commit e6e293bce64c094e1fc8a69b021ba4526c231cd4
Author: Axel Meyer <axel.meyer@durania.net>
Date:   Thu May 14 17:05:23 2026 +0200

    feat(P.3.7): lib-core.command-test v0.1.0 — 21 state assertions

diff --git a/init.lua b/init.lua
new file mode 100644
index 0000000..00867c2
--- /dev/null
+++ b/init.lua
@@ -0,0 +1,87 @@
+-- lib-core.command-test — pure-state assertions via engine.test.
+-- See meta/docs/superpowers/specs/2026-05-14-p3-7-lib-command-design.md §5.
+
+local command = require("lib-core.command")
+local T       = engine.test
+
+function init(ctx)
+    -- Mocked-Unit Helper: closure-state simulates a module's unit-state.
+    local function make_unit(x0, y0, speed)
+        local state = { x = x0, y = y0 }
+        local h = command.register(
+            function() return { x = state.x, y = state.y } end,
+            function(nx, ny) state.x = nx; state.y = ny end,
+            speed
+        )
+        return h, state
+    end
+
+    -- Register / Unregister (3)
+    local h1, s1 = make_unit(0, 0, 100)
+    T.assert(h1 ~= nil and h1 >= 1, "register returns positive handle")
+    T.equals(command.count_registered(), 1, "count_registered after register")
+    command.unregister(h1)
+    T.equals(command.count_registered(), 0, "count_registered after unregister")
+
+    -- Re-register for further tests
+    local h2, s2 = make_unit(0, 0, 100)
+    local h3, s3 = make_unit(0, 0, 200)
+
+    -- Move-Issue + State-Query (3)
+    command.move_to({h2}, 100, 0)
+    local cur = command.current(h2)
+    T.assert(cur ~= nil and cur.type == "move"
+             and cur.target_x == 100 and cur.target_y == 0,
+             "current returns move-command data after move_to")
+    T.assert(command.is_moving(h2), "is_moving true after move_to")
+    T.assert(not command.is_moving(h3), "is_moving false for idle unit")
+
+    -- State-Query bei idle (2)
+    T.assert(command.current(h3) == nil, "current returns nil for idle unit")
+    T.assert(not command.is_moving(99999), "is_moving false for unknown handle")
+
+    -- Update-step (2): unit moves toward target
+    s2.x, s2.y = 0, 0          -- reset
+    command.move_to({h2}, 100, 0)
+    command.update(0.1)         -- 100 px/s * 0.1s = 10 px step
+    T.equals(s2.x, 10, "update moves 10px in 0.1s @ 100 px/s")
+    T.equals(s2.y, 0, "y unchanged for horizontal move")
+
+    -- Arrival-snap (2): step >= dist clears + snaps
+    s2.x, s2.y = 0, 0
+    command.move_to({h2}, 5, 0)
+    command.update(0.1)         -- step = 10 >= dist = 5 → snap + clear
+    T.equals(s2.x, 5, "arrival snap to target.x")
+    T.assert(command.current(h2) == nil, "arrival clears active command")
+
+    -- Cancel + cancel_all (3)
+    s2.x, s2.y = 0, 0
+    command.move_to({h2, h3}, 1000, 0)
+    command.cancel(h2)
+    T.assert(command.current(h2) == nil, "cancel clears command on h2")
+    T.assert(command.current(h3) ~= nil, "cancel doesn't affect h3")
+    command.cancel_all()
+    T.assert(command.current(h3) == nil, "cancel_all clears remaining")
+
+    -- Speed-Setter (2)
+    T.equals(command.speed(h2), 100, "speed from register")
+    command.set_speed(h2, 250)
+    T.equals(command.speed(h2), 250, "set_speed updates")
+
+    -- Arrive-Threshold + Enabled (3)
+    T.equals(command.arrive_threshold(), 2, "default threshold = 2")
+    command.set_arrive_threshold(5)
+    T.equals(command.arrive_threshold(), 5, "set_arrive_threshold writes")
+    T.assert(command.enabled(), "enabled default true")
+    command.set_enabled(false)
+    T.assert(not command.enabled(), "set_enabled(false) writes")
+    command.set_enabled(true)
+
+    -- Error-Handling (2)
+    local ok1 = pcall(function()
+        command.register("not a function", function() end, 100)
+    end)
+    T.assert(not ok1, "register with non-function errors")
+    local ok2 = pcall(function() command.move_to({99999}, 0, 0) end)
+    T.assert(not ok2, "move_to with unknown handle errors")
+end
diff --git a/manifest.core b/manifest.core
new file mode 100644
index 0000000..e9cff30
--- /dev/null
+++ b/manifest.core
@@ -0,0 +1,6 @@
+{
+    "id": "lib-core.command-test.core",
+    "kind": "lib",
+    "version": "0.1.0",
+    "license": "Proprietary"
+}
diff --git a/manifest.module b/manifest.module
new file mode 100644
index 0000000..28ffcf9
--- /dev/null
+++ b/manifest.module
@@ -0,0 +1,12 @@
+{
+    "id": "lib-core.command-test",
+    "version": "0.1.0",
+    "kind": "test-module",
+    "api": "^0.1",
+    "entry_point": "init.lua",
+    "deps": [
+        { "id": "lib-core.command", "version": "0.1.0" },
+        { "id": "lib-core.input",   "version": "0.3.0" },
+        { "id": "lib-core.camera",  "version": "0.3.0" }
+    ]
+}