use go module for dependencies (#594)

common/test/slice.go

@@ -0,0 +1,34 @@
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package test
+
+import "sort"
+
+// UnsortedStringSliceEqual returns true if the slices have same length & elements.
+// Does not modify the given slice.
+func UnsortedStringSliceEqual(first, second []string) bool {
+	if len(first) != len(second) {
+		return false
+	}
+
+	a, b := first[:], second[:]
+	sort.Strings(a)
+	sort.Strings(b)
+	for i := range a {
+		if a[i] != b[i] {
+			return false
+		}
+	}
+
+	return true
+}