8 files changed, 94 insertions, 6 deletions
diff --git a/test/shared/commands/parsers.test.js b/test/shared/commands/parsers.test.js
index 0a1960c..1910f07 100644
--- a/test/shared/commands/parsers.test.js
+++ b/test/shared/commands/parsers.test.js
@@ -1,4 +1,3 @@
-import { expect } from "chai";
 import * as parsers from 'shared/commands/parsers';
 
 describe("shared/commands/parsers", () => {
diff --git a/test/shared/settings/validator.test.js b/test/shared/settings/validator.test.js
index 61d976a..9bbfa3e 100644
--- a/test/shared/settings/validator.test.js
+++ b/test/shared/settings/validator.test.js
@@ -1,4 +1,3 @@
-import { expect } from "chai";
 import { validate } from 'shared/settings/validator';
 
 describe("setting validator", () => {
diff --git a/test/shared/settings/values.test.js b/test/shared/settings/values.test.js
index 62cfb5f..c72824d 100644
--- a/test/shared/settings/values.test.js
+++ b/test/shared/settings/values.test.js
@@ -1,4 +1,3 @@
-import { expect } from 'chai';
 import * as values from 'shared/settings/values';
 
 describe("settings values", () => {
diff --git a/test/shared/store/index.test.js b/test/shared/store/index.test.js
index 133033b..5b69b40 100644
--- a/test/shared/store/index.test.js
+++ b/test/shared/store/index.test.js
@@ -1,4 +1,3 @@
-import { expect } from "chai";
 import { createStore } from 'shared/store';
 
 describe("Store class", () => {
diff --git a/test/shared/utils/keys.test.js b/test/shared/utils/keys.test.js
index 5ca8b54..770b530 100644
--- a/test/shared/utils/keys.test.js
+++ b/test/shared/utils/keys.test.js
@@ -1,4 +1,3 @@
-import { expect } from 'chai';
 import * as keys from 'shared/utils/keys';
 
 describe("keys util", () => {
diff --git a/test/shared/utils/re.test.js b/test/shared/utils/re.test.js
index 9ed6521..d12ceb7 100644
--- a/test/shared/utils/re.test.js
+++ b/test/shared/utils/re.test.js
@@ -1,4 +1,3 @@
-import { expect } from 'chai';
 import * as re from 'shared/utils/re';
 
 describe("re util", () => {
diff --git a/test/shared/versions/index.test.js b/test/shared/versions/index.test.js
new file mode 100644
index 0000000..3bb307a
--- /dev/null
+++ b/test/shared/versions/index.test.js
@@ -0,0 +1,55 @@
+import * as versions from 'shared/versions';
+import manifest from '../../../manifest.json';
+
+describe("shared/versions/storage", () => {
+  describe('#checkUpdated', () => {
+    beforeEach(() => {
+      return browser.storage.local.remove('version');
+    });
+
+    it('return true if no previous versions', () => {
+      return Promise.resolve().then(() => {
+        return versions.checkUpdated();
+      }).then((updated) => {
+        expect(updated).to.be.true;
+      });
+    });
+
+    it('return true if updated', () => {
+      return Promise.resolve().then(() => {
+        return browser.storage.local.set({ version: '0.001' });
+      }).then(() => {
+        return versions.checkUpdated();
+      }).then((updated) => {
+        expect(updated).to.be.true;
+      });
+    });
+
+    it('return false if not updated', () => {
+      return Promise.resolve().then(() => {
+        return browser.storage.local.set({ version: manifest.version });
+      }).then(() => {
+        return versions.checkUpdated();
+      }).then((updated) => {
+        expect(updated).to.be.false;
+      });
+    });
+  });
+
+  describe('#commit', () => {
+    beforeEach(() => {
+      return browser.storage.local.remove('version');
+    });
+
+    it('saves current version from manifest.json', () => {
+      return Promise.resolve().then(() => {
+        return versions.commit();
+      }).then(() => {
+        return browser.storage.local.get('version');
+      }).then(({version}) => {
+        expect(version).to.be.a('string');
+        expect(version).to.equal(manifest.version);
+      });
+    });
+  });
+});
diff --git a/test/shared/versions/storage.test.js b/test/shared/versions/storage.test.js
new file mode 100644
index 0000000..bcfa259
--- /dev/null
+++ b/test/shared/versions/storage.test.js
@@ -0,0 +1,39 @@
+import * as storage from 'shared/versions/storage';
+
+describe("shared/versions/storage", () => {
+  describe('#load', () => {
+    beforeEach(() => {
+      return browser.storage.local.remove('version');
+    });
+
+    it('loads saved version', () => {
+      return Promise.resolve().then(() => {
+        return browser.storage.local.set({ version: '1.2.3' });
+      }).then(() => {
+        return storage.load();
+      }).then((version) => {
+        expect(version).to.equal('1.2.3');
+      });
+    });
+
+    it('returns undefined if no versions in storage', () => {
+      return Promise.resolve().then(() => {
+        return storage.load();
+      }).then((version) => {
+        expect(version).to.be.a('undefined');
+      });
+    });
+  });
+
+  describe('#save', () => {
+    it('saves version string', () => {
+      return Promise.resolve().then(() => {
+        return storage.save('2.3.4');
+      }).then(() => {
+        return browser.storage.local.get('version');
+      }).then(({version}) => {
+        expect(version).to.equal('2.3.4');
+      });
+    });
+  });
+});