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lldb/test/Shell/Breakpoint/breakpoint-command.test adds a python
command, to be executed when a breakpoint hits, that writes out a
number. It then runs, hits the breakpoint and checks that the number is
present exactly once.
The problem is that on some systems the test can be run in a filepath
that happens to contain the number (e.g. auto-generated directory
names). The number is then detected multiple times and the test fails.
This patch fixes the issue by using a string instead, particularly a
string with spaces, which is very unlikely to be auto-generated by any
system.
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My local build is with -DLLVM_ENABLE_PROJECTS=lldb, but I don't compile
with -DLLDB_ENABLE_PYTHON=True or -DLLDB_ENABLE_LUA=True. This results
in there being no script interpreter.
The test lldb/test/Shell/Breakpoint/breakpoint-command.test has an
implicit dependency on a script interpreter being available.
This patch makes that dependency clear. If you have a script
interpreter, the test gets run, otherwise it gets skipped. This means
that folks (like me) who naively use -DLLVM_ENABLE_PROJECTS=lldb can
continue to run check-all without breakages.
Reviewed By: JDevlieghere
Differential Revision: https://reviews.llvm.org/D139463
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The functionality is fine (we don't run the breakpoint command twice), but this test forgot to call `FileCheck` and isn't checking the same value isn't there twice..
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When executing a script command in HandleCommand(s) we currently print
its output twice
You can see this issue in action when adding a breakpoint command:
(lldb) b main
Breakpoint 1: where = main.out`main + 13 at main.cpp:2:3, address = 0x0000000100003fad
(lldb) break command add 1 -o "script print(\"Hey!\")"
(lldb) r
Process 76041 launched: '/tmp/main.out' (x86_64)
Hey!
(lldb) script print("Hey!")
Hey!
Process 76041 stopped
The issue is caused by HandleCommands using a temporary
CommandReturnObject and one of the commands (`script` in this case)
setting an immediate output stream. This causes the result to be printed
twice: once directly to the immediate output stream and once when
printing the result of HandleCommands.
This patch fixes the issue by introducing a new option to suppress
immediate output for temporary CommandReturnObjects.
Differential revision: https://reviews.llvm.org/D103349
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