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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
# In default configuration we could match "LLVM version", but the "LLVM" part
# can be changed with PACKAGE_NAME in CMake, so we match only version.
VERSION: 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>