fix: avoid diag info from other extension for tests

Author: LastLeaf

src/client.ts

@@ -106,7 +106,9 @@ export class Client {
       const range = new vscode.Range(err.startLine, err.startCol, err.endLine, err.endCol)
       const message = err.message
       const severity = vscode.DiagnosticSeverity.Warning
-      return new vscode.Diagnostic(range, message, severity)
+      const diag = new vscode.Diagnostic(range, message, severity)
+      diag.source = 'float-pigment-css-analyzer'
+      return diag
     })
     this.collection.set(uri, diagList)
   }

src/test/index.test.ts

@@ -21,6 +21,9 @@ suite('common', () => {
     const uri = getUri('components/index.css')
     await vscode.window.showTextDocument(uri)
     await sleep(1000)
-    assert.equal(vscode.languages.getDiagnostics(uri).length, 2)
+    const diagList = vscode.languages
+      .getDiagnostics(uri)
+      .filter((diag) => diag.source === 'float-pigment-css-analyzer')
+    assert.equal(diagList.length, 1)
   })
 })