add tests for tabContentState and create tabUtilTest

test/unit/app/common/state/tabContentStateTest.js

@@ -429,6 +429,18 @@ describe('tabContentState unit tests', function () {
       })
       assert.equal(tabContentState.hasFixedCloseIcon(), false)
     })
+
+    it('frame is active and breakpoint is dynamic', function () {
+      getFrameByKeyMock = sinon.stub(frameStateUtil, 'getFrameByKey', () => {
+        return Immutable.fromJS({
+          breakpoint: 'dynamic'
+        })
+      })
+      isFrameKeyActive = sinon.stub(frameStateUtil, 'isFrameKeyActive', () => {
+        return true
+      })
+      assert.equal(tabContentState.hasFixedCloseIcon(), false)
+    })
   })
 
   describe('hasRelativeCloseIcon', function () {
@@ -461,6 +473,16 @@ describe('tabContentState unit tests', function () {
       })
       assert.equal(tabContentState.hasRelativeCloseIcon(state, frameKey), true)
     })
+
+    it('if hovering (tabIndex === hoverTabIndex) and break point is dynamic', function () {
+      const state = defaultWindowStore
+      getFrameByKeyMock = sinon.stub(frameStateUtil, 'getFrameByKey', () => {
+        return Immutable.fromJS({
+          breakpoint: 'dynamic'
+        })
+      })
+      assert.equal(tabContentState.hasRelativeCloseIcon(state, frameKey), true)
+    })
   })
 
   describe('hasVisibleSecondaryIcon', function () {

test/unit/lib/tabUtilTest.js

@@ -0,0 +1,49 @@
+/* global describe, it */
+const tabUtil = require('../../../app/renderer/lib/tabUtil')
+const tabBreakpoint = require('../../../app/renderer/components/styles/global').breakpoint.tab
+const assert = require('assert')
+
+require('../braveUnit')
+
+describe('tabUtil', function () {
+  describe('getTabBreakpoint', function () {
+    let size
+
+    it('returns `dynamic` if `dynamic` size matches', function () {
+      size = Number.parseInt(tabBreakpoint.dynamic, 10)
+      assert.equal(tabUtil.getTabBreakpoint(size), 'dynamic')
+    })
+    it('returns `default` if `default` size matches', function () {
+      size = Number.parseInt(tabBreakpoint.default, 10)
+      assert.equal(tabUtil.getTabBreakpoint(size), 'default')
+    })
+    it('returns `large` if `large` size matches', function () {
+      size = Number.parseInt(tabBreakpoint.large, 10)
+      assert.equal(tabUtil.getTabBreakpoint(size), 'large')
+    })
+    it('returns `largeMedium` if `largeMedium` size matches', function () {
+      size = Number.parseInt(tabBreakpoint.largeMedium, 10)
+      assert.equal(tabUtil.getTabBreakpoint(size), 'largeMedium')
+    })
+    it('returns `medium` if `medium` size matches', function () {
+      size = Number.parseInt(tabBreakpoint.medium, 10)
+      assert.equal(tabUtil.getTabBreakpoint(size), 'medium')
+    })
+    it('returns `mediumSmall` if `mediumSmall` size matches', function () {
+      size = Number.parseInt(tabBreakpoint.mediumSmall, 10)
+      assert.equal(tabUtil.getTabBreakpoint(size), 'mediumSmall')
+    })
+    it('returns `small` if `small` size matches', function () {
+      size = Number.parseInt(tabBreakpoint.small, 10)
+      assert.equal(tabUtil.getTabBreakpoint(size), 'small')
+    })
+    it('returns `extraSmall` if `extraSmall` size matches', function () {
+      size = Number.parseInt(tabBreakpoint.extraSmall, 10)
+      assert.equal(tabUtil.getTabBreakpoint(size), 'extraSmall')
+    })
+    it('returns `smallest` if `smallest` size matches', function () {
+      size = Number.parseInt(tabBreakpoint.smallest, 10)
+      assert.equal(tabUtil.getTabBreakpoint(size), 'smallest')
+    })
+  })
+})