From 328898582267d963d79eb871300a7f4d5f5e5959 Mon Sep 17 00:00:00 2001
From: Nick Pope <nick.pope@flightdataservices.com>
Date: Thu, 16 Aug 2018 00:45:11 +0100
Subject: Reorganized text db function tests.

---
 tests/db_functions/text/test_replace.py | 55 +++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 tests/db_functions/text/test_replace.py

(limited to 'tests/db_functions/text/test_replace.py')

diff --git a/tests/db_functions/text/test_replace.py b/tests/db_functions/text/test_replace.py
new file mode 100644
index 0000000000..ae87781b8c
--- /dev/null
+++ b/tests/db_functions/text/test_replace.py
@@ -0,0 +1,55 @@
+from django.db.models import F, Value
+from django.db.models.functions import Concat, Replace
+from django.test import TestCase
+
+from ..models import Author
+
+
+class ReplaceTests(TestCase):
+
+    @classmethod
+    def setUpTestData(cls):
+        Author.objects.create(name='George R. R. Martin')
+        Author.objects.create(name='J. R. R. Tolkien')
+
+    def test_replace_with_empty_string(self):
+        qs = Author.objects.annotate(
+            without_middlename=Replace(F('name'), Value('R. R. '), Value('')),
+        )
+        self.assertQuerysetEqual(qs, [
+            ('George R. R. Martin', 'George Martin'),
+            ('J. R. R. Tolkien', 'J. Tolkien'),
+        ], transform=lambda x: (x.name, x.without_middlename), ordered=False)
+
+    def test_case_sensitive(self):
+        qs = Author.objects.annotate(same_name=Replace(F('name'), Value('r. r.'), Value('')))
+        self.assertQuerysetEqual(qs, [
+            ('George R. R. Martin', 'George R. R. Martin'),
+            ('J. R. R. Tolkien', 'J. R. R. Tolkien'),
+        ], transform=lambda x: (x.name, x.same_name), ordered=False)
+
+    def test_replace_expression(self):
+        qs = Author.objects.annotate(same_name=Replace(
+            Concat(Value('Author: '), F('name')), Value('Author: '), Value('')),
+        )
+        self.assertQuerysetEqual(qs, [
+            ('George R. R. Martin', 'George R. R. Martin'),
+            ('J. R. R. Tolkien', 'J. R. R. Tolkien'),
+        ], transform=lambda x: (x.name, x.same_name), ordered=False)
+
+    def test_update(self):
+        Author.objects.update(
+            name=Replace(F('name'), Value('R. R. '), Value('')),
+        )
+        self.assertQuerysetEqual(Author.objects.all(), [
+            ('George Martin'),
+            ('J. Tolkien'),
+        ], transform=lambda x: x.name, ordered=False)
+
+    def test_replace_with_default_arg(self):
+        # The default replacement is an empty string.
+        qs = Author.objects.annotate(same_name=Replace(F('name'), Value('R. R. ')))
+        self.assertQuerysetEqual(qs, [
+            ('George R. R. Martin', 'George Martin'),
+            ('J. R. R. Tolkien', 'J. Tolkien'),
+        ], transform=lambda x: (x.name, x.same_name), ordered=False)
-- 
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