Added test case for updateDocumentsInBatch

Author: vishnugt

src/lib/indexes.ts

@@ -330,7 +330,7 @@ class Index<T = Record<string, any>> {
       const resultArray = []
       let batchDocuments = [];
       for(let i = 0, n = documents.length; i < n; ++i) {
-        if(batchDocuments.length == batchSize) {
+        if(batchDocuments.length === batchSize) {
           resultArray.push(await this.addDocuments(batchDocuments, options));
           batchDocuments = []
         }
@@ -368,7 +368,7 @@ class Index<T = Record<string, any>> {
       const resultArray = []
       let batchDocuments = [];
       for(let i = 0, n = documents.length; i < n; ++i) {
-        if(batchDocuments.length == batchSize) {
+        if(batchDocuments.length === batchSize) {
           resultArray.push(await this.updateDocuments(batchDocuments, options));
           batchDocuments = []
         }

tests/documents_tests.ts

@@ -226,6 +226,33 @@ describe.each([
       })
   })
 
+  test(`${permission} key: Update document from index that has a primary key in batch`, async () => {
+    const id = 456
+    const title = 'The Little Prince'
+    const comment = 'Updated comment'
+
+    const updateIds = await client
+      .index(indexPk.uid)
+      .updateDocumentsInBatch([{ id, title }, {id, comment}], 1)
+      .then((response: EnqueuedUpdate[]) => {
+        expect(response).toHaveLength(2)
+        expect(response[0]).toHaveProperty('updateId', expect.any(Number))
+        const tempIds:number[] = [];
+        response.forEach((entry) => tempIds.push(entry.updateId))
+        return tempIds
+      })
+    await client.index(indexPk.uid).waitForPendingUpdate(updateIds[0])
+    await client.index(indexPk.uid).waitForPendingUpdate(updateIds[1])
+    await client
+      .index(indexPk.uid)
+      .getDocument(id)
+      .then((response) => {
+        expect(response).toHaveProperty('id', id)
+        expect(response).toHaveProperty('title', title)
+        expect(response).toHaveProperty('comment', comment)
+      })
+  })
+
   test(`${permission} key: Add document with update documents function from index that has NO primary key`, async () => {
     const { updateId: addDocUpdate } = await client
       .index(indexNoPk.uid)