com.bigdata.bop.solutions

Class TestGroupByRewriter

java.lang.Object

junit.framework.Assert

junit.framework.TestCase

junit.framework.TestCase2

com.bigdata.bop.solutions.TestGroupByRewriter

All Implemented Interfaces:

junit.framework.Test

public class TestGroupByRewriter
extends TestCase2

Test suite for GroupByRewriter.

Note: This test suite is actually written at the GroupByRewriter.rewrite(IValueExpression, IVariableFactory, LinkedHashMap) and GroupByRewriter.rewrite(IConstraint, IVariableFactory, LinkedHashMap) level (those are static methods). This is good, but we do not have unit tests at the GroupByRewriter level.

Version:

$Id$

Author:

Bryan Thompson

Nested Class Summary

Nested classes/interfaces inherited from class junit.framework.TestCase2

TestCase2.MyProperties, TestCase2.RandomType

Field Summary

Fields inherited from class junit.framework.TestCase2

_randomType, log

Constructor Summary

Constructors

Constructor and Description
TestGroupByRewriter()
TestGroupByRewriter(String name)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	setUp()
protected void	tearDown()
void	test_constant_not_rewritten() Test that a bare constant is NOT rewritten.
void	test_eliminate_duplicate_aggregate_expressions() Test elimination of duplicate IAggregate expressions.
void	test_lift_aggregate_expression_nested_in_aggregateExpr() Test lifting of nested IAggregate expressions:
void	test_lift_aggregate_expression_nested_in_plain_valueExpr() Test lifting of IAggregate expressions within value expressions:
void	test_rewrite_lift_bare_aggregate_expression() Test lifting of bare IAggregate expression:
void	test_variable_not_rewritten() Test that a bare variable is NOT rewritten.
void	test_with_having() Test that IAggregate expressions are also lifted out of a HAVING clause.

Methods inherited from class junit.framework.TestCase2

assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEqualsWithinUlps, assertSameArray, assertSameArray, assertSameBigDecimal, assertSameBigDecimal, assertSameBigInteger, assertSameBigInteger, assertSameIterator, assertSameIterator, assertSameIteratorAnyOrder, assertSameIteratorAnyOrder, assertSameValue, assertSameValue, assertZeroUlps, assertZeroUlps, fail, getInnerCause, getNormalInt, getProjectBuildPath, getProperties, getRandomObject, getRandomObject, getRandomOrder, getRandomString, getTestInputStream, getTestResource, getTestResource, getUlps, getUlps, isDEBUG, isDEBUG, isINFO, isINFO, isInnerCause, logProperties

Methods inherited from class junit.framework.TestCase

assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertFalse, assertFalse, assertNotNull, assertNotNull, assertNotSame, assertNotSame, assertNull, assertNull, assertSame, assertSame, assertTrue, assertTrue, countTestCases, createResult, fail, fail, failNotEquals, failNotSame, failSame, format, getName, run, run, runBare, runTest, setName, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

TestGroupByRewriter

public TestGroupByRewriter()

TestGroupByRewriter

public TestGroupByRewriter(String name)

Parameters:

name -

Method Detail

setUp

protected void setUp()
              throws Exception

Overrides:

setUp in class junit.framework.TestCase

Throws:

Exception

tearDown

protected void tearDown()
                 throws Exception

Overrides:

tearDown in class junit.framework.TestCase

Throws:

Exception

test_variable_not_rewritten

public void test_variable_not_rewritten()

Test that a bare variable is NOT rewritten.

 SELECT ?x GROUP BY ?x
 

test_constant_not_rewritten

public void test_constant_not_rewritten()

Test that a bare constant is NOT rewritten.

 SELECT 12
 

test_rewrite_lift_bare_aggregate_expression

public void test_rewrite_lift_bare_aggregate_expression()

Test lifting of bare IAggregate expression:

 SELECT SUM(?x) as ?y
 

is rewritten as

 aggExp := SUM(?x) as ?_0
 select := ?_0 as ?y
 

test_with_having

public void test_with_having()

Test that IAggregate expressions are also lifted out of a HAVING clause.

 SELECT ?org
 GROUP BY ?org
 HAVING sum(?x)>10
 

test_eliminate_duplicate_aggregate_expressions

public void test_eliminate_duplicate_aggregate_expressions()

Test elimination of duplicate IAggregate expressions.

 SELECT SUM(?x) as ?y, SUM(x) as ?z
 

test_lift_aggregate_expression_nested_in_plain_valueExpr

public void test_lift_aggregate_expression_nested_in_plain_valueExpr()

Test lifting of IAggregate expressions within value expressions:

 SELECT 1+SUM(?x) as ?y
 

test_lift_aggregate_expression_nested_in_aggregateExpr

public void test_lift_aggregate_expression_nested_in_aggregateExpr()

Test lifting of nested IAggregate expressions:

 SELECT SUM(x+MIN(x))