test(Label_20_POS): validate preamble, parsed coordinates, and formatted POS item

Co-Authored-By: Kevin Elliott <kevin@welikeinc.com>

Author: devin-ai-integration[bot]

lib/plugins/Label_20_POS.test.ts

@@ -14,18 +14,39 @@ describe('Label_20_POS', () => {
     const res = decode(text);
 
     expect(res.decoded).toBe(true);
+    expect(res.decoder.name).toBe('label-20-pos');
     expect(res.decoder.decodeLevel).toBe('full');
     expect(res.formatted.description).toBe('Position Report');
+
     expect(res.raw.preamble).toBe('POS');
+    expect(res.raw.position).toBeDefined();
+    expect(res.raw.position.latitude).toBeCloseTo(38.160, 3);
+    expect(res.raw.position.longitude).toBeCloseTo(-77.075, 3);
+
+    const posItem = res.formatted.items.find(i => i.code === 'POS');
+    expect(posItem).toBeDefined();
+    expect(posItem.value).toContain('38.160');
+    expect(posItem.value).toContain('77.075');
   });
 
   it('decodes POS variation with 5 fields (coordinates only)', () => {
     const text = 'POSN38160W077075,,211733,360,OTT';
     const res = decode(text);
 
     expect(res.decoded).toBe(true);
+    expect(res.decoder.name).toBe('label-20-pos');
     expect(res.decoder.decodeLevel).toBe('full');
     expect(res.formatted.description).toBe('Position Report');
+
+    expect(res.raw.preamble).toBe('POS');
+    expect(res.raw.position).toBeDefined();
+    expect(res.raw.position.latitude).toBeCloseTo(38.160, 3);
+    expect(res.raw.position.longitude).toBeCloseTo(-77.075, 3);
+
+    const posItem = res.formatted.items.find(i => i.code === 'POS');
+    expect(posItem).toBeDefined();
+    expect(posItem.value).toContain('38.160');
+    expect(posItem.value).toContain('77.075');
   });
 
   it('marks unknown variation as not decoded', () => {