test_cmp empty err
'
+test_expect_success 'run_command does not try to execute a directory' '
+ test_when_finished "rm -rf bin1 bin2" &&
+ mkdir -p bin1/greet bin2 &&
+ write_script bin2/greet <<-\EOF &&
+ cat bin2/greet
+ EOF
+
+ PATH=$PWD/bin1:$PWD/bin2:$PATH \
+ test-run-command run-command greet >actual 2>err &&
+ test_cmp bin2/greet actual &&
+ test_cmp empty err
+'
+
+test_expect_success POSIXPERM 'run_command passes over non-executable file' '
+ test_when_finished "rm -rf bin1 bin2" &&
+ mkdir -p bin1 bin2 &&
+ write_script bin1/greet <<-\EOF &&
+ cat bin1/greet
+ EOF
+ chmod -x bin1/greet &&
+ write_script bin2/greet <<-\EOF &&
+ cat bin2/greet
+ EOF
+
+ PATH=$PWD/bin1:$PWD/bin2:$PATH \
+ test-run-command run-command greet >actual 2>err &&
+ test_cmp bin2/greet actual &&
+ test_cmp empty err
+'
+
test_expect_success POSIXPERM 'run_command reports EACCES' '
cat hello-script >hello.sh &&
chmod -x hello.sh &&