Dev

jest.config.ts

@@ -0,0 +1,15 @@
+module.exports = {
+  preset: 'ts-jest',
+  testEnvironment: 'node',
+};
+import type { JestConfigWithTsJest } from 'ts-jest';
+
+const config: JestConfigWithTsJest = {
+  preset: 'ts-jest',
+  testEnvironment: 'node',
+  testMatch: [
+    "**/test/**/*.test.ts"
+  ]
+};
+
+export default config;

modules/ecs6-class/line.ts

@@ -32,19 +32,18 @@ export default class Line {
     }
 
 
-    getPointByX(x: number) {
-        if (this.slope && this.n) {
-            let y = this.slope * x + this.n
-            return new Point({ x, y })
-        }
+
+getPointByX(x: number) {
+    if (this.slope !== undefined && this.n !== undefined) {
+        let y = this.slope * x + this.n;
+        return new Point({ x, y });
     }
+}
 
-    getPointByY(y: number) {
-        if (this.slope && this.n) {
-            let x = (y - this.n) / this.slope;
-            return new Point({ x, y })
-        }
+getPointByY(y: number) {
+    if (this.slope !== undefined && this.n !== undefined) {
+        let x = (y - this.n) / this.slope;
+        return new Point({ x, y });
     }
-
-
+}
 }

modules/geometry-calculation.ts

@@ -3,39 +3,40 @@ import Point from './ecs6-class/point';
 
 export const calculateDistance = (point1: Point, point2: Point): number => {
     let distanceX = (point2.x - point1.x) ** 2;
-    let distanceY = (point2.y - point2.y) ** 2;
+    let distanceY = (point2.y - point1.y) ** 2;
     const distance = Math.sqrt(distanceX + distanceY);
     return distance;
 }
 
-export const calculateJunctionPoint = (line1: Line, line2: Line): Boolean | Point | undefined => {
-    if (line1.slope === line2.slope) {
-        if (line1.n === line2.n) {
-            return true
-        }
-        else {
-            return false
-        }
-    }
-    else {
-        if (line1.n !== undefined && line1.slope !== undefined && line2.n !== undefined && line2.slope !== undefined) {
-            const x = (line1.n - line2.n) / (line2.slope - line1.slope)
-            const junctionPoint = line1.getPointByX(x);
-            return junctionPoint
-        }
+
+
+export const calculateJunctionPoint = (line1: Line, line2: Line): boolean | Point | undefined => {
+    if (line1.slope === undefined || line2.slope === undefined || line1.n === undefined || line2.n === undefined) {
+        return undefined;
     }
-}
 
-export const isPointOnLine = (line: Line, point: Point): Boolean => {
-    const proxyLine = new Line({ point1: line.point1, point2: point })
-    proxyLine.calculateSlope()
-    if (line.slope === proxyLine.slope) {
-        proxyLine.calculateNOfLineFunction()
-        if (line.n === proxyLine.n) {
-            return true
-        }
+
+    if (line1.slope === line2.slope && line1.n === line2.n) {
+        return true; 
     }
-    return false
-}
 
+
+    if (line1.slope === line2.slope) {
+        return false; 
+    }
 
+
+    const x = (line1.n - line2.n) / (line2.slope - line1.slope);
+    const y = line1.slope * x + line1.n;
+    const junctionPoint = new Point({x, y});
+    return junctionPoint; 
+};
+export const isPointOnLine = (line: Line, point: Point): boolean => {
+    const proxyLine = new Line({ point1: line.point1, point2: point });
+    proxyLine.calculateSlope();
+    if (line.slope === proxyLine.slope) {
+        proxyLine.calculateNOfLineFunction();
+        return line.n === proxyLine.n;
+    }
+    return false;
+     };

package.json

@@ -4,7 +4,9 @@
   "description": "",
   "main": "index.js",
   "scripts": {
-    "test": "jest"
+    "test": "jest",
+    "coverage": "jest --coverage"
+
   },
   "repository": {
     "type": "git",
@@ -22,6 +24,7 @@
   "devDependencies": {
     "@types/jest": "^30.0.0",
     "jest": "^30.0.4",
+    "ts-jest": "^29.4.0",
     "ts-node": "^10.9.2",
     "typescript": "^5.8.3"
   }