test(db): Add tests for inserts into target_credential_library

internal/db/sqltest/tests/target/target_credential_library.sql

@@ -0,0 +1,44 @@
+begin;
+  select plan(3);
+  select wtt_load('widgets', 'iam', 'kms', 'auth', 'hosts', 'targets', 'credentials');
+
+  -- validate the setup data
+  select is(count(*), 1::bigint)
+    from credential_library cl
+    join credential_store cs on cl.store_id = cs.public_id
+   where cs.scope_id  = 'p____bwidget'
+     and cs.public_id = 'vs_______wvs'
+     and cl.public_id = 'vl______wvl1';
+
+  insert into target
+    (scope_id, public_id)
+  values
+    ('p____bwidget', 'test______wb');
+
+  prepare insert_valid_target_credential_library as
+    insert into target_credential_library
+      (target_id, credential_library_id, credential_purpose)
+    values
+      ('test______wb', 'vl______wvl1', 'application');
+  select lives_ok('insert_valid_target_credential_library', 'insert valid target_credential_library failed');
+
+  -- create a credential_store and credential_library in a different project
+  insert into credential_store
+    (scope_id, public_id)
+  values
+    ('p____swidget', 'test______cs');
+
+  insert into credential_library
+    (store_id, public_id, credential_type)
+  values
+    ('test______cs', 'test______cl', 'unspecified');
+
+  prepare insert_invalid_target_credential_library as
+    insert into target_credential_library
+      (target_id, credential_library_id, credential_purpose)
+    values
+      ('test______wb', 'test______cl', 'application');
+  select throws_ok('insert_invalid_target_credential_library', '23000', null, 'insert invalid target_credential_library succeeded');
+
+  select * from finish();
+rollback;