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Diffstat (limited to 'tests/misc/echo.sh')
| -rwxr-xr-x | tests/misc/echo.sh | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/tests/misc/echo.sh b/tests/misc/echo.sh new file mode 100755 index 0000000..1784c0c --- /dev/null +++ b/tests/misc/echo.sh @@ -0,0 +1,99 @@ +#!/bin/sh +# basic tests for echo + +# Copyright (C) 2018-2020 Free Software Foundation, Inc. + +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <https://www.gnu.org/licenses/>. + +prog='env echo' + +. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src +print_ver_ echo + + +# Verify the methods of specifying "Escape": +# Note 4 octal digits are allowed (unlike printf which uses up to 3) +printf '%s\n' . . . . . | tr . '\033' > exp +$prog -n -e '\x1b\n\e\n\33\n\033\n\0033\n' > out || fail=1 +compare exp out || fail=1 + +# Incomplete hex escapes are output as is (unlike printf) +printf '\\x\n' > exp +$prog -n -e '\x\n' > out || fail=1 +compare exp out || fail=1 + +# Always output -- (unlike printf) +$prog -- 'foo' > out || fail=1 +$prog -n -e -- 'foo\n' >> out || fail=1 +cat <<\EOF > exp +-- foo +-- foo +EOF +compare exp out || fail=1 + +# Ensure \c stops processing +$prog -e 'foo\n\cbar' > out || fail=1 +printf 'foo\n' > exp +compare exp out || fail=1 + +# With POSIXLY_CORRECT: +# only -n as the first (separate) option enables option processing +# -E is ignored +# escapes are processed by default +POSIXLY_CORRECT=1 $prog -n -E 'foo\n' > out || fail=1 +POSIXLY_CORRECT=1 $prog -nE 'foo' >> out || fail=1 +POSIXLY_CORRECT=1 $prog -E -n 'foo' >> out || fail=1 +POSIXLY_CORRECT=1 $prog --version >> out || fail=1 +cat <<\EOF > exp +foo +-nE foo +-E -n foo +--version +EOF +compare exp out || fail=1 + +# Further test coverage. +# Output a literal '-' (on a line itself). +$prog - > out || fail=1 +# Output a literal backslash '\', no newline. +$prog -n -e '\\' >> out || fail=1 +# Output an empty line (merely to have a newline after the previous test). +$prog >> out || fail=1 +# Test other characters escaped by a backslash: +# \a hex 07 alert, bell +# \b hex 08 backspace +# \e hex 1b escape +# \f hex 0c form feed +# \n hex 0a new line +# \r hex 0d carriage return +# \t hex 09 horizontal tab +# \v hex 0b vertical tab +# Convert output, yet checking the exit status of $prog. +{ $prog -n -e '\a\b\e\f\n\r\t\v' || touch fail; } | od -tx1 >> out || fail=1 +test '!' -f fail || fail=1 +# Output hex values which contain hexadecimal characters to test hextobin(). +# Hex values 4a through 4f are ASCII "JKLMNO". +$prog -n -e '\x4a\x4b\x4c\x4d\x4e\x4f\x4A\x4B\x4C\x4D\x4E\x4F' >> out || fail=1 +# Output another newline. +$prog >> out || fail=1 +cat <<\EOF > exp +- +\ +0000000 07 08 1b 0c 0a 0d 09 0b +0000010 +JKLMNOJKLMNO +EOF +compare exp out || fail=1 + +Exit $fail |