Added Cypress E2E test and Postman collection

cypress/support/saucedemo-purchase.spec.js

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+/// <reference types="cypress" />
+
+describe('SauceDemo Purchase Flow', () => {
+  beforeEach(() => {
+    // Visit the SauceDemo site before each test
+    cy.visit('https://www.saucedemo.com/');
+  });
+
+  it('should complete a purchase successfully', () => {
+    // ---- Step 1: Log in ----
+    // Using standard demo credentials from the official site
+    cy.get('[data-test="username"]').type('standard_user');
+    cy.get('[data-test="password"]').type('secret_sauce');
+    cy.get('[data-test="login-button"]').click();
+
+    // Assertion: Check if redirected to inventory page
+    cy.url().should('include', '/inventory.html');
+    cy.get('.title').should('have.text', 'Products');
+
+    // ---- Step 2: Sort items by price (low to high) ----
+    cy.get('[data-test="product-sort-container"]').select('Price (low to high)');
+    // Verify sorting dropdown works
+    cy.get('[data-test="product-sort-container"]').should('have.value', 'lohi');
+
+    // ---- Step 3: Add at least one item to the cart ----
+    cy.get('.inventory_item').first().within(() => {
+      cy.get('button').click(); // Click "Add to cart"
+    });
+
+    // Assert cart badge shows 1 item
+    cy.get('.shopping_cart_badge').should('have.text', '1');
+
+    // ---- Step 4: Go to the cart and proceed to checkout ----
+    cy.get('.shopping_cart_link').click();
+    cy.url().should('include', '/cart.html');
+    cy.contains('Your Cart').should('be.visible');
+
+    cy.get('[data-test="checkout"]').click();
+
+    // ---- Step 5: Fill in checkout info ----
+    cy.get('[data-test="firstName"]').type('John');
+    cy.get('[data-test="lastName"]').type('Doe');
+    cy.get('[data-test="postalCode"]').type('12345');
+    cy.get('[data-test="continue"]').click();
+
+    // ---- Step 6: Review & Complete the purchase ----
+    cy.url().should('include', '/checkout-step-two.html');
+    cy.contains('Payment Information').should('be.visible');
+
+    cy.get('[data-test="finish"]').click();
+
+    // ---- Step 7: Assert that the order was successful ----
+    cy.url().should('include', '/checkout-complete.html');
+    cy.get('.complete-header').should('have.text', 'Thank you for your order!');
+    cy.get('.complete-text').should('contain', 'Your order has been dispatched');
+
+    // Optional: Verify back home button
+    cy.get('[data-test="back-to-products"]').should('be.visible');
+  });
+});

newman/project-env.postman_environment.json

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+{
+	"id": "1d4e505d-594b-4ac1-bf52-fabcae102b42",
+	"name": "jsonplaceholder-env",
+	"values": [
+		{
+			"key": "baseUrl",
+			"value": "",
+			"type": "default",
+			"description": "Base API endpoint",
+			"enabled": true
+		},
+		{
+			"key": "postId",
+			"value": "",
+			"type": "default",
+			"description": "Used to store dynamically created post ID",
+			"enabled": true
+		}
+	],
+	"_postman_variable_scope": "environment",
+	"_postman_exported_at": "2025-10-18T17:03:12.219Z",
+	"_postman_exported_using": "Postman/11.67.5-251017-0111"
+}

newman/project.postman_collection.json

@@ -0,0 +1,205 @@
+{
+	"info": {
+		"_postman_id": "9af4fb24-e51f-4df8-91a8-dc23c0cad94b",
+		"name": "jsonplaceholder.postman_collection.json",
+		"schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json",
+		"_exporter_id": "7368615"
+	},
+	"item": [
+		{
+			"name": "New Request",
+			"event": [
+				{
+					"listen": "prerequest",
+					"script": {
+						"exec": [
+							""
+						],
+						"type": "text/javascript",
+						"packages": {},
+						"requests": {}
+					}
+				},
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Status code is 200\", function () {",
+							"    pm.response.to.have.status(200);",
+							"});",
+							"",
+							"pm.test(\"Response should be an array with at least one post\", function () {",
+							"    const jsonData = pm.response.json();",
+							"    pm.expect(jsonData.length).to.be.above(0);",
+							"});"
+						],
+						"type": "text/javascript",
+						"packages": {},
+						"requests": {}
+					}
+				}
+			],
+			"request": {
+				"method": "GET",
+				"header": [],
+				"url": {
+					"raw": "{{baseUrl}}/posts",
+					"host": [
+						"{{baseUrl}}"
+					],
+					"path": [
+						"posts"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "New Request",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"const jsonData = pm.response.json();",
+							"",
+							"pm.test(\"Status code is 201 (Created)\", function () {",
+							"    pm.response.to.have.status(201);",
+							"});",
+							"",
+							"pm.test(\"Response contains title and id\", function () {",
+							"    pm.expect(jsonData).to.have.property('id');",
+							"    pm.expect(jsonData).to.have.property('title', 'My automated post');",
+							"});",
+							"",
+							"// Save the id for use in later requests",
+							"pm.environment.set(\"postId\", jsonData.id);"
+						],
+						"type": "text/javascript",
+						"packages": {},
+						"requests": {}
+					}
+				}
+			],
+			"request": {
+				"method": "POST",
+				"header": [],
+				"body": {
+					"mode": "raw",
+					"raw": "{\n  \"title\": \"My automated post\",\n  \"body\": \"This post was created via Postman + Newman test\",\n  \"userId\": 1\n}\n",
+					"options": {
+						"raw": {
+							"language": "json"
+						}
+					}
+				},
+				"url": {
+					"raw": "{{baseUrl}}/posts",
+					"host": [
+						"{{baseUrl}}"
+					],
+					"path": [
+						"posts"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "New Request",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Status code is 200\", () => {",
+							"    pm.response.to.have.status(200);",
+							"});",
+							"",
+							"pm.test(\"Title updated correctly\", () => {",
+							"    let jsonData = pm.response.json();",
+							"    pm.expect(jsonData.title).to.eql(\"Updated Title\");",
+							"});",
+							""
+						],
+						"type": "text/javascript",
+						"packages": {},
+						"requests": {}
+					}
+				},
+				{
+					"listen": "prerequest",
+					"script": {
+						"exec": [
+							""
+						],
+						"type": "text/javascript",
+						"packages": {},
+						"requests": {}
+					}
+				}
+			],
+			"request": {
+				"method": "PUT",
+				"header": [],
+				"body": {
+					"mode": "raw",
+					"raw": "{\n  \"id\": 1,\n  \"title\": \"Updated Title\",\n  \"body\": \"Updated body content\",\n  \"userId\": 1\n}",
+					"options": {
+						"raw": {
+							"language": "json"
+						}
+					}
+				},
+				"url": {
+					"raw": "{{baseUrl}}/posts/1",
+					"host": [
+						"{{baseUrl}}"
+					],
+					"path": [
+						"posts",
+						"1"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "New Request",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Status code is 200 (OK)\", function () {",
+							"    pm.response.to.have.status(200);",
+							"});",
+							"",
+							"pm.test(\"Response body is empty object\", function () {",
+							"    pm.expect(pm.response.text()).to.eql('{}');",
+							"});"
+						],
+						"type": "text/javascript",
+						"packages": {},
+						"requests": {}
+					}
+				}
+			],
+			"request": {
+				"method": "DELETE",
+				"header": [],
+				"url": {
+					"raw": "{{baseUrl}}/posts/{{postId}}",
+					"host": [
+						"{{baseUrl}}"
+					],
+					"path": [
+						"posts",
+						"{{postId}}"
+					]
+				}
+			},
+			"response": []
+		}
+	]
+}