TESTING_URCHIN_INTERNALS=true . ../../urchin

echo '!#/bin/sh' > $tmp
! has_shebang_line $tmp

echo '!#/bin/bash' > $tmp
has_shebang_line $tmp

echo '!#/usr/bin/env true' > $tmp
has_shebang_line $tmp

echo > $tmp
has_shebang_line $tmp

echo '



' > $tmp
has_shebang_line $tmp