extractFromCodeTitle()のテストコードを追加

Author: MijinkoSD

browser/websocket/__snapshots__/_codeBlock.test.ts.snap

@@ -0,0 +1,57 @@
+export const snapshot = {};
+
+snapshot[`extractFromCodeTitle() > accurate titles > "code:foo.extA(extB)" 1`] = `
+{
+  filename: "foo.extA",
+  indent: 0,
+  lang: "extB",
+}
+`;
+
+snapshot[`extractFromCodeTitle() > accurate titles > " code:foo.extA(extB)" 1`] = `
+{
+  filename: "foo.extA",
+  indent: 1,
+  lang: "extB",
+}
+`;
+
+snapshot[`extractFromCodeTitle() > accurate titles > "  code: foo.extA (extB)" 1`] = `
+{
+  filename: "foo.extA",
+  indent: 2,
+  lang: "extB",
+}
+`;
+
+snapshot[`extractFromCodeTitle() > accurate titles > "  code: foo (extB) " 1`] = `
+{
+  filename: "foo",
+  indent: 2,
+  lang: "extB",
+}
+`;
+
+snapshot[`extractFromCodeTitle() > accurate titles > "  code: foo.extA " 1`] = `
+{
+  filename: "foo.extA",
+  indent: 2,
+  lang: "extA",
+}
+`;
+
+snapshot[`extractFromCodeTitle() > accurate titles > "  code: foo " 1`] = `
+{
+  filename: "foo",
+  indent: 2,
+  lang: "foo",
+}
+`;
+
+snapshot[`extractFromCodeTitle() > accurate titles > "  code: .foo " 1`] = `
+{
+  filename: ".foo",
+  indent: 2,
+  lang: ".foo",
+}
+`;

browser/websocket/_codeBlock.test.ts

@@ -0,0 +1,36 @@
+/// <reference lib="deno.ns" />
+
+import { assertEquals, assertSnapshot } from "../../deps/testing.ts";
+import { extractFromCodeTitle } from "./_codeBlock.ts";
+
+Deno.test("extractFromCodeTitle()", async (t) => {
+  await t.step("accurate titles", async (st) => {
+    const titles = [
+      "code:foo.extA(extB)",
+      " code:foo.extA(extB)",
+      "  code: foo.extA (extB)",
+      "  code: foo (extB) ",
+      "  code: foo.extA ",
+      "  code: foo ",
+      "  code: .foo ",
+    ];
+    for (const title of titles) {
+      await st.step(`"${title}"`, async (sst) => {
+        await assertSnapshot(sst, extractFromCodeTitle(title));
+      });
+    }
+  });
+
+  await t.step("inaccurate titles", async (st) => {
+    const nonTitles = [
+      "  code: foo. ", // コードブロックにはならないので`null`が正常
+      "any:code: foo ",
+      " I'm not code block ",
+    ];
+    for (const title of nonTitles) {
+      await st.step(`"${title}"`, async () => {
+        await assertEquals(null, extractFromCodeTitle(title));
+      });
+    }
+  });
+});