3 files changed, 63 insertions, 2 deletions
diff --git a/advtrains/spec/poconvert_spec.lua b/advtrains/spec/poconvert_spec.lua
index 7b2ceea..51f33e7 100644
--- a/advtrains/spec/poconvert_spec.lua
+++ b/advtrains/spec/poconvert_spec.lua
@@ -10,7 +10,7 @@ describe("PO file converter", function()
 foo=bar
 baz=
 #@=wh\at\\@n=@=w\as\\@n
-multiline@nstrings=
+multiline@nstrings=multiline@nresult
 with context?=oder doch nicht]], poconvert.from_string("foo", [[
 msgid ""
 msgstr "whatever metadata"
@@ -28,7 +28,9 @@ msgstr "=w\\as\\\\\n"
 msgid "multi"
 "line\n"
 "strings"
-msgstr ""
+msgstr "multi"
+"line\n"
+"result"
 
 msgctxt "i18n context"
 msgid "with context?"
diff --git a/advtrains/spec/texture_spec.lua b/advtrains/spec/texture_spec.lua
new file mode 100644
index 0000000..2e3bd5d
--- /dev/null
+++ b/advtrains/spec/texture_spec.lua
@@ -0,0 +1,19 @@
+package.path = "../?.lua;" .. package.path
+local T = require "texture"
+
+describe("Texture creation", function()
+	it("works", function()
+		assert.same("^.png", tostring(T.raw"^.png"))
+		assert.same("foo\\:bar.png", tostring(T"foo:bar.png"))
+	end)
+end)
+
+describe("Texture modifiers", function()
+	it("work", function()
+		assert.same("x^[colorize:c", tostring(T"x":colorize"c"))
+		assert.same("x^[colorize:c:alpha", tostring(T"x":colorize("c", "alpha")))
+		assert.same("x^[multiply:c", tostring(T"x":multiply"c"))
+		assert.same("x^[resize:2x3", tostring(T"x":resize(2, 3)))
+		assert.same("x^[transformI", tostring(T"x":transform"I"))
+	end)
+end)
diff --git a/advtrains/spec/wagons_spec.lua b/advtrains/spec/wagons_spec.lua
new file mode 100644
index 0000000..df0687b
--- /dev/null
+++ b/advtrains/spec/wagons_spec.lua
@@ -0,0 +1,40 @@
+require "mineunit"
+mineunit "core"
+
+_G.advtrains = {
+	wagon_load_range = 32
+}
+sourcefile "wagons"
+
+local myproto = {_test = true}
+advtrains.register_wagon(":mywagon", myproto, "My wagon", "", false)
+advtrains.register_wagon_alias(":myalias", ":mywagon")
+advtrains.register_wagon_alias(":myotheralias", ":myalias")
+
+local myotherproto = {_other = true}
+advtrains.register_wagon(":noalias", myotherproto, "Not aliased wagon", "", false)
+advtrains.register_wagon_alias(":noalias", ":mywagon")
+
+advtrains.register_wagon_alias(":nilalias", ":nil")
+
+advtrains.register_wagon_alias(":R1", ":R2")
+advtrains.register_wagon_alias(":R2", ":R3")
+advtrains.register_wagon_alias(":R3", ":R1")
+
+describe("wagon alias system", function()
+	it("should work", function()
+		assert.same({":mywagon", myproto}, {advtrains.resolve_wagon_alias(":myalias")})
+		assert.equal(myproto, advtrains.wagon_prototypes[":myalias"])
+		assert.same({":mywagon", myproto}, {advtrains.resolve_wagon_alias(":myotheralias")})
+	end)
+	it("should respect wagon registration", function()
+		assert.same({":noalias", myotherproto}, {advtrains.resolve_wagon_alias(":noalias")})
+	end)
+	it("should handle recursive loops", function()
+		assert.same({}, {advtrains.resolve_wagon_alias(":R1")})
+	end)
+	it("should return nil for missing entries", function()
+		assert.same({}, {advtrains.resolve_wagon_alias(":what")})
+		assert.same({}, {advtrains.resolve_wagon_alias(":nilalias")})
+	end)
+end)