test: prove that junction objects work for upload

test/commands/data/tree/dataTreeJunction.ts

@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2020, salesforce.com, inc.
+ * All rights reserved.
+ * Licensed under the BSD 3-Clause license.
+ * For full license text, see LICENSE.txt file in the repo root or https://opensource.org/licenses/BSD-3-Clause
+ */
+import path from 'node:path';
+import { expect } from 'chai';
+import { execCmd, TestSession } from '@salesforce/cli-plugins-testkit';
+import { ImportResult } from '../../../../src/api/data/tree/importTypes.js';
+
+describe('data:tree commands', () => {
+  let testSession: TestSession;
+
+  before(async () => {
+    testSession = await TestSession.create({
+      scratchOrgs: [
+        {
+          config: 'config/project-scratch-def.json',
+          setDefault: true,
+        },
+        {
+          config: 'config/project-scratch-def.json',
+          setDefault: false,
+          alias: 'importOrg',
+        },
+      ],
+      project: { sourceDir: path.join('test', 'test-files', 'data-project') },
+      devhubAuthStrategy: 'AUTO',
+    });
+  });
+
+  after(async () => {
+    await testSession?.clean();
+  });
+
+  it('new tree can import junction objects', () => {
+    const importResult = execCmd<ImportResult[]>(
+      `data:import:beta:tree --plan ${path.join(
+        'data',
+        'junction',
+        'Account-AccountContactRelation-Contact-plan.json'
+      )} --json`,
+      { ensureExitCode: 0 }
+    );
+    expect(importResult.jsonOutput?.result.length).to.equal(12);
+  });
+
+  it('import -> export -> import round trip should succeed', () => {
+    const query =
+      "select Id, Name, (Select Id, FirstName, LastName, (select AccountId, ContactId from AccountContactRoles) from Contacts), (select Id, ContactId, AccountId from AccountContactRelations where Account.Name != 'We Know Everybody') from Account where Name != 'Sample Account for Entitlements'";
+
+    execCmd(`data:export:beta:tree --query "${query}" --outputdir ${path.join('.', 'export_data')} --plan --json`, {
+      ensureExitCode: 0,
+    });
+
+    // Import data to the default org.
+    const importResult = execCmd<ImportResult[]>(
+      `data:import:beta:tree --target-org importOrg --plan ${path.join(
+        '.',
+        'export_data',
+        'Account-AccountContactRelation-Contact-plan.json'
+      )} --json`,
+      {
+        ensureExitCode: 0,
+      }
+    );
+    expect(importResult.jsonOutput?.result.length).to.equal(12);
+  });
+});

test/test-files/data-project/data/junction/Account.json

@@ -1,12 +1,5 @@
 {
   "records": [
-    {
-      "attributes": {
-        "type": "Account",
-        "referenceId": "AccountRef1"
-      },
-      "Name": "Sample Account for Entitlements"
-    },
     {
       "attributes": {
         "type": "Account",