handle exceptions in goal policy

src/policies/goals.js

@@ -103,7 +103,11 @@ export default class Goal {
   }
 
   canView() {
+    if (!this.goal || !this.goal.grant) {
+      return false;
+    }
     const region = this.goal.grant.regionId;
+
     return this.canReadInRegion(region);
   }
 }

src/policies/goals.test.js

@@ -216,4 +216,52 @@ describe('Goals policies', () => {
       expect(policy.isOnApprovedActivityReports()).toBe(true);
     });
   });
+
+  describe('canView', () => {
+    it('returns false if no goal', () => {
+      const user = {
+        permissions: [
+          {
+            regionId: 2,
+            scopeId: SCOPES.APPROVE_REPORTS,
+          },
+        ],
+      };
+
+      const policy = new Goal(user);
+      expect(policy.canView()).toBe(false);
+    });
+
+    it('returns false if goal has no grant', () => {
+      const user = {
+        permissions: [
+          {
+            regionId: 2,
+            scopeId: SCOPES.APPROVE_REPORTS,
+          },
+        ],
+      };
+
+      const policy = new Goal(user, {});
+      expect(policy.canView()).toBe(false);
+    });
+
+    it('returns true if user has permissions in that region', () => {
+      const user = {
+        permissions: [
+          {
+            regionId: 2,
+            scopeId: SCOPES.APPROVE_REPORTS,
+          },
+        ],
+      };
+
+      const goal = {
+        grant: { regionId: 2 },
+      };
+
+      const policy = new Goal(user, goal);
+      expect(policy.canView()).toBe(true);
+    });
+  });
 });