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authorDenys Vlasenko2017-08-11 01:32:46 +0200
committerDenys Vlasenko2017-08-11 01:32:46 +0200
commit74d40589288890fffea437ed2f38ad1f2dc740e5 (patch)
treefafc1724b3b2c11280c067eaa4eaabb57e5f34cd /shell/hush_test/hush-getopts
parent4628945cd8d4679912f126d5f18f954210abb7d0 (diff)
downloadbusybox-74d40589288890fffea437ed2f38ad1f2dc740e5.zip
busybox-74d40589288890fffea437ed2f38ad1f2dc740e5.tar.gz
hush: getopts builtin
function old new delta builtin_getopts - 271 +271 bltins1 372 384 +12 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 1/0 up/down: 283/0) Total: 283 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'shell/hush_test/hush-getopts')
-rw-r--r--shell/hush_test/hush-getopts/getopt_positional.right6
-rwxr-xr-xshell/hush_test/hush-getopts/getopt_positional.tests8
-rw-r--r--shell/hush_test/hush-getopts/getopt_simple.right34
-rwxr-xr-xshell/hush_test/hush-getopts/getopt_simple.tests75
4 files changed, 123 insertions, 0 deletions
diff --git a/shell/hush_test/hush-getopts/getopt_positional.right b/shell/hush_test/hush-getopts/getopt_positional.right
new file mode 100644
index 0000000..f1c9424
--- /dev/null
+++ b/shell/hush_test/hush-getopts/getopt_positional.right
@@ -0,0 +1,6 @@
+*** no OPTIND, optstring:'we' args:-q -w -e r -t -y
+./getopt_positional.tests: invalid option -- q
+var:'?' OPTIND:2
+var:'w' OPTIND:3
+var:'e' OPTIND:4
+exited: var:'?' OPTIND:4
diff --git a/shell/hush_test/hush-getopts/getopt_positional.tests b/shell/hush_test/hush-getopts/getopt_positional.tests
new file mode 100755
index 0000000..a5404a2
--- /dev/null
+++ b/shell/hush_test/hush-getopts/getopt_positional.tests
@@ -0,0 +1,8 @@
+set -- -q -w -e r -t -y
+echo "*** no OPTIND, optstring:'we' args:$*"
+var=QWERTY
+while getopts "we" var; do
+ echo "var:'$var' OPTIND:$OPTIND"
+done
+# unfortunately, "rc:0" is shown since while's overall exitcode is "success"
+echo "exited: var:'$var' OPTIND:$OPTIND"
diff --git a/shell/hush_test/hush-getopts/getopt_simple.right b/shell/hush_test/hush-getopts/getopt_simple.right
new file mode 100644
index 0000000..b4855fa
--- /dev/null
+++ b/shell/hush_test/hush-getopts/getopt_simple.right
@@ -0,0 +1,34 @@
+*** no OPTIND, optstring:'ab' args:-a -b c
+var:'a' OPTIND:2
+var:'b' OPTIND:3
+exited: rc:0 var:'?' OPTIND:3
+*** OPTIND=1, optstring:'ab' args:-a -b c
+var:'a' OPTIND:2
+var:'b' OPTIND:3
+exited: rc:0 var:'?' OPTIND:3
+*** OPTIND=0, optstring:'ab' args:-a -b c
+var:'a' OPTIND:2
+var:'b' OPTIND:3
+exited: rc:0 var:'?' OPTIND:3
+*** unset OPTIND, optstring:'ab' args:-a -b c
+var:'a' OPTIND:2
+var:'b' OPTIND:3
+exited: rc:0 var:'?' OPTIND:3
+*** optstring:'ab' args:-a -b c
+1 rc:0 var:'a' OPTIND:2
+2 rc:0 var:'b' OPTIND:3
+3 rc:1 var:'?' OPTIND:3
+*** unset OPTIND, optstring:'ab' args:-a c -c -b d
+var:'a' OPTIND:2
+exited: rc:0 var:'?' OPTIND:2
+*** unset OPTIND, optstring:'ab' args:-a -c -b d
+var:'a' OPTIND:2
+./getopt_simple.tests: invalid option -- c
+var:'?' OPTIND:3
+var:'b' OPTIND:4
+exited: rc:0 var:'?' OPTIND:4
+*** unset OPTIND, OPTERR=0, optstring:'ab' args:-a -c -b d
+var:'a' OPTIND:2
+var:'?' OPTIND:3
+var:'b' OPTIND:4
+exited: rc:0 var:'?' OPTIND:4
diff --git a/shell/hush_test/hush-getopts/getopt_simple.tests b/shell/hush_test/hush-getopts/getopt_simple.tests
new file mode 100755
index 0000000..8615ae3
--- /dev/null
+++ b/shell/hush_test/hush-getopts/getopt_simple.tests
@@ -0,0 +1,75 @@
+# Simple usage cases for getopts.
+#
+# OPTIND is either not touched at all (first loop with getopts,
+# relying on shell startup init), or getopts state is reset
+# before new loop with "unset OPTIND", "OPTIND=1" or "OPTIND=0".
+#
+# Each option is a separate argument (no "-abc"). This conceptually
+# needs only $OPTIND to hold getopts state.
+#
+# We check that loop does not stop on unknown option (sets "?"),
+# stops on _first_ non-option argument.
+
+echo "*** no OPTIND, optstring:'ab' args:-a -b c"
+var=QWERTY
+while getopts "ab" var -a -b c; do
+ echo "var:'$var' OPTIND:$OPTIND"
+done
+# unfortunately, "rc:0" is shown since while's overall exitcode is "success"
+echo "exited: rc:$? var:'$var' OPTIND:$OPTIND"
+
+# Resetting behavior =1
+echo "*** OPTIND=1, optstring:'ab' args:-a -b c"
+OPTIND=1
+while getopts "ab" var -a -b c; do
+ echo "var:'$var' OPTIND:$OPTIND"
+done
+echo "exited: rc:$? var:'$var' OPTIND:$OPTIND"
+
+# Resetting behavior =0
+echo "*** OPTIND=0, optstring:'ab' args:-a -b c"
+OPTIND=0
+while getopts "ab" var -a -b c; do
+ echo "var:'$var' OPTIND:$OPTIND"
+done
+echo "exited: rc:$? var:'$var' OPTIND:$OPTIND"
+
+# Resetting behavior "unset"
+echo "*** unset OPTIND, optstring:'ab' args:-a -b c"
+unset OPTIND
+while getopts "ab" var -a -b c; do
+ echo "var:'$var' OPTIND:$OPTIND"
+done
+echo "exited: rc:$? var:'$var' OPTIND:$OPTIND"
+
+# What is the final exitcode?
+echo "*** optstring:'ab' args:-a -b c"
+unset OPTIND
+getopts "ab" var -a -b c; echo "1 rc:$? var:'$var' OPTIND:$OPTIND"
+getopts "ab" var -a -b c; echo "2 rc:$? var:'$var' OPTIND:$OPTIND"
+getopts "ab" var -a -b c; echo "3 rc:$? var:'$var' OPTIND:$OPTIND"
+
+# Where would it stop? c or -c?
+echo "*** unset OPTIND, optstring:'ab' args:-a c -c -b d"
+unset OPTIND
+while getopts "ab" var -a c -c -b d; do
+ echo "var:'$var' OPTIND:$OPTIND"
+done
+echo "exited: rc:$? var:'$var' OPTIND:$OPTIND"
+
+# What happens on unknown option?
+echo "*** unset OPTIND, optstring:'ab' args:-a -c -b d"
+unset OPTIND
+while getopts "ab" var -a -c -b d; do
+ echo "var:'$var' OPTIND:$OPTIND"
+done
+echo "exited: rc:$? var:'$var' OPTIND:$OPTIND"
+
+# ORTERR=0 suppresses error message?
+echo "*** unset OPTIND, OPTERR=0, optstring:'ab' args:-a -c -b d"
+unset OPTIND
+OPTERR=0
+while getopts "ab" var -a -c -b d; do
+ echo "var:'$var' OPTIND:$OPTIND"
+done
+echo "exited: rc:$? var:'$var' OPTIND:$OPTIND"