Use variadic arguments in ProtoSliceContains (#24)

Author: afritzler

matchers.go

@@ -248,7 +248,7 @@ func (matcher *ProtoSliceContainsMatcher) NegatedFailureMessage(actual interface
 //	Expect(items).To(ProtoSliceContains(expected)) // Passes
 //	missing := []proto.Message{&v1.Foo{Bar: "test1"}}
 //	Expect(missing).ToNot(ProtoSliceContains(expected)) // Passes
-func ProtoSliceContains(elements []proto.Message) types.GomegaMatcher {
+func ProtoSliceContains(elements ...proto.Message) types.GomegaMatcher {
 	return &ProtoSliceContainsMatcher{
 		Elements: elements,
 	}

matchers_test.go

@@ -480,9 +480,9 @@ func TestProtoSliceContainsMatcher(t *testing.T) {
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
 			if tc.shouldMatch {
-				g.Expect(tc.actual).To(matchers.ProtoSliceContains(tc.elements))
+				g.Expect(tc.actual).To(matchers.ProtoSliceContains(tc.elements...))
 			} else {
-				g.Expect(tc.actual).ToNot(matchers.ProtoSliceContains(tc.elements))
+				g.Expect(tc.actual).ToNot(matchers.ProtoSliceContains(tc.elements...))
 			}
 		})
 	}