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-rwxr-xr-xt/t0040-parse-options.sh185
1 files changed, 185 insertions, 0 deletions
diff --git a/t/t0040-parse-options.sh b/t/t0040-parse-options.sh
index 264b737309..b19b8d3486 100755
--- a/t/t0040-parse-options.sh
+++ b/t/t0040-parse-options.sh
@@ -526,4 +526,189 @@ test_expect_success 'KEEP_UNKNOWN_OPT | NO_INTERNAL_HELP works' '
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_done