Add test for JSX text (#20023)

tests/format/jsx/jsx-text/__snapshots__/format.test.js.snap

@@ -0,0 +1,55 @@
+// Jest Snapshot v1, https://jestjs.io/docs/snapshot-testing
+
+exports[`code-point.jsx format 1`] = `
+====================================options=====================================
+parsers: ["babel", "typescript", "flow"]
+                                                      printWidth: 80 (default) |
+=====================================input======================================
+_ = <a>&#x110000; &#1114112;</a>
+_ = <a>&#1234;</a>
+_ = <a>&#xABC;</a>
+_ = <a>&#00000000000000000000001234;</a>
+_ = <a>&#x0000000000000000000000ABC;</a>
+_ = <a>&#0000;</a>
+_ = <a>&#x10ffff;</a>
+_ = <a>&#128; &#x80;</a>
+
+=====================================output=====================================
+_ = <a>&#x110000; &#1114112;</a>;
+_ = <a>&#1234;</a>;
+_ = <a>&#xABC;</a>;
+_ = <a>&#00000000000000000000001234;</a>;
+_ = <a>&#x0000000000000000000000ABC;</a>;
+_ = <a>&#0000;</a>;
+_ = <a>&#x10ffff;</a>;
+_ = <a>&#128; &#x80;</a>;
+
+================================================================================
+`;
+
+exports[`named-entries.jsx format 1`] = `
+====================================options=====================================
+parsers: ["babel", "typescript", "flow"]
+                                                      printWidth: 80 (default) |
+=====================================input======================================
+_ = <a>&there4;</a>
+_ = <a>&constructor;</a>
+_ = <a>&amp;</a>
+_ = <a>&amp</a>
+_ = <a>&foo;</a>
+
+// HTML5 entries
+_ = <a>&rbrace;</a>
+
+=====================================output=====================================
+_ = <a>&there4;</a>;
+_ = <a>&constructor;</a>;
+_ = <a>&amp;</a>;
+_ = <a>&amp</a>;
+_ = <a>&foo;</a>;
+
+// HTML5 entries
+_ = <a>&rbrace;</a>;
+
+================================================================================
+`;

tests/format/jsx/jsx-text/code-point.jsx

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+_ = <a>&#x110000; &#1114112;</a>
+_ = <a>&#1234;</a>
+_ = <a>&#xABC;</a>
+_ = <a>&#00000000000000000000001234;</a>
+_ = <a>&#x0000000000000000000000ABC;</a>
+_ = <a>&#0000;</a>
+_ = <a>&#x10ffff;</a>
+_ = <a>&#128; &#x80;</a>

tests/format/jsx/jsx-text/format.test.js

@@ -0,0 +1 @@
+runFormatTest(import.meta, ["babel", "typescript", "flow"]);

tests/format/jsx/jsx-text/named-entries.jsx

@@ -0,0 +1,8 @@
+_ = <a>&there4;</a>
+_ = <a>&constructor;</a>
+_ = <a>&amp;</a>
+_ = <a>&amp</a>
+_ = <a>&foo;</a>
+
+// HTML5 entries
+_ = <a>&rbrace;</a>