assertTofuOutput("", "", escapeHtmlDirective);
assertTofuOutput("a&b > c", "a&b > c", escapeHtmlDirective);
assertTofuOutput(
"<script>alert('boo');</script>",
"<script>alert('boo');</script>", escapeHtmlDirective);
SanitizedContent fooTagHtml =
UnsafeSanitizedContentOrdainer.ordainAsSafe("<foo>", SanitizedContent.ContentKind.HTML);
assertTofuOutput(
fooTagHtml,
// Sanitized HTML is not escaped.
fooTagHtml,