Ω(nilChan).Should(HaveCap(0))
})
})
Context("when passed an unsupported type", func() {
It("should error", func() {
success, err := (&HaveCapMatcher{Count: 0}).Match(0)
Ω(success).Should(BeFalse())
Ω(err).Should(HaveOccurred())
success, err = (&HaveCapMatcher{Count: 0}).Match(nil)
Ω(success).Should(BeFalse())
Ω(err).Should(HaveOccurred())
})
})
})
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