add tests for problem 657. Judge Route Circle

Author: obalunenko

judge_route_circle/judge_circle_test.go

@@ -0,0 +1,103 @@
+package judge_route_circle
+
+import (
+	"fmt"
+	"testing"
+)
+
+type TestCase struct {
+	id             int
+	description    string
+	input          Input
+	expectedResult ExpectedResult
+}
+
+type Input struct {
+	moves string
+}
+
+type ExpectedResult struct {
+	circle bool
+}
+
+type TestSuite []TestCase
+
+var ts = TestSuite{
+	TestCase{
+		id:          1,
+		description: "test case from task - returned to start",
+		input: Input{
+			moves: "UD",
+		},
+		expectedResult: ExpectedResult{
+			circle: true,
+		},
+	},
+	TestCase{
+		id:          2,
+		description: "test case from task - not returned to start",
+		input: Input{
+			moves: "LL",
+		},
+		expectedResult: ExpectedResult{
+			circle: false,
+		},
+	},
+	TestCase{
+		id:          3,
+		description: "Not returned to start",
+		input: Input{
+			moves: "ULUUDRLD",
+		},
+		expectedResult: ExpectedResult{
+			circle: false,
+		},
+	},
+	TestCase{
+		id:          4,
+		description: "Not returned to start on y",
+		input: Input{
+			moves: "ULUDUDRLD",
+		},
+		expectedResult: ExpectedResult{
+			circle: false,
+		},
+	},
+	TestCase{
+		id:          5,
+		description: "Not returned to start on x",
+		input: Input{
+			moves: "ULUUDRLDR",
+		},
+		expectedResult: ExpectedResult{
+			circle: false,
+		},
+	},
+	TestCase{
+		id:          6,
+		description: "Returned to start after Long walk",
+		input: Input{
+			moves: "ULUUDRLDRD",
+		},
+		expectedResult: ExpectedResult{
+			circle: true,
+		},
+	},
+}
+
+func TestHamming(t *testing.T) {
+
+	for _, tc := range ts {
+		t.Run(fmt.Sprintf("Test%d", tc.id), func(t *testing.T) {
+
+			actualResult := judgeCircle(tc.input.moves)
+
+			if actualResult != tc.expectedResult.circle {
+				fmt.Printf(" - Got: %v\n - Expected: %v\n", actualResult, tc.expectedResult.circle)
+				t.Fail()
+			}
+
+		})
+	}
+
+}

judge_route_circle/main.go

@@ -0,0 +1,8 @@
+package judge_route_circle
+
+func judgeCircle(moves string) bool {
+	var result bool
+
+	return result
+
+}

judge_route_circle/spec.md

@@ -0,0 +1,21 @@
+657 Judge Route Circle
+https://leetcode.com/problems/judge-route-circle/description/
+
+Initially, there is a Robot at position (0, 0). Given a sequence of its moves, 
+judge if this robot makes a circle, which means it moves back to the original place.
+
+The move sequence is represented by a string. And each move is represent by a character. 
+The valid robot moves are R (Right), L (Left), U (Up) and D (down). 
+The output should be true or false representing whether the robot makes a circle.
+
+Example 1:
+```
+Input: "UD"
+Output: true
+```
+
+Example 2:
+```
+Input: "LL"
+Output: false
+```