test(ui-truncate-text): use vitest matchers instead of chai's to.equal

Replace expect(...).to.equal(...) chai-style assertions with vitest's
native toEqual() in cleanString.test.tsx and cleanData.test.tsx. These
were leftover from an old Mocha/Chai migration and were the only
reason oxlint's vitest/valid-expect rule was disabled for this
package's tests. Remove that now-unneeded per-file override from
.oxlintrc.json so the rule applies uniformly.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: joyenjoyer

.oxlintrc.json

@@ -366,13 +366,6 @@
         ]
       }
     },
-    {
-      "files": ["packages/ui-truncate-text/src/TruncateText/__tests__/**"],
-      "plugins": ["vitest"],
-      "rules": {
-        "vitest/valid-expect": "off"
-      }
-    },
     {
       "files": ["**/*"],
       "excludeFiles": ["**/__tests__/**"],

packages/ui-truncate-text/src/TruncateText/__tests__/cleanData.test.tsx

@@ -35,7 +35,7 @@ describe('cleanData', () => {
       ignore: [' ']
     }
     const newData = cleanData(data, options)
-    expect(newData[0].join('')).to.equal('Test...')
+    expect(newData[0].join('')).toEqual('Test...')
   })
 
   it('should remove spaces from the end of word data', async () => {
@@ -47,7 +47,7 @@ describe('cleanData', () => {
     }
 
     const newData = cleanData(data, options)
-    expect(newData[0].join('')).to.equal('Test...')
+    expect(newData[0].join('')).toEqual('Test...')
   })
 
   it('should remove spaces from the middle of character data', async () => {
@@ -61,7 +61,7 @@ describe('cleanData', () => {
     }
 
     const newData = cleanData(data, options)
-    expect(newData[0].join('')).to.equal('Hello...world')
+    expect(newData[0].join('')).toEqual('Hello...world')
   })
 
   it('should remove spaces from the middle of word data', async () => {
@@ -73,7 +73,7 @@ describe('cleanData', () => {
     }
 
     const newData = cleanData(data, options)
-    expect(newData[0].join('')).to.equal('Hello...world')
+    expect(newData[0].join('')).toEqual('Hello...world')
   })
 
   it('should do a thorough cleaning', async () => {
@@ -85,7 +85,7 @@ describe('cleanData', () => {
     }
 
     const newData = cleanData(data, options, true)
-    expect(newData[0].join('')).to.equal('Test...')
+    expect(newData[0].join('')).toEqual('Test...')
   })
 
   it('should remove spaces from the end of complex character data', async () => {
@@ -106,8 +106,8 @@ describe('cleanData', () => {
     newData = cleanData(data, options)
     const text2 = newData[0].join('') + newData[1].join('')
 
-    expect(text).to.equal('Hello...')
-    expect(text2).to.equal('Hello world...')
+    expect(text).toEqual('Hello...')
+    expect(text2).toEqual('Hello world...')
   })
 
   it('should remove spaces from the middle of complex word data', async () => {
@@ -125,7 +125,7 @@ describe('cleanData', () => {
     newData = cleanData(data, options)
     const text2 = newData[0].join('') + newData[1].join('')
 
-    expect(text).to.equal('Hello...world')
-    expect(text2).to.equal('Hello...world')
+    expect(text).toEqual('Hello...world')
+    expect(text2).toEqual('Hello...world')
   })
 })

packages/ui-truncate-text/src/TruncateText/__tests__/cleanString.test.tsx

@@ -31,27 +31,27 @@ describe('cleanSring', () => {
     const string = ' Hello world '
 
     const newString = cleanString(string, [' '])
-    expect(newString).to.equal('Hello world')
+    expect(newString).toEqual('Hello world')
   })
 
   it('should remove spaces from only the end of string', async () => {
     const string = ' Hello world '
 
     const newString = cleanString(string, [' '], false)
-    expect(newString).to.equal(' Hello world')
+    expect(newString).toEqual(' Hello world')
   })
 
   it('should remove spaces and commas', async () => {
     const string = ' Hello world,'
 
     const newString = cleanString(string, [' ', ','])
-    expect(newString).to.equal('Hello world')
+    expect(newString).toEqual('Hello world')
   })
 
   it('should do a thorough cleaning', async () => {
     const string = 'Hello world. '
 
     const newString = cleanString(string, [' ', '.'], false, true, true)
-    expect(newString).to.equal('Hello world')
+    expect(newString).toEqual('Hello world')
   })
 })