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test/unit/encodings_spec.js

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+/* Copyright 2017 Mozilla Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { getEncoding } from "../../src/core/encodings.js";
+
+describe("encodings", function () {
+  describe("getEncoding", function () {
+    it("fetches a valid array for known encoding names", function () {
+      const knownEncodingNames = [
+        "ExpertEncoding",
+        "MacExpertEncoding",
+        "MacRomanEncoding",
+        "StandardEncoding",
+        "SymbolSetEncoding",
+        "WinAnsiEncoding",
+        "ZapfDingbatsEncoding",
+      ];
+
+      for (const knownEncodingName of knownEncodingNames) {
+        const encoding = getEncoding(knownEncodingName);
+        expect(Array.isArray(encoding)).toEqual(true);
+        expect(encoding.length).toEqual(256);
+
+        for (const item of encoding) {
+          expect(typeof item).toEqual("string");
+        }
+      }
+    });
+
+    it("fetches `null` for unknown encoding names", function () {
+      expect(getEncoding("FooBarEncoding")).toEqual(null);
+    });
+  });
+});