Combine SVG NaN/undefined value tests

Merged separate tests for NaN and undefined values in SVG output into a single test case. This improves test clarity and reduces redundancy by validating width, height, and general undefined checks together.

Author: ReenigneArcher

tests/svg-utils.test.ts

@@ -355,7 +355,7 @@ describe('createWrappedSponsorSvg', () => {
       expect(result).not.toContain('y="NaN"');
     });
 
-    it('should not produce NaN for width', () => {
+    it('should not produce NaN or undefined values', () => {
       const result = createWrappedSponsorSvg(
         mockSponsor,
         simpleSvgContent,
@@ -366,38 +366,17 @@ describe('createWrappedSponsorSvg', () => {
         0
       );
 
+      // Width validation
       expect(result).toContain('width="60"');
       expect(result).not.toContain('width="NaN"');
       expect(result).not.toContain('width="undefined"');
-    });
-
-    it('should not produce NaN for height', () => {
-      const result = createWrappedSponsorSvg(
-        mockSponsor,
-        simpleSvgContent,
-        180,
-        180,
-        60,
-        0,
-        0
-      );
 
+      // Height validation
       expect(result).toContain('height="60"');
       expect(result).not.toContain('height="NaN"');
       expect(result).not.toContain('height="undefined"');
-    });
-
-    it('should not produce undefined in viewBox', () => {
-      const result = createWrappedSponsorSvg(
-        mockSponsor,
-        simpleSvgContent,
-        180,
-        180,
-        60,
-        0,
-        0
-      );
 
+      // General undefined check
       expect(result).not.toContain('undefined');
     });
   });