llvm-mirror/test/tools/llvm-strings/length.test
James Henderson 9faf6091cf [llvm-strings] Improve testing of llvm-strings
This patch tidies up the llvm-strings testing by:

1. Adding comments to every test.
2. Getting rid of canned input files, and having the tests generate
   them on the fly (this makes the tests self-contained).
3. Adding missing test coverage.
4. Renaming some tests that weren't clear as to their purpose.
5. Adding extra checking of various cases, formatting etc.
6. Removing a test that didn't seem to have any useful purpose for
   testing llvm-strings.

Reviewed by: rupprecht, grimar, MaskRay

Differential Revision: https://reviews.llvm.org/D66015

llvm-svn: 368555
2019-08-12 11:36:11 +00:00

47 lines
1.6 KiB
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## Show that llvm-strings prints only strings with length of at least the
## requested number of bytes.
RUN: echo a > %t
RUN: echo ab >> %t
RUN: echo abc >> %t
RUN: echo abcd >> %t
RUN: echo abcde >> %t
RUN: not llvm-strings -n 0 2>&1 %t | FileCheck --check-prefix CHECK-0 %s
RUN: llvm-strings -n 1 %t | FileCheck --check-prefix CHECK-1 %s --implicit-check-not={{.}}
RUN: llvm-strings -n 2 %t | FileCheck --check-prefix CHECK-2 %s --implicit-check-not={{.}}
RUN: llvm-strings -n 4 %t | FileCheck --check-prefix CHECK-4 %s --implicit-check-not={{.}}
RUN: llvm-strings -n 5 %t | FileCheck --check-prefix CHECK-5 %s --implicit-check-not={{.}}
RUN: llvm-strings -n 6 %t | FileCheck %s --implicit-check-not={{.}} --allow-empty
## Default is equivalent to -n 4.
RUN: llvm-strings %t | FileCheck --check-prefix CHECK-4 %s --implicit-check-not={{.}}
## Show --bytes works too.
RUN: llvm-strings --bytes 2 %t | FileCheck --check-prefix CHECK-2 %s --implicit-check-not={{.}}
## Show different syntaxes work.
RUN: llvm-strings --bytes=2 %t | FileCheck --check-prefix CHECK-2 %s --implicit-check-not={{.}}
RUN: llvm-strings -n=2 %t | FileCheck --check-prefix CHECK-2 %s --implicit-check-not={{.}}
CHECK-0: invalid minimum string length 0
CHECK-1: a
CHECK-1-NEXT: ab
CHECK-1-NEXT: abc
CHECK-1-NEXT: abcd
CHECK-1-NEXT: abcde
CHECK-2: ab
CHECK-2-NEXT: abc
CHECK-2-NEXT: abcd
CHECK-2-NEXT: abcde
CHECK-4: abcd
CHECK-4-NEXT: abcde
CHECK-5: abcde
## Show that a non-numeric argument is rejected.
RUN: not llvm-strings -n foo %t 2>&1 | FileCheck %s --check-prefix=ERR
ERR: llvm-strings{{.*}}: for the --bytes option: 'foo' value invalid for integer argument!