Fix datetime bug to aviud time_subset without hours cutting to hour 0.

src/calliope/config.py

@@ -3,7 +3,6 @@
 """Implements the Calliope configuration class."""
 
 from collections.abc import Hashable
-from datetime import datetime
 from pathlib import Path
 from typing import Annotated, Literal, TypeVar
 
@@ -111,7 +110,7 @@ class Init(ConfigBaseModel):
     Defaults to False to mitigate unexpected broadcasting when applying overrides.
     """
 
-    time_subset: tuple[datetime, datetime] | None = Field(default=None)
+    time_subset: tuple[str, str] | None = Field(default=None)
     """
     Subset of timesteps as an two-element list giving the **inclusive** range.
     For example, ["2005-01", "2005-04"] will create a time subset from "2005-01-01 00:00:00" to "2005-04-31 23:59:59".
@@ -149,7 +148,7 @@ class BuildOperate(ConfigBaseModel):
         "frozen": True,
         "json_schema_extra": hide_from_schema(
             ["start_window_idx"]
-        ),  # FIXME-remove, config should not be altered by our code
+        ),  # FIXME-remove, config should not be altered within calliope our code
         "revalidate_instances": "always",
         "use_attribute_docstrings": True,
     }

tests/test_backend_module.py

@@ -10,8 +10,9 @@
 @pytest.mark.parametrize("valid_backend", ["pyomo", "gurobi"])
 def test_valid_model_backend(simple_supply, valid_backend):
     """Requesting a valid model backend must result in a backend instance."""
+    build_config = simple_supply.config.build.update({"backend": valid_backend})
     backend_obj = backend.get_model_backend(
-        valid_backend, simple_supply._model_data, simple_supply.applied_math
+        build_config, simple_supply._model_data, simple_supply.applied_math
     )
     assert isinstance(backend_obj, BackendModel)
 

tests/test_core_model.py

@@ -151,7 +151,7 @@ def test_build_operate_not_allowed_build(self):
 
 
 class TestBuild:
-    @pytest.fixture(scope="class")
+    @pytest.fixture
     def init_model(self):
         return build_model({}, "simple_supply,two_hours,investment_costs")
 

tests/test_core_preprocess.py

@@ -95,7 +95,7 @@ def override(param):
 
         assert check_error_or_warning(
             error,
-            "subset time range ['2005-03', '2005-04'] is outside the input data time range [2005-01-01 00:00:00, 2005-01-05 23:00:00]",
+            "subset time range ('2005-03', '2005-04') is outside the input data time range [2005-01-01 00:00:00, 2005-01-05 23:00:00]",
         )
 
         # should fail: time subset out of range of input data