test(countDistinct): countDistinctQuery

test/models/table/count/countDistinctQuery.js

@@ -0,0 +1,41 @@
+/* global describe, it, before */
+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: countDistinctQuery', () => { // eslint-disable-line max-lines-per-function
+  before(async () => {
+    await knex.seed.run();
+  });
+
+  it('happy path', async () => {
+    const results = await Coffee.countDistinctQuery({}, { countDistinct: 'price' });
+    assert.deepEqual(results, [{ count: '3' }]);
+  });
+
+  it('With query', async () => {
+    const results = await Coffee.countDistinctQuery({ price: ['is not', null] }, { countDistinct: 'price' });
+    assert.deepEqual(results, [{ count: '2' }]);
+  });
+
+  it('options is undefined', () => {
+    try {
+      Coffee.countDistinctQuery({ price: ['is not', null] });
+    } catch (err) {
+      assert.equal(err.chinchayCode, 'missing_count_distinct');
+    }
+  });
+
+  it('options.countDistinct is undefined', () => {
+    try {
+      Coffee.countDistinctQuery({ price: ['is not', null] }, {});
+    } catch (err) {
+      assert.equal(err.chinchayCode, 'missing_count_distinct');
+    }
+  });
+});