91 lines
2.6 KiB
Lua
91 lines
2.6 KiB
Lua
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insulate("Log buffer", function()
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-- auto-insulate every test
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local realIt = it
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it = function(name, func)
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insulate(function()
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realIt(name, func)
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end)
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end
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it("should buffer logs", function()
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local buffer = require "src.my-log-buffer"
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assert.is_false(buffer:hasLog())
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assert.is_nil(buffer:getLog())
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buffer:addLog(buffer.ERROR, "just a test")
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assert.is_true(buffer:hasLog())
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local severity, msg = buffer:getLog()
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assert.is_same(buffer.ERROR, severity)
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assert.is_same("just a test", msg)
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assert.is_false(buffer:hasLog())
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assert.is_nil(buffer:getLog())
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end)
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it("should maintain the order of logs", function()
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local buffer = require "src.my-log-buffer"
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buffer:addLog(buffer.INFO, "one")
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buffer:addLog(buffer.INFO, "two")
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buffer:addLog(buffer.INFO, "three")
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buffer:addLog(buffer.INFO, "four")
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local _, msg = buffer:getLog()
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assert.is_same("one", msg)
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local _, msg = buffer:getLog()
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assert.is_same("two", msg)
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local _, msg = buffer:getLog()
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assert.is_same("three", msg)
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local _, msg = buffer:getLog()
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assert.is_same("four", msg)
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end)
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it("should limit the number of logs and keep the newest", function()
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local buffer = require "src.my-log-buffer"
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for i=1, 20 do
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buffer:addLog(buffer.INFO, string.format("%d", i))
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end
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local _, msg = buffer:getLog()
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assert.is_same("11", msg)
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end)
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it("should discard info, then warning, then errors", function()
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local buffer = require "src.my-log-buffer"
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for i=1, 14 do
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local severity
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if i % 3 == 1 then
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severity = buffer.INFO
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elseif i % 3 == 2 then
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severity = buffer.WARN
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else
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severity = buffer.ERROR
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end
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buffer:addLog(severity, string.format("%d", i))
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end
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local logs = {}
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while buffer:hasLog() do
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local _, msg = buffer:getLog()
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table.insert(logs, msg)
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end
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assert.is_same({"2", "3", "5", "6", "8", "9", "11", "12", "13", "14"}, logs)
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end)
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it("should limit the message length to avoid blocked memory", function()
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local buffer = require "src.my-log-buffer"
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local input = ""
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for _=1,10 do
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input = input .. "1234567890"
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end
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buffer:addLog(buffer.INFO, input)
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local _, msg = buffer:getLog()
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assert.is_same(80, msg:len())
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end)
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end)
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