fix(plugin-help): should display root commands in alias correctly

Author: so1ve

packages/plugin-help/src/renderer.ts

@@ -288,7 +288,7 @@ export class HelpRenderer {
         formatCommandName(command.name.slice(prefix.length)),
       );
       const aliases = command.alias
-        ? ` (${toArray(command.alias).join(", ")})`
+        ? ` (${toArray(command.alias).map(formatCommandName).join(", ")})`
         : "";
       const item = [`${commandName}${aliases}`, command.description].filter(
         isTruthy,

packages/plugin-help/test/__snapshots__/plugin-help.test.ts.snap

@@ -1,5 +1,88 @@
 // Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
 
+exports[`plugin-help > alias > should show alias for subcommands 1`] = `
+[
+  [
+    "test parent not found
+
+Available Subcommands
+  child (c)  Child command",
+  ],
+]
+`;
+
+exports[`plugin-help > alias > should show array of aliases 1`] = `
+[
+  [
+    "test v0.0.0 - test
+
+Usage
+  $ test <command> [flags]
+
+Global Flags
+  --help, -h  Boolean  Show help  [default: false]
+
+Commands
+  help                Show help
+  test (t, test-cmd)  Test command",
+  ],
+]
+`;
+
+exports[`plugin-help > alias > should show root alias (empty string in array) 1`] = `
+[
+  [
+    "test v0.0.0 - test
+
+Usage
+  $ test [command] [flags]
+
+Global Flags
+  --help, -h  Boolean  Show help  [default: false]
+
+Commands
+  help              Show help
+  test (t, (root))  Test command",
+  ],
+]
+`;
+
+exports[`plugin-help > alias > should show root alias (empty string) 1`] = `
+[
+  [
+    "test v0.0.0 - test
+
+Usage
+  $ test [command] [flags]
+
+Global Flags
+  --help, -h  Boolean  Show help  [default: false]
+
+Commands
+  help  Show help
+  test  Test command",
+  ],
+]
+`;
+
+exports[`plugin-help > alias > should show single string alias 1`] = `
+[
+  [
+    "test v0.0.0 - test
+
+Usage
+  $ test <command> [flags]
+
+Global Flags
+  --help, -h  Boolean  Show help  [default: false]
+
+Commands
+  help      Show help
+  test (t)  Test command",
+  ],
+]
+`;
+
 exports[`plugin-help > grouping > should display subcommands 1`] = `
 [
   [

packages/plugin-help/test/plugin-help.test.ts

@@ -670,4 +670,61 @@ describe("plugin-help", () => {
       expect(getConsoleMock("log").mock.calls).toMatchSnapshot();
     });
   });
+
+  describe("alias", () => {
+    it("should show single string alias", () => {
+      TestBaseCli()
+        .use(helpPlugin())
+        .command("test", "Test command", {
+          alias: "t",
+        })
+        .parse(["help"]);
+
+      expect(getConsoleMock("log").mock.calls).toMatchSnapshot();
+    });
+
+    it("should show array of aliases", () => {
+      TestBaseCli()
+        .use(helpPlugin())
+        .command("test", "Test command", {
+          alias: ["t", "test-cmd"],
+        })
+        .parse(["help"]);
+
+      expect(getConsoleMock("log").mock.calls).toMatchSnapshot();
+    });
+
+    it("should show root alias (empty string)", () => {
+      TestBaseCli()
+        .use(helpPlugin())
+        .command("test", "Test command", {
+          alias: "",
+        })
+        .parse(["help"]);
+
+      expect(getConsoleMock("log").mock.calls).toMatchSnapshot();
+    });
+
+    it("should show root alias (empty string in array)", () => {
+      TestBaseCli()
+        .use(helpPlugin())
+        .command("test", "Test command", {
+          alias: ["t", ""],
+        })
+        .parse(["help"]);
+
+      expect(getConsoleMock("log").mock.calls).toMatchSnapshot();
+    });
+
+    it("should show alias for subcommands", () => {
+      TestBaseCli()
+        .use(helpPlugin())
+        .command("parent child", "Child command", {
+          alias: "c",
+        })
+        .parse(["parent", "--help"]);
+
+      expect(getConsoleMock("log").mock.calls).toMatchSnapshot();
+    });
+  });
 });