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package matchers_test
import (
"errors"
"strings"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
. "github.com/onsi/gomega/matchers"
)
var _ = Describe("Equal", func() {
Context("when asserting that nil equals nil", func() {
It("should error", func() {
success, err := (&EqualMatcher{Expected: nil}).Match(nil)
Ω(success).Should(BeFalse())
Ω(err).Should(HaveOccurred())
})
})
Context("When asserting equality between objects", func() {
It("should do the right thing", func() {
Ω(5).Should(Equal(5))
Ω(5.0).Should(Equal(5.0))
Ω(5).ShouldNot(Equal("5"))
Ω(5).ShouldNot(Equal(5.0))
Ω(5).ShouldNot(Equal(3))
Ω("5").Should(Equal("5"))
Ω([]int{1, 2}).Should(Equal([]int{1, 2}))
Ω([]int{1, 2}).ShouldNot(Equal([]int{2, 1}))
Ω(map[string]string{"a": "b", "c": "d"}).Should(Equal(map[string]string{"a": "b", "c": "d"}))
Ω(map[string]string{"a": "b", "c": "d"}).ShouldNot(Equal(map[string]string{"a": "b", "c": "e"}))
Ω(errors.New("foo")).Should(Equal(errors.New("foo")))
Ω(errors.New("foo")).ShouldNot(Equal(errors.New("bar")))
Ω(myCustomType{s: "foo", n: 3, f: 2.0, arr: []string{"a", "b"}}).Should(Equal(myCustomType{s: "foo", n: 3, f: 2.0, arr: []string{"a", "b"}}))
Ω(myCustomType{s: "foo", n: 3, f: 2.0, arr: []string{"a", "b"}}).ShouldNot(Equal(myCustomType{s: "bar", n: 3, f: 2.0, arr: []string{"a", "b"}}))
Ω(myCustomType{s: "foo", n: 3, f: 2.0, arr: []string{"a", "b"}}).ShouldNot(Equal(myCustomType{s: "foo", n: 2, f: 2.0, arr: []string{"a", "b"}}))
Ω(myCustomType{s: "foo", n: 3, f: 2.0, arr: []string{"a", "b"}}).ShouldNot(Equal(myCustomType{s: "foo", n: 3, f: 3.0, arr: []string{"a", "b"}}))
Ω(myCustomType{s: "foo", n: 3, f: 2.0, arr: []string{"a", "b"}}).ShouldNot(Equal(myCustomType{s: "foo", n: 3, f: 2.0, arr: []string{"a", "b", "c"}}))
})
})
Describe("failure messages", func() {
It("shows the two strings simply when they are short", func() {
subject := EqualMatcher{Expected: "eric"}
failureMessage := subject.FailureMessage("tim")
Ω(failureMessage).To(BeEquivalentTo(expectedShortStringFailureMessage))
})
It("shows the exact point where two long strings differ", func() {
stringWithB := "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
stringWithZ := "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaazaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
subject := EqualMatcher{Expected: stringWithZ}
failureMessage := subject.FailureMessage(stringWithB)
Ω(failureMessage).To(BeEquivalentTo(expectedLongStringFailureMessage))
})
})
})
var expectedShortStringFailureMessage = strings.TrimSpace(`
Expected
<string>: tim
to equal
<string>: eric
`)
var expectedLongStringFailureMessage = strings.TrimSpace(`
Expected
<string>: "...aaaaabaaaaa..."
to equal |
<string>: "...aaaaazaaaaa..."
`)
|
