107 lines
2.6 KiB
Lua
107 lines
2.6 KiB
Lua
local ln = require "ln"
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describe("ln", function()
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describe("exports", function()
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it("has Logger", function()
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assert.truthy(ln.Logger)
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end)
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it("has default_logger", function()
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assert.truthy(ln.default_logger)
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assert.truthy(ln.default_logger.formatter)
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assert.truthy(ln.default_logger.filters)
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end)
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it("has LogfmtFormatter", function()
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assert.truthy(ln.LogfmtFormatter)
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end)
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it("has JSONFormatter", function()
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assert.truthy(ln.JSONFormatter)
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end)
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it("has log", function()
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assert.truthy(ln.log)
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end)
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it("has err", function()
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assert.truthy(ln.err)
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end)
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end)
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describe("default logger operations", function()
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local lgr = ln.default_logger
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local msg
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lgr.filters = {
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function(message) msg = message end,
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}
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it("can log", function()
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lgr:log {foo = "bar"}
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assert.truthy(string.find(msg, 'foo=bar'))
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end)
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it("can error", function()
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lgr:err("vibe check failed", {foo = "baz"})
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assert.truthy(string.find(msg, 'foo=baz'))
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assert.truthy(string.find(msg, 'vibe check failed'))
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end)
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it("takes multiple tables", function()
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lgr:log({foo = "bar"}, {baz = "boz"})
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assert.truthy(string.find(msg, 'foo=bar'))
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assert.truthy(string.find(msg, 'baz=boz'))
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end)
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it("lets you override the formatter", function()
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lgr.formatter = ln.JSONFormatter:new()
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lgr:log {foo = "bar"}
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assert.truthy(string.find(msg, "{"))
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end)
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end)
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describe("logfmt", function()
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local fmtr = ln.LogfmtFormatter:new()
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it("should return a non-nil message", function()
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assert.truthy(fmtr:format({foo = "bar"}))
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end)
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it("should have spaces when the input does", function()
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local msg = fmtr:format {foo = "bar with spaces"}
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assert.truthy(string.find(msg, 'foo="bar with spaces"'))
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end)
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end)
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describe("logger options", function()
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local msg
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local filter_func = function(message) msg = message end
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local lgr = ln.Logger:new {
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formatter = ln.LogfmtFormatter:new(),
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filters = {
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filter_func,
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}
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}
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it("sets the formatter to non-nil", function()
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assert.truthy(lgr.formatter)
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end)
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it("respects filters", function()
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lgr:log {foo = "bar"}
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assert.truthy(string.find(msg, 'foo=bar'))
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end)
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it("ends if a filter returns non-nil", function()
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msg = nil
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lgr.filters = {
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function(message) return false end,
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filter_func,
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}
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lgr:log {foo = "bar"}
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assert.falsy(msg)
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end)
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end)
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end)
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