test(deleteById): test for deleteById

test/models/table/delete/deleteById.js

@@ -0,0 +1,42 @@
+// During the test the env variable is set to test
+process.env.NODE_ENV = 'test';
+
+// Require the dev-dependencies
+const { assert } = require('chai');
+const knex = require('../../../../knex');
+const Coffee = require('../../../../models/coffee-example');
+
+
+// Our parent block
+describe('TABLE GATEWAY: deleteById', () => { // eslint-disable-line
+  before(async () => { // eslint-disable-line
+    await knex.seed.run();
+  });
+
+  it('With valid id', async () => { // eslint-disable-line
+    const all = await Coffee.count();
+    const deleted = await Coffee.deleteById(1);
+    const results = await Coffee.count();
+    assert.equal(results, all - 1);
+    assert.isNotArray(deleted);
+    assert.equal(deleted.id, 1);
+  });
+  it('returnAsQuery', async () => { // eslint-disable-line
+    const query = Coffee.deleteById(1, { returnAsQuery: true });
+    assert.equal(query.toString(), 'delete from "coffee" where "id" = 1 returning *');
+  });
+
+  describe('Malicious happy path', () => { // eslint-disable-line
+    before(async () => { // eslint-disable-line
+      await knex.seed.run();
+    });
+
+    it('Invalid type', (done) => { // eslint-disable-line
+      Coffee.deleteById('invalid type').then(() => {
+        done('SHOULD NOT GET HERE');
+      }).catch(() => {
+        done();
+      });
+    });
+  });
+});