test: fix coverage

.nycrc

@@ -2,5 +2,14 @@
   "reporter": ["html", "text"],
   "lines": 98,
   "branches": "90",
-  "statements": "98"
+  "statements": "98",
+  "exclude": [
+    "build/deno.js",
+    "build/vendor-extra.cjs",
+    "build/vendor-core.cjs",
+    "build/esblib.cjs",
+    "test/**",
+    "scripts",
+    "src/util.ts"
+  ]
 }

package.json

@@ -75,7 +75,7 @@
     "test:it": "node ./test/it/build.test.js",
     "test:jsr": "node ./test/it/build-jsr.test.js",
     "test:unit": "node --experimental-strip-types ./test/all.test.js",
-    "test:coverage": "c8 -x build/deno.js -x build/vendor-extra.cjs -x build/vendor-core.cjs -x build/esblib.cjs -x 'test/**' -x scripts --check-coverage npm run test:unit",
+    "test:coverage": "c8 -c .nycrc --check-coverage npm run test:unit",
     "test:circular": "madge --circular src/*",
     "test:types": "tsd",
     "test:license": "node ./test/extra.test.js",

test/md.test.ts

@@ -18,6 +18,7 @@ import { transformMarkdown } from '../src/md.ts'
 
 describe('md', () => {
   test('transformMarkdown()', () => {
+    assert.equal(transformMarkdown('\n'), '// \n// ')
     // prettier-ignore
     assert.equal(transformMarkdown(`
 # Title
@@ -35,6 +36,10 @@ await $\`echo "ts"\`
 unknown code block
 ~~~
 
+~~~sh
+echo foo
+~~~
+
 `), `// 
 // # Title
 //     
@@ -50,6 +55,10 @@ await $\`echo "ts"\`
 
 // unknown code block
 
+// 
+await $\`
+echo foo
+\`
 // 
 // `)
   })