Function

packages/react-dom/src/__tests__/ReactDOMServerIntegrationElements-test.js:827–916

()

    });

    describe('carriage return and null character', () => {
      // HTML parsing normalizes CR and CRLF to LF.
      // It also ignores null character.
      // https://www.w3.org/TR/html5/single-page.html#preprocessing-the-input-stream
      // If we have a mismatch, it might be caused by that (and should not be reported).
      // We won't be patching up in this case as that matches our past behavior.

      itRenders(
        'an element with one text child with special characters',
        async render => {
          const e = await render(<div>{'foo\rbar\r\nbaz\nqux\u0000'}</div>);
          if (
            render === serverRender ||
            render === streamRender ||
            render === clientRenderOnServerString
          ) {
            expect(e.childNodes.length).toBe(1);
            // Everything becomes LF when parsed from server HTML or hydrated.
            // Null character is ignored.
            expectNode(e.childNodes[0], TEXT_NODE_TYPE, 'foo\nbar\nbaz\nqux');
          } else {
            expect(e.childNodes.length).toBe(1);
            // Client rendering uses JS value with CR.
            // Null character stays.

            expectNode(
              e.childNodes[0],
              TEXT_NODE_TYPE,
              'foo\rbar\r\nbaz\nqux\u0000',
            );
          }
        },
      );

      itRenders(
        'an element with two text children with special characters',
        async render => {
          const e = await render(
            <div>
              {'foo\rbar'}
              {'\r\nbaz\nqux\u0000'}
            </div>,
          );
          if (
            render === serverRender ||
            render === streamRender ||
            render === clientRenderOnServerString
          ) {
            // We have three nodes because there is a comment between them.
            expect(e.childNodes.length).toBe(3);
            // Everything becomes LF when parsed from server HTML or hydrated.
            // Null character is ignored.
            expectNode(e.childNodes[0], TEXT_NODE_TYPE, 'foo\nbar');
            expectNode(e.childNodes[2], TEXT_NODE_TYPE, '\nbaz\nqux');
          } else if (render === clientRenderOnServerString) {
            // We have three nodes because there is a comment between them.
            expect(e.childNodes.length).toBe(3);
            // Hydration uses JS value with CR and null character.