describe("util.smqueue", function() local smqueue setup(function() smqueue = require "util.smqueue"; end) describe("#new()", function() it("should work", function() local q = smqueue.new(10); assert.truthy(q); end) end) describe("#push()", function() it("should allow pushing many items", function() local q = smqueue.new(10); for i = 1, 20 do q:push(i); end assert.equal(20, q:count_unacked()); end) end) describe("#resumable()", function() it("returns true while the queue is small", function() local q = smqueue.new(10); for i = 1, 10 do q:push(i); end assert.truthy(q:resumable()); q:push(11); assert.falsy(q:resumable()); end) end) describe("#ack", function() it("allows removing items", function() local q = smqueue.new(10); for i = 1, 10 do q:push(i); end assert.same({ 1; 2; 3 }, q:ack(3)); assert.same({ 4; 5; 6 }, q:ack(6)); assert.falsy(q:ack(3), "can't go backwards") assert.falsy(q:ack(100), "can't ack too many") for i = 11, 20 do q:push(i); end assert.same({ 11; 12 }, q:ack(12), "items are dropped"); end) end) describe("#resume", function() it("iterates over current items", function() local q = smqueue.new(10); for i = 1, 12 do q:push(i); end assert.same({ 3; 4; 5; 6 }, q:ack(6)); assert.truthy(q:resumable()); local resume = {} for _, i in q:resume() do resume[i] = true end assert.same({ [7] = true; [8] = true; [9] = true; [10] = true; [11] = true; [12] = true }, resume); end) end) describe("#table", function () it("produces a compat layer", function () local q = smqueue.new(10); for i = 1,10 do q:push(i); end do local t = q:table(); assert.same({ 1; 2; 3; 4; 5; 6; 7; 8; 9; 10 }, t); end do for i = 11,20 do q:push(i); end local t = q:table(); assert.same({ 11; 12; 13; 14; 15; 16; 17; 18; 19; 20 }, t); end do q:ack(15); local t = q:table(); assert.same({ 16; 17; 18; 19; 20 }, t); end do q:ack(20); local t = q:table(); assert.same({}, t); end end) end) end);