-- systemd_test.lua
-- Runs unit tests against the systemd filtering code from systemd.lua
-- requires 2 arguments 
--   1. a path to the test library:    e.g.: /Users/ur1337/edge-infra/third_party/lua/simple_test/src
--   2. a path to the test target dir: e.g.: /Users/ur1337/edge-infra/pkg/edge/logging/fluentbit

local test_library = arg[1] .. "/?.lua"
local target_dir = arg[2] .. "/?.lua"
local test_data = arg[2] .. "/testdata"

-- the test library and target directory need to be added to package.path so we can 'require' them
package.path = package.path .. ";" .. test_library .. ";" .. target_dir .. ";" .. test_data

local test = require("simple_test.init")
local systemd = require("systemd")


local recordTest = {
    ["message"] = {
        ["message"] = "first message",
    },
    ["PRIORITY"] = "6",
}

local recordTest2 = {
    ["message"] = {
        ["message"] = "second message",
    },
}

local systemd_test_cases = {
    {
        description = "systemd should return info",
        tag = nil,
        timestamp = "2023-09-22T18:03:22.695739473Z",
        record = recordTest,
        assert_sev = function(t,result) t.equal(result, "INFO") end,
        assert_tag = function(t,result) t.equal(result, 2) end
    },
    {
        description = "systemd should return default",
        tag = nil,
        timestamp = "2023-09-22T18:03:22.695739473Z",
        record = recordTest2,
        assert_sev = function(t,result) t.equal(result, "DEFAULT") end,
        assert_tag = function(t,result) t.equal(result, 2) end
    }
}
print("--------------------------")
print("systemd_test_cases started")
print("--------------------------")
for _, test_case in ipairs(systemd_test_cases) do
    test(test_case.description, function(t)
        local returnCode, timeResult, recordResult = systemd.format_log_level(test_case.tag, test_case.timestamp,test_case.record)
        local severity = recordResult["severity"]
        test_case.assert_sev(t, severity)
        test_case.assert_tag(t, returnCode)
    end)
end