simple context test

.luacheckrc

@@ -1,6 +1,7 @@
 globals = {
 	"mtscad",
-	"minetest"
+	"minetest",
+	"vector" -- for test-env patching
 }
 
 read_globals = {
@@ -9,7 +10,7 @@ read_globals = {
 	table = {fields = {"copy", "getn"}},
 
 	-- Minetest
-	"vector", "ItemStack",
+	"ItemStack",
 	"dump", "dump2",
 	"VoxelArea",
 

spec/context_spec.lua

@@ -0,0 +1,29 @@
+require("mineunit")
+
+mineunit("core")
+
+sourcefile("init")
+
+-- patch test env
+function vector.zero()
+	return vector.new(0, 0, 0)
+end
+
+function vector.copy(v)
+	return vector.new(v.x, v.y, v.z)
+end
+
+describe("mtscad.create_context() test", function()
+	it("set_node() works", function()
+		local origin = { x=4, y=0, z=0 }
+        local ctx = mtscad.create_context({ pos = origin })
+
+        ctx
+        :with("default:mese")
+        :set_node()
+
+        local node = minetest.get_node(origin)
+        assert.not_nil(node)
+        assert.equal("default:mese", node.name)
+	end)
+end)