added cypress and connection to DB

Author: Xvier

cypress.config.js

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+const { defineConfig } = require("cypress");
+const clientConfig = require('./cypress/support/clientconfig');
+const { Client } = require('pg')
+
+module.exports = defineConfig({
+  e2e: {
+    setupNodeEvents(on, config) {
+      on("task", {
+        async connectDB(query) {
+           const client = new Client(clientConfig)
+           await client.connect()
+           const res = await client.query(query)
+           await client.end()
+           return res.rows;
+         }
+       })
+    },
+  },
+});

cypress/e2e/postgres.cy.js

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+describe('empty spec', () => {
+  it('passes', () => {
+    cy.task('connectDB','SELECT NOW()').then((res)=>{
+      cy.log(res[0].now);
+    })
+  })
+})

cypress/fixtures/example.json

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+{
+  "name": "Using fixtures to represent data",
+  "email": "[email protected]",
+  "body": "Fixtures are a great way to mock data for responses to routes"
+}

cypress/support/clientconfig.js

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+var config = {
+    user: "cypress_admin",
+    password: "cypressrules",
+    host: "localhost",
+    database: "cypress",
+    ssl: false,
+    port: 5432
+}
+
+module.exports = config;

cypress/support/commands.js

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+// ***********************************************
+// This example commands.js shows you how to
+// create various custom commands and overwrite
+// existing commands.
+//
+// For more comprehensive examples of custom
+// commands please read more here:
+// https://on.cypress.io/custom-commands
+// ***********************************************
+//
+//
+// -- This is a parent command --
+// Cypress.Commands.add('login', (email, password) => { ... })
+//
+//
+// -- This is a child command --
+// Cypress.Commands.add('drag', { prevSubject: 'element'}, (subject, options) => { ... })
+//
+//
+// -- This is a dual command --
+// Cypress.Commands.add('dismiss', { prevSubject: 'optional'}, (subject, options) => { ... })
+//
+//
+// -- This will overwrite an existing command --
+// Cypress.Commands.overwrite('visit', (originalFn, url, options) => { ... })

cypress/support/e2e.js

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+// ***********************************************************
+// This example support/e2e.js is processed and
+// loaded automatically before your test files.
+//
+// This is a great place to put global configuration and
+// behavior that modifies Cypress.
+//
+// You can change the location of this file or turn off
+// automatically serving support files with the
+// 'supportFile' configuration option.
+//
+// You can read more here:
+// https://on.cypress.io/configuration
+// ***********************************************************
+
+// Import commands.js using ES2015 syntax:
+import './commands'
+
+// Alternatively you can use CommonJS syntax:
+// require('./commands')