test(matchers/to-be-checked): validate toBeChecked matcher checks element checked state

Author: mdjastrzebski

src/__tests__/render-hook.test.tsx

@@ -1,5 +1,3 @@
-import * as React from 'react';
-
 import { renderHook } from '..';
 
 it('renders a hook with initial props and allows rerendering with new props', async () => {

src/matchers/__tests__/to-be-checked.test.tsx

@@ -0,0 +1,31 @@
+import * as React from 'react';
+import { Text, View } from 'react-native';
+
+import { render, screen } from '../..';
+
+it('checks if element is checked via accessibilityState', async () => {
+  const Component = () => (
+    <View>
+      <View
+        testID="checked-checkbox"
+        accessible
+        role="checkbox"
+        accessibilityState={{ checked: true }}
+      />
+      <View
+        testID="unchecked-checkbox"
+        accessible
+        role="checkbox"
+        accessibilityState={{ checked: false }}
+      />
+    </View>
+  );
+
+  await render(<Component />);
+
+  const checkedElement = screen.getByTestId('checked-checkbox');
+  const uncheckedElement = screen.getByTestId('unchecked-checkbox');
+
+  expect(checkedElement).toBeChecked();
+  expect(uncheckedElement).not.toBeChecked();
+});

test-coverage-progress.txt

@@ -24,3 +24,4 @@ test(matchers/to-be-busy): Validates toBeBusy matcher checks if element is busy
 test(matchers/to-have-text-content): Validates toHaveTextContent matcher checks if element has expected text content - critical matcher users depend on for verifying text content in components. Coverage: 69.69% statements (was 27.27%), 33.33% branches, 50% functions for to-have-text-content.ts. Covered main matcher function, text content retrieval and matching. Uncovered: error message formatting (lines 22-31).
 test(wait-for): Validates waitFor onTimeout callback customizes timeout error messages - critical feature users depend on for customizing error messages when async conditions timeout. Coverage: 67.5% statements (was 65%), 71.42% branches (was 68.96%), 100% functions for wait-for.ts. Covered onTimeout callback invocation and error replacement (lines 184-188). Uncovered: type checking (lines 33-34), fake timers path (lines 47-95), timer switching errors (lines 121-127), non-Error to Error conversion (lines 171-172).
 test(matchers/to-be-empty-element): Validates toBeEmptyElement matcher checks if element has no host element children - critical matcher users depend on for testing empty states, loading states, and components that should render nothing. Coverage: 73.07% statements (was 34.61%), 100% branches, 50% functions for to-be-empty-element.ts. Covered main matcher function, children filtering logic, both positive and negative (.not) variants. Uncovered: error message formatting (lines 18-24).
+test(matchers/to-be-checked): Validates toBeChecked matcher checks if element is checked via accessibilityState - critical matcher users depend on for testing checkbox/radio button states in forms and interactive components. Coverage: 68.08% statements (was 36.17%), 50% branches, 66.66% functions for to-be-checked.ts. Covered main matcher function, computeAriaChecked logic, checked and unchecked states, both positive and negative (.not) variants. Uncovered: error path for unsupported elements (lines 20-24), error message formatting (lines 29-36), helper function edge case (lines 42-43).