Add reader factory, improve tests

source/documents/scripts/reader/_factory.js.coffee

@@ -0,0 +1,11 @@
+angular.module("sideBySide").factory("readerFactory", ($injector) ->
+	return (filename) ->
+		extension = filename.split(".").pop()
+		switch extension
+			when "json"
+				return $injector.get("jsonReader")
+			when "md", "markdown"
+				return $injector.get("markdownReader")
+			else
+				throw "Unknown extension '" + extension + "'."
+)

source/documents/scripts/tests/_setup.js.coffee

@@ -0,0 +1,8 @@
+this.injector = angular.injector(['ng', 'sideBySide'])
+
+init = {
+	setup: () ->
+		this.$scope = injector.get('$rootScope').$new();
+}
+
+this.module('tests', init);

source/documents/scripts/tests/reader/_abstract.js.coffee

@@ -1,5 +1,4 @@
 this.testReader = (name, testCases) ->
-	injector = angular.injector(["ng", "sideBySide"])
 	reader = injector.get(name)
 
 	for testCase in testCases

source/documents/scripts/tests/reader/_factory.js.coffee

@@ -0,0 +1,9 @@
+test("readerFactory", () ->
+	factory = injector.get("readerFactory")
+
+	ok(factory("somefile.md"))
+	ok(factory("otherfile.json"))
+	throws(() ->
+		factory("microsoft.doc")
+	, /unknown/i)
+)