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Add unit tests in cidr package to increase coverage #3317

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Add unit tests in cidr package to increase coverage #3317

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44 changes: 42 additions & 2 deletions pkg/cidr/cidr_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -33,8 +33,11 @@ func TestCidr(t *testing.T) {
}

const (
ipV4CIDR = "1.2.3.4/16"
ipV6CIDR = "2002::1234:abcd:ffff:c0a8:101/64"
ipV4CIDR = "1.2.3.4/16"
overlappingCIDR = "1.2.3.5/16"
ipV4CIDR2 = "5.6.7.8/16"
ipV4CIDR3 = "9.10.11.12/16"
ipV6CIDR = "2002::1234:abcd:ffff:c0a8:101/64"
)

var _ = Describe("ExtractIPFamilies", func() {
Expand All @@ -47,3 +50,40 @@ var _ = Describe("ExtractIPFamilies", func() {
Expect(cidr.ExtractIPFamilies([]string{"bogus"})).To(BeEmpty())
})
})

var _ = Describe("ExtractIPv4Subnets", func() {
It("should return the correct subnets", func() {
Expect(cidr.ExtractIPv4Subnets([]string{ipV4CIDR, ipV6CIDR})).To(Equal([]string{ipV4CIDR}))
Expect(cidr.ExtractIPv4Subnets([]string{ipV4CIDR, ipV4CIDR2})).To(Equal([]string{ipV4CIDR, ipV4CIDR2}))
Expect(cidr.ExtractIPv4Subnets([]string{})).To(BeEmpty())
})
})

var _ = Describe("IsOverlapping", func() {
It("should return the correct results", func() {
Expect(cidr.IsOverlapping([]string{ipV4CIDR, ipV6CIDR}, ipV4CIDR2)).To(BeFalse())
Expect(cidr.IsOverlapping([]string{}, ipV4CIDR)).To(BeFalse())

Expect(cidr.IsOverlapping([]string{ipV4CIDR}, overlappingCIDR)).To(BeTrue())
Expect(cidr.IsOverlapping([]string{overlappingCIDR}, ipV4CIDR)).To(BeTrue())

_, err := cidr.IsOverlapping([]string{"bogus"}, ipV4CIDR)
Expect(err).To(HaveOccurred())

_, err = cidr.IsOverlapping([]string{ipV4CIDR}, "bogus")
Expect(err).To(HaveOccurred())
})
})

var _ = Describe("OverlappingSubnets", func() {
It("should return the correct result", func() {
Expect(cidr.OverlappingSubnets([]string{ipV4CIDR}, []string{ipV4CIDR2}, []string{ipV4CIDR3})).To(Succeed())
Expect(cidr.OverlappingSubnets([]string{ipV4CIDR, ipV4CIDR2}, []string{}, []string{ipV4CIDR3})).To(Succeed())
Expect(cidr.OverlappingSubnets([]string{}, []string{ipV4CIDR, ipV4CIDR2}, []string{ipV4CIDR3})).To(Succeed())
Expect(cidr.OverlappingSubnets([]string{"bogus"}, []string{"bogus"}, []string{ipV4CIDR3})).To(Succeed())

Expect(cidr.OverlappingSubnets([]string{ipV4CIDR}, []string{ipV4CIDR2}, []string{overlappingCIDR})).ToNot(Succeed())
Expect(cidr.OverlappingSubnets([]string{ipV4CIDR2}, []string{ipV4CIDR}, []string{overlappingCIDR})).ToNot(Succeed())
Expect(cidr.OverlappingSubnets([]string{ipV4CIDR2, ipV4CIDR}, []string{ipV4CIDR3}, []string{overlappingCIDR})).ToNot(Succeed())
})
})
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