add missing util tests and remove dead util methods

lib/6to5/util.js

@@ -58,12 +58,6 @@ exports.errorWithNode = function (node, msg) {
   return err;
 };
 
-exports.camelCase = function (value) {
-  return value.replace(/[-_\s]+(.)?/g, function (match, c) {
-    return c ? c.toUpperCase() : "";
-  });
-};
-
 exports.canCompile = function (filename) {
   var ext = path.extname(filename);
   return _.contains([".js", ".es6", ".jsx"], ext);

test/util.js

@@ -14,7 +14,7 @@ suite("util", function () {
     }, /a get already exists for this property/);
   });
 
-  test("can compile", function () {
+  test("canCompile", function () {
     assert.ok(util.canCompile("test.js"));
     assert.ok(util.canCompile("/test.js"));
     assert.ok(util.canCompile("/scripts/test.js"));
@@ -28,4 +28,18 @@ suite("util", function () {
     assert.ok(!util.canCompile("/test.css"));
     assert.ok(!util.canCompile("/scripts/test.css"));
   });
+
+  test("isAbsolute", function () {
+    assert.ok(util.isAbsolute("/test.js"));
+    assert.ok(util.isAbsolute("C:\\test.js"));
+
+    assert.ok(!util.isAbsolute("test.js"));
+    assert.ok(!util.isAbsolute("test/test.js"));
+  });
+
+  test("invalid template", function () {
+    assert.throws(function () {
+      util.template("invalid template");
+    }, /unknown template/);
+  });
 });