Module:Adjacent stations/testcases explained

-- Unit tests for . Click talk page to run tests.

--When adding new tests make sure to test all possible combinations.A system can have one line or many;A line can have one type, many or none;A system or line can use defaults;A line or type can use a title with or without a short name;A system, line, or type can use an icon or an icon format or can not use any;--

local p = require('Module:UnitTests')

function p:test_01_icon self:preprocess_equals_sandbox_many('