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99 lines
3.2 KiB
99 lines
3.2 KiB
4 years ago
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"use strict";
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function consoleLogIsCalledBy(log, methodName) {
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it(methodName + " calls console.log", function() {
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log.setLevel(log.levels.TRACE);
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log[methodName]("Log message for call to " + methodName);
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expect(console.log.calls.length).toEqual(1);
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});
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}
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function mockConsole() {
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return {"log" : jasmine.createSpy("console.log")};
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}
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define(['../lib/loglevel'], function(log) {
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var originalConsole = window.console;
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describe("Fallback functionality:", function() {
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describe("with no console present", function() {
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beforeEach(function() {
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window.console = undefined;
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});
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afterEach(function() {
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window.console = originalConsole;
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});
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it("silent method calls are allowed", function() {
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var result = log.setLevel(log.levels.SILENT);
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log.trace("hello");
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expect(result).toBeUndefined();
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});
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it("setting an active level gently returns an error string", function() {
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var result = log.setLevel(log.levels.TRACE);
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expect(result).toEqual("No console available for logging");
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});
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it("active method calls are allowed, once the active setLevel fails", function() {
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log.setLevel(log.levels.TRACE);
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log.trace("hello");
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});
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describe("if a console later appears", function () {
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it("logging is re-enabled and works correctly when next used", function () {
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log.setLevel(log.levels.WARN);
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window.console = mockConsole();
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log.error("error");
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expect(window.console.log).toHaveBeenCalled();
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});
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it("logging is re-enabled but does nothing when used at a blocked level", function () {
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log.setLevel(log.levels.WARN);
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window.console = mockConsole();
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log.trace("trace");
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expect(window.console.log).not.toHaveBeenCalled();
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});
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it("changing level works correctly from that point", function () {
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window.console = mockConsole();
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var result = log.setLevel(log.levels.WARN);
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expect(result).toBeUndefined();
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});
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});
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});
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describe("with a console that only supports console.log", function() {
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beforeEach(function() {
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window.console = mockConsole();
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});
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afterEach(function() {
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window.console = originalConsole;
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});
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it("log can be set to silent", function() {
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log.setLevel(log.levels.SILENT);
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});
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it("log can be set to an active level", function() {
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log.setLevel(log.levels.ERROR);
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});
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consoleLogIsCalledBy(log, "trace");
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consoleLogIsCalledBy(log, "debug");
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consoleLogIsCalledBy(log, "info");
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consoleLogIsCalledBy(log, "warn");
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consoleLogIsCalledBy(log, "trace");
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});
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});
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});
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