diff options
Diffstat (limited to 'tests/config/tapered/src/tapered.lua')
-rw-r--r-- | tests/config/tapered/src/tapered.lua | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/tests/config/tapered/src/tapered.lua b/tests/config/tapered/src/tapered.lua new file mode 100644 index 0000000..5bcb331 --- /dev/null +++ b/tests/config/tapered/src/tapered.lua @@ -0,0 +1,189 @@ +-- Helper variables and functions +local get_info = debug.getinfo +local pcall = pcall +local slice = string.sub +local sprintf = string.format +local str_find = string.find +local tonumber = tonumber +-- Lua 5.3 moved unpack to table.unpack +local unpack = unpack or table.unpack +local write = io.write +local rawget = rawget +local getmetatable = getmetatable +local exit = os.exit + +---- Helper methods + +--- C-like printf method +local printf = function(fmt, ...) + write(sprintf(fmt, ...)) +end + +--- Compare potentially complex tables or objects +-- +-- Ideas here are taken from [Penlight][p], [Underscore][u], [cwtest][cw], and +-- [luassert][l]. +-- [p]: https://github.com/stevedonovan/Penlight +-- [u]: https://github.com/mirven/underscore.lua +-- [cw]: https://github.com/catwell/cwtest +-- [l]: https://github.com/Olivine-Labs/luassert +-- +-- Predeclare both function names +local keyvaluesame +local deepsame +-- +--- keyvaluesame(table, table) => true or false +-- Helper method to compare all the keys and values of a table +keyvaluesame = function (t1, t2) + for k1, v1 in pairs(t1) do + local v2 = t2[k1] + if v2 == nil or not deepsame(v1, v2) then return false end + end + + -- Check for any keys present in t2 but not t1 + for k2, _ in pairs(t2) do + if t1[k2] == nil then return false end + end + + return true +end +-- +--- deepsame(item, item) => true or false +-- Compare two items of any type for identity +deepsame = function (t1, t2) + local ty1, ty2 = type(t1), type(t2) + if ty1 ~= ty2 then return false end + if ty1 ~= 'table' then return t1 == t2 end + + -- If ._eq is found, use == and end quickly. + -- As of Lua 5.3 == only cares if **one** of the two items has a __eq + -- metamethod. Penlight, underscore and cwtest take the same approach, + -- so I will as well. + local eq = rawget(getmetatable(t1) or {}, '__eq') + if (type(eq) == 'function') then + return not not eq(t1, t2) + else + return keyvaluesame(t1, t2) + end +end + +---- tapered test suite + +local exit_status = 0 +local test_count = 0 +local debug_level = 3 + +-- All other tests are defined in terms of this primitive, which is +-- kept private. +local _test = function (exp, msg) + test_count = test_count + 1 + + if msg then + msg = sprintf(" - %s", msg) + else + msg = '' + end + + if exp then + printf("ok %s%s\n", test_count, msg) + else + exit_status = 1 + exit_status + printf("not ok %s%s\n", test_count, msg) + local info = get_info(debug_level) + printf("# Trouble in %s around line %s\n", + slice(info.source, 2), info.currentline) + end +end + +local ok = function (expression, msg) + _test(expression, msg) +end + +local nok = function (expression, msg) + _test(not expression, msg) +end + +local is = function (actual, expected, msg) + _test(actual == expected, msg) +end + +local isnt = function (actual, expected, msg) + _test(actual ~= expected, msg) +end + +local same = function (actual, expected, msg) + _test(deepsame(actual, expected), msg) +end + +local like = function (str, pattern, msg) + _test(str_find(str, pattern), msg) +end + +local unlike = function (str, pattern, msg) + _test(not str_find(str, pattern), msg) +end + +local pass = function (msg) + _test(true, msg) +end + +local fail = function (msg) + _test(false, msg) +end + +local boom = function (func, args, msg) + local err, errmsg + err, errmsg = pcall(func, unpack(args)) + _test(not err, msg) + if not err and type(errmsg) == 'string' then + printf('# Got this error: "%s"\n', errmsg) + end +end + +local done = function (n) + local expected = tonumber(n) + if not expected or test_count == expected then + printf('1..%d\n', test_count) + elseif expected ~= test_count then + exit_status = 1 + exit_status + local s + if expected == 1 then s = '' else s = 's' end + printf("# Bad plan. You planned %d test%s but ran %d\n", + expected, s, test_count) + end + exit(exit_status) +end + +local version = function () + return "2.3.0" +end + +local author = function () + return "Peter Aronoff" +end + +local url = function () + return "https://github.com/telemachus/tapered" +end + +local license = function () + return "BSD 3-Clause" +end + +return { + ok = ok, + nok = nok, + is = is, + isnt = isnt, + same = same, + like = like, + unlike = unlike, + pass = pass, + fail = fail, + boom = boom, + done = done, + version = version, + author = author, + url = url, + license = license +} |