@Test
    void requireThatSameDataTypeIsOK() throws Exception {
        Fixture f = new Fixture("field f1 type string { indexing: summary }",
                "field f1 type string { indexing: summary }");
        f.assertValidation();
    }
Test validation of changes between a current and next document type used in a document database.

@author toregge
config-model/src/test/java/com/yahoo/vespa/model/application/validation/change/search/DocumentTypeChangeValidatorTest.java