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local list = require "ensure.list"
local function handler_with_errors ()
local errors = {}
local handler = {
identifier = function (_, name)
return name
end,
invalid = function (_, text)
table.insert(errors, text)
end,
}
return handler, errors
end
describe("List reader", function()
it("should translate empty file into an empty table", function()
assert.are.same({}, list.read"")
end)
it("should match valid package names", function()
local samples = {"name", "@name", "+name", "_name", "name-1.45"}
for _, name in pairs(samples) do
assert.are.same({name}, list.read(name))
end
end)
it("should split package names on whitespace", function()
assert.are.same(
{"one", "two", "three", "four", "five"},
list.read [[one two three
four five]]
)
end)
it("should ignore leading and trailing whitespace", function()
assert.are.same({"name"}, list.read" name ")
end)
it("should not match invalid package names", function()
assert.are.same({}, list.read".hey")
assert.are.same({}, list.read"a=3")
end)
it("should allow custom handlers", function()
local handler = {}
stub(handler, "identifier")
stub(handler, "invalid")
local _ = list.read("correct .incorrect", handler)
assert.stub(handler.identifier).was.called()
assert.stub(handler.invalid).was.called()
end)
it("should match valid and invalid names together", function()
local handler, errors = handler_with_errors()
local output = list.read("correct .incorrect another -and-not", handler)
assert.are.same({"correct", "another"}, output)
assert.are.same({".incorrect", "-and-not"}, errors)
end)
end)
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