1 package matchers_test
2
3 import (
4 . "github.com/onsi/ginkgo/v2"
5 . "github.com/onsi/gomega"
6 . "github.com/onsi/gomega/matchers"
7 )
8
9 var _ = Describe("HaveCap", func() {
10 When("passed a supported type", func() {
11 It("should do the right thing", func() {
12 Expect([0]int{}).Should(HaveCap(0))
13 Expect([2]int{1}).Should(HaveCap(2))
14
15 Expect([]int{}).Should(HaveCap(0))
16 Expect([]int{1, 2, 3, 4, 5}[:2]).Should(HaveCap(5))
17 Expect(make([]int, 0, 5)).Should(HaveCap(5))
18
19 c := make(chan bool, 3)
20 Expect(c).Should(HaveCap(3))
21 c <- true
22 c <- true
23 Expect(c).Should(HaveCap(3))
24
25 Expect(make(chan bool)).Should(HaveCap(0))
26 })
27 })
28
29 When("passed a correctly typed nil", func() {
30 It("should operate succesfully on the passed in value", func() {
31 var nilSlice []int
32 Expect(nilSlice).Should(HaveCap(0))
33
34 var nilChan chan int
35 Expect(nilChan).Should(HaveCap(0))
36 })
37 })
38
39 When("passed an unsupported type", func() {
40 It("should error", func() {
41 success, err := (&HaveCapMatcher{Count: 0}).Match(0)
42 Expect(success).Should(BeFalse())
43 Expect(err).Should(HaveOccurred())
44
45 success, err = (&HaveCapMatcher{Count: 0}).Match(nil)
46 Expect(success).Should(BeFalse())
47 Expect(err).Should(HaveOccurred())
48 })
49 })
50 })
51
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