Replace `assert !` with `assert_not`

This autocorrects the violations after adding a custom cop in
3305c78dcd.

3 files changed, 7 insertions, 7 deletions

diff --git a/activesupport/test/cache/cache_store_namespace_test.rb b/activesupport/test/cache/cache_store_namespace_test.rb
index b52a61c500..dfdb3262f2 100644
--- a/activesupport/test/cache/cache_store_namespace_test.rb
+++ b/activesupport/test/cache/cache_store_namespace_test.rb
@@ -25,7 +25,7 @@ class CacheStoreNamespaceTest < ActiveSupport::TestCase
     cache.write("foo", "bar")
     cache.write("fu", "baz")
     cache.delete_matched(/^fo/)
-    assert !cache.exist?("foo")
+    assert_not cache.exist?("foo")
     assert cache.exist?("fu")
   end
 
@@ -34,7 +34,7 @@ class CacheStoreNamespaceTest < ActiveSupport::TestCase
     cache.write("foo", "bar")
     cache.write("fu", "baz")
     cache.delete_matched(/OO/i)
-    assert !cache.exist?("foo")
+    assert_not cache.exist?("foo")
     assert cache.exist?("fu")
   end
 end
diff --git a/activesupport/test/cache/stores/memory_store_test.rb b/activesupport/test/cache/stores/memory_store_test.rb
index 8fe8384fb0..340fb517cb 100644
--- a/activesupport/test/cache/stores/memory_store_test.rb
+++ b/activesupport/test/cache/stores/memory_store_test.rb
@@ -104,7 +104,7 @@ class MemoryStorePruningTest < ActiveSupport::TestCase
     assert @cache.exist?(4)
     assert @cache.exist?(3)
     assert @cache.exist?(2)
-    assert !@cache.exist?(1)
+    assert_not @cache.exist?(1)
   end
 
   def test_write_with_unless_exist
diff --git a/activesupport/test/cache/stores/redis_cache_store_test.rb b/activesupport/test/cache/stores/redis_cache_store_test.rb
index 3cae2bb11f..24c4c5c481 100644
--- a/activesupport/test/cache/stores/redis_cache_store_test.rb
+++ b/activesupport/test/cache/stores/redis_cache_store_test.rb
@@ -211,7 +211,7 @@ module ActiveSupport::Cache::RedisCacheStoreTests
       @cache.write("foo", "bar")
       @cache.write("fu", "baz")
       @cache.delete_matched("foo*")
-      assert !@cache.exist?("foo")
+      assert_not @cache.exist?("foo")
       assert @cache.exist?("fu")
     end
 
@@ -227,15 +227,15 @@ module ActiveSupport::Cache::RedisCacheStoreTests
       @cache.write("foo", "bar")
       @cache.write("fu", "baz")
       @cache.clear
-      assert !@cache.exist?("foo")
-      assert !@cache.exist?("fu")
+      assert_not @cache.exist?("foo")
+      assert_not @cache.exist?("fu")
     end
 
     test "only clear namespace cache key" do
       @cache.write("foo", "bar")
       @cache.redis.set("fu", "baz")
       @cache.clear
-      assert !@cache.exist?("foo")
+      assert_not @cache.exist?("foo")
       assert @cache.redis.exists("fu")
     end
   end