1 files changed, 66 insertions, 0 deletions
diff --git a/tests/tilde.tests b/tests/tilde.tests
new file mode 100644
index 0000000..f5f5309
--- /dev/null
+++ b/tests/tilde.tests
@@ -0,0 +1,66 @@
+# this is needed because posix mode restricts tilde expansion to assignment
+# statements preceding a command, instead of the default of expanding all
+# assignment statements on the line (e.g., after `export').  Without this,
+# the next-to-last test fails
+set +o posix
+
+HOME=/usr/xyz
+SHELL=~/bash
+echo ~ch\et
+echo ~/"foo"
+echo "~chet"/"foo"
+echo \~chet/"foo"
+echo \~chet/bar
+echo ~\chet/bar
+echo ~chet""/bar
+echo ":~chet/"
+echo abcd~chet
+echo "SHELL=~/bash"
+echo $SHELL
+echo abcd:~chet
+path=/usr/ucb:/bin:~/bin:~/tmp/bin:/usr/bin
+echo $path
+
+cd /usr
+cd /tmp
+echo ~-
+echo ~+
+
+XPATH=/bin:/usr/bin:.
+
+# yes tilde expansion
+PPATH=$XPATH:~/bin
+echo "$PPATH"
+
+# no tilde expansion
+PPATH="$XPATH:~/bin"
+echo "$PPATH"
+
+# yes tilde expansion
+export PPATH=$XPATH:~/bin
+echo "$PPATH"
+declare -x PPATH=$XPATH:~/bin
+echo "$PPATH"
+
+# no tilde expansion
+export PPATH="$XPATH:~/bin"
+echo "$PPATH"
+declare -x PPATH="$XPATH:~/bin"
+echo "$PPATH"
+
+# more tests of tilde expansion when executing case commands
+case ~ in
+$HOME)	echo ok 1;;
+*) echo bad 1 ;;
+esac
+
+case ~ in
+~)	echo ok 2 ;;
+\~)	echo bad 2a ;;
+*)	echo bad 2b ;;
+esac
+
+case $unset in
+"")	echo ok 3 ;;
+*)	echo bad 3 ;;
+esac