Introduce framework for running basic tests for entities (#1344)

* Introduce framework for running basic tests for entities

* Add pipeline tests to CircleCI config

* Make pipeline tests more configurable and fix CircleCI config

* Add coverage dir to pipeline package

* Add basic tests for all exchange event entities

* Add tests for remaining entities

* Create separate test scripts in package.json and add new info to README

* Update db_setup.ts to revert migrations even if you are using docker

* Automatically pull the postgres image if needed

* Add comment about why NumberToBigIntTransformer is needed

1 files changed, 25 insertions, 0 deletions

diff --git a/packages/pipeline/test/entities/transaction_test.ts b/packages/pipeline/test/entities/transaction_test.ts
new file mode 100644
index 000000000..027de7d32
--- /dev/null
+++ b/packages/pipeline/test/entities/transaction_test.ts
@@ -0,0 +1,25 @@
+import 'mocha';
+import 'reflect-metadata';
+
+import { Transaction } from '../../src/entities';
+import { createDbConnectionOnceAsync } from '../db_setup';
+import { chaiSetup } from '../utils/chai_setup';
+
+import { testSaveAndFindEntityAsync } from './util';
+
+chaiSetup.configure();
+
+// tslint:disable:custom-no-magic-numbers
+describe('Transaction entity', () => {
+    it('save/find', async () => {
+        const connection = await createDbConnectionOnceAsync();
+        const transactionRepository = connection.getRepository(Transaction);
+        const transaction = new Transaction();
+        transaction.blockHash = '0x6ff106d00b6c3746072fc06bae140fb2549036ba7bcf9184ae19a42fd33657fd';
+        transaction.blockNumber = 6276262;
+        transaction.gasPrice = 3000000;
+        transaction.gasUsed = 125000;
+        transaction.transactionHash = '0x6dd106d002873746072fc5e496dd0fb2541b68c77bcf9184ae19a42fd33657fe';
+        await testSaveAndFindEntityAsync(transactionRepository, transaction);
+    });
+});