1 files changed, 42 insertions, 0 deletions
diff --git a/date-fns/src/isThisWeek/test.ts b/date-fns/src/isThisWeek/test.ts
new file mode 100644
index 0000000..e6e323d
--- /dev/null
+++ b/date-fns/src/isThisWeek/test.ts
@@ -0,0 +1,42 @@
+// @flow
+/* eslint-env mocha */
+
+import assert from 'assert'
+import sinon from 'sinon'
+import isThisWeek from '.'
+
+describe('isThisWeek', () => {
+  let clock: sinon.SinonFakeTimers
+  beforeEach(() => {
+    clock = sinon.useFakeTimers(new Date(2014, 8 /* Sep */, 25).getTime())
+  })
+
+  afterEach(() => {
+    clock.restore()
+  })
+
+  it('returns true if the given date and the current date have the same week', () => {
+    const date = new Date(2014, 8 /* Sep */, 21)
+    assert(isThisWeek(date) === true)
+  })
+
+  it('returns false if the given date and the current date have different weeks', () => {
+    const date = new Date(2014, 8 /* Sep */, 29)
+    assert(isThisWeek(date) === false)
+  })
+
+  it('allows to specify which day is the first day of the week', () => {
+    const date = new Date(2014, 8 /* Sep */, 28)
+    assert(isThisWeek(date, { weekStartsOn: 1 }) === true)
+  })
+
+  it('accepts a timestamp', () => {
+    const date = new Date(2014, 8 /* Sep */, 21).getTime()
+    assert(isThisWeek(date) === true)
+  })
+
+  it('throws TypeError exception if passed less than 1 argument', function() {
+    // @ts-expect-error
+    assert.throws(isThisWeek.bind(null), TypeError)
+  })
+})