Add some tests for the ON DELETE CASCADE behavior.

[dead/htsn-import.git] / src / TSN / XML / Injuries.hs

diff --git a/src/TSN/XML/Injuries.hs b/src/TSN/XML/Injuries.hs
index eb369e03eb8d1ecae646a383a4d0a95e9e2b8659..81243e44f20f8edd0dbd0f77a46c992379b2132f 100644 (file)
--- a/src/TSN/XML/Injuries.hs
+++ b/src/TSN/XML/Injuries.hs
@@ -29,11 +29,18 @@ where
 import Data.Data ( Data )
 import Data.Time ( UTCTime )
 import Data.Typeable ( Typeable )
-import Database.Groundhog ( migrate )
+import Database.Groundhog (
+  countAll,
+  executeRaw,
+  migrate,
+  runMigration,
+  silentMigrationLogger )
 import Database.Groundhog.Core ( DefaultKey )
+import Database.Groundhog.Generic ( runDbConn )
 import Database.Groundhog.TH (
   groundhog,
   mkPersist )
+import Database.Groundhog.Sqlite ( withSqliteConn )
 import Data.Tuple.Curry ( uncurryN )
 import Test.Tasty ( TestTree, testGroup )
 import Test.Tasty.HUnit ( (@?=), testCase )
@@ -61,7 +68,8 @@ import Xml (
   FromXmlFk(..),
   ToDb(..),
   pickle_unpickle,
-  unpickleable )
+  unpickleable,
+  unsafe_unpickle )
 
 
 --
@@ -288,7 +296,8 @@ injuries_tests :: TestTree
 injuries_tests =
   testGroup
     "Injuries tests"
-    [ test_pickle_of_unpickle_is_identity,
+    [ test_on_delete_cascade,
+      test_pickle_of_unpickle_is_identity,
       test_unpickle_succeeds ]
 
 
@@ -309,7 +318,31 @@ test_pickle_of_unpickle_is_identity =
 test_unpickle_succeeds :: TestTree
 test_unpickle_succeeds =
   testCase "unpickling succeeds" $ do
-  let path = "test/xml/injuriesxml.xml"
-  actual <- unpickleable path pickle_message
-  let expected = True
-  actual @?= expected
+    let path = "test/xml/injuriesxml.xml"
+    actual <- unpickleable path pickle_message
+    let expected = True
+    actual @?= expected
+
+
+-- | Make sure everything gets deleted when we delete the top-level
+--   record.
+--
+test_on_delete_cascade :: TestTree
+test_on_delete_cascade =
+  testCase "deleting an injuries deletes its children" $ do
+    let path = "test/xml/injuriesxml.xml"
+    inj <- unsafe_unpickle path pickle_message
+    let a = undefined :: Injuries
+    let b = undefined :: InjuriesListing
+    actual <- withSqliteConn ":memory:" $ runDbConn $ do
+                runMigration silentMigrationLogger $ do
+                  migrate a
+                  migrate b
+                _ <- dbimport inj
+                -- No idea how 'delete' works, so do this instead.
+                executeRaw False "DELETE FROM injuries;" []
+                count_a <- countAll a
+                count_b <- countAll b
+                return $ count_a + count_b
+    let expected = 0
+    actual @?= expected