[test] added unit test for array-minimum-distance

array-minimum-distance/array-minimum-distance_test.go

@@ -0,0 +1,58 @@
+// ====================================================
+// Data-Structures-with-Go Copyright(C) 2017 Furkan Türkal
+// This program comes with ABSOLUTELY NO WARRANTY; This is free software,
+// and you are welcome to redistribute it under certain conditions; See
+// file LICENSE, which is part of this source code package, for details.
+// ====================================================
+
+package main
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestAbs(t *testing.T) {
+	var testDatas = []struct {
+		Input  int
+		Output int
+	}{
+		{1, 1},
+		{7, 7},
+		{-1, 1},
+		{-7, 7},
+		{0, 0},
+	}
+	for _, data := range testDatas {
+		expected := data.Output
+		actual := Abs(data.Input)
+
+		if !reflect.DeepEqual(expected, actual) {
+			t.Errorf("Abs: Expected: %d, Actual: %d", expected, actual)
+		}
+
+	}
+}
+
+func TestMinDist(t *testing.T) {
+	var testDatas = []struct {
+		Array    []int
+		Num1     int
+		Num2     int
+		Distance int
+	}{
+		{[]int{3, 4, 5, 6}, 3, 6, 3},
+		{[]int{1, 2, 3}, 1, 3, 2},
+		{[]int{9, 7, 5, 3, 1}, 1, 7, 3},
+		{[]int{-1, -7, 5, 5, 1, 5}, -1, 5, 2},
+		{[]int{-1, -7, 5, 5, -7, -1}, -1, -7, 1},
+	}
+	for _, data := range testDatas {
+		expected := data.Distance
+		actual := minDist(data.Array, len(data.Array), data.Num1, data.Num2)
+
+		if !reflect.DeepEqual(expected, actual) {
+			t.Errorf("MinDist: Expected: %d, Actual: %d", expected, actual)
+		}
+	}
+}