Add tests for default properties

tests/integration/query/inline_array/simple_test.go

@@ -93,6 +93,28 @@ func TestQueryInlineArrayWithBooleans(t *testing.T) {
 
 func TestQueryInlineArrayWithIntegers(t *testing.T) {
 	tests := []testUtils.QueryTestCase{
+		{
+			Description: "Simple inline array with no filter, default integer array",
+			Query: `query {
+						users {
+							Name
+							FavouriteIntegers
+						}
+					}`,
+			Docs: map[int][]string{
+				0: {
+					`{
+						"Name": "John"
+					}`,
+				},
+			},
+			Results: []map[string]interface{}{
+				{
+					"Name":              "John",
+					"FavouriteIntegers": nil,
+				},
+			},
+		},
 		{
 			Description: "Simple inline array with no filter, nil integer array",
 			Query: `query {

tests/integration/query/simple/simple_test.go

@@ -121,3 +121,61 @@ func TestQuerySimpleWithUndefinedField(t *testing.T) {
 
 	executeTestCase(t, test)
 }
+
+func TestQuerySimpleWithSomeDefaultValues(t *testing.T) {
+	test := testUtils.QueryTestCase{
+		Description: "Simple query with some default-value fields",
+		Query: `query {
+					users {
+						Name
+						Email
+						Age
+						HeightM
+						Verified
+					}
+				}`,
+		Docs: map[int][]string{
+			0: {
+				`{
+					"Name": "John"
+				}`,
+			},
+		},
+		Results: []map[string]interface{}{
+			{
+				"Name":     "John",
+				"Email":    nil,
+				"Age":      nil,
+				"HeightM":  nil,
+				"Verified": nil,
+			},
+		},
+	}
+
+	executeTestCase(t, test)
+}
+
+// This test documents undesirable behaviour and should be altered
+// with https://github.com/sourcenetwork/defradb/issues/610.
+// A document with nil fields should be returned.
+func TestQuerySimpleWithDefaultValue(t *testing.T) {
+	test := testUtils.QueryTestCase{
+		Description: "Simple query with default-value fields",
+		Query: `query {
+					users {
+						Name
+						Age
+						HeightM
+						Verified
+					}
+				}`,
+		Docs: map[int][]string{
+			0: {
+				`{ }`,
+			},
+		},
+		Results: []map[string]interface{}{},
+	}
+
+	executeTestCase(t, test)
+}