help: use parseopt

diff --git a/t/t0040-parse-options.sh b/t/t0040-parse-options.sh
index 462fdf262fe451c14679753018a415e1cc778732..0e2933a984fcf6a23b60e54ed43c411c699d4347 100755 (executable)
--- a/t/t0040-parse-options.sh
+++ b/t/t0040-parse-options.sh
@@ -19,6 +19,7 @@ string options
                           get a string
     --string2 <str>       get another string
     --st <st>             get another string (pervert ordering)
+    -o <str>              get another string
 
 EOF
 
@@ -86,9 +87,9 @@ test_expect_success 'unambiguously abbreviated option with "="' '
        git diff expect output
 '
 
-test_expect_failure 'ambiguously abbreviated option' '
+test_expect_success 'ambiguously abbreviated option' '
        test-parse-options --strin 123;
-        test $? != 129
+       test $? = 129
 '
 
 cat > expect << EOF
@@ -103,4 +104,14 @@ test_expect_success 'non ambiguous option (after two options it abbreviates)' '
        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