Add: test case

Author: openset

problems/3sum-closest/3sum_closest_test.go

@@ -15,6 +15,26 @@ func TestThreeSumClosest(t *testing.T) {
 			target:   1,
 			expected: 2,
 		},
+		{
+			input:    []int{-1, 0, 1, 2, -1, -4},
+			target:   1,
+			expected: 1,
+		},
+		{
+			input:    []int{0, 0, 0, 0},
+			target:   1,
+			expected: 0,
+		},
+		{
+			input:    []int{-2, 0, 0, 2, 2, 2},
+			target:   2,
+			expected: 2,
+		},
+		{
+			input:    []int{-2, 0, 0, 2, 2, 2, 2},
+			target:   1,
+			expected: 0,
+		},
 	}
 	for _, tc := range tests {
 		output := threeSumClosest(tc.input, tc.target)