feature/874: add 874 solution

leetcode/0874.Walking-Robot-Simulation/Walking Robot Simulation_test.go

@@ -0,0 +1,39 @@
+package leetcode
+
+import "testing"
+
+func Test_robotSim(t *testing.T) {
+	type args struct {
+		commands  []int
+		obstacles [][]int
+	}
+	cases := []struct {
+		name string
+		args args
+		want int
+	}{
+		{
+			"case 1",
+			args{
+				commands:  []int{4, -1, 3},
+				obstacles: [][]int{{}},
+			},
+			25,
+		},
+		{
+			"case 2",
+			args{
+				commands:  []int{4, -1, 4, -2, 4},
+				obstacles: [][]int{{2, 4}},
+			},
+			65,
+		},
+	}
+	for _, tt := range cases {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := robotSim(tt.args.commands, tt.args.obstacles); got != tt.want {
+				t.Errorf("robotSim() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}