From 270fdbc63afd1e15231258c61d148ddf98001217 Mon Sep 17 00:00:00 2001
From: Jason Killian <jkillian@palantir.com>
Date: Thu, 19 Nov 2015 19:07:06 -0500
Subject: [PATCH] Fix bug where endpoint months could not be shown

---
 src/DayPicker.js  |  4 ++--
 test/DayPicker.js | 19 +++++++++++++++++++
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/src/DayPicker.js b/src/DayPicker.js
index 88bfece435..b2bab22d1a 100644
--- a/src/DayPicker.js
+++ b/src/DayPicker.js
@@ -93,8 +93,8 @@ export default class DayPicker extends Component {
 
   allowMonth(d) {
     const { fromMonth, toMonth }  = this.props;
-    if ((fromMonth && Helpers.getMonthsDiff(fromMonth, d) <= 0) ||
-      (toMonth && Helpers.getMonthsDiff(toMonth, d) >= 0)) {
+    if ((fromMonth && Helpers.getMonthsDiff(fromMonth, d) < 0) ||
+      (toMonth && Helpers.getMonthsDiff(toMonth, d) > 0)) {
       return false;
     }
     return true;
diff --git a/test/DayPicker.js b/test/DayPicker.js
index a98541dfa1..318c6b6404 100644
--- a/test/DayPicker.js
+++ b/test/DayPicker.js
@@ -434,6 +434,25 @@ describe("DayPicker", () => {
       expect(dayPickerEl.state.currentMonth.getFullYear()).to.equal(2015);
     });
 
+    it("can show the first allowed month, `fromMonth`", () => {
+      const dayPickerEl = TestUtils.renderIntoDocument(
+        <DayPicker initialMonth={new Date(2015, 6)} fromMonth={new Date(2015, 4)} />
+      );
+      dayPickerEl.showMonth(new Date(2015, 4));
+
+      expect(dayPickerEl.state.currentMonth.getMonth()).to.equal(4);
+      expect(dayPickerEl.state.currentMonth.getFullYear()).to.equal(2015);
+    });
+
+    it("can show the last allowed month, `toMonth`", () => {
+      const dayPickerEl = TestUtils.renderIntoDocument(
+        <DayPicker initialMonth={new Date(2015, 6)} toMonth={new Date(2015, 8)} />
+      );
+      dayPickerEl.showMonth(new Date(2015, 8));
+
+      expect(dayPickerEl.state.currentMonth.getMonth()).to.equal(8);
+      expect(dayPickerEl.state.currentMonth.getFullYear()).to.equal(2015);
+    });
   });
 
   it("displays a modified state upon changing initialMonth prop", (done) => {