add test_incorrect_dbm

sphinxcontrib/datatemplates/directive.py

@@ -1,5 +1,6 @@
 import codecs
 import csv
+import dbm
 import json
 import mimetypes
 from collections import defaultdict
@@ -214,7 +215,11 @@ def run(self):
                 nodes.literal_block(self.block_text, self.block_text),
                 line=self.lineno)
             return [error]
-        except (json.decoder.JSONDecodeError, ET.ParseError) as err:
+        except (
+            json.decoder.JSONDecodeError,
+            ET.ParseError,
+            dbm.error[0],
+        ) as err:
             error = self.state_machine.reporter.error(
                 f"Error in source file '{relative_resolved_path}': {err}",
                 nodes.literal_block(self.block_text, self.block_text),

tests/test_errors.py

@@ -112,3 +112,14 @@ def test_incorrect_import_module(app: SphinxTestApp, warning: StringIO):
         "ERROR: Source module 'some_module' not found"
     )
     assert expected_error_str in warning.getvalue()
+
+
+@pytest.mark.sphinx("html", testroot="incorrect-dbm")
+def test_incorrect_dbm(app: SphinxTestApp, warning: StringIO):
+    app.builder.build_all()
+    expected_error_str = (
+        f"{app.srcdir / 'index.rst'}:1: "
+        "ERROR: Error in source file 'sampledbm': "
+        "db type could not be determined"
+    )
+    assert expected_error_str in warning.getvalue()

tests/testdata/test-incorrect-dbm/conf.py

@@ -0,0 +1,2 @@
+extensions = ["sphinxcontrib.datatemplates"]
+templates_path = ["templates"]

tests/testdata/test-incorrect-dbm/index.rst

@@ -0,0 +1,2 @@
+.. datatemplate:dbm:: sampledbm
+    :template: sample.tmpl

tests/testdata/test-incorrect-dbm/sampledbm

@@ -0,0 +1 @@
+sample text

tests/testdata/test-incorrect-dbm/templates/sample.tmpl

@@ -0,0 +1 @@
+{{data}}