From 1eaf4a8f9dcfb06af4f5baa57b296a65a10f5601 Mon Sep 17 00:00:00 2001
From: YUKI Kaoru <yuki@yagni.jp>
Date: Tue, 31 Dec 2019 06:52:50 +0900
Subject: [PATCH] add not expression

---
 csrestructuredquery/query.py | 4 ++++
 tests/test_query.py          | 7 ++++++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/csrestructuredquery/query.py b/csrestructuredquery/query.py
index 2837ae8..3f91155 100644
--- a/csrestructuredquery/query.py
+++ b/csrestructuredquery/query.py
@@ -59,3 +59,7 @@ class And(LogicalExpression):
 
 class Or(LogicalExpression):
     name = "or"
+
+
+class Not(LogicalExpression):
+    name = "not"
diff --git a/tests/test_query.py b/tests/test_query.py
index d2336a6..1b970d4 100644
--- a/tests/test_query.py
+++ b/tests/test_query.py
@@ -1,6 +1,6 @@
 from datetime import datetime
 
-from csrestructuredquery.query import Query, And, Or
+from csrestructuredquery.query import Query, And, Or, Not
 
 
 def test_文字列型と日時型は引用符で括られる():
@@ -16,3 +16,8 @@ def test_AND論理演算子():
 def test_OR論理演算子():
     expr = Or(("foo", "hoge"), ("bar", 123))
     assert expr.query() == "(or foo:'hoge' bar:123)"
+
+
+def test_NOT論理演算子():
+    expr = Not(("foo", "hoge"), ("bar", 123))
+    assert expr.query() == "(not foo:'hoge' bar:123)"