A few minor updates. ;-)
Seriously though, read the Changelog for busybox 0.42,
which this is about to become...
-Erik
diff --git a/tests/cp_tests.mk b/tests/cp_tests.mk
new file mode 100644
index 0000000..e14262a
--- /dev/null
+++ b/tests/cp_tests.mk
@@ -0,0 +1,270 @@
+# This is a -*- makefile -*-
+
+# GNU `cp'
+GCP = /bin/cp
+# BusyBox `cp'
+BCP = $(shell pwd)/cp
+
+.PHONY: cp_clean
+cp_clean:
+ rm -rf cp_tests cp_*.{gnu,bb} cp
+
+.PHONY: cp_tests
+cp_tests: cp_clean cp
+ @echo;
+ @echo "No output from diff means busybox cp is functioning properly.";
+
+ @echo;
+ ${BCP} || true;
+
+ @echo;
+ mkdir cp_tests;
+
+ @echo;
+ cd cp_tests; \
+ echo A file > afile; \
+ ls -l afile > ../cp_afile_afilecopy.gnu; \
+ ${GCP} afile afilecopy; \
+ ls -l afile afilecopy >> ../cp_afile_afilecopy.gnu;
+
+ @echo;
+ rm -f cp_tests/afile*;
+
+ @echo;
+ cd cp_tests; \
+ echo A file > afile; \
+ ls -l afile > ../cp_afile_afilecopy.bb; \
+ ${BCP} afile afilecopy; \
+ ls -l afile afilecopy >> ../cp_afile_afilecopy.bb;
+
+ @echo;
+ diff -u cp_afile_afilecopy.gnu cp_afile_afilecopy.bb;
+
+ @echo;
+ rm -f cp_tests/afile*;
+
+ @echo; echo;
+ cd cp_tests; \
+ mkdir there there1; \
+ cd there; \
+ ln -s ../afile .;
+
+ @echo;
+ cd cp_tests; \
+ echo A file > afile; \
+ ls -l afile > ../cp_symlink.gnu; \
+ ${GCP} there/afile there1/; \
+ ls -l afile there/afile there1/afile >> ../cp_symlink.gnu;
+
+ @echo;
+ rm -f cp_tests/afile cp_tests/there1/afile;
+
+ @echo;
+ cd cp_tests; \
+ echo A file > afile; \
+ ls -l afile > ../cp_symlink.bb; \
+ ${BCP} there/afile there1/; \
+ ls -l afile there/afile there1/afile >> ../cp_symlink.bb;
+
+ @echo;
+ diff -u cp_symlink.gnu cp_symlink.bb;
+
+ @echo;
+ rm -f cp_tests/afile cp_tests/there1/afile;
+
+ @echo; echo;
+ cd cp_tests; \
+ echo A file > afile; \
+ ls -l afile > ../cp_a_symlink.gnu; \
+ ${GCP} -a there/afile there1/; \
+ ls -l afile there/afile there1/afile >> ../cp_a_symlink.gnu;
+
+ @echo;
+ rm -f cp_tests/afile cp_tests/there1/afile;
+
+ @echo;
+ cd cp_tests; \
+ echo A file > afile; \
+ ls -l afile > ../cp_a_symlink.bb; \
+ ${BCP} -a there/afile there1/; \
+ ls -l afile there/afile there1/afile >> ../cp_a_symlink.bb;
+
+ @echo;
+ diff -u cp_a_symlink.gnu cp_a_symlink.bb;
+
+ @echo;
+ rm -f cp_tests/afile
+ rm -rf cp_tests/there{,1};
+
+ @echo; echo;
+ cd cp_tests; \
+ echo A file > there/afile; \
+ mkdir there/adir; \
+ touch there/adir/afileinadir; \
+ ln -s $(shell pwd) there/alink;
+
+ @echo;
+ cd cp_tests; \
+ ${GCP} -a there/ there1/; \
+ ls -lR there/ there1/ > ../cp_a_dir_dir.gnu;
+
+ @echo;
+ rm -rf cp_tests/there1;
+
+ @echo;
+ cd cp_tests; \
+ ${BCP} -a there/ there1/; \
+ ls -lR there/ there1/ > ../cp_a_dir_dir.bb;
+
+ @echo;
+ diff -u cp_a_dir_dir.gnu cp_a_dir_dir.bb;
+
+ @echo;
+ rm -rf cp_tests/there1/;
+
+ @echo; echo;
+ cd cp_tests; \
+ echo A file number one > afile1; \
+ echo A file number two, blah. > afile2; \
+ ln -s afile1 symlink1; \
+ mkdir there1; \
+ ${GCP} afile1 afile2 symlink1 there1/; \
+ ls -lR > ../cp_files_dir.gnu;
+
+ @echo;
+ rm -rf cp_tests/{afile{1,2},symlink1,there1};
+
+ @echo;
+ cd cp_tests; \
+ echo A file number one > afile1; \
+ echo A file number two, blah. > afile2; \
+ ln -s afile1 symlink1; \
+ mkdir there1; \
+ ${BCP} afile1 afile2 symlink1 there1/; \
+ ls -lR > ../cp_files_dir.bb;
+
+ @echo;
+ diff -u cp_files_dir.gnu cp_files_dir.bb;
+
+ @echo;
+ rm -rf cp_tests/{afile{1,2},symlink1,there1};
+
+ @echo; echo;
+ cd cp_tests; \
+ echo A file number one > afile1; \
+ echo A file number two, blah. > afile2; \
+ ln -s afile1 symlink1; \
+ mkdir there1; \
+ ${GCP} -d afile1 afile2 symlink1 there1/; \
+ ls -lR > ../cp_d_files_dir.gnu;
+
+ @echo;
+ rm -rf cp_tests/{afile{1,2},symlink1,there1};
+
+ @echo;
+ cd cp_tests; \
+ echo A file number one > afile1; \
+ echo A file number two, blah. > afile2; \
+ ln -s afile1 symlink1; \
+ mkdir there1; \
+ ${BCP} -d afile1 afile2 symlink1 there1/; \
+ ls -lR > ../cp_d_files_dir.bb;
+
+ @echo;
+ diff -u cp_d_files_dir.gnu cp_d_files_dir.bb;
+
+ @echo;
+ rm -rf cp_tests/{afile{1,2},symlink1,there1};
+
+ @echo; echo;
+ cd cp_tests; \
+ echo A file number one > afile1; \
+ echo A file number two, blah. > afile2; \
+ touch --date='Sat Jan 29 21:24:08 PST 2000' afile1; \
+ ln -s afile1 symlink1; \
+ mkdir there1; \
+ ${GCP} -p afile1 afile2 symlink1 there1/; \
+ ls -lR > ../cp_p_files_dir.gnu;
+
+ @echo;
+ rm -rf cp_tests/{afile{1,2},symlink1,there1};
+
+ @echo;
+ cd cp_tests; \
+ echo A file number one > afile1; \
+ echo A file number two, blah. > afile2; \
+ touch --date='Sat Jan 29 21:24:08 PST 2000' afile1; \
+ ln -s afile1 symlink1; \
+ mkdir there1; \
+ ${BCP} -p afile1 afile2 symlink1 there1/; \
+ ls -lR > ../cp_p_files_dir.bb;
+
+ @echo;
+ diff -u cp_p_files_dir.gnu cp_p_files_dir.bb;
+
+ @echo;
+ rm -rf cp_tests/{afile{1,2},symlink1,there1};
+
+ @echo; echo;
+ cd cp_tests; \
+ echo A file number one > afile1; \
+ echo A file number two, blah. > afile2; \
+ touch --date='Sat Jan 29 21:24:08 PST 2000' afile1; \
+ ln -s afile1 symlink1; \
+ mkdir there1; \
+ ${GCP} -p -d afile1 afile2 symlink1 there1/; \
+ ls -lR > ../cp_pd_files_dir.gnu;
+
+ @echo;
+ rm -rf cp_tests/{afile{1,2},symlink1,there1};
+
+ @echo;
+ cd cp_tests; \
+ echo A file number one > afile1; \
+ echo A file number two, blah. > afile2; \
+ touch --date='Sat Jan 29 21:24:08 PST 2000' afile1; \
+ ln -s afile1 symlink1; \
+ mkdir there1; \
+ ${BCP} -p -d afile1 afile2 symlink1 there1/; \
+ ls -lR > ../cp_pd_files_dir.bb;
+
+ @echo;
+ diff -u cp_pd_files_dir.gnu cp_pd_files_dir.bb;
+
+ @echo;
+ rm -rf cp_tests/{afile{1,2},symlink1,there1};
+
+ @echo; echo;
+ cd cp_tests; \
+ mkdir dir{a,b}; \
+ echo A file > dira/afile; \
+ echo A file in dirb > dirb/afileindirb; \
+ ln -s dira/afile dira/alinktoafile; \
+ mkdir dira/subdir1; \
+ echo Another file > dira/subdir1/anotherfile; \
+ ls -lR . > ../cp_a_dira_dirb.gnu; \
+ ${GCP} -a dira dirb; \
+ ls -lR . >> ../cp_a_dira_dirb.gnu;
+
+ # false;
+ @echo;
+ rm -rf cp_tests/dir{a,b};
+
+ @echo;
+ cd cp_tests; \
+ mkdir dir{a,b}; \
+ echo A file > dira/afile; \
+ echo A file in dirb > dirb/afileindirb; \
+ ln -s dira/afile dira/alinktoafile; \
+ mkdir dira/subdir1; \
+ echo Another file > dira/subdir1/anotherfile; \
+ ls -lR . > ../cp_a_dira_dirb.bb; \
+ ${BCP} -a dira dirb; \
+ ls -lR . >> ../cp_a_dira_dirb.bb;
+
+ @echo;
+ diff -u cp_a_dira_dirb.gnu cp_a_dira_dirb.bb;
+
+ # false;
+ @echo;
+ rm -rf cp_tests/dir{a,b};