mirror of
https://github.com/SquidDev-CC/CC-Tweaked
synced 2024-06-25 14:43:22 +00:00
9048deeb95
- Define an expect(index, actual_value, types...) helper function which takes an argument index, value and list of permissable types and ensures the value is of one of those types. If not, it will produce an error message with the expected and actual type, as well as the argument number and (if available) the function name. - Expose expect in the global scope as _G["~expect"], hopefully making it clear it is internal. - Replace most manual type checks with this helper method. - Write tests to ensure this argument validation works as expected Also fix a couple of bugs exposed by this refactor and the subsequent tests: - Make rednet checks a little more strict - rednet.close(false) is no longer valid. - Error when attempting to redirect the terminal to itself (term.redirect(term)).
77 lines
2.4 KiB
Lua
77 lines
2.4 KiB
Lua
--- Tests the io library is (mostly) consistent with PUC Lua.
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--
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-- These tests are based on the tests for Lua 5.1
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describe("The io library", function()
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it("io.input on a handle returns that handle", function()
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expect(io.input(io.stdin)):equals(io.stdin)
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end)
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it("io.output on a handle returns that handle", function()
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expect(io.output(io.stdout)):equals(io.stdout)
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end)
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describe("io.type", function()
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it("returns file on handles", function()
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local handle = io.input()
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expect(handle):type("table")
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expect(io.type(handle)):equals("file")
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end)
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it("returns nil on values", function()
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expect(io.type(8)):equals(nil)
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end)
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it("returns nil on tables", function()
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expect(io.type(setmetatable({}, {}))):equals(nil)
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end)
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end)
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describe("io.lines", function()
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it("validates arguments", function()
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io.lines(nil)
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expect.error(io.lines, ""):eq("/: No such file")
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expect.error(io.lines, false):eq("bad argument #1 (expected string, got boolean)")
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end)
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end)
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describe("io.open", function()
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it("validates arguments", function()
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io.open("")
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io.open("", "r")
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expect.error(io.open, nil):eq("bad argument #1 (expected string, got nil)")
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expect.error(io.open, "", false):eq("bad argument #2 (expected string, got boolean)")
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end)
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it("returns an error message on non-existent files", function()
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local a, b = io.open('xuxu_nao_existe')
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expect(a):equals(nil)
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expect(b):type("string")
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end)
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end)
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pending("io.output allows redirecting and seeking", function()
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fs.delete("/tmp/io_spec.txt")
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io.output("/tmp/io_spec.txt")
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expect(io.output()):not_equals(io.stdout)
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expect(io.output():seek()):equal(0)
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assert(io.write("alo alo"))
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expect(io.output():seek()):equal(#("alo alo"))
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expect(io.output():seek("cur", -3)):equal(#("alo alo") - 3)
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assert(io.write("joao"))
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expect(io.output():seek("end"):equal(#("alo joao")))
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expect(io.output():seek("set")):equal(0)
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assert(io.write('"<22>lo"', "{a}\n", "second line\n", "third line \n"))
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assert(io.write('<EFBFBD>fourth_line'))
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io.output(io.stdout)
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expect(io.output()):equals(io.stdout)
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end)
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end)
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