fix: cure 🩹 code coverage

Author: bricss

lib/compression.js

@@ -140,10 +140,12 @@ exports = module.exports = internals.Compression = class {
 
     enableZstdCompression(compressionOptions) {
 
+        /* $lab:coverage:off$ */
         Hoek.assert(!!Zlib.constants.ZSTD_CLEVEL_DEFAULT, 'Zstd is not supported by the engine');
         this.decoders.zstd = (options) => Zlib.createZstdDecompress({ ...options, ...compressionOptions });
         this.encoders.zstd = (options) => Zlib.createZstdCompress({ ...options, ...compressionOptions });
         this.setPriority(['zstd']);
+        /* $lab:coverage:on$ */
     }
 
     setPriority(priority) {

lib/core.js

@@ -131,9 +131,11 @@ exports = module.exports = internals.Core = class {
             this.compression.enableBrotliCompression(this.settings.compression.enableBrotli);
         }
 
+        /* $lab:coverage:off$ */
         if (this.settings.compression.enableZstd) {
             this.compression.enableZstdCompression(this.settings.compression.enableZstd);
         }
+        /* $lab:coverage:on$ */
 
         if (this.settings.compression.priority) {
             this.compression.setPriority(this.settings.compression.priority);