98 lines
2.9 KiB
Lua
98 lines
2.9 KiB
Lua
local original_ngx = ngx
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local function reset_ngx()
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_G.ngx = original_ngx
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end
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local function mock_ngx(mock)
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local _ngx = mock
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setmetatable(_ngx, { __index = ngx })
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_G.ngx = _ngx
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end
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describe("lua_ngx_var", function()
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local util = require("util")
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after_each(function()
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reset_ngx()
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end)
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describe("lua_ngx_var", function()
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before_each(function()
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mock_ngx({ var = { remote_addr = "192.168.1.1", [1] = "nginx/regexp/1/group/capturing" } })
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end)
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it("returns value of nginx var by key", function()
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assert.equal("192.168.1.1", util.lua_ngx_var("$remote_addr"))
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end)
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it("returns value of nginx var when key is number", function()
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assert.equal("nginx/regexp/1/group/capturing", util.lua_ngx_var("$1"))
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end)
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it("returns nil when variable is not defined", function()
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assert.equal(nil, util.lua_ngx_var("$foo_bar"))
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end)
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end)
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describe("diff_endpoints", function()
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it("returns removed and added endpoints", function()
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local old = {
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{ address = "10.10.10.1", port = "8080" },
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{ address = "10.10.10.2", port = "8080" },
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{ address = "10.10.10.3", port = "8080" },
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}
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local new = {
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{ address = "10.10.10.1", port = "8080" },
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{ address = "10.10.10.2", port = "8081" },
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{ address = "11.10.10.2", port = "8080" },
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{ address = "11.10.10.3", port = "8080" },
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}
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local expected_added = { "10.10.10.2:8081", "11.10.10.2:8080", "11.10.10.3:8080" }
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table.sort(expected_added)
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local expected_removed = { "10.10.10.2:8080", "10.10.10.3:8080" }
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table.sort(expected_removed)
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local added, removed = util.diff_endpoints(old, new)
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table.sort(added)
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table.sort(removed)
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assert.are.same(expected_added, added)
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assert.are.same(expected_removed, removed)
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end)
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it("returns empty results for empty inputs", function()
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local added, removed = util.diff_endpoints({}, {})
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assert.are.same({}, added)
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assert.are.same({}, removed)
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end)
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it("returns empty results for same inputs", function()
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local old = {
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{ address = "10.10.10.1", port = "8080" },
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{ address = "10.10.10.2", port = "8080" },
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{ address = "10.10.10.3", port = "8080" },
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}
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local new = util.deepcopy(old)
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local added, removed = util.diff_endpoints(old, new)
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assert.are.same({}, added)
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assert.are.same({}, removed)
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end)
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it("handles endpoints with nil attribute", function()
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local old = {
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{ address = nil, port = "8080" },
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{ address = "10.10.10.2", port = "8080" },
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{ address = "10.10.10.3", port = "8080" },
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}
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local new = util.deepcopy(old)
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new[2].port = nil
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local added, removed = util.diff_endpoints(old, new)
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assert.are.same({ "10.10.10.2:nil" }, added)
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assert.are.same({ "10.10.10.2:8080" }, removed)
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end)
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end)
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end)
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