Check unused scoped contexts for validity.

Author: gkellogg

CHANGELOG.md

@@ -21,6 +21,7 @@
 - Better frame validation.
 - Wildcard matching on `@id` and other `requireAll` semantics.
 - Default frame for lists.
+- Check unused scoped contexts for validity.
 
 ### Changed
 - Keep term definitions mapping to null so they may be protected.

lib/context.js

@@ -353,6 +353,27 @@ api.process = async ({
         options,
         overrideProtected
       });
+
+      if(_isObject(ctx[key]) && '@context' in ctx[key]) {
+        // parse context to validate
+        try {
+          await api.process({
+            activeCtx: rval,
+            localCtx: ctx[key]['@context'],
+            overrideProtected: true,
+            options
+          });
+        } catch(e) {
+          throw new JsonLdError(
+            'Invalid JSON-LD syntax; invalid scoped context.',
+            'jsonld.SyntaxError',
+            {
+              code: 'invalid scoped context',
+              context: ctx[key]['@context'],
+              term: key
+            });
+        }
+      }
     }
 
     // cache processed result

tests/test-common.js

@@ -85,9 +85,6 @@ const TEST_TYPES = {
         /expand-manifest.jsonld#thc05$/,
         // remote
         /remote-doc-manifest.jsonld#t0013$/, // HTML
-        // unused scoped context
-        /expand-manifest.jsonld#tc032$/,
-        /expand-manifest.jsonld#tc033$/,
       ]
     },
     fn: 'expand',
@@ -206,9 +203,6 @@ const TEST_TYPES = {
         // direction (compound-literal)
         /toRdf-manifest.jsonld#tdi11$/,
         /toRdf-manifest.jsonld#tdi12$/,
-        // unused scoped context
-        /toRdf-manifest.jsonld#tc032$/,
-        /toRdf-manifest.jsonld#tc033$/,
       ]
     },
     fn: 'toRDF',