1 files changed, 117 insertions, 0 deletions
diff --git a/t/t0040-parse-options.sh b/t/t0040-parse-options.sh
new file mode 100755
index 0000000000..0e2933a984
--- /dev/null
+++ b/t/t0040-parse-options.sh
@@ -0,0 +1,117 @@
+#!/bin/sh
+#
+# Copyright (c) 2007 Johannes Schindelin
+#
+
+test_description='our own option parser'
+
+. ./test-lib.sh
+
+cat > expect.err << EOF
+usage: test-parse-options <options>
+
+    -b, --boolean         get a boolean
+    -i, --integer <n>     get a integer
+    -j <n>                get a integer, too
+
+string options
+    -s, --string <string>
+                          get a string
+    --string2 <str>       get another string
+    --st <st>             get another string (pervert ordering)
+    -o <str>              get another string
+
+EOF
+
+test_expect_success 'test help' '
+	! test-parse-options -h > output 2> output.err &&
+	test ! -s output &&
+	git diff expect.err output.err
+'
+
+cat > expect << EOF
+boolean: 2
+integer: 1729
+string: 123
+EOF
+
+test_expect_success 'short options' '
+	test-parse-options -s123 -b -i 1729 -b > output 2> output.err &&
+	git diff expect output &&
+	test ! -s output.err
+'
+cat > expect << EOF
+boolean: 2
+integer: 1729
+string: 321
+EOF
+
+test_expect_success 'long options' '
+	test-parse-options --boolean --integer 1729 --boolean --string2=321 \
+		> output 2> output.err &&
+	test ! -s output.err &&
+	git diff expect output
+'
+
+cat > expect << EOF
+boolean: 1
+integer: 13
+string: 123
+arg 00: a1
+arg 01: b1
+arg 02: --boolean
+EOF
+
+test_expect_success 'intermingled arguments' '
+	test-parse-options a1 --string 123 b1 --boolean -j 13 -- --boolean \
+		> output 2> output.err &&
+	test ! -s output.err &&
+	git diff expect output
+'
+
+cat > expect << EOF
+boolean: 0
+integer: 2
+string: (not set)
+EOF
+
+test_expect_success 'unambiguously abbreviated option' '
+	test-parse-options --int 2 --boolean --no-bo > output 2> output.err &&
+	test ! -s output.err &&
+	git diff expect output
+'
+
+test_expect_success 'unambiguously abbreviated option with "="' '
+	test-parse-options --int=2 > output 2> output.err &&
+	test ! -s output.err &&
+	git diff expect output
+'
+
+test_expect_success 'ambiguously abbreviated option' '
+	test-parse-options --strin 123;
+	test $? = 129
+'
+
+cat > expect << EOF
+boolean: 0
+integer: 0
+string: 123
+EOF
+
+test_expect_success 'non ambiguous option (after two options it abbreviates)' '
+	test-parse-options --st 123 > output 2> output.err &&
+	test ! -s output.err &&
+	git diff expect output
+'
+
+cat > expect.err << EOF
+error: did you mean \`--boolean\` (with two dashes ?)
+EOF
+
+test_expect_success 'detect possible typos' '
+	! test-parse-options -boolean > output 2> output.err &&
+	test ! -s output &&
+	git diff expect.err output.err
+'
+
+test_done