1 files changed, 51 insertions, 0 deletions
diff --git a/date-fns/src/isSameQuarter/test.ts b/date-fns/src/isSameQuarter/test.ts
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+++ b/date-fns/src/isSameQuarter/test.ts
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+// @flow
+/* eslint-env mocha */
+
+import assert from 'power-assert'
+import isSameQuarter from '.'
+
+describe('isSameQuarter', function() {
+  it('returns true if the given dates have the same quarter (and year)', function() {
+    const result = isSameQuarter(
+      new Date(2014, 0 /* Jan */, 1),
+      new Date(2014, 2 /* Mar */, 8)
+    )
+    assert(result === true)
+  })
+
+  it('returns false if the given dates have different quarters', function() {
+    const result = isSameQuarter(
+      new Date(2014, 0 /* Jan */, 1),
+      new Date(2013, 8 /* Sep */, 25)
+    )
+    assert(result === false)
+  })
+
+  it('accepts a timestamp', function() {
+    const result = isSameQuarter(
+      new Date(2014, 6 /* Jul */, 2).getTime(),
+      new Date(2014, 8 /* Sep */, 25).getTime()
+    )
+    assert(result === true)
+  })
+
+  it('returns false if the first date is `Invalid Date`', function() {
+    const result = isSameQuarter(new Date(NaN), new Date(1989, 6 /* Jul */, 10))
+    assert(result === false)
+  })
+
+  it('returns false if the second date is `Invalid Date`', function() {
+    const result = isSameQuarter(new Date(1987, 1 /* Feb */, 11), new Date(NaN))
+    assert(result === false)
+  })
+
+  it('returns false if the both dates are `Invalid Date`', function() {
+    const result = isSameQuarter(new Date(NaN), new Date(NaN))
+    assert(result === false)
+  })
+
+  it('throws TypeError exception if passed less than 2 arguments', function() {
+    assert.throws(isSameQuarter.bind(null), TypeError)
+    assert.throws(isSameQuarter.bind(null, 1), TypeError)
+  })
+})