`supports_extensions?` return always true since PostgreSQL 9.1

since the minimum version of PostgreSQL currently Rails supports is 9.1,
there is no need to handle if `supports_extensions?`

Refer https://www.postgresql.org/docs/9.1/static/sql-createextension.html
"CREATE EXTENSION"

1 files changed, 23 insertions, 25 deletions

diff --git a/activerecord/test/cases/schema_dumper_test.rb b/activerecord/test/cases/schema_dumper_test.rb
index 799a65c61e..60e3bc17f2 100644
--- a/activerecord/test/cases/schema_dumper_test.rb
+++ b/activerecord/test/cases/schema_dumper_test.rb
@@ -294,34 +294,32 @@ class SchemaDumperTest < ActiveRecord::TestCase
       assert_match %r{t\.oid\s+"obj_id"$}, output
     end
 
-    if ActiveRecord::Base.connection.supports_extensions?
-      def test_schema_dump_includes_extensions
-        connection = ActiveRecord::Base.connection
-
-        connection.stubs(:extensions).returns(["hstore"])
-        output = perform_schema_dump
-        assert_match "# These are extensions that must be enabled", output
-        assert_match %r{enable_extension "hstore"}, output
-
-        connection.stubs(:extensions).returns([])
-        output = perform_schema_dump
-        assert_no_match "# These are extensions that must be enabled", output
-        assert_no_match %r{enable_extension}, output
-      end
+    def test_schema_dump_includes_extensions
+      connection = ActiveRecord::Base.connection
+
+      connection.stubs(:extensions).returns(["hstore"])
+      output = perform_schema_dump
+      assert_match "# These are extensions that must be enabled", output
+      assert_match %r{enable_extension "hstore"}, output
+
+      connection.stubs(:extensions).returns([])
+      output = perform_schema_dump
+      assert_no_match "# These are extensions that must be enabled", output
+      assert_no_match %r{enable_extension}, output
+    end
 
-      def test_schema_dump_includes_extensions_in_alphabetic_order
-        connection = ActiveRecord::Base.connection
+    def test_schema_dump_includes_extensions_in_alphabetic_order
+      connection = ActiveRecord::Base.connection
 
-        connection.stubs(:extensions).returns(["hstore", "uuid-ossp", "xml2"])
-        output = perform_schema_dump
-        enabled_extensions = output.scan(%r{enable_extension "(.+)"}).flatten
-        assert_equal ["hstore", "uuid-ossp", "xml2"], enabled_extensions
+      connection.stubs(:extensions).returns(["hstore", "uuid-ossp", "xml2"])
+      output = perform_schema_dump
+      enabled_extensions = output.scan(%r{enable_extension "(.+)"}).flatten
+      assert_equal ["hstore", "uuid-ossp", "xml2"], enabled_extensions
 
-        connection.stubs(:extensions).returns(["uuid-ossp", "xml2", "hstore"])
-        output = perform_schema_dump
-        enabled_extensions = output.scan(%r{enable_extension "(.+)"}).flatten
-        assert_equal ["hstore", "uuid-ossp", "xml2"], enabled_extensions
-      end
+      connection.stubs(:extensions).returns(["uuid-ossp", "xml2", "hstore"])
+      output = perform_schema_dump
+      enabled_extensions = output.scan(%r{enable_extension "(.+)"}).flatten
+      assert_equal ["hstore", "uuid-ossp", "xml2"], enabled_extensions
     end
   end