💚 Compare PDFs only under Chromium

There are slight rendering differences between
that and Firefox that otherwise make the
comparison fail.

tests/specs/generate-pdf.spec.js

@@ -24,7 +24,7 @@ test.beforeEach(async ({page, testPdf}) => {
     await expect(page.locator("#generate")).toBeEnabled();
 });
 
-test("Simple PDF generation", async ({page, testPdf}) => {
+test("Simple PDF generation", async ({page, testPdf}, testInfo) => {
     // generate PDF
     await page.locator("#generate").click();
 
@@ -42,15 +42,18 @@ test("Simple PDF generation", async ({page, testPdf}) => {
     expect(download.url()).toContain("blob:");
     expect(download.suggestedFilename()).toMatch(/.pdf$/i);
 
-    let result;
-    try {
-        result = await pdfCompare(await download.path(), testPdf.outputPath);
-    } catch (error) {
-        result = error;
+    if (testInfo.project === "chromium") {
+        // compare PDFs, but only in Chrome for now due to different rendering in Firefox
+        let result;
+        try {
+            result = await pdfCompare(await download.path(), testPdf.outputPath);
+        } catch (error) {
+            result = error;
+        }
+        console.log("Result:", result);
+        expect(result.message).toBeUndefined();
+        expect(result.status).toBe("passed")    
     }
-    console.log("Result:", result);
-    expect(result.message).toBeUndefined();
-    expect(result.status).toBe("passed")
 
     // cleanup
     await download.delete();