chore: remove selectorsV2Enabled switch (#4880)

Selectors V2 seem to stick.

src/server/common/selectorParser.ts

@@ -26,28 +26,21 @@ export type ParsedSelector = {
   capture?: number,
 };
 
-export function selectorsV2Enabled() {
-  return true;
-}
-
 const customCSSNames = new Set(['not', 'is', 'where', 'has', 'scope', 'light', 'visible', 'text', 'text-matches', 'text-is']);
 
 export function parseSelector(selector: string): ParsedSelector {
   const result = parseSelectorV1(selector);
-
+  result.parts = result.parts.map(part => {
-  if (selectorsV2Enabled()) {
+    if (Array.isArray(part))
-    result.parts = result.parts.map(part => {
-      if (Array.isArray(part))
-        return part;
-      if (part.name === 'css' || part.name === 'css:light') {
-        if (part.name === 'css:light')
-          part.body = ':light(' + part.body + ')';
-        const parsedCSS = parseCSS(part.body, customCSSNames);
-        return parsedCSS.selector;
-      }
       return part;
-    });
+    if (part.name === 'css' || part.name === 'css:light') {
-  }
+      if (part.name === 'css:light')
+        part.body = ':light(' + part.body + ')';
+      const parsedCSS = parseCSS(part.body, customCSSNames);
+      return parsedCSS.selector;
+    }
+    return part;
+  });
   return {
     parts: result.parts,
     capture: result.capture,

test/queryselector.spec.ts

@@ -16,7 +16,6 @@
  */
 
 import { it, expect } from './fixtures';
-import { selectorsV2Enabled } from '../src/server/common/selectorParser';
 
 it('should throw for non-string selector', async ({page}) => {
   const error = await page.$(null).catch(e => e);
@@ -59,8 +58,6 @@ it('should auto-detect xpath selector with starting parenthesis', async ({page,
 });
 
 it('should auto-detect xpath selector starting with ..', async ({page, server}) => {
-  if (selectorsV2Enabled())
-    return; // Selectors v2 do not support this.
   await page.setContent('<div><section>test</section><span></span></div>');
   const span = await page.$('"test" >> ../span');
   expect(await span.evaluate(e => e.nodeName)).toBe('SPAN');

test/selectors-css.spec.ts

@@ -16,7 +16,6 @@
  */
 
 import { it, expect } from './fixtures';
-import { selectorsV2Enabled } from '../src/server/common/selectorParser';
 
 it('should work with large DOM', async ({page, server}) => {
   await page.evaluate(() => {
@@ -240,7 +239,7 @@ it('should work with *', async ({page}) => {
   expect(await body.$$eval('div *', els => els.length)).toBe(2);
   // Selectors v2 matches jquery in the sense that matching starts with the element scope,
   // not the document scope.
-  expect(await body.$$eval('* > *', els => els.length)).toBe(selectorsV2Enabled() ? 2 : 4);
+  expect(await body.$$eval('* > *', els => els.length)).toBe(2);
   // Adding scope makes querySelectorAll work like jquery.
   expect(await body.$$eval(':scope * > *', els => els.length)).toBe(2);
   // Note that the following two selectors are following jquery logic even
@@ -310,18 +309,13 @@ it('should work with +', async ({page}) => {
   expect(await page.$$eval(`css=div + #div1`, els => els.length)).toBe(0);
   expect(await page.$$eval(`css=section > div + div ~ div`, els => els.length)).toBe(4);
   expect(await page.$$eval(`css=section > div + #div4 ~ div`, els => els.length)).toBe(2);
-  if (selectorsV2Enabled()) {
+  expect(await page.$$eval(`css=section:has(:scope > div + #div2)`, els => els.length)).toBe(1);
-    // Selectors v1 do not support this.
+  expect(await page.$$eval(`css=section:has(:scope > div + #div1)`, els => els.length)).toBe(0);
-    expect(await page.$$eval(`css=section:has(:scope > div + #div2)`, els => els.length)).toBe(1);
-    expect(await page.$$eval(`css=section:has(:scope > div + #div1)`, els => els.length)).toBe(0);
-  }
   // TODO: the following does not work. Should it?
   // expect(await page.$eval(`css=div:has(:scope + #div5)`, e => e.id)).toBe('div4');
 });
 
 it('should work with spaces in :nth-child and :not', async ({page, server}) => {
-  if (!selectorsV2Enabled())
-    return; // Selectors v1 do not support this.
   await page.goto(server.PREFIX + '/deep-shadow.html');
   expect(await page.$$eval(`css=span:nth-child(23n +2)`, els => els.length)).toBe(1);
   expect(await page.$$eval(`css=span:nth-child(23n+ 2)`, els => els.length)).toBe(1);
@@ -336,8 +330,6 @@ it('should work with spaces in :nth-child and :not', async ({page, server}) => {
 });
 
 it('should work with :is', async ({page, server}) => {
-  if (!selectorsV2Enabled())
-    return; // Selectors v1 do not support this.
   await page.goto(server.PREFIX + '/deep-shadow.html');
   expect(await page.$$eval(`css=div:is(#root1)`, els => els.length)).toBe(1);
   expect(await page.$$eval(`css=div:is(#root1, #target)`, els => els.length)).toBe(1);
@@ -352,8 +344,6 @@ it('should work with :is', async ({page, server}) => {
 });
 
 it('should work with :has', async ({page, server}) => {
-  if (!selectorsV2Enabled())
-    return; // Selectors v1 do not support this.
   await page.goto(server.PREFIX + '/deep-shadow.html');
   expect(await page.$$eval(`css=div:has(#target)`, els => els.length)).toBe(2);
   expect(await page.$$eval(`css=div:has([data-testid=foo])`, els => els.length)).toBe(3);
@@ -361,8 +351,6 @@ it('should work with :has', async ({page, server}) => {
 });
 
 it('should work with :scope', async ({page, server}) => {
-  if (!selectorsV2Enabled())
-    return; // Selectors v1 do not support this.
   await page.goto(server.PREFIX + '/deep-shadow.html');
   // 'is' does not change the scope, so it remains 'html'.
   expect(await page.$$eval(`css=div:is(:scope#root1)`, els => els.length)).toBe(0);

test/selectors-misc.spec.ts

@@ -16,7 +16,6 @@
  */
 
 import { it, expect } from './fixtures';
-import { selectorsV2Enabled } from '../src/server/common/selectorParser';
 
 it('should work for open shadow roots', async ({page, server}) => {
   await page.goto(server.PREFIX + '/deep-shadow.html');
@@ -29,8 +28,6 @@ it('should work for open shadow roots', async ({page, server}) => {
 });
 
 it('should work with :visible', async ({page}) => {
-  if (!selectorsV2Enabled())
-    return; // Selectors v1 do not support this.
   await page.setContent(`
     <section>
       <div id=target1></div>
@@ -53,9 +50,6 @@ it('should work with :visible', async ({page}) => {
 it('should work with proximity selectors', test => {
   test.skip('Not ready yet');
 }, async ({page}) => {
-  if (!selectorsV2Enabled())
-    return; // Selectors v1 do not support this.
-
   /*
 
        +--+  +--+

test/selectors-text.spec.ts

@@ -16,7 +16,6 @@
  */
 
 import { it, expect } from './fixtures';
-import { selectorsV2Enabled } from '../src/server/common/selectorParser';
 
 it('should work', async ({page}) => {
   await page.setContent(`<div>yo</div><div>ya</div><div>\nye  </div>`);
@@ -108,8 +107,6 @@ it('should work', async ({page}) => {
 });
 
 it('should work in v2', async ({page}) => {
-  if (!selectorsV2Enabled())
-    return; // Selectors v1 do not support this.
   await page.setContent(`<div>yo</div><div>ya</div><div>\nHELLO   \n world  </div>`);
   expect(await page.$eval(`:text("ya")`, e => e.outerHTML)).toBe('<div>ya</div>');
   expect(await page.$eval(`:text-is("ya")`, e => e.outerHTML)).toBe('<div>ya</div>');