diff --git a/.tests/parse/file/weaschem_data_table.test.lua b/.tests/parse/file/weaschem_data_table.test.lua
new file mode 100644
index 0000000..0c32bf5
--- /dev/null
+++ b/.tests/parse/file/weaschem_data_table.test.lua
@@ -0,0 +1,114 @@
+
+local weaschem = require("worldeditadditions_core.utils.parse.file.weaschem")
+
+local parse_json = require("worldeditadditions_core.utils.parse.json")
+
+local inspect = require("worldeditadditions_core.utils.inspect")
+
+local function get_string(test_name)
+	if test_name:match("[^%w_]") then return nil end -- Just in case
+	local filename = ".tests/parse/file/testfiles/idmap_"..test_name..".json"
+	
+	local handle = io.open(filename, "r")
+	if handle == nil then return nil end
+	local content = handle:read("*a")
+	handle:close()
+	
+	return content
+end
+
+local epsilon = 0.000001
+local function validate_data_table(datatable, is_delta)
+	-- print("DEBUG:validate_data_table datatable", inspect(datatable))
+	for i, value in pairs(datatable) do
+		assert.are.same("number", type(i))
+		assert.are.same("number", type(value))
+		assert.is_true(value - math.floor(value) < epsilon)
+		assert.is_true(i - math.floor(i) < epsilon)
+		if is_delta then
+			assert.is_true(value >= -2)
+		else
+			assert.is_true(value >= -1)
+		end
+	end
+end
+
+describe("parse.file.weaschem.parse_data_table type full", function()
+	it("should parse a valid data table type full", function()
+		local content = '1,2,3'
+		local success, code, result = weaschem.parse_data_table(content)
+
+		assert.are.same(true, success)
+		assert.are.same("SUCCESS", code)
+		assert.are.same("table", type(result))
+		validate_data_table(result, false)
+		assert.are.same({
+			[0] = 1,
+			[1] = 2,
+			[2] = 3
+		}, result)
+	end)
+	it("should parse a valid data table type delta", function()
+		local content = '4,2,5'
+		local success, code, result = weaschem.parse_data_table(content)
+
+		assert.are.same(true, success)
+		assert.are.same("SUCCESS", code)
+		assert.are.same("table", type(result))
+		validate_data_table(result, true)
+		assert.are.same({
+			[0] = 4,
+			[1] = 2,
+			[2] = 5
+		}, result)
+	end)
+	it("should parse a valid data table with multiple values the same", function()
+		local content = '4,2,5,5'
+		local success, code, result = weaschem.parse_data_table(content)
+
+		assert.are.same(true, success)
+		assert.are.same("SUCCESS", code)
+		assert.are.same("table", type(result))
+		validate_data_table(result, true)
+		assert.are.same({
+			[0] = 4,
+			[1] = 2,
+			[2] = 5,
+			[3] = 5
+		}, result)
+	end)
+	it("should parse a valid data table type full with special value -1", function()
+		local content = '4,2,5,-1'
+		local success, code, result = weaschem.parse_data_table(content)
+
+		assert.are.same(true, success)
+		assert.are.same("SUCCESS", code)
+		assert.are.same("table", type(result))
+		validate_data_table(result, true)
+		assert.are.same({
+			[0] = 4,
+			[1] = 2,
+			[2] = 5,
+			[3] = -1
+		}, result)
+	end)
+	it("should parse a valid data table with run-length encoding", function()
+		local content = '4,2,5x5'
+		local success, code, result = weaschem.parse_data_table(content)
+		
+		assert.are.same(true, success)
+		assert.are.same("SUCCESS", code)
+		assert.are.same("table", type(result))
+		validate_data_table(result, false)
+		assert.are.same({
+			[0] = 4,
+			[1] = 2,
+			[2] = 5,
+			[3] = 5,
+			[4] = 5,
+			[5] = 5,
+			[6] = 5
+		}, result)
+	end)
+end)
+