Allow presets to define metadata

packages/gasket-metadata-plugin/CHANGELOG.md

@@ -1,5 +1,6 @@
 # `@gasket/metadata-plugin`
 
+- Allow presets to define metadata
 - Metadata is assigned to gasket instance, and only by this plugin ([#64])
   - Uses [Loader] from gasket instance to get [PluginInfo] and [PresetInfo] data
   - `gasket.metadata` structure matches loaded infos with functions redacted

packages/gasket-metadata-plugin/lib/index.js

@@ -46,6 +46,16 @@ module.exports = {
         }
         presets.forEach(checkPreset);
       });
+
+      // Loading preset metadata from module
+      presets.forEach(preset => {
+        if (preset.module.metadata) {
+          Object.keys(preset.module.metadata).reduce((acc, cur) => {
+            acc[cur] = preset.module.metadata[cur];
+            return acc;
+          }, preset);
+        }
+      });
     },
     metadata(gasket, pluginData) {
       return {

packages/gasket-metadata-plugin/test/index.test.js

@@ -27,7 +27,12 @@ const mockPluginInfo = {
 
 const mockPresetInfo = {
   name: '@gasket/mock-preset',
-  module: {},
+  metadataKey: 'oldMetadataValue',
+  module: {
+    metadata: {
+      metadataKey: 'metadataValue'
+    }
+  },
   plugins: [mockPluginInfo]
 };
 
@@ -124,6 +129,18 @@ describe('Metadata plugin', function () {
     it('augments the metadata with data from the lifecycle hooks', async function () {
       assume(gasket.metadata.plugins[0]).property('modified', true);
     });
+  });
 
+  describe('presets metadata', function () {
+    it('loads preset metadata', async function () {
+      await plugin.hooks.init(gasket);
+      assume(gasket.metadata.presets[0]).property('metadataKey', 'metadataValue');
+    });
+
+    it('overrides the value if a collision is found', async function () {
+      assume(mockPresetInfo).property('metadataKey', 'oldMetadataValue');
+      await plugin.hooks.init(gasket);
+      assume(gasket.metadata.presets[0]).property('metadataKey', 'metadataValue');
+    });
   });
 });