iceberg::test::MetricsTestBase Class Reference

Base test class for metrics testing, similar to Java's TestMetrics. More...

#include <metrics_test_base.h>

Inheritance diagram for iceberg::test::MetricsTestBase:

Protected Member Functions
virtual void	SetUp ()
virtual Result< Metrics >	GetMetrics (std::shared_ptr< Schema > schema, std::shared_ptr<::arrow::Array > records)=0
	Get metrics for the given schema and records.
virtual Result< Metrics >	GetMetrics (std::shared_ptr< Schema > schema, std::shared_ptr< MetricsConfig > config, std::shared_ptr<::arrow::Array > records)=0
	Get metrics with custom MetricsConfig.
virtual std::string	CreateOutputFile ()=0
	Create an output file for testing.
virtual Result< int >	GetSplitCount ()=0
	Get the number of row groups/splits in a file.
virtual bool	SupportsSmallRowGroups () const
	Whether the format supports small row groups for testing.
virtual bool	ReportsNanCounts () const
	Whether the format reports NaN counts for floating-point fields.
void	AssertCounts (int field_id, std::optional< int64_t > expected_value_count, std::optional< int64_t > expected_null_count, const Metrics &metrics)
void	AssertCounts (int field_id, std::optional< int64_t > expected_value_count, std::optional< int64_t > expected_null_count, std::optional< int64_t > expected_nan_count, const Metrics &metrics)
void	AssertColumnSizeFields (std::vector< int32_t > expected_field_ids, const Metrics &metrics)
template<typename T >
void	AssertBounds (int field_id, std::shared_ptr< PrimitiveType > type, std::optional< T > expected_lower, std::optional< T > expected_upper, const Metrics &metrics)
std::shared_ptr<::arrow::Array >	CreateRecordArrays (const std::shared_ptr<::arrow::Schema > &arrow_schema, const std::string &json_data)
void	MetricsForRepeatedValues ()
void	MetricsForTopLevelFields ()
void	MetricsForDecimals ()
void	MetricsForNestedStructFields ()
void	MetricsModeForNestedStructFields ()
void	MetricsForListAndMapElements ()
void	MetricsForNullColumns ()
void	MetricsForNaNColumns ()
void	ColumnBoundsWithNaNValueAtFront ()
void	ColumnBoundsWithNaNValueInMiddle ()
void	ColumnBoundsWithNaNValueAtEnd ()
void	MetricsForTopLevelWithMultipleRowGroup ()
void	MetricsForNestedStructFieldsWithMultipleRowGroup ()
void	NoneMetricsMode ()
void	CountsMetricsMode ()
void	FullMetricsMode ()
void	TruncateStringMetricsMode ()
void	TruncateBinaryMetricsMode ()

Static Protected Member Functions
static std::shared_ptr< Schema >	SimpleSchema ()
static std::shared_ptr< Schema >	NestedSchema ()
static std::shared_ptr< Schema >	FloatDoubleSchema ()

Protected Attributes
std::shared_ptr< FileIO >	file_io_
std::string	temp_dir_
std::string	path_

Detailed Description

Base test class for metrics testing, similar to Java's TestMetrics.

This class provides common test infrastructure and helper methods for testing metrics collection across different file formats (Parquet, Avro, ORC).

Member Function Documentation

CreateOutputFile()

virtual std::string iceberg::test::MetricsTestBase::CreateOutputFile ( )

protectedpure virtual

Create an output file for testing.

Implemented in iceberg::test::ParquetMetricsTest.

GetMetrics() [1/2]

virtual Result< Metrics > iceberg::test::MetricsTestBase::GetMetrics ( std::shared_ptr< Schema >  schema, std::shared_ptr< MetricsConfig >  config, std::shared_ptr<::arrow::Array >  records  )

protectedpure virtual

Get metrics with custom MetricsConfig.

Implemented in iceberg::test::ParquetMetricsTest.

GetMetrics() [2/2]

virtual Result< Metrics > iceberg::test::MetricsTestBase::GetMetrics ( std::shared_ptr< Schema >  schema, std::shared_ptr<::arrow::Array >  records  )

protectedpure virtual

Get metrics for the given schema and records.

Implemented in iceberg::test::ParquetMetricsTest.

GetSplitCount()

virtual Result< int > iceberg::test::MetricsTestBase::GetSplitCount ( )

protectedpure virtual

Get the number of row groups/splits in a file.

Implemented in iceberg::test::ParquetMetricsTest.

ReportsNanCounts()

virtual bool iceberg::test::MetricsTestBase::ReportsNanCounts ( ) const

inlineprotectedvirtual

Whether the format reports NaN counts for floating-point fields.

Reimplemented in iceberg::test::ParquetMetricsTest.

SupportsSmallRowGroups()

virtual bool iceberg::test::MetricsTestBase::SupportsSmallRowGroups ( ) const

inlineprotectedvirtual

Whether the format supports small row groups for testing.

Reimplemented in iceberg::test::ParquetMetricsTest.

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The documentation for this class was generated from the following files:

• iceberg/test/metrics_test_base.h
• iceberg/test/metrics_test_base.cc