Add annotation tests for schema interface

test/annotations.capnp

@@ -0,0 +1,15 @@
+@0xfb9a160831eee9bb;
+
+struct AnnotationStruct {
+  test @0: Int32;
+}
+
+annotation test1(*): Text;
+annotation test2(*): AnnotationStruct;
+annotation test3(*): List(AnnotationStruct);
+
+$test1("TestFile");
+
+struct TestAnnotationOne $test1("Test") { }
+struct TestAnnotationTwo $test2(test = 100) { }
+struct TestAnnotationThree $test3([(test=100), (test=101)]) { }

test/test_schema.py

@@ -10,9 +10,15 @@ def addressbook():
     return capnp.load(os.path.join(this_dir, 'addressbook.capnp'))
 
 
+@pytest.fixture
+def annotations():
+    return capnp.load(os.path.join(this_dir, 'annotations.capnp'))
+
+
 def test_basic_schema(addressbook):
     assert addressbook.Person.schema.fieldnames[0] == 'id'
 
+
 def test_list_schema(addressbook):
     peopleField = addressbook.AddressBook.schema.fields['people']
     personType = peopleField.schema.elementType
@@ -22,3 +28,19 @@ def test_list_schema(addressbook):
     personListSchema = capnp.ListSchema(addressbook.Person)
 
     assert personListSchema.elementType.node.id == addressbook.Person.schema.node.id
+
+
+def test_annotations(annotations):
+    assert annotations.schema.node.annotations[0].value.text == 'TestFile'
+
+    annotation = annotations.TestAnnotationOne.schema.node.annotations[0]
+    assert annotation.value.text == 'Test'
+
+    annotation = annotations.TestAnnotationTwo.schema.node.annotations[0]
+    assert annotation.value.struct.as_struct(annotations.AnnotationStruct).test == 100
+
+    annotation = annotations.TestAnnotationThree.schema.node.annotations[0]
+    annotation_list = annotation.value.list.as_list(capnp.ListSchema(annotations.AnnotationStruct))
+    assert annotation_list[0].test == 100
+    assert annotation_list[1].test == 101
+