vvysotskyi commented on a change in pull request #1714: DRILL-7048: Implement
JDBC Statement.setMaxRows() with System Option
URL: https://github.com/apache/drill/pull/1714#discussion_r269711132
##########
File path:
exec/jdbc/src/test/java/org/apache/drill/jdbc/PreparedStatementTest.java
##########
@@ -410,6 +417,155 @@ public void testNonTriggeredQueryTimeout() throws
SQLException {
}
}
+ ////////////////////////////////////////
+ // Query maxRows methods:
+
+ /**
+ * Test for reading of default max rows
+ */
+ @Test
+ public void testDefaultGetMaxRows() throws SQLException {
+ try (PreparedStatement pStmt =
connection.prepareStatement(SYS_OPTIONS_SQL)) {
+ int maxRowsValue = pStmt.getMaxRows();
+ assertEquals(0, maxRowsValue);
+ }
+ }
+
+ /**
+ * Test Invalid parameter by giving negative maxRows value
+ */
+ @Test
+ public void testInvalidSetMaxRows() throws SQLException {
+ try (PreparedStatement pStmt =
connection.prepareStatement(SYS_OPTIONS_SQL)) {
+ //Setting negative value
+ int valueToSet = -10;
+ try {
+ pStmt.setMaxRows(valueToSet);
+ } catch ( final SQLException e) {
+ assertThat( e.getMessage(), containsString("VALIDATION ERROR: Option
exec.query.max_rows must be between 0 and ") );
+ }
+ }
+ }
+
+ /**
+ * Test setting a valid maxRows value
+ */
+ @Test
+ public void testValidSetMaxRows() throws SQLException {
+ try (PreparedStatement pStmt =
connection.prepareStatement(SYS_OPTIONS_SQL)) {
+ //Setting positive value
+ int valueToSet = RANDOMIZER.nextInt(59)+1;
+ pStmt.setMaxRows(valueToSet);
+ assertEquals( valueToSet, pStmt.getMaxRows() );
Review comment:
```suggestion
assertEquals(valueToSet, pStmt.getMaxRows());
```
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