1 files changed, 98 insertions, 0 deletions
diff --git a/includes/external/matrix/node_modules/loglevel/test/console-fallback-test.js b/includes/external/matrix/node_modules/loglevel/test/console-fallback-test.js
new file mode 100644
index 0000000..58fda9d
--- /dev/null
+++ b/includes/external/matrix/node_modules/loglevel/test/console-fallback-test.js
@@ -0,0 +1,98 @@
+"use strict";
+
+function consoleLogIsCalledBy(log, methodName) {
+    it(methodName + " calls console.log", function() {
+        log.setLevel(log.levels.TRACE);
+        log[methodName]("Log message for call to " + methodName);
+        expect(console.log.calls.length).toEqual(1);
+    });
+}
+
+function mockConsole() {
+    return {"log" : jasmine.createSpy("console.log")};
+}
+
+define(['../lib/loglevel'], function(log) {
+    var originalConsole = window.console;
+
+    describe("Fallback functionality:", function() {
+        describe("with no console present", function() {
+            beforeEach(function() {
+                window.console = undefined;
+            });
+
+            afterEach(function() {
+                window.console = originalConsole;
+            });
+
+            it("silent method calls are allowed", function() {
+                var result = log.setLevel(log.levels.SILENT);
+                log.trace("hello");
+
+                expect(result).toBeUndefined();
+            });
+
+            it("setting an active level gently returns an error string", function() {
+                var result = log.setLevel(log.levels.TRACE);
+                expect(result).toEqual("No console available for logging");
+            });
+
+            it("active method calls are allowed, once the active setLevel fails", function() {
+                log.setLevel(log.levels.TRACE);
+                log.trace("hello");
+            });
+
+            describe("if a console later appears", function () {
+                it("logging is re-enabled and works correctly when next used", function () {
+                    log.setLevel(log.levels.WARN);
+
+                    window.console = mockConsole();
+                    log.error("error");
+
+                    expect(window.console.log).toHaveBeenCalled();
+                });
+
+                it("logging is re-enabled but does nothing when used at a blocked level", function () {
+                    log.setLevel(log.levels.WARN);
+
+                    window.console = mockConsole();
+                    log.trace("trace");
+
+                    expect(window.console.log).not.toHaveBeenCalled();
+                });
+
+                it("changing level works correctly from that point", function () {
+                    window.console = mockConsole();
+                    var result = log.setLevel(log.levels.WARN);
+
+                    expect(result).toBeUndefined();
+                });
+            });
+        });
+
+        describe("with a console that only supports console.log", function() {
+            beforeEach(function() {
+                window.console = mockConsole();
+            });
+
+            afterEach(function() {
+                window.console = originalConsole;
+            });
+
+            it("log can be set to silent", function() {
+                log.setLevel(log.levels.SILENT);
+            });
+
+            it("log can be set to an active level", function() {
+                log.setLevel(log.levels.ERROR);
+            });
+
+            consoleLogIsCalledBy(log, "trace");
+            consoleLogIsCalledBy(log, "debug");
+            consoleLogIsCalledBy(log, "info");
+            consoleLogIsCalledBy(log, "warn");
+            consoleLogIsCalledBy(log, "trace");
+        });
+    });
+});
+