1 files changed, 42 insertions, 0 deletions
diff --git a/date-fns/src/isPast/test.ts b/date-fns/src/isPast/test.ts
new file mode 100644
index 0000000..eb3a947
--- /dev/null
+++ b/date-fns/src/isPast/test.ts
@@ -0,0 +1,42 @@
+// @flow
+/* eslint-env mocha */
+
+import assert from 'assert'
+import sinon from 'sinon'
+import isPast from '.'
+
+describe('isPast', () => {
+  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 is in the past', () => {
+    const result = isPast(new Date(2014, 6 /* Jul */, 2))
+    assert(result === true)
+  })
+
+  it('returns false if the given date is in the future', () => {
+    const result = isPast(new Date(2014, 11 /* Dec */, 31))
+    assert(result === false)
+  })
+
+  it('returns false if the given date is now', () => {
+    const result = isPast(new Date(2014, 8 /* Sep */, 25))
+    assert(result === false)
+  })
+
+  it('accepts a timestamp', () => {
+    const result = isPast(new Date(2014, 6 /* Jul */, 2).getTime())
+    assert(result === true)
+  })
+
+  it('throws TypeError exception if passed less than 1 argument', () => {
+    // @ts-expect-error
+    assert.throws(isPast.bind(null), TypeError)
+  })
+})