add test_incorrect_import_module

sphinxcontrib/datatemplates/directive.py

@@ -208,6 +208,12 @@ def run(self):
                 nodes.literal_block(self.block_text, self.block_text),
                 line=self.lineno)
             return [error]
+        except ModuleNotFoundError:
+            error = self.state_machine.reporter.error(
+                f"Source module '{relative_resolved_path}' not found",
+                nodes.literal_block(self.block_text, self.block_text),
+                line=self.lineno)
+            return [error]
         except (json.decoder.JSONDecodeError, ET.ParseError) as err:
             error = self.state_machine.reporter.error(
                 f"Error in source file '{relative_resolved_path}': {err}",

tests/test_errors.py

@@ -102,3 +102,13 @@ def test_incorrect_xml_syntax(app: SphinxTestApp, warning: StringIO):
         "not well-formed (invalid token): line 2, column 4"
     )
     assert expected_error_str in warning.getvalue()
+
+
+@pytest.mark.sphinx("html", testroot="incorrect-import-module")
+def test_incorrect_import_module(app: SphinxTestApp, warning: StringIO):
+    app.builder.build_all()
+    expected_error_str = (
+        f"{app.srcdir / 'index.rst'}:1: "
+        "ERROR: Source module 'some_module' not found"
+    )
+    assert expected_error_str in warning.getvalue()

tests/testdata/test-incorrect-import-module/conf.py

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

tests/testdata/test-incorrect-import-module/index.rst

@@ -0,0 +1,2 @@
+.. datatemplate:import-module:: some_module
+    :template: sample.tmpl

tests/testdata/test-incorrect-import-module/templates/sample.tmpl

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