describe("luadata module", function() local Settings, lfs setup(function() require("commonrequire") lfs = require("libs/libkoreader-lfs") Settings = require("frontend/luadata"):open("this-is-not-a-valid-file") end) it("should handle undefined keys", function() Settings:delSetting("abc") assert.True(Settings:hasNot("abc")) assert.True(Settings:nilOrTrue("abc")) assert.False(Settings:isTrue("abc")) Settings:saveSetting("abc", true) assert.True(Settings:has("abc")) assert.True(Settings:nilOrTrue("abc")) assert.True(Settings:isTrue("abc")) end) it("should flip bool values", function() Settings:delSetting("abc") assert.True(Settings:hasNot("abc")) Settings:flipNilOrTrue("abc") assert.False(Settings:nilOrTrue("abc")) assert.True(Settings:has("abc")) assert.False(Settings:isTrue("abc")) Settings:flipNilOrTrue("abc") assert.True(Settings:nilOrTrue("abc")) assert.True(Settings:hasNot("abc")) assert.False(Settings:isTrue("abc")) Settings:flipTrue("abc") assert.True(Settings:has("abc")) assert.True(Settings:isTrue("abc")) assert.True(Settings:nilOrTrue("abc")) Settings:flipTrue("abc") assert.False(Settings:has("abc")) assert.False(Settings:isTrue("abc")) assert.True(Settings:nilOrTrue("abc")) end) it("should create child settings", function() Settings:delSetting("key") Settings:saveSetting("key", { a = "b", c = "True", d = false, }) local child = Settings:child("key") assert.is_not_nil(child) assert.True(child:has("a")) assert.are.equal(child:readSetting("a"), "b") assert.True(child:has("c")) assert.False(child:isTrue("c")) -- It's a string, not a bool! assert.True(child:has("d")) assert.True(child:isFalse("d")) assert.False(child:isTrue("e")) child:flipTrue("e") child:close() child = Settings:child("key") assert.True(child:isTrue("e")) end) describe("table wrapper", function() Settings:delSetting("key") it("should add item to table", function() Settings:addTableItem("key", 1) Settings:addTableItem("key", 2) Settings:addTableItem("key", 3) assert.are.equal(1, Settings:readSetting("key")[1]) assert.are.equal(2, Settings:readSetting("key")[2]) assert.are.equal(3, Settings:readSetting("key")[3]) end) it("should remove item from table", function() Settings:removeTableItem("key", 1) assert.are.equal(2, Settings:readSetting("key")[1]) assert.are.equal(3, Settings:readSetting("key")[2]) end) end) describe("backup data file", function() local file = "dummy-test-file" local d = Settings:open(file) it("should generate data file", function() d:saveSetting("a", "a") assert.Equals("file", lfs.attributes(d.file, "mode")) end) it("should generate backup data file on flush", function() d:flush() -- file and file.old.1 should be generated. assert.Equals("file", lfs.attributes(d.file, "mode")) assert.Equals("file", lfs.attributes(d.file .. ".old.1", "mode")) d:close() end) it("should remove garbage data file", function() -- write some garbage to sidecar-file. local f_out = io.open(d.file, "w") f_out:write("bla bla bla") f_out:close() d = Settings:open(file) -- file should be removed. assert.are.not_equal("file", lfs.attributes(d.file, "mode")) assert.Equals("file", lfs.attributes(d.file .. ".old.2", "mode")) assert.Equals("a", d:readSetting("a")) d:saveSetting("a", "b") d:close() -- backup should be generated. assert.Equals("file", lfs.attributes(d.file, "mode")) assert.Equals("file", lfs.attributes(d.file .. ".old.1", "mode")) -- The contents in file and file.old.1 are different. -- a:b v.s. a:a end) it("should open backup data file after garbage removal", function() d = Settings:open(file) -- We should get the right result. assert.Equals("b", d:readSetting("a")) -- write some garbage to file. local f_out = io.open(d.file, "w") f_out:write("bla bla bla") f_out:close() -- do not flush the result, open docsettings again. d = Settings:open(file) -- data file should be removed. assert.are.not_equal("file", lfs.attributes(d.file, "mode")) assert.Equals("file", lfs.attributes(d.file .. ".old.2", "mode")) -- The content should come from file.old.2. assert.Equals("a", d:readSetting("a")) d:close() -- data file should be generated and last good backup should not change name. assert.Equals("file", lfs.attributes(d.file, "mode")) assert.Equals("file", lfs.attributes(d.file .. ".old.2", "mode")) end) end) end)