Allow later numpy versions (#124)

* Allow later numpy versions

* Use tmp_path for download tests so the root dir isn't polluted

pyproject.toml

@@ -9,17 +9,14 @@ repository = "https://github.com/PyVRP/VRPLIB"
 
 [tool.poetry.dependencies]
 python = "^3.9"
-numpy = "^1.19.3"
+numpy = ">=1.19.3"
 
 [tool.poetry.group.dev.dependencies]
 pytest = "^7.1.2"
 codecov = "^2.1.13"
 pytest-cov = "^4.0.0"
 pre-commit = "^2.19.0"
 
-[pytest]
-pythonpath = [".", "vrplib"]
-
 [build-system]
 requires = ["poetry-core>=1.0.0"]
 build-backend = "poetry.core.masonry.api"
@@ -48,6 +45,7 @@ ignore = [
 
 [tool.pytest.ini_options]
 addopts = "--cov=. --cov-report=xml"
+pythonpath = [".", "vrplib"]
 
 [tool.coverage.run]
 omit = [

tests/download/test_download_instance.py

@@ -6,21 +6,21 @@
 from vrplib import download_instance
 
 
-def test_deprecation_warning():
+def test_deprecation_warning(tmp_path):
     """
     Checks if a deprecation warning is raised when the function is called.
     """
     with pytest.warns(DeprecationWarning):
-        download_instance("X-n101-k25", "tmp")
+        download_instance("X-n101-k25", tmp_path / "tmp")
 
 
 @pytest.mark.filterwarnings("ignore:The function")
-def test_raise_invalid_name():
+def test_raise_invalid_name(tmp_path):
     """
     Raise an error if the passed-in name is invalid.
     """
     with pytest.raises(ValueError):
-        download_instance("invalid_name", "tmp")
+        download_instance("invalid_name", tmp_path / "tmp")
 
 
 @pytest.mark.filterwarnings("ignore:The function")

tests/download/test_download_solution.py

@@ -6,21 +6,21 @@
 from vrplib import download_solution
 
 
-def test_deprecation_warning():
+def test_deprecation_warning(tmp_path):
     """
     Checks if a deprecation warning is raised when the function is called.
     """
     with pytest.warns(DeprecationWarning):
-        download_solution("X-n101-k25", "tmp")
+        download_solution("X-n101-k25", tmp_path / "tmp")
 
 
 @pytest.mark.filterwarnings("ignore:The function")
-def test_raise_invalid_name():
+def test_raise_invalid_name(tmp_path):
     """
     Raise an error if the passed-in name is invalid.
     """
     with assert_raises(ValueError):
-        download_solution("invalid_name", "tmp")
+        download_solution("invalid_name", tmp_path / "tmp")
 
 
 @pytest.mark.filterwarnings("ignore:The function")