don't check the productMap for translations (#25589)

* don't check the productMap for translations

* fix breaking test

Author: peterbe

lib/page.js

@@ -97,18 +97,23 @@ class Page {
     // Get array of versions that the page is available in for fast lookup
     this.applicableVersions = getApplicableVersions(this.versions, this.fullPath)
 
-    // a page should only be available in versions that its parent product is available in
-    const versionsParentProductIsNotAvailableIn = this.applicableVersions
-      // only the homepage will not have this.parentProduct
-      .filter(
-        (availableVersion) =>
-          this.parentProduct && !this.parentProduct.versions.includes(availableVersion)
-      )
-
-    if (versionsParentProductIsNotAvailableIn.length) {
-      throw new Error(
-        `\`versions\` frontmatter in ${this.fullPath} contains ${versionsParentProductIsNotAvailableIn}, which ${this.parentProduct.id} product is not available in!`
-      )
+    // Only check the parent product ID for English because if a top-level
+    // product is edited in English, it will fail for translations until
+    // the next translation pipeline PR gets a chance to catch up.
+    if (this.languageCode === 'en') {
+      // a page should only be available in versions that its parent product is available in
+      const versionsParentProductIsNotAvailableIn = this.applicableVersions
+        // only the homepage will not have this.parentProduct
+        .filter(
+          (availableVersion) =>
+            this.parentProduct && !this.parentProduct.versions.includes(availableVersion)
+        )
+
+      if (versionsParentProductIsNotAvailableIn.length) {
+        throw new Error(
+          `\`versions\` frontmatter in ${this.fullPath} contains ${versionsParentProductIsNotAvailableIn}, which ${this.parentProduct.id} product is not available in!`
+        )
+      }
     }
 
     // derive array of Permalink objects

tests/unit/page.js

@@ -781,20 +781,6 @@ describe('catches errors thrown in Page class', () => {
     expect(getPage).rejects.toThrowError(/`versions` frontmatter.*? product is not available in/)
   })
 
-  test('non-English page with a version in frontmatter that its parent product is not available in', async () => {
-    async function getPage() {
-      return await Page.init({
-        relativePath: 'admin/some-category/some-article-with-mismatched-versions-frontmatter.md',
-        basePath: path.join(__dirname, '../fixtures/products'),
-        languageCode: 'es',
-      })
-    }
-
-    await expect(getPage).rejects.toThrowError(
-      /`versions` frontmatter.*? product is not available in/
-    )
-  })
-
   describe('versionining optional attributes', () => {
     test("re-rendering set appropriate 'product', 'permissions', 'learningTracks'", async () => {
       const page = await Page.init({