public function testNormalizeKey() { $h = new Headers(); $this->assertEquals('foo-bar', $h->normalizeKey('HTTP_FOO_BAR')); $this->assertEquals('foo-bar', $h->normalizeKey('HTTP-FOO-BAR')); $this->assertEquals('foo-bar', $h->normalizeKey('Http-Foo-Bar')); $this->assertEquals('foo-bar', $h->normalizeKey('Http_Foo_Bar')); $this->assertEquals('foo-bar', $h->normalizeKey('http_foo_bar')); $this->assertEquals('foo-bar', $h->normalizeKey('http-foo-bar')); }