test_rt.cpp File Reference

Unit tests for PROFINET RT_CLASS_1 cyclic frame handling and IO data layout. More...

#include <gtest/gtest.h>
#include "profinet/rpc.h"
#include "profinet/rt.h"

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Classes
class	RTTest

Functions
	TEST_F (RTTest, RTFrameRoundTrips)
	TEST_F (RTTest, RTFrameRejectsTooShortData)
	TEST_F (RTTest, BuildAndParseEthernetFrameRoundTrips)
	TEST_F (RTTest, ParseEthernetFrameRejectsNonProfinetEthertype)
	TEST_F (RTTest, CyclicDataBuilderSetGetDataRoundTripsThroughSwap)
	TEST_F (RTTest, CyclicDataBuilderRejectsUnknownSlotSubslot)
	TEST_F (RTTest, BuildReturnsStablePublishedSnapshot)
	TEST_F (RTTest, ConcurrentSetDataAndBuildIsRaceFree)
	TEST_F (RTTest, DISABLED_BuildIocrConfigsComputesExpectedFrameOffsets)

Detailed Description

Unit tests for PROFINET RT_CLASS_1 cyclic frame handling and IO data layout.

Verifies RT frame serialization and parsing, Ethernet frame handling, and cyclic process-data buffer management provided by rt.h.

The tests cover:

• RTFrame serialization/deserialization round-trips.
• RT frame status flag interpretation.
• Rejection of truncated RT frames.
• PROFINET Ethernet frame construction and parsing.
• Rejection of Ethernet frames with a non-PROFINET EtherType.
• CyclicDataBuilder process-data and IOPS handling across buffer swaps.
• Rejection of unknown slot/subslot mappings.
• IOCR configuration and frame-offset calculation from configured I/O slots.

Definition in file test_rt.cpp.

Function Documentation

TEST_F() [1/9]

TEST_F	(	RTTest	,
		BuildAndParseEthernetFrameRoundTrips
	)

Test:

build_ethernet_frame / parse_ethernet_frame round-trip

Definition at line 64 of file test_rt.cpp.

References profinet::rt::BuildEthernetFrame(), profinet::rt::DATA_STATUS_VALID, frame, profinet::rt::RTFrame::frameId, profinet::rt::ParseEthernetFrame(), and profinet::String2Mac().

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TEST_F() [2/9]

TEST_F	(	RTTest	,
		BuildReturnsStablePublishedSnapshot
	)

Definition at line 141 of file test_rt.cpp.

References profinet::rt::CyclicDataBuilder::Build(), profinet::rt::IOCRConfig::dataLength, profinet::rt::IOCRConfig::objects, profinet::rt::CyclicDataBuilder::SetData(), and profinet::rt::CyclicDataBuilder::Swap().

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TEST_F() [3/9]

TEST_F	(	RTTest	,
		ConcurrentSetDataAndBuildIsRaceFree
	)

Definition at line 158 of file test_rt.cpp.

References profinet::rt::IOCRConfig::dataLength, profinet::rt::IOCRConfig::objects, and profinet::rt::CyclicDataBuilder::Swap().

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TEST_F() [4/9]

TEST_F	(	RTTest	,
		CyclicDataBuilderRejectsUnknownSlotSubslot
	)

Test:

CyclicDataBuilder rejects unknown slot/subslot

Definition at line 131 of file test_rt.cpp.

References profinet::rt::IOCRConfig::dataLength, and profinet::rt::CyclicDataBuilder::SetData().

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TEST_F() [5/9]

TEST_F	(	RTTest	,
		CyclicDataBuilderSetGetDataRoundTripsThroughSwap
	)

Test:

CyclicDataBuilder set/get data round-trips through swap

Definition at line 101 of file test_rt.cpp.

References profinet::rt::CyclicDataBuilder::Build(), profinet::rt::IOCRConfig::dataLength, profinet::rt::CyclicDataBuilder::GetData(), profinet::rt::IOXS_GOOD, profinet::rt::IOCRConfig::objects, profinet::rt::CyclicDataBuilder::SetData(), profinet::rt::CyclicDataBuilder::SetIops(), and profinet::rt::CyclicDataBuilder::Swap().

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TEST_F() [6/9]

TEST_F	(	RTTest	,
		DISABLED_BuildIocrConfigsComputesExpectedFrameOffsets
	)

Test:

build_iocr_configs computes frame offsets matching RPCCon's IOCR block builder

Definition at line 184 of file test_rt.cpp.

References profinet::rt::BuildIocrConfigs().

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TEST_F() [7/9]

TEST_F	(	RTTest	,
		ParseEthernetFrameRejectsNonProfinetEthertype
	)

Test:

parse_ethernet_frame rejects non-PROFINET ethertype

Definition at line 88 of file test_rt.cpp.

References profinet::rt::ParseEthernetFrame().

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TEST_F() [8/9]

TEST_F	(	RTTest	,
		RTFrameRejectsTooShortData
	)

Test:

RTFrame::from_bytes rejects too-short data

Definition at line 58 of file test_rt.cpp.

References profinet::rt::RTFrame::FromBytes().

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TEST_F() [9/9]

TEST_F	(	RTTest	,
		RTFrameRoundTrips
	)

Test:

RTFrame round-trips through to_bytes/from_bytes

Definition at line 31 of file test_rt.cpp.

References profinet::rt::RTFrame::cycleCounter, profinet::rt::DATA_STATUS_PROVIDER_RUN, profinet::rt::DATA_STATUS_VALID, profinet::rt::RTFrame::dataStatus, frame, profinet::rt::RTFrame::frameId, profinet::rt::RTFrame::FromBytes(), profinet::rt::RTFrame::IsOk(), profinet::rt::RTFrame::IsRunning(), profinet::rt::RTFrame::IsValid(), and profinet::rt::RTFrame::payload.

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