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-rwxr-xr-xtests/misc/expand.pl120
-rwxr-xr-xtests/misc/unexpand.pl36
2 files changed, 155 insertions, 1 deletions
diff --git a/tests/misc/expand.pl b/tests/misc/expand.pl
index a6b4a4d61..8a9cad144 100755
--- a/tests/misc/expand.pl
+++ b/tests/misc/expand.pl
@@ -18,7 +18,11 @@
use strict;
+my $limits = getlimits ();
+my $UINTMAX_OFLOW = $limits->{UINTMAX_OFLOW};
+
(my $program_name = $0) =~ s|.*/||;
+my $prog = 'expand';
# Turn off localization of executable's output.
@ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;
@@ -27,13 +31,127 @@ my @Tests =
(
['t1', '--tabs=3', {IN=>"a\tb"}, {OUT=>"a b"}],
['t2', '--tabs=3,6,9', {IN=>"a\tb\tc\td\te"}, {OUT=>"a b c d e"}],
+ ['t3', '--tabs="3 6 9"', {IN=>"a\tb\tc\td\te"}, {OUT=>"a b c d e"}],
+ # Leading space/commas are silently ignored; Mixing space/commas is allowed.
+ # (a side-effect of allowing direct "-3,9" parameter).
+ ['t4', '--tabs=", 3,6 9"', {IN=>"a\tb\tc\td\te"}, {OUT=>"a b c d e"}],
+ # tab stops parameter without values
+ ['t5', '--tabs=""', {IN=>"a\tb\tc"}, {OUT=>"a b c"}],
+ ['t6', '--tabs=","', {IN=>"a\tb\tc"}, {OUT=>"a b c"}],
+ ['t7', '--tabs=" "', {IN=>"a\tb\tc"}, {OUT=>"a b c"}],
+
+ # Input field wider than the specified tab list
+ ['t8', '--tabs=6,9', {IN=>"a\tbbbbbbbbbbbbb\tc"},
+ {OUT=>"a bbbbbbbbbbbbb c"}],
+
['i1', '--tabs=3 -i', {IN=>"\ta\tb"}, {OUT=>" a\tb"}],
['i2', '--tabs=3 -i', {IN=>" \ta\tb"}, {OUT=>" a\tb"}],
+
+ # Undocumented feature:
+ # treat "expand -7" as "expand --tabs 7" ,
+ # and "expand -90" as "expand --tabs 90",
+ ['u1', '-3', {IN=>"a\tb\tc"}, {OUT=>"a b c"}],
+ ['u2', '-4 -9', {IN=>"a\tb\tc"}, {OUT=>"a b c"}],
+ ['u3', '-11', {IN=>"a\tb\tc"}, {OUT=>"a b c"}],
+ # Test all digits (for full code coverage)
+ ['u4', '-2 -6', {IN=>"a\tb\tc"}, {OUT=>"a b c"}],
+ ['u5', '-7', {IN=>"a\tb"}, {OUT=>"a b"}],
+ ['u6', '-8', {IN=>"a\tb"}, {OUT=>"a b"}],
+ # This syntax is handled internally as "-3, -9"
+ ['u7', '-3,9', {IN=>"a\tb\tc"}, {OUT=>"a b c"}],
+
+ # Multiple non-empty files
+ ['f1', '--tabs=4',
+ {IN=>{"in1" => "a\tb\n"}}, {IN=>{"in2" => "c\td\n"}},
+ {OUT=>"a b\nc d\n"}],
+ # Multiple files, first file is empty
+ ['f2', '--tabs=4',
+ {IN=>{"in1" => ""}}, {IN=>{"in2" => "c\td\n"}},
+ {OUT=>"c d\n"}],
+ # Multiple files, second file is empty
+ ['f3', '--tabs=4',
+ {IN=>{"in1" => "a\tb\n"}}, {IN=>{"in2" => ""}},
+ {OUT=>"a b\n"}],
+
+
+ # Test '\b' (back-space) - subtract one column.
+ #
+ # Note:
+ # In a terminal window, 'expand' will appear to erase the 'a' characters
+ # due to overwriting them with spaces:
+ #
+ # $ printf 'aaa\b\b\bc\td\n'
+ # caa d
+ # $ printf 'aaa\b\b\bc\td\n' | expand
+ # c d
+ #
+ # However the characters are all printed:
+ #
+ # $ printf 'aaa\b\b\bc\td\n' | expand | od -An -ta
+ # a a a bs bs bs c sp sp sp sp sp sp sp d nl
+ #
+ # If users ever report a problem with these tests and just
+ # copy&paste from the terminal, their report will be confusing
+ # (the 'a' will not appear).
+ #
+ # To see an example, enable the 'b-confusing' test, and examine the
+ # reported log:
+ #
+ # expand.pl: test b-confusing: stdout mismatch
+ # *** b-confusing.2 Fri Jun 24 15:43:21 2016
+ # --- b-confusing.O Fri Jun 24 15:43:21 2016
+ # ***************
+ # *** 1 ****
+ # ! c d
+ # --- 1 ----
+ # ! c d
+ #
+ # ['b-confusing','', {IN=>"aaa\b\b\bc\td\n"}, {OUT=>"c d\n"}],
+
+ ['b1','', {IN=>"aaa\b\b\bc\td\n"}, {OUT=>"aaa\b\b\bc d\n"}],
+
+ # \b as first character, when column is zero
+ ['b2','', {IN=>"\bc\td"}, {OUT=>"\bc d"}],
+
+ # Testing tab list adjusted due to backspaces
+ # ('b3' is the baseline without backspaces).
+ ['b3','--tabs 2,4,6,10',
+ {IN=>"1\t2\t3\t4\t5\n" .
+ "a\tb\tc\td\te\n"},
+ {OUT=>"1 2 3 4 5\n" .
+ "a b c d e\n"}],
+
+ # On screen this will appear the same as 'b3'
+ ['b4','--tabs 2,4,6,10',
+ {IN=>"1\t2\t3\t4\t5\n" .
+ "a\tbHELLO\b\b\b\b\b\tc\td\te\n"},
+ {OUT=>"1 2 3 4 5\n" .
+ "a bHELLO\b\b\b\b\b c d e\n"}],
+
+ # On screen on 'bHE' will appear (LLO overwritten by spaces),
+ # 'c' should align with 4, 'd' with 5:
+ # 1 2 3 4 5
+ # a bHE c d e
+ ['b5','--tabs 2,4,6,10',
+ {IN=>"1\t2\t3\t4\t5\n" .
+ "a\tbHELLO\b\b\b\tc\td\te\n"},
+ {OUT=>"1 2 3 4 5\n" .
+ "a bHELLO\b\b\b c d e\n"}],
+
+
+ # Test errors
+ ['e1', '--tabs="a"', {IN=>''}, {OUT=>''}, {EXIT=>1},
+ {ERR => "$prog: tab size contains invalid character(s): 'a'\n"}],
+ ['e2', "-t $UINTMAX_OFLOW", {IN=>''}, {OUT=>''}, {EXIT=>1},
+ {ERR => "$prog: tab stop is too large '$UINTMAX_OFLOW'\n"}],
+ ['e3', '--tabs=0', {IN=>''}, {OUT=>''}, {EXIT=>1},
+ {ERR => "$prog: tab size cannot be 0\n"}],
+ ['e4', '--tabs=3,3', {IN=>''}, {OUT=>''}, {EXIT=>1},
+ {ERR => "$prog: tab sizes must be ascending\n"}],
);
my $save_temps = $ENV{DEBUG};
my $verbose = $ENV{VERBOSE};
-my $prog = 'expand';
my $fail = run_tests ($program_name, $prog, \@Tests, $save_temps, $verbose);
exit $fail;
diff --git a/tests/misc/unexpand.pl b/tests/misc/unexpand.pl
index c592c5a52..6ba6d405c 100755
--- a/tests/misc/unexpand.pl
+++ b/tests/misc/unexpand.pl
@@ -90,6 +90,42 @@ my @Tests =
# setting of e.g., _POSIX2_VERSION=1.
['obs-ovflo', "-$limits->{UINTMAX_OFLOW}", {IN=>''}, {OUT=>''},
{EXIT => 1}, {ERR => "$prog: tab stop value is too large\n"}],
+
+
+ # Test input with backspaces '\b' ('bs1' is the baseline, without \b)
+ # Note: If users report errors in these tests, copy&pasting results from
+ # their terminate output might be confusing due to '\b' overriding
+ # characters. For details see '\b' tests in 'expand.pl'.
+ ['bs1', '-a -t4', {IN=>"aa c\n"}, {OUT=>"aa\tc\n"}],
+ ['bs2', '-a -t4', {IN=>"aa\b c\n"}, {OUT=>"aa\b c\n"}],
+ ['bs3', '-a -t4', {IN=>"aa\b c\n"}, {OUT=>"aa\b\tc\n"}],
+ ['bs4', '-a -t3', {IN=>"aa\b c\n"}, {OUT=>"aa\b\tc\n"}],
+
+ # Undocumented feature:
+ # treat "unexpand -7" as "unexpand --first-only --tabs 7" ,
+ # and "unexpand -90" as "unexpand --first-only --tabs 90",
+ ['u1', '-a -3', {IN=>"a b c"}, {OUT=>"a\tb\tc"}],
+ ['u2', '-a -4,9', {IN=>"a b c"}, {OUT=>"a\tb\tc"}],
+ ['u3', '-a -11', {IN=>"a b"}, {OUT=>"a\tb"}],
+ # Test all digits (for full code coverage)
+ ['u4', '-a -2,6', {IN=>"a b c"}, {OUT=>"a b\tc"}],
+ ['u5', '-a -7', {IN=>"a b"}, {OUT=>"a\tb"}],
+ ['u6', '-a -8', {IN=>"a b"}, {OUT=>"a\tb"}],
+ # This syntax is handled internally as "-3, -9"
+ ['u7', '-a -3,9', {IN=>"a b c"}, {OUT=>"a\tb\tc"}],
+ # Default (without -a) is --first-only:
+ ['u8', '-3', {IN=>" a b"}, {OUT=>"\ta b"}],
+
+ # Arguably this should minimize translation as is done on Solaris.
+ # I.e., not modify the input. But since the result is equivalent,
+ # and to be consistent in output with older versions, we output
+ # a '\t' rather than a space for the second tab position.
+ # For more detailed comparison with other implementations see:
+ # http://lists.gnu.org/archive/html/coreutils/2016-06/msg00015.html
+ # http://lists.gnu.org/archive/html/coreutils/2016-07/msg00011.html
+ ['ts1', '-t8,9', {IN=>"x\t \t y\n"}, {OUT=>"x\t\t\t y\n"}],
+ # There is no ambiguity here. This should always be the output.
+ ['ts2', '-t5,8', {IN=>"x\t \t y\n"}, {OUT=>"x\t\t y\n"}],
);
my $save_temps = $ENV{DEBUG};