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De-duplicate the diagnostic-positions test files via define-based recompilation

Browse Source 
tests/src/unit-class_parser_diagnostic_positions.cpp and
tests/src/unit-diagnostic-positions-only.cpp were maintained as near-copies
of unit-class_parser.cpp and unit-diagnostic-positions.cpp respectively, and
had drifted: trailing-comma handling, the #5342 filter-array/filter-value
sections, and the cross-input-adapter diagnostics test were never ported to
the positions-enabled copy.

Fold the position-specific assertions into the base files, guarded by
#if JSON_DIAGNOSTIC_POSITIONS / #if JSON_DIAGNOSTICS, and compile each base
file a second time with the relevant macro set via CMake COMPILE_DEFINITIONS
(mirroring the existing test-comparison_legacy pattern) instead of
maintaining a separate source file. This removes the duplication and, as a
side effect, closes the coverage gaps above since the full test file now
compiles under JSON_DIAGNOSTIC_POSITIONS=1 as well.

Fixes #5417

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
This commit is contained in:
Niels Lohmann
2026-09-05 20:47:32 +02:00
parent 09b6b6b5ba
commit 6fb73ee33e
5 changed files with 297 additions and 2002 deletions
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tests/CMakeLists.txt
+18
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@@ -177,6 +177,24 @@ json_test_add_test_for(src/unit-comparison.cpp
MAIN test_main CXX_STANDARDS ${test_cxx_standards} ${test_force}
)
# test the parser again with JSON_DIAGNOSTIC_POSITIONS enabled
json_test_set_test_options(test-class_parser_diagnostic_positions
COMPILE_DEFINITIONS JSON_DIAGNOSTIC_POSITIONS=1
)
json_test_add_test_for(src/unit-class_parser.cpp
NAME test-class_parser_diagnostic_positions
MAIN test_main CXX_STANDARDS ${test_cxx_standards} ${test_force}
)
# test diagnostic positions again without regular diagnostics (JSON pointer paths)
json_test_set_test_options(test-diagnostic-positions_only
COMPILE_DEFINITIONS JSON_DIAGNOSTICS=0
)
json_test_add_test_for(src/unit-diagnostic-positions.cpp
NAME test-diagnostic-positions_only
MAIN test_main CXX_STANDARDS ${test_cxx_standards} ${test_force}
)
# *DO NOT* use json_test_set_test_options() below this line
#############################################################################