From f3db0df7b6962622816007a49ce7c5c39d887374 Mon Sep 17 00:00:00 2001
From: James Munnelly <james.munnelly@jetstack.io>
Date: Fri, 3 Nov 2017 23:58:25 +0000
Subject: [PATCH] Add RemoveDuplicates unit test

---
 pkg/util/filter_test.go | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 pkg/util/filter_test.go

diff --git a/pkg/util/filter_test.go b/pkg/util/filter_test.go
new file mode 100644
index 000000000..29a6e99ef
--- /dev/null
+++ b/pkg/util/filter_test.go
@@ -0,0 +1,36 @@
+package util
+
+import "testing"
+
+func TestRemoveDuplicates(t *testing.T) {
+	type testT struct {
+		input  []string
+		output []string
+	}
+	tests := []testT{
+		{
+			input:  []string{"a"},
+			output: []string{"a"},
+		},
+		{
+			input:  []string{"a", "b"},
+			output: []string{"a", "b"},
+		},
+		{
+			input:  []string{"a", "a"},
+			output: []string{"a"},
+		},
+		{
+			input:  []string{"a", "b", "a", "a", "c"},
+			output: []string{"a", "b", "c"},
+		},
+	}
+	for _, test := range tests {
+		actualOutput := RemoveDuplicates(test.input)
+		if len(actualOutput) != len(test.output) ||
+			!EqualUnsorted(test.output, actualOutput) {
+			t.Errorf("returned %q for %q but expected %q", actualOutput, test.input, test.output)
+			continue
+		}
+	}
+}