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Introduce "generator expressions" to add_test()

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This introduces a new syntax called "generator expressions" to the test
COMMAND option of the add_test(NAME) command mode.  These expressions
have a syntax like $<TARGET_FILE:mytarget> and are evaluated during
build system generation.  This syntax allows per-configuration target
output files to be referenced in test commands and arguments.
This commit is contained in:
Brad King
2009-08-11 09:54:56 -04:00
parent 463b3f03bd
commit d2e1f2b4d6
6 changed files with 284 additions and 2 deletions
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23
Source/cmAddTestCommand.h
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@@ -79,6 +79,29 @@ public:
"of the executable created at build time. "
"If a CONFIGURATIONS option is given then the test will be executed "
"only when testing under one of the named configurations."
"\n"
"Arguments after COMMAND may use \"generator expressions\" with the "
"syntax \"$<...>\". "
"These expressions are evaluted during build system generation and "
"produce information specific to each generated build configuration. "
"Valid expressions are:\n"
" $<CONFIGURATION> = configuration name\n"
" $<TARGET_FILE:tgt> = main file (.exe, .so.1.2, .a)\n"
" $<TARGET_LINKER_FILE:tgt> = file used to link (.a, .lib, .so)\n"
" $<TARGET_SONAME_FILE:tgt> = file with soname (.so.3)\n"
"where \"tgt\" is the name of a target. "
"Target file expressions produce a full path, but _DIR and _NAME "
"versions can produce the directory and file name components:\n"
" $<TARGET_FILE_DIR:tgt>/$<TARGET_FILE_NAME:tgt>\n"
" $<TARGET_LINKER_FILE_DIR:tgt>/$<TARGET_LINKER_FILE_NAME:tgt>\n"
" $<TARGET_SONAME_FILE_DIR:tgt>/$<TARGET_SONAME_FILE_NAME:tgt>\n"
"Example usage:\n"
" add_test(NAME mytest\n"
" COMMAND testDriver --config $<CONFIGURATION>\n"
" --exe $<TARGET_FILE:myexe>)\n"
"This creates a test \"mytest\" whose command runs a testDriver "
"tool passing the configuration name and the full path to the "
"executable file produced by target \"myexe\"."
;
}