From 147cf400a43d531e9da85cf9a29791170d5b7295 Mon Sep 17 00:00:00 2001
From: Vladimir Volek <vladimir.volek@satoshilabs.com>
Date: Tue, 2 Oct 2018 19:55:22 +0200
Subject: [PATCH] Added basic tests

---
 jest.config.js                                |  1 +
 .../__snapshots__/index.test.js.snap          | 37 +++++++
 src/reducers/utils/__tests__/index.test.js    | 99 +++++++++++++++++++
 3 files changed, 137 insertions(+)
 create mode 100644 src/reducers/utils/__tests__/__snapshots__/index.test.js.snap
 create mode 100644 src/reducers/utils/__tests__/index.test.js

diff --git a/jest.config.js b/jest.config.js
index d9c12451..3f20eda3 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -12,6 +12,7 @@ module.exports = {
     ],
     collectCoverageFrom: [
         'utils/**.js',
+        'reducers/utils/**.js',
     ],
     setupFiles: [
         './support/setupJest.js',
diff --git a/src/reducers/utils/__tests__/__snapshots__/index.test.js.snap b/src/reducers/utils/__tests__/__snapshots__/index.test.js.snap
new file mode 100644
index 00000000..f1703259
--- /dev/null
+++ b/src/reducers/utils/__tests__/__snapshots__/index.test.js.snap
@@ -0,0 +1,37 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`reducers utils observeChanges shoud be the same - returns false 1`] = `false`;
+
+exports[`reducers utils observeChanges shoud be the same - returns false 2`] = `false`;
+
+exports[`reducers utils observeChanges shoud be the same - returns false 3`] = `false`;
+
+exports[`reducers utils observeChanges shoud be the same - returns false 4`] = `false`;
+
+exports[`reducers utils observeChanges shoud be the same - returns false 5`] = `false`;
+
+exports[`reducers utils observeChanges shoud be the same - returns false 6`] = `false`;
+
+exports[`reducers utils observeChanges shoud be the same - returns false 7`] = `false`;
+
+exports[`reducers utils observeChanges shoud be the same - returns false 8`] = `false`;
+
+exports[`reducers utils observeChanges shoud be the same - returns false 9`] = `false`;
+
+exports[`reducers utils observeChanges shoul NOT be the same - returns true 1`] = `true`;
+
+exports[`reducers utils observeChanges shoul NOT be the same - returns true 2`] = `true`;
+
+exports[`reducers utils observeChanges shoul NOT be the same - returns true 3`] = `true`;
+
+exports[`reducers utils observeChanges shoul NOT be the same - returns true 4`] = `true`;
+
+exports[`reducers utils observeChanges shoul NOT be the same - returns true 5`] = `true`;
+
+exports[`reducers utils observeChanges shoul NOT be the same - returns true 6`] = `true`;
+
+exports[`reducers utils observeChanges shoul NOT be the same - returns true 7`] = `true`;
+
+exports[`reducers utils observeChanges shoul NOT be the same - returns true 8`] = `true`;
+
+exports[`reducers utils observeChanges shoul NOT be the same - returns true 9`] = `true`;
diff --git a/src/reducers/utils/__tests__/index.test.js b/src/reducers/utils/__tests__/index.test.js
new file mode 100644
index 00000000..dc937181
--- /dev/null
+++ b/src/reducers/utils/__tests__/index.test.js
@@ -0,0 +1,99 @@
+import * as reducerUtils from '../index';
+
+describe('reducers utils', () => {
+    it('observeChanges shoud be the same - returns false', () => {
+        const data = [
+            // example of same data (false)
+            {
+                pervious: {},
+                current: {},
+            },
+            {
+                pervious: 1,
+                current: 1,
+            },
+            {
+                pervious: [],
+                current: [],
+            },
+            {
+                pervious: 'a',
+                current: 'a',
+            },
+            {
+                pervious: { test: 1 },
+                current: { test: 1 },
+            },
+            {
+                pervious: { test: { test: 1 } },
+                current: { test: { test: 1 } },
+            },
+            {
+                pervious: { test: { test: [1, 2, 3] } },
+                current: { test: { test: [1, 2, 3] } },
+            },
+            {
+                pervious: { test: { test: [1, { test: 1 }, 3] } },
+                current: { test: { test: [1, { test: 1 }, 3] } },
+            },
+            {
+                pervious: { test: { test: [1, { test: 1 }, { test: 3, test1: { test: 3 } }] } },
+                current: { test: { test: [1, { test: 1 }, { test: 3, test1: { test: 3 } }] } },
+            },
+        ];
+
+        data.forEach((item) => {
+            expect(reducerUtils.observeChanges(
+                item.pervious, item.current,
+            )).toMatchSnapshot();
+        });
+    });
+
+    it('observeChanges shoul NOT be the same - returns true', () => {
+        const data = [
+            // example of different data (true)
+            {
+                pervious: { test: 1 },
+                current: {},
+            },
+            {
+                pervious: [{}],
+                current: [],
+            },
+            {
+                pervious: 'a',
+                current: 'b',
+            },
+            {
+                pervious: 1,
+                current: '1',
+            },
+            {
+                pervious: { test: 1 },
+                current: { test: 2 },
+            },
+            {
+                pervious: { test: { test: 1 } },
+                current: { test: { test: 2 } },
+            },
+            {
+                pervious: { test: { test: [1, 2, 3] } },
+                current: { test: { test: [1, 1, 3] } },
+            },
+            {
+                pervious: { test: { test: [1, { test: 1 }, 3] } },
+                current: { test: { test: [1, { test: 2 }, 3] } },
+            },
+            {
+                pervious: { test: { test: [1, { test: 1 }, { test: 3, test1: { test: 3 } }] } },
+                current: { test: { test: [1, { test: 1 }, { test: 3, test1: { test: 1 } }] } },
+            },
+        ];
+
+        data.forEach((item) => {
+            expect(reducerUtils.observeChanges(
+                item.pervious, item.current,
+            )).toMatchSnapshot();
+        });
+    });
+});