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local queue = require "util.queue";
describe("util.queue", function()
describe("#new()", function()
it("should work", function()
do
local q = queue.new(10);
assert.are.equal(q.size, 10);
assert.are.equal(q:count(), 0);
assert.is_true(q:push("one"));
assert.is_true(q:push("two"));
assert.is_true(q:push("three"));
for i = 4, 10 do
assert.is_true(q:push("hello"));
assert.are.equal(q:count(), i, "count is not "..i.."("..q:count()..")");
end
assert.are.equal(q:push("hello"), nil, "queue overfull!");
assert.are.equal(q:push("hello"), nil, "queue overfull!");
assert.are.equal(q:pop(), "one", "queue item incorrect");
assert.are.equal(q:pop(), "two", "queue item incorrect");
assert.is_true(q:push("hello"));
assert.is_true(q:push("hello"));
assert.are.equal(q:pop(), "three", "queue item incorrect");
assert.is_true(q:push("hello"));
assert.are.equal(q:push("hello"), nil, "queue overfull!");
assert.are.equal(q:push("hello"), nil, "queue overfull!");
assert.are.equal(q:count(), 10, "queue count incorrect");
for _ = 1, 10 do
assert.are.equal(q:pop(), "hello", "queue item incorrect");
end
assert.are.equal(q:count(), 0, "queue count incorrect");
assert.is_true(q:push(1));
for i = 1, 1001 do
assert.are.equal(q:pop(), i);
assert.are.equal(q:count(), 0);
assert.is_true(q:push(i+1));
assert.are.equal(q:count(), 1);
end
assert.are.equal(q:pop(), 1002);
assert.is_true(q:push(1));
for i = 1, 1000 do
assert.are.equal(q:pop(), i);
assert.is_true(q:push(i+1));
end
assert.are.equal(q:pop(), 1001);
assert.are.equal(q:count(), 0);
end
do
-- Test queues that purge old items when pushing to a full queue
local q = queue.new(10, true);
for i = 1, 10 do
q:push(i);
end
assert.are.equal(q:count(), 10);
assert.is_true(q:push(11));
assert.are.equal(q:count(), 10);
assert.are.equal(q:pop(), 2); -- First item should have been purged
for i = 12, 32 do
assert.is_true(q:push(i));
end
assert.are.equal(q:count(), 10);
assert.are.equal(q:pop(), 23);
end
end);
end);
end);
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