test: add exec helper coverage

src/infra/shell-inline-command.test.ts

@@ -0,0 +1,65 @@
+import { describe, expect, it } from "vitest";
+import {
+  POSIX_INLINE_COMMAND_FLAGS,
+  POWERSHELL_INLINE_COMMAND_FLAGS,
+  resolveInlineCommandMatch,
+} from "./shell-inline-command.js";
+
+describe("resolveInlineCommandMatch", () => {
+  it("extracts the next token for exact inline-command flags", () => {
+    expect(
+      resolveInlineCommandMatch(["bash", "-lc", "echo hi"], POSIX_INLINE_COMMAND_FLAGS),
+    ).toEqual({
+      command: "echo hi",
+      valueTokenIndex: 2,
+    });
+    expect(
+      resolveInlineCommandMatch(
+        ["pwsh", "-Command", "Get-ChildItem"],
+        POWERSHELL_INLINE_COMMAND_FLAGS,
+      ),
+    ).toEqual({
+      command: "Get-ChildItem",
+      valueTokenIndex: 2,
+    });
+  });
+
+  it("supports combined -c forms only when enabled", () => {
+    expect(
+      resolveInlineCommandMatch(["sh", "-cecho hi"], POSIX_INLINE_COMMAND_FLAGS, {
+        allowCombinedC: true,
+      }),
+    ).toEqual({
+      command: "echo hi",
+      valueTokenIndex: 1,
+    });
+    expect(
+      resolveInlineCommandMatch(["sh", "-cecho hi"], POSIX_INLINE_COMMAND_FLAGS, {
+        allowCombinedC: false,
+      }),
+    ).toEqual({
+      command: null,
+      valueTokenIndex: null,
+    });
+  });
+
+  it("returns a value index even when the flag is present without a usable command", () => {
+    expect(resolveInlineCommandMatch(["bash", "-lc", "   "], POSIX_INLINE_COMMAND_FLAGS)).toEqual({
+      command: null,
+      valueTokenIndex: 2,
+    });
+    expect(resolveInlineCommandMatch(["bash", "-lc"], POSIX_INLINE_COMMAND_FLAGS)).toEqual({
+      command: null,
+      valueTokenIndex: null,
+    });
+  });
+
+  it("stops parsing after --", () => {
+    expect(
+      resolveInlineCommandMatch(["bash", "--", "-lc", "echo hi"], POSIX_INLINE_COMMAND_FLAGS),
+    ).toEqual({
+      command: null,
+      valueTokenIndex: null,
+    });
+  });
+});