Sync hierarchy updates (#2087)

* Add parent sync orchestration

* Pass sync object to dependents

test/models/sync_test.rb

@@ -7,7 +7,7 @@ class SyncTest < ActiveSupport::TestCase
   end
 
   test "runs successful sync" do
-    @sync.syncable.expects(:sync_data).with(start_date: @sync.start_date).once
+    @sync.syncable.expects(:sync_data).with(@sync, start_date: @sync.start_date).once
 
     assert_equal "pending", @sync.status
 
@@ -20,7 +20,7 @@ class SyncTest < ActiveSupport::TestCase
   end
 
   test "handles sync errors" do
-    @sync.syncable.expects(:sync_data).with(start_date: @sync.start_date).raises(StandardError.new("test sync error"))
+    @sync.syncable.expects(:sync_data).with(@sync, start_date: @sync.start_date).raises(StandardError.new("test sync error"))
 
     assert_equal "pending", @sync.status
     previously_ran_at = @sync.last_ran_at
@@ -31,4 +31,30 @@ class SyncTest < ActiveSupport::TestCase
     assert_equal "failed", @sync.status
     assert_equal "test sync error", @sync.error
   end
+
+  test "runs sync with child syncs" do
+    family = families(:dylan_family)
+
+    parent = Sync.create!(syncable: family)
+    child1 = Sync.create!(syncable: family.accounts.first, parent: parent)
+    child2 = Sync.create!(syncable: family.accounts.last, parent: parent)
+
+    parent.syncable.expects(:sync_data).returns([]).once
+    child1.syncable.expects(:sync_data).returns([]).once
+    child2.syncable.expects(:sync_data).returns([]).once
+
+    parent.perform # no-op
+
+    assert_equal "syncing", parent.status
+    assert_equal "pending", child1.status
+    assert_equal "pending", child2.status
+
+    child1.perform
+    assert_equal "completed", child1.status
+    assert_equal "syncing", parent.status
+
+    child2.perform
+    assert_equal "completed", child2.status
+    assert_equal "completed", parent.status
+  end
 end