changed constraint syntax

Author: vga91

core/src/test/java/apoc/export/csv/ImportCsvTest.java

@@ -49,6 +49,7 @@
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertThat;
+import static org.junit.Assert.fail;
 
 public class ImportCsvTest {
     public static final String BASE_URL_FILES = "src/test/resources/csv-inputs";
@@ -221,7 +222,7 @@ private void testSkipLine(long skipLine, int nodes) {
     @Test
     public void issue2826WithImportCsv() {
         db.executeTransactionally("CREATE (n:Person {name: 'John'})");
-        db.executeTransactionally("CREATE CONSTRAINT unique_person ON (n:Person) ASSERT n.name IS UNIQUE");
+        db.executeTransactionally("CREATE CONSTRAINT unique_person FOR (n:Person) REQUIRE n.name IS UNIQUE");
         try {
             TestUtil.testCall(db,
                     "CALL apoc.import.csv([{fileName: $file, labels: ['Person']}], [], $config)",

core/src/test/java/apoc/export/graphml/ExportGraphMLTest.java

@@ -347,7 +347,7 @@ public void testImportGraphMLWithEdgeWithoutDataKeys() throws Exception {
     @Test
     public void issue2797WithImportGraphMl() {
         db.executeTransactionally("CREATE (n:FOO {name: 'foo'})");
-        db.executeTransactionally("CREATE CONSTRAINT unique_foo ON (n:FOO) ASSERT n.name IS UNIQUE");
+        db.executeTransactionally("CREATE CONSTRAINT unique_foo FOR (n:FOO) REQUIRE n.name IS UNIQUE");
         try {
             TestUtil.testCall(db,
                     "CALL apoc.import.graphml($file, {readLabels:true})",