summaryrefslogtreecommitdiffstats
path: root/t/t0040-parse-options.sh
diff options
context:
space:
mode:
Diffstat (limited to 't/t0040-parse-options.sh')
-rwxr-xr-xt/t0040-parse-options.sh754
1 files changed, 754 insertions, 0 deletions
diff --git a/t/t0040-parse-options.sh b/t/t0040-parse-options.sh
new file mode 100755
index 0000000..8fdef88
--- /dev/null
+++ b/t/t0040-parse-options.sh
@@ -0,0 +1,754 @@
+#!/bin/sh
+#
+# Copyright (c) 2007 Johannes Schindelin
+#
+
+test_description='our own option parser'
+
+TEST_PASSES_SANITIZE_LEAK=true
+. ./test-lib.sh
+
+cat >expect <<\EOF
+usage: test-tool parse-options <options>
+
+ A helper function for the parse-options API.
+
+ --[no-]yes get a boolean
+ -D, --no-doubt begins with 'no-'
+ --doubt opposite of --no-doubt
+ -B, --no-fear be brave
+ -b, --[no-]boolean increment by one
+ -4, --[no-]or4 bitwise-or boolean with ...0100
+ --[no-]neg-or4 same as --no-or4
+
+ -i, --[no-]integer <n>
+ get a integer
+ -j <n> get a integer, too
+ -m, --magnitude <n> get a magnitude
+ --[no-]set23 set integer to 23
+ --mode1 set integer to 1 (cmdmode option)
+ --mode2 set integer to 2 (cmdmode option)
+ --[no-]mode34 (3|4) set integer to 3 or 4 (cmdmode option)
+ -L, --[no-]length <str>
+ get length of <str>
+ -F, --[no-]file <file>
+ set file to <file>
+
+String options
+ -s, --[no-]string <string>
+ get a string
+ --[no-]string2 <str> get another string
+ --[no-]st <st> get another string (pervert ordering)
+ -o <str> get another string
+ --longhelp help text of this entry
+ spans multiple lines
+ --[no-]list <str> add str to list
+
+Magic arguments
+ -NUM set integer to NUM
+ + same as -b
+ --ambiguous positive ambiguity
+ --no-ambiguous negative ambiguity
+
+Standard options
+ --[no-]abbrev[=<n>] use <n> digits to display object names
+ -v, --[no-]verbose be verbose
+ -n, --[no-]dry-run dry run
+ -q, --[no-]quiet be quiet
+ --[no-]expect <string>
+ expected output in the variable dump
+
+Alias
+ -A, --[no-]alias-source <string>
+ get a string
+ -Z, --[no-]alias-target <string>
+ alias of --alias-source
+
+EOF
+
+test_expect_success 'test help' '
+ test_must_fail test-tool parse-options -h >output 2>output.err &&
+ test_must_be_empty output.err &&
+ test_cmp expect output
+'
+
+mv expect expect.err
+
+check () {
+ what="$1" &&
+ shift &&
+ expect="$1" &&
+ shift &&
+ test-tool parse-options --expect="$what $expect" "$@"
+}
+
+check_unknown_i18n() {
+ case "$1" in
+ --*)
+ echo error: unknown option \`${1#--}\' >expect ;;
+ -*)
+ echo error: unknown switch \`${1#-}\' >expect ;;
+ esac &&
+ cat expect.err >>expect &&
+ test_must_fail test-tool parse-options $* >output 2>output.err &&
+ test_must_be_empty output &&
+ test_cmp expect output.err
+}
+
+test_expect_success 'OPT_BOOL() #1' 'check boolean: 1 --yes'
+test_expect_success 'OPT_BOOL() #2' 'check boolean: 1 --no-doubt'
+test_expect_success 'OPT_BOOL() #3' 'check boolean: 1 -D'
+test_expect_success 'OPT_BOOL() #4' 'check boolean: 1 --no-fear'
+test_expect_success 'OPT_BOOL() #5' 'check boolean: 1 -B'
+
+test_expect_success 'OPT_BOOL() is idempotent #1' 'check boolean: 1 --yes --yes'
+test_expect_success 'OPT_BOOL() is idempotent #2' 'check boolean: 1 -DB'
+
+test_expect_success 'OPT_BOOL() negation #1' 'check boolean: 0 -D --no-yes'
+test_expect_success 'OPT_BOOL() negation #2' 'check boolean: 0 -D --no-no-doubt'
+
+test_expect_success 'OPT_BOOL() no negation #1' 'check_unknown_i18n --fear'
+test_expect_success 'OPT_BOOL() no negation #2' 'check_unknown_i18n --no-no-fear'
+
+test_expect_success 'OPT_BOOL() positivation' 'check boolean: 0 -D --doubt'
+
+test_expect_success 'OPT_INT() negative' 'check integer: -2345 -i -2345'
+
+test_expect_success 'OPT_MAGNITUDE() simple' '
+ check magnitude: 2345678 -m 2345678
+'
+
+test_expect_success 'OPT_MAGNITUDE() kilo' '
+ check magnitude: 239616 -m 234k
+'
+
+test_expect_success 'OPT_MAGNITUDE() mega' '
+ check magnitude: 104857600 -m 100m
+'
+
+test_expect_success 'OPT_MAGNITUDE() giga' '
+ check magnitude: 1073741824 -m 1g
+'
+
+test_expect_success 'OPT_MAGNITUDE() 3giga' '
+ check magnitude: 3221225472 -m 3g
+'
+
+cat >expect <<\EOF
+boolean: 2
+integer: 1729
+magnitude: 16384
+timestamp: 0
+string: 123
+abbrev: 7
+verbose: 2
+quiet: 0
+dry run: yes
+file: prefix/my.file
+EOF
+
+test_expect_success 'short options' '
+ test-tool parse-options -s123 -b -i 1729 -m 16k -b -vv -n -F my.file \
+ >output 2>output.err &&
+ test_cmp expect output &&
+ test_must_be_empty output.err
+'
+
+cat >expect <<\EOF
+boolean: 2
+integer: 1729
+magnitude: 16384
+timestamp: 0
+string: 321
+abbrev: 10
+verbose: 2
+quiet: 0
+dry run: no
+file: prefix/fi.le
+EOF
+
+test_expect_success 'long options' '
+ test-tool parse-options --boolean --integer 1729 --magnitude 16k \
+ --boolean --string2=321 --verbose --verbose --no-dry-run \
+ --abbrev=10 --file fi.le --obsolete \
+ >output 2>output.err &&
+ test_must_be_empty output.err &&
+ test_cmp expect output
+'
+
+test_expect_success 'missing required value' '
+ cat >expect <<-\EOF &&
+ error: switch `s'\'' requires a value
+ EOF
+ test_expect_code 129 test-tool parse-options -s 2>actual &&
+ test_cmp expect actual &&
+
+ cat >expect <<-\EOF &&
+ error: option `string'\'' requires a value
+ EOF
+ test_expect_code 129 test-tool parse-options --string 2>actual &&
+ test_cmp expect actual &&
+
+ cat >expect <<-\EOF &&
+ error: option `file'\'' requires a value
+ EOF
+ test_expect_code 129 test-tool parse-options --file 2>actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'superfluous value provided: boolean' '
+ cat >expect <<-\EOF &&
+ error: option `yes'\'' takes no value
+ EOF
+ test_expect_code 129 test-tool parse-options --yes=hi 2>actual &&
+ test_cmp expect actual &&
+
+ cat >expect <<-\EOF &&
+ error: option `no-yes'\'' takes no value
+ EOF
+ test_expect_code 129 test-tool parse-options --no-yes=hi 2>actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'superfluous value provided: cmdmode' '
+ cat >expect <<-\EOF &&
+ error: option `mode1'\'' takes no value
+ EOF
+ test_expect_code 129 test-tool parse-options --mode1=hi 2>actual &&
+ test_cmp expect actual
+'
+
+cat >expect <<\EOF
+boolean: 1
+integer: 13
+magnitude: 0
+timestamp: 0
+string: 123
+abbrev: 7
+verbose: -1
+quiet: 0
+dry run: no
+file: (not set)
+arg 00: a1
+arg 01: b1
+arg 02: --boolean
+EOF
+
+test_expect_success 'intermingled arguments' '
+ test-tool parse-options a1 --string 123 b1 --boolean -j 13 -- --boolean \
+ >output 2>output.err &&
+ test_must_be_empty output.err &&
+ test_cmp expect output
+'
+
+cat >expect <<\EOF
+boolean: 0
+integer: 2
+magnitude: 0
+timestamp: 0
+string: (not set)
+abbrev: 7
+verbose: -1
+quiet: 0
+dry run: no
+file: (not set)
+EOF
+
+test_expect_success 'unambiguously abbreviated option' '
+ GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS=false \
+ test-tool parse-options --int 2 --boolean --no-bo >output 2>output.err &&
+ test_must_be_empty output.err &&
+ test_cmp expect output
+'
+
+test_expect_success 'unambiguously abbreviated option with "="' '
+ GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS=false \
+ test-tool parse-options --expect="integer: 2" --int=2
+'
+
+test_expect_success 'ambiguously abbreviated option' '
+ test_expect_code 129 env GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS=false \
+ test-tool parse-options --strin 123
+'
+
+test_expect_success 'non ambiguous option (after two options it abbreviates)' '
+ GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS=false \
+ test-tool parse-options --expect="string: 123" --st 123
+'
+
+test_expect_success 'Alias options do not contribute to abbreviation' '
+ test-tool parse-options --alias-source 123 >output &&
+ grep "^string: 123" output &&
+ test-tool parse-options --alias-target 123 >output &&
+ grep "^string: 123" output &&
+ test_must_fail test-tool parse-options --alias &&
+ GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS=false \
+ test-tool parse-options --alias 123 >output &&
+ grep "^string: 123" output
+'
+
+cat >typo.err <<\EOF
+error: did you mean `--boolean` (with two dashes)?
+EOF
+
+test_expect_success 'detect possible typos' '
+ test_must_fail test-tool parse-options -boolean >output 2>output.err &&
+ test_must_be_empty output &&
+ test_cmp typo.err output.err
+'
+
+cat >typo.err <<\EOF
+error: did you mean `--ambiguous` (with two dashes)?
+EOF
+
+test_expect_success 'detect possible typos' '
+ test_must_fail test-tool parse-options -ambiguous >output 2>output.err &&
+ test_must_be_empty output &&
+ test_cmp typo.err output.err
+'
+
+cat >expect <<\EOF
+Callback: "four", 0
+boolean: 5
+integer: 4
+magnitude: 0
+timestamp: 0
+string: (not set)
+abbrev: 7
+verbose: -1
+quiet: 0
+dry run: no
+file: (not set)
+EOF
+
+test_expect_success 'OPT_CALLBACK() and OPT_BIT() work' '
+ test-tool parse-options --length=four -b -4 >output 2>output.err &&
+ test_must_be_empty output.err &&
+ test_cmp expect output
+'
+
+test_expect_success 'OPT_CALLBACK() and callback errors work' '
+ test_must_fail test-tool parse-options --no-length >output 2>output.err &&
+ test_must_be_empty output &&
+ test_must_be_empty output.err
+'
+
+cat >expect <<\EOF
+boolean: 1
+integer: 23
+magnitude: 0
+timestamp: 0
+string: (not set)
+abbrev: 7
+verbose: -1
+quiet: 0
+dry run: no
+file: (not set)
+EOF
+
+test_expect_success 'OPT_BIT() and OPT_SET_INT() work' '
+ test-tool parse-options --set23 -bbbbb --no-or4 >output 2>output.err &&
+ test_must_be_empty output.err &&
+ test_cmp expect output
+'
+
+test_expect_success 'OPT_NEGBIT() and OPT_SET_INT() work' '
+ test-tool parse-options --set23 -bbbbb --neg-or4 >output 2>output.err &&
+ test_must_be_empty output.err &&
+ test_cmp expect output
+'
+
+test_expect_success 'OPT_BIT() works' '
+ test-tool parse-options --expect="boolean: 6" -bb --or4
+'
+
+test_expect_success 'OPT_NEGBIT() works' '
+ test-tool parse-options --expect="boolean: 6" -bb --no-neg-or4
+'
+
+test_expect_success 'OPT_CMDMODE() works' '
+ test-tool parse-options --expect="integer: 1" --mode1 &&
+ test-tool parse-options --expect="integer: 3" --mode34=3
+'
+
+test_expect_success 'OPT_CMDMODE() detects incompatibility (1)' '
+ test_must_fail test-tool parse-options --mode1 --mode2 >output 2>output.err &&
+ test_must_be_empty output &&
+ test_grep "mode1" output.err &&
+ test_grep "mode2" output.err &&
+ test_grep "is incompatible with" output.err
+'
+
+test_expect_success 'OPT_CMDMODE() detects incompatibility (2)' '
+ test_must_fail test-tool parse-options --set23 --mode2 >output 2>output.err &&
+ test_must_be_empty output &&
+ test_grep "mode2" output.err &&
+ test_grep "set23" output.err &&
+ test_grep "is incompatible with" output.err
+'
+
+test_expect_success 'OPT_CMDMODE() detects incompatibility (3)' '
+ test_must_fail test-tool parse-options --mode2 --set23 >output 2>output.err &&
+ test_must_be_empty output &&
+ test_grep "mode2" output.err &&
+ test_grep "set23" output.err &&
+ test_grep "is incompatible with" output.err
+'
+
+test_expect_success 'OPT_CMDMODE() detects incompatibility (4)' '
+ test_must_fail test-tool parse-options --mode2 --mode34=3 \
+ >output 2>output.err &&
+ test_must_be_empty output &&
+ test_grep "mode2" output.err &&
+ test_grep "mode34.3" output.err &&
+ test_grep "is incompatible with" output.err
+'
+
+test_expect_success 'OPT_COUNTUP() with PARSE_OPT_NODASH works' '
+ test-tool parse-options --expect="boolean: 6" + + + + + +
+'
+
+test_expect_success 'OPT_NUMBER_CALLBACK() works' '
+ test-tool parse-options --expect="integer: 12345" -12345
+'
+
+cat >expect <<\EOF
+boolean: 0
+integer: 0
+magnitude: 0
+timestamp: 0
+string: (not set)
+abbrev: 7
+verbose: -1
+quiet: 0
+dry run: no
+file: (not set)
+EOF
+
+test_expect_success 'negation of OPT_NONEG flags is not ambiguous' '
+ GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS=false \
+ test-tool parse-options --no-ambig >output 2>output.err &&
+ test_must_be_empty output.err &&
+ test_cmp expect output
+'
+
+cat >>expect <<\EOF
+list: foo
+list: bar
+list: baz
+EOF
+test_expect_success '--list keeps list of strings' '
+ test-tool parse-options --list foo --list=bar --list=baz >output &&
+ test_cmp expect output
+'
+
+test_expect_success '--no-list resets list' '
+ test-tool parse-options --list=other --list=irrelevant --list=options \
+ --no-list --list=foo --list=bar --list=baz >output &&
+ test_cmp expect output
+'
+
+test_expect_success 'multiple quiet levels' '
+ test-tool parse-options --expect="quiet: 3" -q -q -q
+'
+
+test_expect_success 'multiple verbose levels' '
+ test-tool parse-options --expect="verbose: 3" -v -v -v
+'
+
+test_expect_success '--no-quiet sets --quiet to 0' '
+ test-tool parse-options --expect="quiet: 0" --no-quiet
+'
+
+test_expect_success '--no-quiet resets multiple -q to 0' '
+ test-tool parse-options --expect="quiet: 0" -q -q -q --no-quiet
+'
+
+test_expect_success '--no-verbose sets verbose to 0' '
+ test-tool parse-options --expect="verbose: 0" --no-verbose
+'
+
+test_expect_success '--no-verbose resets multiple verbose to 0' '
+ test-tool parse-options --expect="verbose: 0" -v -v -v --no-verbose
+'
+
+test_expect_success 'GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS works' '
+ GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS=false \
+ test-tool parse-options --ye &&
+ test_must_fail env GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS=true \
+ test-tool parse-options --ye
+'
+
+test_expect_success '--end-of-options treats remainder as args' '
+ test-tool parse-options \
+ --expect="verbose: -1" \
+ --expect="arg 00: --verbose" \
+ --end-of-options --verbose
+'
+
+test_expect_success 'KEEP_DASHDASH works' '
+ test-tool parse-options-flags --keep-dashdash cmd --opt=1 -- --opt=2 --unknown >actual &&
+ cat >expect <<-\EOF &&
+ opt: 1
+ arg 00: --
+ arg 01: --opt=2
+ arg 02: --unknown
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'KEEP_ARGV0 works' '
+ test-tool parse-options-flags --keep-argv0 cmd arg0 --opt=3 >actual &&
+ cat >expect <<-\EOF &&
+ opt: 3
+ arg 00: cmd
+ arg 01: arg0
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'STOP_AT_NON_OPTION works' '
+ test-tool parse-options-flags --stop-at-non-option cmd --opt=4 arg0 --opt=5 --unknown >actual &&
+ cat >expect <<-\EOF &&
+ opt: 4
+ arg 00: arg0
+ arg 01: --opt=5
+ arg 02: --unknown
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'KEEP_UNKNOWN_OPT works' '
+ test-tool parse-options-flags --keep-unknown-opt cmd --unknown=1 --opt=6 -u2 >actual &&
+ cat >expect <<-\EOF &&
+ opt: 6
+ arg 00: --unknown=1
+ arg 01: -u2
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'NO_INTERNAL_HELP works for -h' '
+ test_expect_code 129 test-tool parse-options-flags --no-internal-help cmd -h 2>err &&
+ grep "^error: unknown switch \`h$SQ" err &&
+ grep "^usage: " err
+'
+
+for help_opt in help help-all
+do
+ test_expect_success "NO_INTERNAL_HELP works for --$help_opt" "
+ test_expect_code 129 test-tool parse-options-flags --no-internal-help cmd --$help_opt 2>err &&
+ grep '^error: unknown option \`'$help_opt\' err &&
+ grep '^usage: ' err
+ "
+done
+
+test_expect_success 'KEEP_UNKNOWN_OPT | NO_INTERNAL_HELP works' '
+ test-tool parse-options-flags --keep-unknown-opt --no-internal-help cmd -h --help --help-all >actual &&
+ cat >expect <<-\EOF &&
+ opt: 0
+ arg 00: -h
+ arg 01: --help
+ arg 02: --help-all
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'subcommand - no subcommand shows error and usage' '
+ test_expect_code 129 test-tool parse-subcommand cmd 2>err &&
+ grep "^error: need a subcommand" err &&
+ grep ^usage: err
+'
+
+test_expect_success 'subcommand - subcommand after -- shows error and usage' '
+ test_expect_code 129 test-tool parse-subcommand cmd -- subcmd-one 2>err &&
+ grep "^error: need a subcommand" err &&
+ grep ^usage: err
+'
+
+test_expect_success 'subcommand - subcommand after --end-of-options shows error and usage' '
+ test_expect_code 129 test-tool parse-subcommand cmd --end-of-options subcmd-one 2>err &&
+ grep "^error: need a subcommand" err &&
+ grep ^usage: err
+'
+
+test_expect_success 'subcommand - unknown subcommand shows error and usage' '
+ test_expect_code 129 test-tool parse-subcommand cmd nope 2>err &&
+ grep "^error: unknown subcommand: \`nope$SQ" err &&
+ grep ^usage: err
+'
+
+test_expect_success 'subcommand - subcommands cannot be abbreviated' '
+ test_expect_code 129 test-tool parse-subcommand cmd subcmd-o 2>err &&
+ grep "^error: unknown subcommand: \`subcmd-o$SQ$" err &&
+ grep ^usage: err
+'
+
+test_expect_success 'subcommand - no negated subcommands' '
+ test_expect_code 129 test-tool parse-subcommand cmd no-subcmd-one 2>err &&
+ grep "^error: unknown subcommand: \`no-subcmd-one$SQ" err &&
+ grep ^usage: err
+'
+
+test_expect_success 'subcommand - simple' '
+ test-tool parse-subcommand cmd subcmd-two >actual &&
+ cat >expect <<-\EOF &&
+ opt: 0
+ fn: subcmd_two
+ arg 00: subcmd-two
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'subcommand - stop parsing at the first subcommand' '
+ test-tool parse-subcommand cmd --opt=1 subcmd-two subcmd-one --opt=2 >actual &&
+ cat >expect <<-\EOF &&
+ opt: 1
+ fn: subcmd_two
+ arg 00: subcmd-two
+ arg 01: subcmd-one
+ arg 02: --opt=2
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'subcommand - KEEP_ARGV0' '
+ test-tool parse-subcommand --keep-argv0 cmd subcmd-two >actual &&
+ cat >expect <<-\EOF &&
+ opt: 0
+ fn: subcmd_two
+ arg 00: cmd
+ arg 01: subcmd-two
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'subcommand - SUBCOMMAND_OPTIONAL + subcommand not given' '
+ test-tool parse-subcommand --subcommand-optional cmd >actual &&
+ cat >expect <<-\EOF &&
+ opt: 0
+ fn: subcmd_one
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'subcommand - SUBCOMMAND_OPTIONAL + given subcommand' '
+ test-tool parse-subcommand --subcommand-optional cmd subcmd-two branch file >actual &&
+ cat >expect <<-\EOF &&
+ opt: 0
+ fn: subcmd_two
+ arg 00: subcmd-two
+ arg 01: branch
+ arg 02: file
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'subcommand - SUBCOMMAND_OPTIONAL + subcommand not given + unknown dashless args' '
+ test-tool parse-subcommand --subcommand-optional cmd branch file >actual &&
+ cat >expect <<-\EOF &&
+ opt: 0
+ fn: subcmd_one
+ arg 00: branch
+ arg 01: file
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'subcommand - SUBCOMMAND_OPTIONAL + subcommand not given + unknown option' '
+ test_expect_code 129 test-tool parse-subcommand --subcommand-optional cmd --subcommand-opt 2>err &&
+ grep "^error: unknown option" err &&
+ grep ^usage: err
+'
+
+test_expect_success 'subcommand - SUBCOMMAND_OPTIONAL | KEEP_UNKNOWN_OPT + subcommand not given + unknown option' '
+ test-tool parse-subcommand --subcommand-optional --keep-unknown-opt cmd --subcommand-opt >actual &&
+ cat >expect <<-\EOF &&
+ opt: 0
+ fn: subcmd_one
+ arg 00: --subcommand-opt
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'subcommand - SUBCOMMAND_OPTIONAL | KEEP_UNKNOWN_OPT + subcommand ignored after unknown option' '
+ test-tool parse-subcommand --subcommand-optional --keep-unknown-opt cmd --subcommand-opt subcmd-two >actual &&
+ cat >expect <<-\EOF &&
+ opt: 0
+ fn: subcmd_one
+ arg 00: --subcommand-opt
+ arg 01: subcmd-two
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'subcommand - SUBCOMMAND_OPTIONAL | KEEP_UNKNOWN_OPT + command and subcommand options cannot be mixed' '
+ test-tool parse-subcommand --subcommand-optional --keep-unknown-opt cmd --subcommand-opt branch --opt=1 >actual &&
+ cat >expect <<-\EOF &&
+ opt: 0
+ fn: subcmd_one
+ arg 00: --subcommand-opt
+ arg 01: branch
+ arg 02: --opt=1
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'subcommand - SUBCOMMAND_OPTIONAL | KEEP_UNKNOWN_OPT | KEEP_ARGV0' '
+ test-tool parse-subcommand --subcommand-optional --keep-unknown-opt --keep-argv0 cmd --subcommand-opt branch >actual &&
+ cat >expect <<-\EOF &&
+ opt: 0
+ fn: subcmd_one
+ arg 00: cmd
+ arg 01: --subcommand-opt
+ arg 02: branch
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'subcommand - SUBCOMMAND_OPTIONAL | KEEP_UNKNOWN_OPT | KEEP_DASHDASH' '
+ test-tool parse-subcommand --subcommand-optional --keep-unknown-opt --keep-dashdash cmd -- --subcommand-opt file >actual &&
+ cat >expect <<-\EOF &&
+ opt: 0
+ fn: subcmd_one
+ arg 00: --
+ arg 01: --subcommand-opt
+ arg 02: file
+ EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'subcommand - completion helper' '
+ test-tool parse-subcommand cmd --git-completion-helper >actual &&
+ echo "subcmd-one subcmd-two --opt= --no-opt" >expect &&
+ test_cmp expect actual
+'
+
+test_expect_success 'subcommands are incompatible with STOP_AT_NON_OPTION' '
+ test_must_fail test-tool parse-subcommand --stop-at-non-option cmd subcmd-one 2>err &&
+ grep ^BUG err
+'
+
+test_expect_success 'subcommands are incompatible with KEEP_UNKNOWN_OPT unless in combination with SUBCOMMAND_OPTIONAL' '
+ test_must_fail test-tool parse-subcommand --keep-unknown-opt cmd subcmd-two 2>err &&
+ grep ^BUG err
+'
+
+test_expect_success 'subcommands are incompatible with KEEP_DASHDASH unless in combination with SUBCOMMAND_OPTIONAL' '
+ test_must_fail test-tool parse-subcommand --keep-dashdash cmd subcmd-two 2>err &&
+ grep ^BUG err
+'
+
+test_expect_success 'negative magnitude' '
+ test_must_fail test-tool parse-options --magnitude -1 >out 2>err &&
+ grep "non-negative integer" err &&
+ test_must_be_empty out
+'
+
+test_expect_success 'magnitude with units but no numbers' '
+ test_must_fail test-tool parse-options --magnitude m >out 2>err &&
+ grep "non-negative integer" err &&
+ test_must_be_empty out
+'
+
+test_done