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[llvm-readobj]Test basic command-line handling 

There was no real testing for llvm-readobj/llvm-readelf's behaviour
under various bad inputs and command-line switches. This patch adds some
testing of this, along with basic testing of --version and --help.

Reviewed by: MaskRay, grimar

Differential Revision: https://reviews.llvm.org/D58455

llvm-svn: 354567
This commit is contained in:
James Henderson 2019-02-21 11:00:29 +00:00
parent 67bdfb0a59
commit 6561a823d2
1 changed files with 36 additions and 0 deletions
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36
llvm/test/tools/llvm-readobj/basic.test
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# Test case where input file does not exit.
RUN: not llvm-readobj %t.blah 2>&1 | FileCheck --check-prefix=ENOENT %s
ENOENT: {{.*}}.blah: {{[Nn]}}o such file or directory
# Test case where input file is too small to be a recognised object file.
RUN: touch %t.empty
RUN: not llvm-readobj %t.empty 2>&1 | FileCheck --check-prefix=EMPTY %s
EMPTY: {{.*}}.empty: The file was not recognized as a valid object file
# Test that unrecognised files in archives are ignored.
RUN: rm -f %t.a
RUN: llvm-ar rc %t.a %t.empty
RUN: llvm-readobj --all %t.a 2>&1 | FileCheck --check-prefix=NO-OUTPUT --allow-empty %s
NO-OUTPUT-NOT: {{.}}
# Test case where no switches are specified.
RUN: llvm-readobj %p/Inputs/trivial.obj.elf-x86-64 | FileCheck --check-prefix=HEADER %s
RUN: llvm-readelf %p/Inputs/trivial.obj.elf-x86-64 | FileCheck --check-prefix=NO-OUTPUT --allow-empty %s
HEADER: File: {{.*}}trivial.obj.elf-x86-64
HEADER: Format: ELF64-x86-64
HEADER: Arch: x86_64
HEADER: AddressSize: 64bit
# Test case where switch it not recognised.
RUN: not llvm-readobj --unknown-switch 2>&1 | FileCheck --check-prefix=UNKNOWN %s
UNKNOWN: Unknown command line argument '--unknown-switch'
# Test version switch.
RUN: llvm-readobj --version | FileCheck %s --check-prefix=VERSION
RUN: llvm-readelf --version | FileCheck %s --check-prefix=VERSION
VERSION: LLVM version
# Test help switch.
RUN: llvm-readobj --help | FileCheck %s --check-prefixes=HELP,USAGE-OBJ
RUN: llvm-readelf --help | FileCheck %s --check-prefixes=HELP,USAGE-ELF
HELP: OVERVIEW: LLVM Object Reader
USAGE-OBJ: llvm-readobj{{.*}} [options] <input object files>
USAGE-ELF: llvm-readelf{{.*}} [options] <input object files>