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Posted to commits@calcite.apache.org by GitBox <gi...@apache.org> on 2020/11/03 13:37:27 UTC
[GitHub] [calcite] qizhou92 commented on a change in pull request #2236: [CALCITE-3913] Test correctness using formal verification (Qi Zhou)
qizhou92 commented on a change in pull request #2236:
URL: https://github.com/apache/calcite/pull/2236#discussion_r516309298
##########
File path: core/src/test/java/org/apache/calcite/test/SmtLibTest.java
##########
@@ -0,0 +1,115 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to you under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.calcite.test;
+
+
+import org.apache.calcite.jdbc.JavaTypeFactoryImpl;
+import org.apache.calcite.rel.RelNode;
+import org.apache.calcite.rel.logical.LogicalFilter;
+import org.apache.calcite.rel.logical.LogicalProject;
+import org.apache.calcite.rel.type.RelDataType;
+import org.apache.calcite.rel.type.RelDataTypeFactory;
+import org.apache.calcite.rel.type.RelDataTypeSystem;
+import org.apache.calcite.rex.RexNode;
+import org.apache.calcite.test.verifier.RexToSymbolicColumn;
+import org.apache.calcite.test.verifier.SymbolicColumn;
+
+import com.microsoft.z3.BoolExpr;
+import com.microsoft.z3.Context;
+import com.microsoft.z3.Expr;
+import com.microsoft.z3.Solver;
+import com.microsoft.z3.Status;
+
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+/**
+ * Testing for integrating z3 with calcite to verify equivalence.
+ **/
+
+public class SmtLibTest {
+
+ static RelDataTypeFactory typeFactory = new JavaTypeFactoryImpl(RelDataTypeSystem.DEFAULT);
+
+ /**
+ * Check z3 dynamic library exits before run all other tests.
+ */
+ @BeforeAll static void testZ3Lib() throws Exception {
+ Context z3Context = new Context();
+ Expr x = z3Context.mkIntConst("x");
+ Expr one = z3Context.mkInt(1);
+ BoolExpr eq = z3Context.mkEq(x, one);
+ Solver solver = z3Context.mkSolver();
+ solver.add(eq);
+ assertEquals(solver.check(), Status.SATISFIABLE);
+ }
+
+ /** Converts a SQL string to a relational expression using mock schema. */
+ private static RelNode toRel(String sql) {
+ final SqlToRelTestBase test = new SqlToRelTestBase() {
+ };
+ return test.createTester().convertSqlToRel(sql).rel;
+ }
+
+ /** Converts a where condition string to a RexNode using mock schema on emp table. */
+ private static RexNode toRex(String cond) {
+ final String sql = "select *\n"
+ + "from emp where"
+ + cond;
+ final RelNode relNode = toRel(sql);
+ LogicalProject project = (LogicalProject) relNode;
+ LogicalFilter filter = (LogicalFilter) project.getInput();
+ return filter.getCondition();
+ }
+
+ private static boolean checkEqual(String cond1, String cond2) {
+ RexNode rexNode1 = toRex(cond1);
+ RexNode rexNode2 = toRex(cond2);
+ Context z3Context = new Context();
+ List<SymbolicColumn> inputSymbolicColumns = new ArrayList<>();
+ /** mock emp table, 8 columns with int type, since we only support numerical type for now **/
+ for (int i = 0; i < 8; i++) {
+ RelDataType intType = typeFactory.createJavaType(int.class);
+ SymbolicColumn inputColumn = SymbolicColumn.mkNewSymbolicColumn(z3Context, intType);
+ inputSymbolicColumns.add(inputColumn);
Review comment:
Hi, thank you for your comments. I use **RexProgramBuilderBase**, which solves the problem. And **RexProgramTestBase** is not a public class.
##########
File path: core/src/test/java/org/apache/calcite/test/SmtLibTest.java
##########
@@ -0,0 +1,115 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to you under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.calcite.test;
+
+
+import org.apache.calcite.jdbc.JavaTypeFactoryImpl;
+import org.apache.calcite.rel.RelNode;
+import org.apache.calcite.rel.logical.LogicalFilter;
+import org.apache.calcite.rel.logical.LogicalProject;
+import org.apache.calcite.rel.type.RelDataType;
+import org.apache.calcite.rel.type.RelDataTypeFactory;
+import org.apache.calcite.rel.type.RelDataTypeSystem;
+import org.apache.calcite.rex.RexNode;
+import org.apache.calcite.test.verifier.RexToSymbolicColumn;
+import org.apache.calcite.test.verifier.SymbolicColumn;
+
+import com.microsoft.z3.BoolExpr;
+import com.microsoft.z3.Context;
+import com.microsoft.z3.Expr;
+import com.microsoft.z3.Solver;
+import com.microsoft.z3.Status;
+
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+/**
+ * Testing for integrating z3 with calcite to verify equivalence.
+ **/
+
+public class SmtLibTest {
+
+ static RelDataTypeFactory typeFactory = new JavaTypeFactoryImpl(RelDataTypeSystem.DEFAULT);
+
+ /**
+ * Check z3 dynamic library exits before run all other tests.
+ */
+ @BeforeAll static void testZ3Lib() throws Exception {
+ Context z3Context = new Context();
+ Expr x = z3Context.mkIntConst("x");
+ Expr one = z3Context.mkInt(1);
+ BoolExpr eq = z3Context.mkEq(x, one);
+ Solver solver = z3Context.mkSolver();
+ solver.add(eq);
+ assertEquals(solver.check(), Status.SATISFIABLE);
+ }
+
+ /** Converts a SQL string to a relational expression using mock schema. */
+ private static RelNode toRel(String sql) {
+ final SqlToRelTestBase test = new SqlToRelTestBase() {
+ };
+ return test.createTester().convertSqlToRel(sql).rel;
+ }
+
+ /** Converts a where condition string to a RexNode using mock schema on emp table. */
+ private static RexNode toRex(String cond) {
+ final String sql = "select *\n"
+ + "from emp where"
+ + cond;
+ final RelNode relNode = toRel(sql);
+ LogicalProject project = (LogicalProject) relNode;
+ LogicalFilter filter = (LogicalFilter) project.getInput();
+ return filter.getCondition();
+ }
+
+ private static boolean checkEqual(String cond1, String cond2) {
+ RexNode rexNode1 = toRex(cond1);
+ RexNode rexNode2 = toRex(cond2);
+ Context z3Context = new Context();
+ List<SymbolicColumn> inputSymbolicColumns = new ArrayList<>();
+ /** mock emp table, 8 columns with int type, since we only support numerical type for now **/
+ for (int i = 0; i < 8; i++) {
+ RelDataType intType = typeFactory.createJavaType(int.class);
+ SymbolicColumn inputColumn = SymbolicColumn.mkNewSymbolicColumn(z3Context, intType);
+ inputSymbolicColumns.add(inputColumn);
Review comment:
Sorry, I am a little bit confused about how to skip test cases if the z3 dynamic library is not loaded by using @BeforeAll. It seems even I throw errors in the BeforeAll methods, it still fail the test cases, which break the whole CI.
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