isCodeFile()のテストコードを追加

Author: MijinkoSD

browser/websocket/updateCodeFile.test.ts

@@ -0,0 +1,29 @@
+/// <reference lib="deno.ns" />
+
+import { assert, assertFalse } from "../../deps/testing.ts";
+import { CodeFile, isCodeFile } from "./updateCodeFile.ts";
+
+const codeFile: CodeFile = {
+  filename: "filename",
+  content: ["line 0", "line 1"],
+  lang: "language",
+};
+
+Deno.test("isCodeFile()", async (t) => {
+  await t.step("CodeFile object", () => {
+    assert(isCodeFile(codeFile));
+    assert(isCodeFile({ ...codeFile, content: "line 0" }));
+    assert(isCodeFile({ ...codeFile, lang: undefined }));
+  });
+  await t.step("similer objects", () => {
+    assertFalse(isCodeFile({ ...codeFile, filename: 10 }));
+    assertFalse(isCodeFile({ ...codeFile, content: 10 }));
+    assertFalse(isCodeFile({ ...codeFile, content: [0, 1] }));
+    assertFalse(isCodeFile({ ...codeFile, lang: 10 }));
+  });
+  await t.step("other type values", () => {
+    assertFalse(isCodeFile(10));
+    assertFalse(isCodeFile(undefined));
+    assertFalse(isCodeFile(["0", "1", "2"]));
+  });
+});