1 files changed, 48 insertions, 0 deletions
diff --git a/t/taint.t b/t/taint.t
new file mode 100644
index 0000000..13f197a
--- /dev/null
+++ b/t/taint.t
@@ -0,0 +1,48 @@
+#!perl -T
+
+use strict;
+use warnings;
+
+use Test::Requires {
+    'Test::Taint' => '0',
+};
+
+use Test::More 0.88;
+use Test::Fatal 0.006;
+
+taint_checking_ok();
+
+{
+    package T;
+
+    use strict;
+    use warnings;
+
+    use lib 't/lib';
+
+    use Module::Implementation;
+    my $loader = Module::Implementation::build_loader_sub(
+        implementations => [ 'Impl1', 'Impl2' ],
+        symbols         => ['return_42'],
+    );
+
+    ::taint( $ENV{T_IMPLEMENTATION} = 'Impl2' );
+
+    ::tainted_ok( $ENV{T_IMPLEMENTATION}, '$ENV{T_IMPLEMENTATION} is tainted' );
+
+    ::is(
+        ::exception{ $loader->() },
+        undef,
+        'no exception when implementation is specified in env var under taint mode'
+    );
+}
+
+{
+    is(
+        Module::Implementation::implementation_for('T'),
+        'Impl2',
+        'T::_implementation returns implementation set in ENV'
+    );
+}
+
+done_testing();