[PATCH v3 4/8] t1502: test option negation

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Add tests for checking the "git rev-parse --parseopt" flag "!" and
whether options can be negated with a "no-" prefix.

Signed-off-by: René Scharfe <l.s.r@xxxxxx>
---
 t/t1502-rev-parse-parseopt.sh | 44 +++++++++++++++++++++++++++++++++++
 t/t1502/optionspec-neg        |  8 +++++++
 t/t1502/optionspec-neg.help   | 11 +++++++++
 3 files changed, 63 insertions(+)
 create mode 100644 t/t1502/optionspec-neg
 create mode 100644 t/t1502/optionspec-neg.help

diff --git a/t/t1502-rev-parse-parseopt.sh b/t/t1502-rev-parse-parseopt.sh
index 813ee5872f..0f7c2db4c0 100755
--- a/t/t1502-rev-parse-parseopt.sh
+++ b/t/t1502-rev-parse-parseopt.sh
@@ -3,6 +3,22 @@
 test_description='test git rev-parse --parseopt'
 . ./test-lib.sh

+check_invalid_long_option () {
+	spec="$1"
+	opt="$2"
+	test_expect_success "test --parseopt invalid switch $opt help output for $spec" '
+		{
+			cat <<-\EOF &&
+			error: unknown option `'${opt#--}\''
+			EOF
+			sed -e 1d -e \$d <"$TEST_DIRECTORY/t1502/$spec.help"
+		} >expect &&
+		test_expect_code 129 git rev-parse --parseopt -- $opt \
+			2>output <"$TEST_DIRECTORY/t1502/$spec" &&
+		test_cmp expect output
+	'
+}
+
 test_expect_success 'setup optionspec' '
 	sed -e "s/^|//" >optionspec <<\EOF
 |some-command [options] <args>...
@@ -278,4 +294,32 @@ test_expect_success 'test --parseopt help output: multi-line blurb after empty l
 	test_cmp expect actual
 '

+test_expect_success 'test --parseopt help output for optionspec-neg' '
+	test_expect_code 129 git rev-parse --parseopt -- \
+		-h >output <"$TEST_DIRECTORY/t1502/optionspec-neg" &&
+	test_cmp "$TEST_DIRECTORY/t1502/optionspec-neg.help" output
+'
+
+test_expect_success 'test --parseopt valid options for optionspec-neg' '
+	cat >expect <<-\EOF &&
+	set -- --foo --no-foo --no-bar --positive-only --no-negative --
+	EOF
+	git rev-parse --parseopt -- <"$TEST_DIRECTORY/t1502/optionspec-neg" >output \
+	       --foo --no-foo --no-bar --positive-only --no-negative &&
+	test_cmp expect output
+'
+
+test_expect_success 'test --parseopt positivated option for optionspec-neg' '
+	cat >expect <<-\EOF &&
+	set -- --no-no-bar --no-no-bar --
+	EOF
+	git rev-parse --parseopt -- <"$TEST_DIRECTORY/t1502/optionspec-neg" >output \
+	       --no-no-bar --bar &&
+	test_cmp expect output
+'
+
+check_invalid_long_option optionspec-neg --no-positive-only
+check_invalid_long_option optionspec-neg --negative
+check_invalid_long_option optionspec-neg --no-no-negative
+
 test_done
diff --git a/t/t1502/optionspec-neg b/t/t1502/optionspec-neg
new file mode 100644
index 0000000000..28992ee303
--- /dev/null
+++ b/t/t1502/optionspec-neg
@@ -0,0 +1,8 @@
+some-command [options] <args>...
+
+some-command does foo and bar!
+--
+foo		can be negated
+no-bar		can be positivated
+positive-only!	cannot be negated
+no-negative!	cannot be positivated
diff --git a/t/t1502/optionspec-neg.help b/t/t1502/optionspec-neg.help
new file mode 100644
index 0000000000..591f4dcd9f
--- /dev/null
+++ b/t/t1502/optionspec-neg.help
@@ -0,0 +1,11 @@
+cat <<\EOF
+usage: some-command [options] <args>...
+
+    some-command does foo and bar!
+
+    --foo                 can be negated
+    --no-bar              can be positivated
+    --positive-only       cannot be negated
+    --no-negative         cannot be positivated
+
+EOF
--
2.41.0




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