From c64f44257447ed29cd70b729cb814f50ff3504a5 Mon Sep 17 00:00:00 2001
From: "Robert T. McGibbon" <rmcgibbo@gmail.com>
Date: Sat, 23 Jan 2021 21:00:40 -0500
Subject: [PATCH] Add check 'python-include-tests'

---
 overlays/python-include-tests.nix | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 overlays/python-include-tests.nix

diff --git a/overlays/python-include-tests.nix b/overlays/python-include-tests.nix
new file mode 100644
index 0000000..d0d5dba
--- /dev/null
+++ b/overlays/python-include-tests.nix
@@ -0,0 +1,26 @@
+{ builtAttrs
+, packageSet
+, namePositions
+}@attrs:
+
+final: prev:
+let
+  inherit (prev) lib;
+  inherit (import ../lib { inherit lib; }) checkBuildPytonPackageFor;
+
+  checkDerivation = drv:
+    lib.singleton {
+        name = "python-include-tests";
+        cond = let
+            hasCheckPhase = drv ? checkPhase;
+            hasDoCheckFalse = (drv ? doCheck) && (drv.doCheck == false);
+            hasPytestCheckHook = drv ? checkInputs && lib.any (map (n: n.name == "pytest-check-hook") drv.checkInputs);
+            hasPythonImportsCheck = drv ? pythonImportsCheck;
+        in
+            ((! hasCheckPhase) || hasDoCheckFalse) && (! hasPytestCheckHook) && (! hasPythonImportsCheck);
+        msg = ''
+          Add a checkPhase for tests, or at least pythonImportsCheck.
+        '';
+    };
+  in
+checkBuildPytonPackageFor checkDerivation attrs final prev