[Backport 1.9.latest] Fix yaml snapshot specification with data tests

.changes/unreleased/Fixes-20241216-134645.yaml

@@ -0,0 +1,6 @@
+kind: Fixes
+body: Error writing generic test at run time
+time: 2024-12-16T13:46:45.936573-05:00
+custom:
+  Author: gshank
+  Issue: "11110"

core/dbt/parser/schemas.py

@@ -1,4 +1,5 @@
 import datetime
+import pathlib
 import time
 from abc import ABCMeta, abstractmethod
 from dataclasses import dataclass, field
@@ -289,9 +290,15 @@
                 parser = SnapshotParser(self.project, self.manifest, self.root_project)
                 fqn = parser.get_fqn_prefix(block.path.relative_path)
                 fqn.append(snapshot["name"])
+
+                compiled_path = str(
+                    pathlib.PurePath("").joinpath(
+                        block.path.relative_path, snapshot["name"] + ".sql"
+                    )
+                )
                 snapshot_node = parser._create_parsetime_node(
                     block,
-                    self.get_compiled_path(block),
+                    compiled_path,
                     parser.initial_config(fqn),
                     fqn,
                     snapshot["name"],

tests/functional/snapshots/fixtures.py

@@ -301,6 +301,10 @@
       updated_at: updated_at
       meta:
         owner: 'a_owner'
+    columns:
+      - name: id
+        data_tests:
+          - not_null
 """
 
 snapshots_pg__snapshot_mod_yml = """
@@ -313,6 +317,10 @@
       updated_at: updated_at
       meta:
         owner: 'b_owner'
+    columns:
+      - name: id
+        data_tests:
+          - not_null
 """
 
 snapshots_pg__snapshot_no_target_schema_sql = """