From 42532ec880c23e2dac548591d273fc87bedd2b0a Mon Sep 17 00:00:00 2001
From: Randy Barlow <rbarlow@redhat.com>
Date: Tue, 1 Mar 2016 19:05:47 -0500
Subject: [PATCH] Support did yesterday.

fixes #79
---
 did/base.py        | 5 +++++
 tests/test_base.py | 6 ++++++
 2 files changed, 11 insertions(+)

diff --git a/did/base.py b/did/base.py
index 3eda4739..66376cf2 100644
--- a/did/base.py
+++ b/did/base.py
@@ -273,6 +273,11 @@ def period(argument):
             until = Date("today")
             until.date += delta(days=1)
             period = "today"
+        elif "yesterday" in argument:
+            since = Date("yesterday")
+            until = Date("yesterday")
+            until.date += delta(days=1)
+            period = "yesterday"
         elif "year" in argument:
             if "last" in argument:
                 since, until = Date.last_year()
diff --git a/tests/test_base.py b/tests/test_base.py
index 69e71ef2..1e5e21ad 100644
--- a/tests/test_base.py
+++ b/tests/test_base.py
@@ -53,6 +53,12 @@ def test_Date_period():
     from did.base import Date
     today = did.base.TODAY
     did.base.TODAY = datetime.date(2015, 10, 3)
+    # yesterday
+    for argument in ["yesterday"]:
+        since, until, period = Date.period(argument)
+        assert unicode(since) == "2015-10-02"
+        assert unicode(until) == "2015-10-03"
+        assert period == "yesterday"
     # This week
     for argument in ["", "week", "this week"]:
         since, until, period = Date.period(argument)