init

tests/lib/cli.test.ts

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+import { describe, it, expect } from "vitest"
+import { CLICommand } from "../../lib/cli/CLICommand"
+
+class TestLeafCommand extends CLICommand {
+  readonly name = "leaf"
+  readonly help = "A leaf command"
+  readonly description = "Test leaf"
+
+  async execute(): Promise<number> {
+    return 42
+  }
+}
+
+class TestChildA extends CLICommand {
+  readonly name = "child-a"
+  readonly help = "Child A"
+  readonly description = "Test child A"
+}
+
+class TestChildB extends CLICommand {
+  readonly name = "child-b"
+  readonly help = "Child B"
+  readonly description = "Test child B"
+}
+
+class TestBranchCommand extends CLICommand {
+  readonly name = "branch"
+  readonly help = "A branch command"
+  readonly description = "Test branch"
+
+  static override _subcommands = [TestChildA, TestChildB]
+}
+
+describe("CLICommand", () => {
+  it("leaf command returns exit code from execute()", async () => {
+    const cmd = new TestLeafCommand()
+    expect(await cmd.execute({}  as any)).toBe(42)
+  })
+
+  it("branch command has subcommands", () => {
+    expect(TestBranchCommand._subcommands).toHaveLength(2)
+    expect(new TestBranchCommand().name).toBe("branch")
+  })
+
+  it("base CLICommand.execute returns 0", async () => {
+    const cmd = new TestChildA()
+    expect(await cmd.execute({} as any)).toBe(0)
+  })
+
+  it("subcommands are constructable", () => {
+    for (const Sub of TestBranchCommand._subcommands) {
+      const instance = new Sub()
+      expect(instance.name).toBeTruthy()
+      expect(instance.help).toBeTruthy()
+    }
+  })
+})