test: Add comprehensive test coverage for hasInteractiveNodes utility

packages/react/src/internal/utils/__tests__/hasInteractiveNodes.test.ts

@@ -2,26 +2,30 @@ import {describe, expect, test} from 'vitest'
 import {hasInteractiveNodes} from '../hasInteractiveNodes'
 
 describe('hasInteractiveNodes', () => {
-  test('if there are no interactive nodes', () => {
+  test('returns false when node is null', () => {
+    expect(hasInteractiveNodes(null)).toBe(false)
+  })
+
+  test('returns false if there are no interactive nodes', () => {
     const node = document.createElement('div')
     expect(hasInteractiveNodes(node)).toBe(false)
   })
 
-  test('if there are interactive nodes', () => {
+  test('returns true if there are interactive nodes', () => {
     const node = document.createElement('div')
     const button = document.createElement('button')
     node.appendChild(button)
 
     expect(hasInteractiveNodes(node)).toBe(true)
   })
 
-  test('if the node itself is interactive', () => {
+  test('returns false if the node itself is interactive', () => {
     const node = document.createElement('button')
 
     expect(hasInteractiveNodes(node)).toBe(false)
   })
 
-  test('if there are nested interactive nodes', () => {
+  test('returns true if there are nested interactive nodes', () => {
     const node = document.createElement('div')
     const wrapper = document.createElement('div')
     const button = document.createElement('button')
@@ -33,28 +37,329 @@ describe('hasInteractiveNodes', () => {
     expect(hasInteractiveNodes(node)).toBe(true)
   })
 
-  test('if the node is disabled', () => {
-    const node = document.createElement('button')
-    node.disabled = true
+  describe('disabled elements', () => {
+    test('returns false if the node is disabled', () => {
+      const node = document.createElement('button')
+      node.disabled = true
 
-    expect(hasInteractiveNodes(node)).toBe(false)
+      expect(hasInteractiveNodes(node)).toBe(false)
+    })
+
+    test('returns false if the child node is disabled', () => {
+      const node = document.createElement('div')
+      const button = document.createElement('button')
+      button.disabled = true
+      node.appendChild(button)
+
+      expect(hasInteractiveNodes(node)).toBe(false)
+    })
   })
 
-  test('if the child node is disabled', () => {
-    const node = document.createElement('div')
-    const button = document.createElement('button')
-    button.disabled = true
-    node.appendChild(button)
+  describe('tabindex handling', () => {
+    test('returns true if child node has tabindex="0"', () => {
+      const node = document.createElement('div')
+      const span = document.createElement('span')
+      span.setAttribute('tabindex', '0')
+      node.appendChild(span)
 
-    expect(hasInteractiveNodes(node)).toBe(false)
+      expect(hasInteractiveNodes(node)).toBe(true)
+    })
+
+    test('returns false if child node has tabindex="-1"', () => {
+      const node = document.createElement('div')
+      const span = document.createElement('span')
+      span.setAttribute('tabindex', '-1')
+      node.appendChild(span)
+
+      expect(hasInteractiveNodes(node)).toBe(false)
+    })
   })
 
-  test('if child node has tabindex', () => {
-    const node = document.createElement('div')
-    const span = document.createElement('span')
-    span.setAttribute('tabindex', '0')
-    node.appendChild(span)
+  describe('interactive element types', () => {
+    test('returns true for anchor with href', () => {
+      const node = document.createElement('div')
+      const anchor = document.createElement('a')
+      anchor.href = 'https://example.com'
+      node.appendChild(anchor)
 
-    expect(hasInteractiveNodes(node)).toBe(true)
+      expect(hasInteractiveNodes(node)).toBe(true)
+    })
+
+    test('returns false for anchor without href', () => {
+      const node = document.createElement('div')
+      const anchor = document.createElement('a')
+      node.appendChild(anchor)
+
+      expect(hasInteractiveNodes(node)).toBe(false)
+    })
+
+    test('returns true for button', () => {
+      const node = document.createElement('div')
+      const button = document.createElement('button')
+      node.appendChild(button)
+
+      expect(hasInteractiveNodes(node)).toBe(true)
+    })
+
+    test('returns true for summary', () => {
+      const node = document.createElement('div')
+      const summary = document.createElement('summary')
+      node.appendChild(summary)
+
+      expect(hasInteractiveNodes(node)).toBe(true)
+    })
+
+    test('returns true for select', () => {
+      const node = document.createElement('div')
+      const select = document.createElement('select')
+      node.appendChild(select)
+
+      expect(hasInteractiveNodes(node)).toBe(true)
+    })
+
+    test('returns true for input (not hidden)', () => {
+      const node = document.createElement('div')
+      const input = document.createElement('input')
+      input.type = 'text'
+      node.appendChild(input)
+
+      expect(hasInteractiveNodes(node)).toBe(true)
+    })
+
+    test('returns false for input with type=hidden', () => {
+      const node = document.createElement('div')
+      const input = document.createElement('input')
+      input.type = 'hidden'
+      node.appendChild(input)
+
+      expect(hasInteractiveNodes(node)).toBe(false)
+    })
+
+    test('returns true for textarea', () => {
+      const node = document.createElement('div')
+      const textarea = document.createElement('textarea')
+      node.appendChild(textarea)
+
+      expect(hasInteractiveNodes(node)).toBe(true)
+    })
+
+    test('returns true for audio with controls', () => {
+      const node = document.createElement('div')
+      const audio = document.createElement('audio')
+      audio.controls = true
+      node.appendChild(audio)
+
+      expect(hasInteractiveNodes(node)).toBe(true)
+    })
+
+    test('returns false for audio without controls', () => {
+      const node = document.createElement('div')
+      const audio = document.createElement('audio')
+      node.appendChild(audio)
+
+      expect(hasInteractiveNodes(node)).toBe(false)
+    })
+
+    test('returns true for video with controls', () => {
+      const node = document.createElement('div')
+      const video = document.createElement('video')
+      video.controls = true
+      node.appendChild(video)
+
+      expect(hasInteractiveNodes(node)).toBe(true)
+    })
+
+    test('returns false for video without controls', () => {
+      const node = document.createElement('div')
+      const video = document.createElement('video')
+      node.appendChild(video)
+
+      expect(hasInteractiveNodes(node)).toBe(false)
+    })
+
+    test('returns true for contenteditable element', () => {
+      const node = document.createElement('div')
+      const editable = document.createElement('div')
+      editable.contentEditable = 'true'
+      node.appendChild(editable)
+
+      expect(hasInteractiveNodes(node)).toBe(true)
+    })
+  })
+
+  describe('hidden and inert elements', () => {
+    test('returns false for element with hidden attribute', () => {
+      const node = document.createElement('div')
+      const button = document.createElement('button')
+      button.hidden = true
+      node.appendChild(button)
+
+      expect(hasInteractiveNodes(node)).toBe(false)
+    })
+
+    test('returns false for element with inert attribute', () => {
+      const node = document.createElement('div')
+      const button = document.createElement('button')
+      button.setAttribute('inert', '')
+      node.appendChild(button)
+
+      expect(hasInteractiveNodes(node)).toBe(false)
+    })
+  })
+
+  describe('CSS visibility', () => {
+    test('returns false for element with display:none', () => {
+      const node = document.createElement('div')
+      const button = document.createElement('button')
+      button.style.display = 'none'
+      node.appendChild(button)
+      document.body.appendChild(node)
+
+      expect(hasInteractiveNodes(node)).toBe(false)
+
+      document.body.removeChild(node)
+    })
+
+    test('returns false for element with visibility:hidden', () => {
+      const node = document.createElement('div')
+      const button = document.createElement('button')
+      button.style.visibility = 'hidden'
+      node.appendChild(button)
+      document.body.appendChild(node)
+
+      expect(hasInteractiveNodes(node)).toBe(false)
+
+      document.body.removeChild(node)
+    })
+
+    test('returns true for element with visibility:visible', () => {
+      const node = document.createElement('div')
+      const button = document.createElement('button')
+      button.style.visibility = 'visible'
+      node.appendChild(button)
+      document.body.appendChild(node)
+
+      expect(hasInteractiveNodes(node)).toBe(true)
+
+      document.body.removeChild(node)
+    })
+  })
+
+  describe('ignoreNodes parameter', () => {
+    test('ignores nodes in ignoreNodes array', () => {
+      const node = document.createElement('div')
+      const button1 = document.createElement('button')
+      const button2 = document.createElement('button')
+      node.appendChild(button1)
+      node.appendChild(button2)
+
+      expect(hasInteractiveNodes(node, [button1, button2])).toBe(false)
+    })
+
+    test('returns true if there are interactive nodes not in ignoreNodes', () => {
+      const node = document.createElement('div')
+      const button1 = document.createElement('button')
+      const button2 = document.createElement('button')
+      node.appendChild(button1)
+      node.appendChild(button2)
+
+      expect(hasInteractiveNodes(node, [button1])).toBe(true)
+    })
+
+    test('always ignores the node itself', () => {
+      const node = document.createElement('button')
+      const childButton = document.createElement('button')
+      node.appendChild(childButton)
+
+      expect(hasInteractiveNodes(node)).toBe(true)
+    })
+  })
+
+  describe('performance optimizations', () => {
+    test('handles large DOM trees efficiently', () => {
+      const node = document.createElement('div')
+
+      // Create a large tree with multiple levels
+      for (let i = 0; i < 100; i++) {
+        const wrapper = document.createElement('div')
+        const span = document.createElement('span')
+        wrapper.appendChild(span)
+        node.appendChild(wrapper)
+      }
+
+      // Add one interactive node at the end
+      const button = document.createElement('button')
+      node.appendChild(button)
+
+      expect(hasInteractiveNodes(node)).toBe(true)
+    })
+
+    test('stops early when first interactive node is found', () => {
+      const node = document.createElement('div')
+
+      // Add interactive node at the beginning
+      const button = document.createElement('button')
+      node.appendChild(button)
+
+      // Add many more elements after
+      for (let i = 0; i < 100; i++) {
+        const div = document.createElement('div')
+        node.appendChild(div)
+      }
+
+      expect(hasInteractiveNodes(node)).toBe(true)
+    })
+  })
+
+  describe('complex scenarios', () => {
+    test('handles multiple types of interactive elements', () => {
+      const node = document.createElement('div')
+      const anchor = document.createElement('a')
+      anchor.href = '#'
+      const button = document.createElement('button')
+      const input = document.createElement('input')
+
+      node.appendChild(anchor)
+      node.appendChild(button)
+      node.appendChild(input)
+
+      expect(hasInteractiveNodes(node)).toBe(true)
+    })
+
+    test('handles deeply nested structure', () => {
+      const node = document.createElement('div')
+      let current = node
+
+      // Create deep nesting
+      for (let i = 0; i < 10; i++) {
+        const wrapper = document.createElement('div')
+        current.appendChild(wrapper)
+        current = wrapper
+      }
+
+      // Add button at the deepest level
+      const button = document.createElement('button')
+      current.appendChild(button)
+
+      expect(hasInteractiveNodes(node)).toBe(true)
+    })
+
+    test('correctly handles mix of valid and invalid interactive elements', () => {
+      const node = document.createElement('div')
+
+      const disabledButton = document.createElement('button')
+      disabledButton.disabled = true
+
+      const hiddenButton = document.createElement('button')
+      hiddenButton.hidden = true
+
+      const validButton = document.createElement('button')
+
+      node.appendChild(disabledButton)
+      node.appendChild(hiddenButton)
+      node.appendChild(validButton)
+
+      expect(hasInteractiveNodes(node)).toBe(true)
+    })
   })
 })