test: move prepared statements config related tests to spec tests

Signed-off-by: Taimoor Zaeem <taimoorzaeem@gmail.com>

postgrest.cabal

@@ -260,6 +260,7 @@ test-suite spec
                       Feature.Query.Preferences.HandlingSpec
                       Feature.Query.Preferences.MaxAffectedSpec
                       Feature.Query.Preferences.TimezoneSpec
+                      Feature.Query.PreparedStatementsSpec
                       Feature.Query.QueryLimitedSpec
                       Feature.Query.QuerySpec
                       Feature.Query.RangeSpec

test/io/__snapshots__/test_cli/test_schema_cache_snapshot[dbRoutines].yaml

@@ -512,23 +512,6 @@
       pdSchema: public
       pdVolatility: Volatile
 
-- - qiName: uses_prepared_statements
-    qiSchema: public
-  - - pdDescription: null
-      pdFuncSettings: []
-      pdHasVariadic: false
-      pdName: uses_prepared_statements
-      pdParams: []
-      pdReturnType:
-        contents:
-          contents:
-            qiName: bool
-            qiSchema: pg_catalog
-          tag: Scalar
-        tag: Single
-      pdSchema: public
-      pdVolatility: Volatile
-
 - - qiName: repeatable_read_isolation_level
     qiSchema: public
   - - pdDescription: null

test/io/fixtures/schema.sql

@@ -54,10 +54,6 @@ create function v1.get_guc_value(name text) returns text as $$
   select nullif(current_setting(name), '')::text;
 $$ language sql;
 
-create function uses_prepared_statements() returns bool as $$
-  select count(name) > 0 from pg_catalog.pg_prepared_statements
-$$ language sql;
-
 create function change_max_rows_config(val int, notify bool default false) returns void as $_$
 begin
   execute format($$

test/io/test_io.py

@@ -420,27 +420,6 @@ def test_notify_do_nothing(defaultenv):
         assert output == []
 
 
-def test_db_prepared_statements_enable(defaultenv):
-    "Should use prepared statements when the setting is enabled."
-
-    with run(env=defaultenv) as postgrest:
-        response = postgrest.session.post("/rpc/uses_prepared_statements")
-        assert response.text == "true"
-
-
-def test_db_prepared_statements_disable(defaultenv):
-    "Should not use any prepared statements when the setting is disabled."
-
-    env = {
-        **defaultenv,
-        "PGRST_DB_PREPARED_STATEMENTS": "false",
-    }
-
-    with run(env=env) as postgrest:
-        response = postgrest.session.post("/rpc/uses_prepared_statements")
-        assert response.text == "false"
-
-
 def test_statement_timeout(defaultenv, metapostgrest):
     "Statement timeout times out slow statements"
 

test/spec/Feature/Query/PreparedStatementsSpec.hs

@@ -0,0 +1,33 @@
+module Feature.Query.PreparedStatementsSpec where
+
+import Network.HTTP.Types
+import Test.Hspec         hiding (pendingWith)
+import Test.Hspec.Wai
+import Text.Heredoc
+
+import PostgREST.Config (AppConfig (..))
+
+import Protolude  hiding (get)
+import SpecHelper
+
+spec :: SpecWithConfig
+spec withConfig = do
+  withConfig baseCfg { configDbPreparedStatements = True } $
+    it "should use prepared statements when the setting is enabled" $
+      request methodPost "/rpc/uses_prepared_statements"
+        [] ""
+        `shouldRespondWith`
+        [str|true|]
+        { matchStatus = 200 }
+
+  withConfig baseCfg { configDbPreparedStatements = False } $
+    it "should not use any prepared statements when the setting is disabled" $ do
+      request methodGet "/never_prepared"
+        [] ""
+        `shouldRespondWith` 200
+
+      request methodPost "/rpc/never_uses_prepared_statements"
+        [] ""
+        `shouldRespondWith`
+        [str|true|]
+        { matchStatus = 200 }

test/spec/Main.hs

@@ -58,6 +58,7 @@ import qualified Feature.Query.PostGISSpec
 import qualified Feature.Query.Preferences.HandlingSpec
 import qualified Feature.Query.Preferences.MaxAffectedSpec
 import qualified Feature.Query.Preferences.TimezoneSpec
+import qualified Feature.Query.PreparedStatementsSpec
 import qualified Feature.Query.QueryLimitedSpec
 import qualified Feature.Query.QuerySpec
 import qualified Feature.Query.RangeSpec
@@ -148,6 +149,7 @@ main = do
         , ("Feature.Query.Preferences.HandlingSpec"            , Feature.Query.Preferences.HandlingSpec.spec)
         , ("Feature.Query.Preferences.MaxAffectedSpec"         , Feature.Query.Preferences.MaxAffectedSpec.spec)
         , ("Feature.Query.Preferences.TimezoneSpec.enabledSpec", Feature.Query.Preferences.TimezoneSpec.enabledSpec)
+        , ("Feature.Query.PreparedStatementsSpec.spec"         , Feature.Query.PreparedStatementsSpec.spec)
         , ("Feature.Query.QueryLimitedSpec"                    , Feature.Query.QueryLimitedSpec.spec)
         , ("Feature.Query.QuerySpec"                           , Feature.Query.QuerySpec.spec actualPgVersion)
         , ("Feature.Query.RangeSpec"                           , Feature.Query.RangeSpec.spec)

test/spec/fixtures/schema.sql

@@ -3881,3 +3881,14 @@ $$ language plpgsql;
 create or replace function "true"() returns boolean as $_$
   select true;
 $_$ language sql;
+
+create function uses_prepared_statements() returns bool as $$
+  select count(*) > 0 from pg_catalog.pg_prepared_statements;
+$$ language sql;
+
+create table never_prepared (id int);
+
+create function never_uses_prepared_statements() returns bool as $$
+  select count(*) = 0 from pg_catalog.pg_prepared_statements
+  where statement ilike '%never_prepared%';
+$$ language sql;