Add unit tests for matfaust.lazylinop.diag.

misc/test/src/Matlab/LazyLinearOpDiagTest.m

+classdef LazyLinearOpDiagTest < LazyLinearOpTest
+
+	properties (Constant = true)
+        %
+	end
+
+	methods(TestClassSetup)
+	end
+
+    methods (TestMethodSetup)
+
+        function addFaustToPath(this)
+			addpath(this.faust_paths{:})
+        	set_path
+		end
+
+		function instantiateTestFaust(this)
+            import matfaust.lazylinop.aslazylinearoperator
+            import matfaust.lazylinop.diag
+            v = rand(10, 1);
+            w = rand(10, 1);
+			this.lop = diag(v, -2);
+			this.lop2 = diag(v, 2);
+            this.lopA = full(this.lop);
+            this.lop2A = full(this.lop2);
+			this.lop3 = diag(w, 2);
+            this.lop3A = full(this.lop3);
+		end
+    end
+
+	methods(TestMethodTeardown)
+
+	end
+
+end