test_diagnosis.cpp File Reference

Unit tests for PROFINET diagnosis decoding and parsing. More...

#include <gtest/gtest.h>
#include "profinet/diagnosis.h"
#include "profinet/wire.h"

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Classes
class	DiagnosisTest

Functions
	TEST_F (DiagnosisTest, ChannelPropertiesFromUint16DecodesAllBitFields)
	TEST_F (DiagnosisTest, ChannelPropertiesFromUint16HandlesZeroValue)
	TEST_F (DiagnosisTest, DecodeChannelErrorTypeResolvesKnownAndRangeBasedFallbacks)
	TEST_F (DiagnosisTest, DecodeExtChannelErrorTypeUsesContextSpecificTables)
	TEST_F (DiagnosisTest, ParseDiagnosisBlockParsesSingleChannelDiagnosisEntry)
	TEST_F (DiagnosisTest, ParseDiagnosisBlockParsesExtChannelDiagnosisEntry)
	TEST_F (DiagnosisTest, ParseDiagnosisBlockLocationHeaderUpdatesLocation)
	TEST_F (DiagnosisTest, ParseDiagnosisBlockReturnsEmptyForTooShortData)
	TEST_F (DiagnosisTest, ParseDiagnosisSimpleStopsOnZeroFilledSentinelEntry)
	TEST_F (DiagnosisTest, DiagnosisDataMaintenanceFlagsReflectEntryFlags)
	TEST_F (DiagnosisTest, DiagnosisDataGetByChannelFiltersEntries)

Detailed Description

Unit tests for PROFINET diagnosis decoding and parsing.

Verifies the diagnosis data structures, error-type decoding, and parsing behavior provided by diagnosis.h.

The tests cover:

• Decoding ChannelProperties bit fields and zero/default values.
• Channel and extended channel error-type name resolution.
• Parsing standard ChannelDiagnosis entries.
• Parsing ExtChannelDiagnosis entries and extended error information.
• Handling API, slot, and subslot location headers.
• Handling truncated or insufficient diagnosis data.
• Parsing simple diagnosis blocks and stopping at zero-filled sentinels.
• Detection of maintenance-required and maintenance-demanded conditions.
• Filtering parsed diagnosis entries by channel number.

Definition in file test_diagnosis.cpp.

Function Documentation

TEST_F() [1/11]

TEST_F	(	DiagnosisTest	,
		ChannelPropertiesFromUint16DecodesAllBitFields
	)

Test:

ChannelProperties::from_uint16 decodes all bit fields

Definition at line 32 of file test_diagnosis.cpp.

References profinet::diagnosis::ChannelProperties::FromUint16().

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TEST_F() [2/11]

TEST_F	(	DiagnosisTest	,
		ChannelPropertiesFromUint16HandlesZeroValue
	)

Test:

ChannelProperties::from_uint16 handles zero value

Definition at line 56 of file test_diagnosis.cpp.

References profinet::diagnosis::ChannelProperties::FromUint16().

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TEST_F() [3/11]

TEST_F	(	DiagnosisTest	,
		DecodeChannelErrorTypeResolvesKnownAndRangeBasedFallbacks
	)

Test:

decode_channel_error_type resolves known and range-based fallbacks

Definition at line 66 of file test_diagnosis.cpp.

References profinet::diagnosis::DecodeChannelErrorType().

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TEST_F() [4/11]

TEST_F	(	DiagnosisTest	,
		DecodeExtChannelErrorTypeUsesContextSpecificTables
	)

Test:

decode_ext_channel_error_type uses context-specific tables

Definition at line 94 of file test_diagnosis.cpp.

References profinet::diagnosis::DecodeExtChannelErrorType().

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TEST_F() [5/11]

TEST_F	(	DiagnosisTest	,
		DiagnosisDataGetByChannelFiltersEntries
	)

Test:

DiagnosisData::get_by_channel filters entries

Definition at line 319 of file test_diagnosis.cpp.

References profinet::diagnosis::ParseDiagnosisBlock(), profinet::wire::PutU16(), and profinet::wire::PutU8().

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TEST_F() [6/11]

TEST_F	(	DiagnosisTest	,
		DiagnosisDataMaintenanceFlagsReflectEntryFlags
	)

Test:

DiagnosisData::has_maintenance_required / demanded reflect entry flags

Definition at line 294 of file test_diagnosis.cpp.

References profinet::diagnosis::ParseDiagnosisBlock(), profinet::wire::PutU16(), and profinet::wire::PutU8().

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TEST_F() [7/11]

TEST_F	(	DiagnosisTest	,
		ParseDiagnosisBlockLocationHeaderUpdatesLocation
	)

Test:

parse_diagnosis_block with API/Slot/Subslot location header updates location

Definition at line 224 of file test_diagnosis.cpp.

References profinet::diagnosis::ParseDiagnosisBlock(), profinet::wire::PutU16(), profinet::wire::PutU32(), and profinet::wire::PutU8().

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TEST_F() [8/11]

TEST_F	(	DiagnosisTest	,
		ParseDiagnosisBlockParsesExtChannelDiagnosisEntry
	)

Test:

parse_diagnosis_block parses ExtChannelDiagnosis entry

Definition at line 192 of file test_diagnosis.cpp.

References profinet::diagnosis::ParseDiagnosisBlock(), profinet::wire::PutU16(), and profinet::wire::PutU8().

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TEST_F() [9/11]

TEST_F	(	DiagnosisTest	,
		ParseDiagnosisBlockParsesSingleChannelDiagnosisEntry
	)

Test:

parse_diagnosis_block parses a single ChannelDiagnosis entry with block header

Definition at line 160 of file test_diagnosis.cpp.

References profinet::diagnosis::ParseDiagnosisBlock(), profinet::wire::PutU16(), and profinet::wire::PutU8().

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TEST_F() [10/11]

TEST_F	(	DiagnosisTest	,
		ParseDiagnosisBlockReturnsEmptyForTooShortData
	)

Test:

parse_diagnosis_block returns empty result for too-short data

Definition at line 253 of file test_diagnosis.cpp.

References profinet::diagnosis::ParseDiagnosisBlock().

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TEST_F() [11/11]

TEST_F	(	DiagnosisTest	,
		ParseDiagnosisSimpleStopsOnZeroFilledSentinelEntry
	)

Test:

parse_diagnosis_simple stops on zero-filled sentinel entry

Definition at line 264 of file test_diagnosis.cpp.

References profinet::diagnosis::ParseDiagnosisSimple(), profinet::wire::PutU16(), and profinet::wire::PutU8().

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