test(react): add Cypress tests for IcTheme

add Cypress tests for IcTheme

packages/react/src/component-tests/IcTheme/IcTheme.cy.tsx

@@ -0,0 +1,203 @@
+/* eslint-disable react/jsx-no-bind */
+/// <reference types="Cypress" />
+
+import { mount } from "cypress/react";
+import React from "react";
+import {
+  ComponentsWithInheritThemeProp,
+  SwitchBrand,
+  ThemeWithComponentThemeProps,
+  ThemeWithComponentWithinSeparateIcTheme,
+} from "./IcThemeTestData";
+import {
+  HAVE_ATTR,
+  HAVE_BEEN_CALLED_ONCE,
+  HAVE_BEEN_CALLED_WITH,
+} from "../utils/constants";
+import { setThresholdBasedOnEnv } from "../../../cypress/utils/helpers";
+
+const THEME_SELECTOR = "ic-theme";
+const DEFAULT_TEST_THRESHOLD = 0.048;
+
+describe("IcTheme end-to-end and visual regression tests", () => {
+  beforeEach(() => {
+    cy.injectAxe();
+    cy.viewport(1440, 900);
+  });
+
+  afterEach(() => {
+    cy.task("generateReport");
+  });
+
+  it("should render in light mode when IcTheme theme is set to light with components with theme prop set to dark rendered in dark mode", () => {
+    mount(
+      <ThemeWithComponentThemeProps
+        color={"rgba(27, 60, 121, 1)"}
+        theme={"light"}
+        backgroundColor="white"
+      />
+    );
+
+    cy.checkHydrated(THEME_SELECTOR);
+
+    cy.checkA11yWithWait();
+    cy.compareSnapshot({
+      name: "ic-theme-light-with-dark-mode-component-overrides",
+      testThreshold: setThresholdBasedOnEnv(DEFAULT_TEST_THRESHOLD + 0.031),
+    });
+  });
+
+  it("should render in light mode when IcTheme theme is set to light with components within another IcTheme component with theme set to dark rendered in dark mode", () => {
+    mount(
+      <ThemeWithComponentWithinSeparateIcTheme
+        color={"rgba(27, 60, 121, 1)"}
+        theme={"light"}
+        backgroundColor="white"
+      />
+    );
+
+    cy.checkHydrated(THEME_SELECTOR);
+
+    cy.checkA11yWithWait();
+    cy.compareSnapshot({
+      name: "ic-theme-light-with-components-within-ic-theme",
+      testThreshold: setThresholdBasedOnEnv(DEFAULT_TEST_THRESHOLD + 0.03),
+    });
+  });
+
+  it.skip("should render according to dark mode system settings when IcTheme theme is set to system", () => {
+    cy.wrap(
+      Cypress.automation("remote:debugger:protocol", {
+        command: "Emulation.setEmulatedMedia",
+        params: {
+          features: [
+            {
+              name: "prefers-color-scheme",
+              value: "dark",
+            },
+          ],
+        },
+      })
+    );
+
+    mount(
+      <ThemeWithComponentThemeProps
+        color={"rgba(27, 60, 121, 1)"}
+        theme={"system"}
+        backgroundColor="black"
+      />
+    );
+
+    cy.checkHydrated(THEME_SELECTOR);
+
+    cy.checkA11yWithWait();
+    cy.compareSnapshot({
+      name: "ic-theme-system-dark",
+      testThreshold: setThresholdBasedOnEnv(DEFAULT_TEST_THRESHOLD + 0.03),
+    });
+  });
+
+  it("should render according to light mode system settings when IcTheme theme is set to system", () => {
+    cy.wrap(
+      Cypress.automation("remote:debugger:protocol", {
+        command: "Emulation.setEmulatedMedia",
+        params: {
+          features: [
+            {
+              name: "prefers-color-scheme",
+              value: "light",
+            },
+          ],
+        },
+      })
+    );
+
+    mount(
+      <ThemeWithComponentThemeProps
+        color={"rgba(27, 60, 121, 1)"}
+        theme={"system"}
+        backgroundColor="white"
+      />
+    );
+
+    cy.checkHydrated(THEME_SELECTOR);
+
+    cy.checkA11yWithWait();
+    cy.compareSnapshot({
+      name: "ic-theme-system-light",
+      testThreshold: setThresholdBasedOnEnv(DEFAULT_TEST_THRESHOLD + 0.031),
+    });
+  });
+
+  it("should render components with IcTheme colour when theme prop is set to inherit - dark theme", () => {
+    mount(
+      <ComponentsWithInheritThemeProp
+        color={"rgba(27, 60, 121, 1)"}
+        theme={"dark"}
+        backgroundColor="black"
+      />
+    );
+
+    cy.checkHydrated(THEME_SELECTOR);
+
+    cy.checkA11yWithWait();
+    cy.compareSnapshot({
+      name: "ic-theme-inherit-dark",
+      testThreshold: setThresholdBasedOnEnv(DEFAULT_TEST_THRESHOLD),
+    });
+  });
+
+  it("should render components with IcTheme colour when theme prop is set to inherit - light theme", () => {
+    mount(
+      <ComponentsWithInheritThemeProp
+        color={"rgba(27, 60, 121, 1)"}
+        theme={"light"}
+        backgroundColor="white"
+      />
+    );
+
+    cy.checkHydrated(THEME_SELECTOR);
+
+    cy.checkA11yWithWait();
+    cy.compareSnapshot({
+      name: "ic-theme-inherit-light",
+      testThreshold: setThresholdBasedOnEnv(DEFAULT_TEST_THRESHOLD + 0.004),
+    });
+  });
+
+  it("should switch brand colour", () => {
+    mount(<SwitchBrand />);
+
+    cy.checkHydrated(THEME_SELECTOR);
+    cy.spy(window.console, "log").as("spyWinConsoleLog");
+    cy.get(THEME_SELECTOR).invoke(
+      "on",
+      "brandChange",
+      cy.stub().as("brandChange")
+    );
+
+    cy.get(THEME_SELECTOR).should(
+      HAVE_ATTR,
+      "brand-color",
+      "rgb(255, 201, 60)"
+    );
+
+    cy.compareSnapshot({
+      name: "sunrise-brand",
+      testThreshold: setThresholdBasedOnEnv(DEFAULT_TEST_THRESHOLD + 0.022),
+    });
+
+    cy.get("ic-button").contains("Default theme").click();
+    cy.get(THEME_SELECTOR).should(HAVE_ATTR, "brand-color", "rgb(27, 60, 121)");
+    cy.get("@brandChange").should(HAVE_BEEN_CALLED_ONCE);
+    cy.get("@spyWinConsoleLog").should(HAVE_BEEN_CALLED_WITH, {
+      mode: "light",
+      color: {
+        r: 27,
+        g: 60,
+        b: 121,
+        a: 1,
+      },
+    });
+  });
+});