Add tests

t/900_bugs/020_switch_foo.t

@@ -0,0 +1,28 @@
+#!perl
+# http://twitter.com/#!/ryochin/status/137041211054768128
+use strict;
+use Test::More;
+
+use Text::Xslate;
+
+my $tx = Text::Xslate->new(
+    syntax => 'TTerse',
+    cache  => 0,
+);
+
+eval {
+    $tx->render_string(<<'T');
+    %% if
+T
+};
+ok $@;
+
+eval {
+    $tx->render_string(<<'T');
+    %% switch.foo
+T
+};
+ok $@;
+
+done_testing;
+