Add initial end-to-end tests

cypress.json

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+{
+  "baseUrl": "https://next-auth-example.now.sh/"
+}

cypress/fixtures/example.json

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+{
+  "name": "Using fixtures to represent data",
+  "email": "hello@cypress.io",
+  "body": "Fixtures are a great way to mock data for responses to routes"
+}

cypress/integration/pages/signin.spec.js

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+// enables intelligent code completion for Cypress commands
+// https://on.cypress.io/intelligent-code-completion
+/// <reference types="Cypress" />
+
+describe("the sign in page", () => {
+  beforeEach(() => {
+    cy.visit("/api/auth/signin");
+  });
+  it("displays the configured provider sign in buttons", () => {
+    const providers = ["Email", "Google", "Facebook", "Twitter", "GitHub"];
+    providers.forEach((provider) => {
+      const isEmailProvider = provider == "Email";
+      const role = isEmailProvider ? "button" : "link";
+
+      cy.findByRole(role, { name: `Sign in with ${provider}` }).should(
+        "be.visible"
+      );
+
+      if (isEmailProvider) {
+        cy.findByLabelText("Email").should("be.visible");
+      }
+    });
+  });
+});

cypress/integration/pages/signout.spec.js

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+// enables intelligent code completion for Cypress commands
+// https://on.cypress.io/intelligent-code-completion
+/// <reference types="Cypress" />
+
+describe("the sign out page", () => {
+  beforeEach(() => {
+    cy.visit("/api/auth/signout");
+  });
+  it("displays the sign out button and descriptive text", () => {
+    cy.findByRole("button", { name: "Sign out" }).should("be.visible");
+
+    cy.findByText("Are you sure you want to sign out?").should("be.visible");
+  });
+});

cypress/integration/pages/verify-request.spec.js

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+// enables intelligent code completion for Cypress commands
+// https://on.cypress.io/intelligent-code-completion
+/// <reference types="Cypress" />
+
+describe("the email verification page", () => {
+  beforeEach(() => {
+    cy.visit("/api/auth/verify-request");
+  });
+
+  it("displays the call to action text", () => {
+    cy.findByText("Check your email").should("be.visible");
+    cy.findByText("A sign in link has been sent to your email address.").should(
+      "be.visible"
+    );
+  });
+
+  it("displays the call to action text", () => {
+    debugger;
+    cy.location("host").then((hostUrl) => {
+      cy.findByRole("link", { name: hostUrl }).should("be.visible");
+    });
+  });
+});

cypress/integration/workflows/email.spec.js

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+// enables intelligent code completion for Cypress commands
+// https://on.cypress.io/intelligent-code-completion
+/// <reference types="Cypress" />
+
+describe("Email authentication workflow", async () => {
+  beforeEach(() => {
+    cy.visit("/");
+    cy.findByRole("link", { name: "Sign in" }).click();
+    cy.location().should((loc) => {
+      expect(loc.pathname).to.eq("/api/auth/signin");
+    });
+  });
+  //   context("A valid email signup", () => {});
+  it("An invalid email is entered", () => {
+    cy.findByLabelText("Email").type("An invalid email");
+    cy.findByRole("button", { name: "Sign in with Email" }).click();
+
+    cy.location().should((loc) => {
+      expect(loc.pathname).to.eq("/api/auth/error");
+    });
+
+    cy.findByText("Sign in failed").should("be.visible");
+    cy.findByText("Unable to send email.").should("be.visible");
+    cy.findByRole("link", { name: "Sign in" }).should("be.visible");
+
+    cy.findByRole("link", { name: "Sign in" }).click();
+    cy.location().should((loc) => {
+      expect(loc.pathname).to.eq("/api/auth/signin");
+    });
+  });
+});

cypress/integration/workflows/providers.spec.js

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+/// <reference types="Cypress" />
+
+describe("Users can sign in with various providers", async () => {
+  beforeEach(() => {
+    cy.visit("/");
+    cy.findByRole("link", { name: "Sign in" }).click();
+    cy.location().should((loc) => {
+      expect(loc.pathname).to.eq("/api/auth/signin");
+    });
+  });
+  it("Signing in with Google", () => {
+    cy.findByRole("link", { name: "Sign in with Google" }).click();
+
+    cy.location().should((loc) => {
+      expect(loc.hostname).to.eq("https://accounts.google.com");
+      expect(loc.pathname).to.eq("/signin/oauth/oauthchooseaccount");
+    });
+  });
+  it("Signing in with Facebook", () => {
+    cy.findByRole("link", { name: "Sign in with Facebook" }).click();
+
+    cy.location().should((loc) => {
+      expect(loc.hostname).to.eq("www.facebook.com");
+      expect(loc.pathname).to.eq("/v7.0/dialog/oauth");
+    });
+  });
+  it("Signing in with Twitter", () => {
+    cy.findByRole("link", { name: "Sign in with Twitter" }).click();
+
+    cy.location().should((loc) => {
+      expect(loc.hostname).to.eq("api.twitter.com");
+      expect(loc.pathname).to.eq("/oauth/authenticate");
+    });
+  });
+  it("Signing in with GitHub", () => {
+    cy.findByRole("link", { name: "Sign in with GitHub" }).click();
+
+    cy.location().should((loc) => {
+      expect(loc.hostname).to.eq("github.com");
+      expect(loc.pathname).to.eq("/login/oauth/authorize");
+    });
+  });
+});

cypress/plugins/index.js

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+/// <reference types="cypress" />
+// ***********************************************************
+// This example plugins/index.js can be used to load plugins
+//
+// You can change the location of this file or turn off loading
+// the plugins file with the 'pluginsFile' configuration option.
+//
+// You can read more here:
+// https://on.cypress.io/plugins-guide
+// ***********************************************************
+
+// This function is called when a project is opened or re-opened (e.g. due to
+// the project's config changing)
+
+/**
+ * @type {Cypress.PluginConfig}
+ */
+module.exports = (on, config) => {
+  // `on` is used to hook into various events Cypress emits
+  // `config` is the resolved Cypress 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) => { ... })
+import "@testing-library/cypress/add-commands";

cypress/support/index.js

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+// ***********************************************************
+// This example support/index.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')