test: editable install cover package navigation

tests/packages/navigate_editable/pyproject.toml

@@ -10,4 +10,4 @@ dependencies = [
 ]
 
 [tool.scikit-build]
-wheel.packages = ["python/shared_pkg"]
+wheel.packages = ["python/shared_pkg", "python/py_pkg"]

tests/packages/navigate_editable/python/py_pkg/py1_pkg/__init__.py

@@ -0,0 +1,3 @@
+from ..py2_pkg import py2_method_a
+
+__all__ = ["py2_method_a"]

tests/packages/navigate_editable/python/py_pkg/py1_pkg/py1_module.py

@@ -0,0 +1,4 @@
+from ..py2_pkg import py2_method_b
+from ..py2_pkg.py2_module import py2_method_c
+
+__all__ = ["py2_method_b", "py2_method_c"]

tests/packages/navigate_editable/python/py_pkg/py2_pkg/__init__.py

@@ -0,0 +1,6 @@
+def py2_method_a():
+    print("py2_method_a")
+
+
+def py2_method_b():
+    print("py2_method_b")

tests/packages/navigate_editable/python/py_pkg/py2_pkg/py2_module.py

@@ -0,0 +1,2 @@
+def py2_method_c():
+    print("py2_method_c")

tests/test_editable.py

@@ -48,3 +48,35 @@ def test_navigate_editable(isolated, isolate, package):
 
     value = isolated.execute("import shared_pkg; shared_pkg.read_c_generated_txt()")
     assert value == "Some_value_C"
+
+
+@pytest.mark.compile()
+@pytest.mark.configure()
+@pytest.mark.integration()
+@pytest.mark.parametrize("isolate", [True, False], ids=["isolated", "notisolated"])
+@pytest.mark.usefixtures("navigate_editable")
+def test_navigate_editable2(isolated, isolate):
+    isolate_args = ["--no-build-isolation"] if not isolate else []
+    isolated.install("pip>=23")
+    if not isolate:
+        isolated.install("scikit-build-core[pyproject]")
+
+    isolated.install(
+        "-v", "--config-settings=build-dir=build/{wheel_tag}", *isolate_args, "-e", "."
+    )
+
+    # Navigate from py_package to py_package
+    value = isolated.execute("import py_pkg.py1_pkg; py_pkg.py1_pkg.py2_method_a()")
+    assert value == "py2_method_a"
+
+    # Navigate from py_package.py_module to py_package
+    value = isolated.execute(
+        "import py_pkg.py1_pkg.py1_module; py_pkg.py1_pkg.py1_module.py2_method_b()"
+    )
+    assert value == "py2_method_b"
+
+    # Navigate from py_package.py_module to py_package.py_module
+    value = isolated.execute(
+        "import py_pkg.py1_pkg.py1_module; py_pkg.py1_pkg.py1_module.py2_method_c()"
+    )
+    assert value == "py2_method_c"