1 files changed, 37 insertions, 0 deletions
diff --git a/date-fns/src/isThisQuarter/test.ts b/date-fns/src/isThisQuarter/test.ts
new file mode 100644
index 0000000..1a4b77f
--- /dev/null
+++ b/date-fns/src/isThisQuarter/test.ts
@@ -0,0 +1,37 @@
+// @flow
+/* eslint-env mocha */
+
+import assert from 'assert'
+import sinon from 'sinon'
+import isThisQuarter from '.'
+
+describe('isThisQuarter', function() {
+  let clock: sinon.SinonFakeTimers
+  beforeEach(function() {
+    clock = sinon.useFakeTimers(new Date(2014, 8 /* Sep */, 25).getTime())
+  })
+
+  afterEach(function() {
+    clock.restore()
+  })
+
+  it('returns true if the given date and the current date have the same quarter (and year)', function() {
+    const date = new Date(2014, 6 /* Jul */, 2)
+    assert(isThisQuarter(date) === true)
+  })
+
+  it('returns false if the given date and the current date have different quarters', function() {
+    const date = new Date(2014, 1 /* Feb */, 11)
+    assert(isThisQuarter(date) === false)
+  })
+
+  it('accepts a timestamp', function() {
+    const date = new Date(2014, 6 /* Jul */, 2).getTime()
+    assert(isThisQuarter(date) === true)
+  })
+
+  it('throws TypeError exception if passed less than 1 argument', function() {
+    // @ts-expect-error
+    assert.throws(isThisQuarter.bind(null), TypeError)
+  })
+})