From 13468ca834b3ae6203541b44e1e2b2d7d86bb153 Mon Sep 17 00:00:00 2001
From: Rob Landley <rob@landley.net>
Date: Tue, 5 Nov 2019 19:09:15 -0600
Subject: Switch -w tests to check boundary conditions, fix code to pass tests,
 variable declarations go at the start of blocks, and remove specific people's
 names from todo items (anybody can do any todo).

---
 tests/ls.test   | 15 ++++++++++++---
 toys/posix/ls.c |  9 +++------
 2 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/tests/ls.test b/tests/ls.test
index 33877aa2..c207c3f6 100755
--- a/tests/ls.test
+++ b/tests/ls.test
@@ -33,9 +33,6 @@ testing "with -k" "$IN && ls -k; $OUT" "dir1\ndir2\nfile1.txt\nfile2.txt\n" "" "
 testing "with -m" "$IN && ls -m; $OUT" "dir1, dir2, file1.txt, file2.txt\n" "" ""
 testing "with -F" "$IN && ls -F; $OUT" "dir1/\ndir2/\nfile1.txt\nfile2.txt\n" "" ""
 testing "with -dk *" "$IN && ls -dk *; $OUT" "dir1\ndir2\nfile1.txt\nfile2.txt\n" "" ""
-# TODO(ilijic) Remove `sed` commands in `-w` tests after trailing space patch is applied
-testing "with -w - one column" "$IN && ls -xw 5 | sed 's/^[ \t]*//;s/[ \t]*$//' && $OUT" "dir1\ndir2\nfile1.txt\nfile2.txt\n" "" ""
-testing "with -w - two columns" "$IN && ls -Cw 32 | sed 's/^[ \t]*//;s/[ \t]*$//' && $OUT" "dir1  file1.txt\ndir2  file2.txt\n" "" ""
 testing "with -Z" "$IN && ls -Z file1.txt | egrep -q '^[^ ]+ file1.txt' || echo fail; $OUT" "" "" ""
 testing "with -lZ" "$IN && ls --full-time -lZ file1.txt | egrep -q '^-[rwx-]+ +[0-9]+ +[^ ]+ +[^ ]+ +[^ ]+ +[0-9]+ [0-9][0-9][0-9][0-9]-[0-9][0-9]-.* file1.txt' || echo fail; $OUT" "" "" ""
 
@@ -60,5 +57,17 @@ unset INODE
 testing "missing" "$IN && ls does-not-exist 2>err ; grep -q 'ls:.*missing.*: No
 such file' err || echo missing error; $OUT" "" "" ""
 
+rm -f lstest/{file1.txt,err}
+touch lstest/{one,two,three,four,five,six,seven,eight,nine,ten}
+testing "-w test 1" "$IN && ls -Cw 20; $OUT" \
+  "eight  one    three\nfive   seven  two\nfour   six\nnine   ten\n" "" ""
+testing "-w test 2" "$IN && ls -Cw 19; $OUT" \
+  "eight  seven\nfive   six\nfour   ten\nnine   three\none    two\n" "" ""
+
+rm -rf lstest/*
+touch lstest/{a,b,c,d,e,f}
+testing "-w test 3" "$IN && ls -Cw 3; $OUT" "a\nb\nc\nd\ne\nf\n" "" ""
+testing "-w test 4" "$IN && ls -Cw 4; $OUT" "a  d\nb  e\nc  f\n" "" ""
+
 # Removing test dir for cleanup purpose
 rm -rf lstest
diff --git a/toys/posix/ls.c b/toys/posix/ls.c
index c7b09bf2..548a31a7 100644
--- a/toys/posix/ls.c
+++ b/toys/posix/ls.c
@@ -403,10 +403,9 @@ static void listfiles(int dirfd, struct dirtree *indir)
 
   // Loop through again to produce output.
   width = 0;
-  unsigned curcol = 0;
   for (ul = 0; ul<dtlen; ul++) {
     int ii, zap;
-    unsigned lastlen = *len, lastcol = curcol, color = 0;
+    unsigned curcol, lastlen = *len, lastcol = ul ? curcol : 0, color = 0;
     unsigned long next = next_column(ul, dtlen, columns, &curcol);
     struct stat *st = &(sort[next]->st);
     mode_t mode = st->st_mode;
@@ -565,10 +564,8 @@ void ls_main(void)
   }
 
   TT.screen_width = 80;
-  if (FLAG(w)) {
-    // TODO (ilijic): Add test for setting w flag
-    TT.screen_width = TT.w;
-  } else { terminal_size(&TT.screen_width, NULL); }
+  if (FLAG(w)) TT.screen_width = TT.w+4;
+  else terminal_size(&TT.screen_width, NULL);
   if (TT.screen_width<2) TT.screen_width = 2;
   if (FLAG(b)) TT.escmore = " \\";
 
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