Package org.apache.calcite.test.fuzzer

Class RexProgramFuzzyTest

java.lang.Object

org.apache.calcite.test.RexProgramBuilderBase

org.apache.calcite.test.fuzzer.RexProgramFuzzyTest

public class RexProgramFuzzyTest
extends RexProgramBuilderBase

Validates that RexSimplify is able to deal with randomized RexNode. Note: the default fuzzing time is 5 seconds to keep overall test duration reasonable. The test starts from a random point every time, so the longer it runs the more errors it detects.

Note: The test is not included to CalciteSuite since it would fail every build (there are lots of issues with RexSimplify)

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	RexProgramFuzzyTest.TopN<E extends java.lang.Comparable<E>>	A bounded variation of PriorityQueue

Field Summary

Fields

Modifier and Type	Field	Description
private long	currentSeed
protected static org.slf4j.Logger	LOGGER
private static int	MAX_FAILURES
private static long	SEED
private java.util.PriorityQueue<SimplifyTask>	slowestTasks
private static org.apache.calcite.plan.Strong	STRONG
private static java.time.Duration	TEST_DURATION
private static long	TEST_ITERATIONS
private static int	TOPN_SLOWEST

Fields inherited from class org.apache.calcite.test.RexProgramBuilderBase

executor, falseLiteral, MAX_FIELDS, nullBool, nullInt, nullVarchar, rexBuilder, simplify, trueLiteral, typeFactory

Constructor Summary

Constructors

Constructor	Description
RexProgramFuzzyTest()

Method Summary

Modifier and Type	Method	Description
private void	checkUnknownAs(org.apache.calcite.rex.RexNode node)
private void	checkUnknownAs(org.apache.calcite.rex.RexNode node, org.apache.calcite.rex.RexUnknownAs unknownAs)
void	defaultFuzzTest()
private void	generateRexAndCheckTrueFalse(RexFuzzer fuzzer, java.util.Random r)
private void	nestedCalls(org.apache.calcite.rex.RexNode arg)
private static java.lang.String	nodeToString(org.apache.calcite.rex.RexNode node)
private void	runRexFuzzer(long startSeed, java.time.Duration testDuration, int maxFailures, long testIterations, int topnSlowest)
void	setUp()
void	singleFuzzyTest()
void	testFuzzy()
void	testNestedCalls()	Verifies IS TRUE(IS NULL(null)) kind of expressions up to 4 level deep.
private static void	trimStackTrace(java.lang.Throwable t, int maxStackLines)
private java.lang.String	unknownAsString(org.apache.calcite.rex.RexUnknownAs unknownAs)

Methods inherited from class org.apache.calcite.test.RexProgramBuilderBase

abstractCast, add, and, and, case_, case_, cast, coalesce, div, divInt, eq, ge, gt, in, input, isDistinctFrom, isFalse, isNotDistinctFrom, isNotFalse, isNotNull, isNotTrue, isNull, isTrue, isUnknown, le, literal, literal, literal, literal, literal, literal, literal, lt, mul, ne, not, null_, nullable, nullIf, or, or, plus, sub, tBoolean, tBoolean, tInt, tInt, tVarchar, tVarchar, unaryMinus, unaryPlus, vBool, vBool, vBoolNotNull, vBoolNotNull, vInt, vInt, vIntNotNull, vIntNotNull, vVarchar, vVarchar, vVarcharNotNull, vVarcharNotNull

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

LOGGER

protected static final org.slf4j.Logger LOGGER

TEST_DURATION

private static final java.time.Duration TEST_DURATION

TEST_ITERATIONS

private static final long TEST_ITERATIONS

MAX_FAILURES

private static final int MAX_FAILURES

TOPN_SLOWEST

private static final int TOPN_SLOWEST

SEED

private static final long SEED

slowestTasks

private java.util.PriorityQueue<SimplifyTask> slowestTasks

currentSeed

private long currentSeed

STRONG

private static final org.apache.calcite.plan.Strong STRONG

Constructor Detail

RexProgramFuzzyTest

public RexProgramFuzzyTest()

Method Detail

setUp

public void setUp()

Overrides:

setUp in class RexProgramBuilderBase

testNestedCalls

public void testNestedCalls()

Verifies IS TRUE(IS NULL(null)) kind of expressions up to 4 level deep.

nestedCalls

private void nestedCalls(org.apache.calcite.rex.RexNode arg)

checkUnknownAs

private void checkUnknownAs(org.apache.calcite.rex.RexNode node)

checkUnknownAs

private void checkUnknownAs(org.apache.calcite.rex.RexNode node,
                            org.apache.calcite.rex.RexUnknownAs unknownAs)

unknownAsString

@Nonnull
private java.lang.String unknownAsString(org.apache.calcite.rex.RexUnknownAs unknownAs)

nodeToString

private static java.lang.String nodeToString(org.apache.calcite.rex.RexNode node)

trimStackTrace

private static void trimStackTrace(java.lang.Throwable t,
                                   int maxStackLines)

defaultFuzzTest

public void defaultFuzzTest()

testFuzzy

public void testFuzzy()

runRexFuzzer

private void runRexFuzzer(long startSeed,
                          java.time.Duration testDuration,
                          int maxFailures,
                          long testIterations,
                          int topnSlowest)

generateRexAndCheckTrueFalse

private void generateRexAndCheckTrueFalse(RexFuzzer fuzzer,
                                          java.util.Random r)

singleFuzzyTest

public void singleFuzzyTest()