tests: add testing for scripts processing (#364)

Adding and fixing tests.

---------

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

Author: henryiii

tests/packages/custom_cmake/CMakeLists.txt

@@ -14,4 +14,4 @@ if(NOT EXAMPLE_INCLUDE_FOUND)
 endif()
 
 # Testing scripts
-install(FILES scripts/script1 DESTINATION "${SKBUILD_SCRIPTS_DIR}")
+install(PROGRAMS scripts/script1 DESTINATION "${SKBUILD_SCRIPTS_DIR}")

tests/packages/custom_cmake/scripts/script1

@@ -1,5 +1,5 @@
-#/usr/bin/env python3
+#!/usr/bin/env python3
 
-import sys
+from pathlib import Path
 
-print(f"Ran script 1 from {sys.executable}")
+print(Path(__file__).resolve())

tests/test_custom_modules.py

@@ -1,7 +1,10 @@
 from __future__ import annotations
 
+import sys
 from pathlib import Path
 
+import pytest
+
 DIR = Path(__file__).parent
 PROJECT_DIR = DIR / "packages" / "custom_cmake"
 
@@ -10,4 +13,12 @@ def test_ep(isolated):
     isolated.install("hatchling", "scikit-build-core[pyproject]")
     isolated.install(PROJECT_DIR / "extern", isolated=False)
     isolated.install(PROJECT_DIR, "-v", isolated=False)
-    # Needs script fix: assert isolated.run("script1") == ""
+
+    if sys.platform.startswith("win"):
+        # TODO: maybe figure out how to make this work on windows?
+        pytest.skip("Can't run script on Windows")
+
+    script = isolated.run("script1", capture=True).strip()
+    pysys = isolated.execute("import sys; print(sys.executable)").strip()
+    contents = Path(script).read_text()
+    assert contents.startswith(f"#!{pysys}")