commit c37dd1678fbdc9c831ae10af049ab506caa8fa74
Author: Axel Meyer <axel.meyer@durania.net>
Date:   Tue May 12 02:29:07 2026 +0200

    initial(P.3.3): lib-core.input-test test-module

diff --git a/init.lua b/init.lua
new file mode 100644
index 0000000..3b942f8
--- /dev/null
+++ b/init.lua
@@ -0,0 +1,46 @@
+-- lib-core.input-test — P.3.3 test-module
+-- Validates engine.input mouse surface + lib-core.input v0.3.0 BIND_MAP refactor.
+-- Headless via P.3.1 test-mode pattern. 13 assertions.
+
+local input = require("lib-core.input")
+
+function init(ctx)
+    -- Engine surface present (5 assertions)
+    engine.test.assert(type(engine.input.MOUSE_LEFT)   == "number",
+                       "MOUSE_LEFT constant is integer")
+    engine.test.assert(type(engine.input.MOUSE_RIGHT)  == "number",
+                       "MOUSE_RIGHT constant is integer")
+    engine.test.assert(type(engine.input.MOUSE_MIDDLE) == "number",
+                       "MOUSE_MIDDLE constant is integer")
+    engine.test.assert(type(engine.input.is_mouse_down)     == "function",
+                       "is_mouse_down function registered")
+    engine.test.assert(type(engine.input.was_mouse_pressed) == "function",
+                       "was_mouse_pressed function registered")
+
+    -- bind() accepts mouse-strings (1 assertion)
+    input.bind("click", {"mouse_left"})
+    engine.test.equals(input.action_count(), 1, "action_count == 1 after mouse bind")
+
+    -- bind() accepts mixed key+mouse (1 assertion)
+    input.bind("interact", {"e", "mouse_left"})
+    engine.test.equals(input.action_count(), 2, "action_count == 2 after mixed bind")
+
+    -- bind() rejects unknown mouse-name (atomic) (3 assertions)
+    local ok, err = pcall(input.bind, "bad", {"mouse_xyz"})
+    engine.test.assert(not ok, "bind('bad', {'mouse_xyz'}) raises Lua error")
+    engine.test.assert(err and err:find("mouse_xyz", 1, true),
+                       "error message mentions the bad string")
+    engine.test.equals(input.action_count(), 2,
+                       "no partial state mutation on failed bind")
+
+    -- is_action_down returns false in headless (no actual press) (2 assertions)
+    engine.test.equals(input.is_action_down("click"), false,
+                       "headless: unpressed mouse_left is_action_down=false")
+    engine.test.equals(input.was_action_pressed("click"), false,
+                       "headless: unpressed was_action_pressed=false")
+
+    -- Existing key-only binding still works (regression-check) (1 assertion)
+    input.bind("walk_left", {"a", "left"})
+    engine.test.equals(input.action_count(), 3,
+                       "key-only bind still works after BIND_MAP refactor")
+end
diff --git a/manifest.core b/manifest.core
new file mode 100644
index 0000000..cd1cd33
--- /dev/null
+++ b/manifest.core
@@ -0,0 +1,6 @@
+{
+    "id": "lib-core.input-test.core",
+    "kind": "lib",
+    "version": "0.1.0",
+    "license": "Proprietary"
+}
diff --git a/manifest.module b/manifest.module
new file mode 100644
index 0000000..e59b4fb
--- /dev/null
+++ b/manifest.module
@@ -0,0 +1,10 @@
+{
+    "id": "lib-core.input-test",
+    "kind": "test-module",
+    "version": "0.1.0",
+    "api": "^0.1",
+    "entry_point": "init.lua",
+    "deps": [
+        {"id": "lib-core.input", "version": "0.3.0"}
+    ]
+}