[tests] split python e2e tests into chunks (#9771)

Split python tests into two chunks. They take <10m each.

packages/python/test/integration-setup.js

@@ -0,0 +1,52 @@
+const fs = require('fs');
+const path = require('path');
+const { intoChunks } = require('../../../utils/chunk-tests');
+
+const {
+  testDeployment,
+} = require('../../../test/lib/deployment/test-deployment.js');
+
+jest.setTimeout(4 * 60 * 1000);
+
+module.exports = function setupTests(groupIndex) {
+  const fixturesPath = path.resolve(__dirname, 'fixtures');
+  const testsThatFailToBuild = new Map([
+    ['30-fail-build-invalid-pipfile', 'Unable to parse Pipfile.lock'],
+    [
+      '31-fail-build-invalid-python36',
+      'Python version "3.6" detected in Pipfile.lock is discontinued and must be upgraded.',
+    ],
+  ]);
+  const allFixtures = fs.readdirSync(fixturesPath);
+
+  let chunkedFixtures = allFixtures;
+  if (typeof groupIndex !== 'undefined') {
+    chunkedFixtures = intoChunks(1, 2, allFixtures)[groupIndex - 1];
+
+    console.log('testing group', groupIndex, chunkedFixtures);
+  }
+
+  // eslint-disable-next-line no-restricted-syntax
+  for (const fixture of chunkedFixtures) {
+    const errMsg = testsThatFailToBuild.get(fixture);
+    if (errMsg) {
+      // eslint-disable-next-line no-loop-func
+      it(`should fail to build ${fixture}`, async () => {
+        try {
+          await testDeployment(path.join(fixturesPath, fixture));
+        } catch (err) {
+          expect(err).toBeTruthy();
+          expect(err.deployment).toBeTruthy();
+          expect(err.deployment.errorMessage).toBe(errMsg);
+        }
+      });
+      continue; //eslint-disable-line
+    }
+    // eslint-disable-next-line no-loop-func
+    it(`should build ${fixture}`, async () => {
+      await expect(
+        testDeployment(path.join(fixturesPath, fixture))
+      ).resolves.toBeDefined();
+    });
+  }
+};