test(validator): validate property groups

package.json

@@ -47,7 +47,7 @@
   ],
   "license": "MIT",
   "dependencies": {
-    "@bpmn-io/element-templates-validator": "^0.3.0",
+    "@bpmn-io/element-templates-validator": "^0.4.0",
     "@bpmn-io/extract-process-variables": "^0.4.4",
     "array-move": "^3.0.1",
     "classnames": "^2.3.1",

test/spec/provider/element-templates/Validator.spec.js

@@ -594,5 +594,42 @@ describe('provider/element-templates - Validator', function() {
     });
 
 
+    describe('grouping', function() {
+
+      it('should accept groups', function() {
+
+        // given
+        const templates = new Validator();
+
+        const templateDescriptor = require('./fixtures/groups');
+
+        // when
+        templates.addAll(templateDescriptor);
+
+        // then
+        expect(errors(templates)).to.be.empty;
+
+        expect(valid(templates)).to.have.length(templateDescriptor.length);
+      });
+
+
+      it('should not accept missing group id', function() {
+
+        // given
+        const templates = new Validator();
+
+        const templateDescriptor = require('./fixtures/error-groups-missing-id');
+
+        // when
+        templates.addAll(templateDescriptor);
+
+        // then
+        expect(errors(templates)).to.contain('template(id: <example.com.missingGroupId>, name: <Missing group id>): missing id for group "0"');
+
+        expect(valid(templates)).to.be.empty;
+      });
+
+    });
+
   });
 });

test/spec/provider/element-templates/fixtures/error-groups-missing-id.json

@@ -0,0 +1,23 @@
+[
+  {
+    "name": "Missing group id",
+    "id": "example.com.missingGroupId",
+    "appliesTo": [
+      "bpmn:ServiceTask"
+    ],
+    "properties": [],
+    "groups": [
+      {
+        "label": "Group one"
+      },
+      {
+        "id": "two",
+        "label": "Group two"
+      },
+      {
+        "id": "three",
+        "label": "Group three"
+      }
+    ]
+  }
+]

test/spec/provider/element-templates/fixtures/groups.json

@@ -0,0 +1,69 @@
+[
+  {
+    "name": "Grouping",
+    "id": "example.com.grouping",
+    "appliesTo": [
+      "bpmn:ServiceTask"
+    ],
+    "properties": [
+      {
+        "label": "input 1",
+        "type": "String",
+        "binding": {
+          "type": "camunda:inputParameter",
+          "name": "input1"
+        }
+      },
+      {
+        "label": "input 2",
+        "group": "one",
+        "type": "String",
+        "binding": {
+          "type": "camunda:inputParameter",
+          "name": "input2"
+        }
+      },
+      {
+        "label": "input 3",
+        "group": "one",
+        "type": "String",
+        "binding": {
+          "type": "camunda:inputParameter",
+          "name": "input3"
+        }
+      },
+      {
+        "label": "input 4",
+        "group": "two",
+        "type": "String",
+        "binding": {
+          "type": "camunda:inputParameter",
+          "name": "input4"
+        }
+      },
+      {
+        "label": "input 5",
+        "group": "three",
+        "type": "String",
+        "binding": {
+          "type": "camunda:inputParameter",
+          "name": "input5"
+        }
+      }
+    ],
+    "groups": [
+      {
+        "id": "one",
+        "label": "Group one"
+      },
+      {
+        "id": "two",
+        "label": "Group two"
+      },
+      {
+        "id": "three",
+        "label": "Group three"
+      }
+    ]
+  }
+]