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package matchers_test
import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
. "github.com/onsi/gomega/matchers"
)
var _ = Describe("AssignableToTypeOf", func() {
Context("When asserting assignability between types", func() {
It("should do the right thing", func() {
Expect(0).Should(BeAssignableToTypeOf(0))
Expect(5).Should(BeAssignableToTypeOf(-1))
Expect("foo").Should(BeAssignableToTypeOf("bar"))
Expect(struct{ Foo string }{}).Should(BeAssignableToTypeOf(struct{ Foo string }{}))
Expect(0).ShouldNot(BeAssignableToTypeOf("bar"))
Expect(5).ShouldNot(BeAssignableToTypeOf(struct{ Foo string }{}))
Expect("foo").ShouldNot(BeAssignableToTypeOf(42))
})
})
Context("When asserting nil values", func() {
It("should error", func() {
success, err := (&AssignableToTypeOfMatcher{Expected: nil}).Match(nil)
Expect(success).Should(BeFalse())
Expect(err).Should(HaveOccurred())
})
Context("When actual is nil and expected is not nil", func() {
It("should return false without error", func() {
success, err := (&AssignableToTypeOfMatcher{Expected: 17}).Match(nil)
Expect(success).Should(BeFalse())
Expect(err).ShouldNot(HaveOccurred())
})
})
Context("When actual is not nil and expected is nil", func() {
It("should error", func() {
success, err := (&AssignableToTypeOfMatcher{Expected: nil}).Match(17)
Expect(success).Should(BeFalse())
Expect(err).Should(HaveOccurred())
})
})
})
})
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