diff --git a/lisp/_prepare.el b/lisp/_prepare.el
index a929a421..ffd99226 100644
--- a/lisp/_prepare.el
+++ b/lisp/_prepare.el
@@ -1432,7 +1432,29 @@ This uses function `locate-dominating-file' to look up directory tree."
                  (ignore-errors (make-directory package-user-dir t))
                  (eask--silent (eask-setup-paths))
                  (eask-with-verbosity 'debug (eask--load-config))
-                 (eask--with-hooks ,@body))))))))))
+                 (eask--with-hooks ,@body))))))
+         ;; Report exit stats if any.
+         (eask--handle-exit-status)))))
+
+(defun eask--error-status ()
+  "Return error status."
+  (let ((result))
+    ;; Error.
+    (when eask--has-error-p
+      (push 'error result))
+    ;; Warning.
+    (when eask--has-warn-p
+      (push (if (eask-strict-p)
+                'error
+              'warn)
+            result))
+    ;; No repeat.
+    (delete-dups result)))
+
+(defun eask--handle-exit-status ()
+  "Return non-nil if we should report error for exit status."
+  (when (memq 'error (eask--error-status))
+    (eask--exit 'failure)))
 
 ;;
 ;;; Eask file
@@ -2000,7 +2022,7 @@ Argument ARGS are direct arguments for functions `eask-error' or `eask-warn'."
   "On error.
 
 Arguments FNC and ARGS are used for advice `:around'."
-  (setq eask--has-error-p t)
+  (setq eask--has-error-p t)  ; Just a record.
   (let ((msg (eask--ansi 'error (apply #'format-message args))))
     (unless eask-inhibit-error-message
       (eask--unsilent (eask-msg "%s" msg)))
@@ -2012,7 +2034,7 @@ Arguments FNC and ARGS are used for advice `:around'."
   "On warn.
 
 Arguments FNC and ARGS are used for advice `:around'."
-  (setq eask--has-warn-p t)
+  (setq eask--has-warn-p t)  ; Just a record.
   (let ((msg (eask--ansi 'warn (apply #'format-message args))))
     (unless eask-inhibit-error-message
       (eask--unsilent (eask-msg "%s" msg)))
diff --git a/lisp/lint/elint.el b/lisp/lint/elint.el
index 278f4815..ede7f7a9 100644
--- a/lisp/lint/elint.el
+++ b/lisp/lint/elint.el
@@ -44,11 +44,6 @@
       (eask-print-log-buffer log-buffer)
       (kill-buffer log-buffer))))
 
-(defun eask-lint-elint--has-error-p ()
-  "Return non-nil if we should report error for exit status."
-  (and eask--has-warn-p
-       (eask-strict-p)))
-
 (eask-start
   (require 'elint)
   (let* ((patterns (eask-args))
@@ -62,10 +57,7 @@
       (eask-msg "")
       (eask-info "(Total of %s file%s %s checked)" (length files)
                  (eask--sinr files "" "s")
-                 (eask--sinr files "has" "have"))
-      ;; Report error.
-      (when (eask-lint-elint--has-error-p)
-        (eask--exit 'failure)))
+                 (eask--sinr files "has" "have")))
      ;; Pattern defined, but no file found!
      (patterns
       (eask-info "(No files match wildcard: %s)"
diff --git a/lisp/lint/elsa.el b/lisp/lint/elsa.el
index 21392432..69b0e107 100644
--- a/lisp/lint/elsa.el
+++ b/lisp/lint/elsa.el
@@ -60,12 +60,6 @@
                   (t (eask-log line)))))
       (eask-msg "No issues found"))))
 
-(defun eask-lint-elsa--has-error-p ()
-  "Return non-nil if we should report error for exit status."
-  (or eask--has-error-p
-      (and eask--has-warn-p
-           (eask-strict-p))))
-
 (eask-start
   ;; Preparation
   (eask-archive-install-packages '("gnu" "melpa")
@@ -85,10 +79,7 @@
       (mapcar #'eask-lint-elsa--analyse-file files)
       (eask-msg "")
       (eask-info "(Total of %s file%s linted)" (length files)
-                 (eask--sinr files "" "s"))
-      ;; Report error.
-      (when (eask-lint-elsa--has-error-p)
-        (eask--exit 'failure)))
+                 (eask--sinr files "" "s")))
      ;; Pattern defined, but no file found!
      (patterns
       (eask-msg "")
diff --git a/lisp/lint/package.el b/lisp/lint/package.el
index 9ba6d09b..676ddcdc 100644
--- a/lisp/lint/package.el
+++ b/lisp/lint/package.el
@@ -57,11 +57,6 @@
       (kill-current-buffer)))
   (eask-print-log-buffer "*Package-Lint*"))
 
-(defun eask-lint-package--has-error-p ()
-  "Return non-nil if we should report error for exit status."
-  (and eask--has-warn-p
-       (eask-strict-p)))
-
 (eask-start
   ;; Preparation
   (eask-archive-install-packages '("gnu" "melpa")
@@ -82,10 +77,7 @@
       (mapcar #'eask-lint-package--file files)
       (eask-msg "")
       (eask-info "(Total of %s file%s linted)" (length files)
-                 (eask--sinr files "" "s"))
-      ;; Report error.
-      (when (eask-lint-package--has-error-p)
-        (eask--exit 'failure)))
+                 (eask--sinr files "" "s")))
      ;; Pattern defined, but no file found!
      (patterns
       (eask-msg "")
diff --git a/lisp/lint/regexps.el b/lisp/lint/regexps.el
index 5818ef3d..dfddef4f 100644
--- a/lisp/lint/regexps.el
+++ b/lisp/lint/regexps.el
@@ -61,11 +61,6 @@
         (eask-msg "No issues found"))
       (kill-current-buffer))))
 
-(defun eask-lint-regexps--has-error-p ()
-  "Return non-nil if we should report error for exit status."
-  (and eask--has-warn-p
-       (eask-strict-p)))
-
 (eask-start
   ;; Preparation
   (eask-archive-install-packages '("gnu")
@@ -85,10 +80,7 @@
       (mapcar #'eask-lint-regexps--relint-file files)
       (eask-msg "")
       (eask-info "(Total of %s file%s linted)" (length files)
-                 (eask--sinr files "" "s"))
-      ;; Report error.
-      (when (eask-lint-regexps--has-error-p)
-        (eask--exit 'failure)))
+                 (eask--sinr files "" "s")))
      ;; Pattern defined, but no file found!
      (patterns
       (eask-msg "")
diff --git a/package-lock.json b/package-lock.json
index 820d4748..d1091a22 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,7 +17,8 @@
       },
       "devDependencies": {
         "@yao-pkg/pkg": "^6.0.0",
-        "jest": "^29.7.0"
+        "jest": "^29.7.0",
+        "semver-compare": "^1.0.0"
       }
     },
     "node_modules/@ampproject/remapping": {
@@ -4200,6 +4201,13 @@
         "node": ">=10"
       }
     },
+    "node_modules/semver-compare": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/semver-compare/-/semver-compare-1.0.0.tgz",
+      "integrity": "sha512-YM3/ITh2MJ5MtzaM429anh+x2jiLVjqILF4m4oyQB18W7Ggea7BfqdH/wGMK7dDiMghv/6WG7znWMwUDzJiXow==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/shebang-command": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",
diff --git a/package.json b/package.json
index b60de1c2..feb29fab 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,8 @@
   },
   "devDependencies": {
     "@yao-pkg/pkg": "^6.0.0",
-    "jest": "^29.7.0"
+    "jest": "^29.7.0",
+    "semver-compare": "^1.0.0"
   },
   "jest": {
     "rootDir": "./test/jest",
diff --git a/test/jest/exec.test.js b/test/jest/exec.test.js
index 2ff26bf3..4b1536d2 100644
--- a/test/jest/exec.test.js
+++ b/test/jest/exec.test.js
@@ -1,9 +1,15 @@
-const { TestContext } = require("./helpers");
+const cmp = require('semver-compare');
+const { emacsVersion, TestContext } = require("./helpers");
 
 describe("exec", () => {
   const ctx = new TestContext("./test/jest/exec");
 
-  beforeAll(async () => await ctx.runEask("install-deps"));
+  beforeAll(async () => {
+    await ctx.runEask(
+      "install-deps", { timeout: 40000 },
+      // See https://github.com/emacs-eask/cli/issues/11.
+      cmp(await emacsVersion(), "28.1") == -1);
+  });
 
   afterAll(() => ctx.cleanUp());
 
diff --git a/test/jest/helpers.js b/test/jest/helpers.js
index d23488af..60a36f42 100644
--- a/test/jest/helpers.js
+++ b/test/jest/helpers.js
@@ -157,8 +157,8 @@ class TestContext {
    * @param {any} config
    * @returns {Promise.<CommandOutput>}
    */
-  runEask(command, config) {
-    return this.run(this.easkCommand + " " + command, config);
+  runEask(command, config, safe = false) {
+    return this.run(this.easkCommand + " " + command, config, safe);
   }
 
   /**
@@ -170,7 +170,7 @@ class TestContext {
    * @param {any} config
    * @returns {Promise.<CommandOutput>}
    */
-  run(command, config) {
+  run(command, config, safe = false) {
     return exec(command, {
       cwd: this.cwd,
       signal: this.controller.signal,
@@ -188,7 +188,12 @@ class TestContext {
         return new CommandOutput(obj, this.cwd);
       })
       .catch((err) => {
-        if (!err.code) err.message += "\nexec: TIMEOUT";
+        if (safe)
+          return this.errorToCommandOutput(err);
+
+        if (!err.code)
+          err.message += "\nexec: TIMEOUT";
+
         throw err;
       });
   }
diff --git a/test/jest/install.test.js b/test/jest/install.test.js
index d7bd81d2..9abd3816 100644
--- a/test/jest/install.test.js
+++ b/test/jest/install.test.js
@@ -1,3 +1,4 @@
+const cmp = require('semver-compare');
 const { emacsVersion, TestContext } = require("./helpers");
 
 describe("install and uninstall", () => {
@@ -12,8 +13,12 @@ describe("install and uninstall", () => {
     afterAll(() => ctx.cleanUp());
 
     it("installs project package", async () => {
-      await ctx.runEask("package");  // creates dist/<pkg>.tar
-      await ctx.runEask("install");  // installs dependencies and generated package
+      // creates dist/<pkg>.tar
+      await ctx.runEask("package", { timeout: 40000 },
+                        // See https://github.com/emacs-eask/cli/issues/11.
+                        cmp(await emacsVersion(), "28.1") == -1);
+      // installs dependencies and generated package
+      await ctx.runEask("install");
       const { stderr } = await ctx.runEask("list");
       expect(stderr).toMatch(packageName);
     });
@@ -36,13 +41,18 @@ describe("install and uninstall", () => {
     });
 
     it("uninstalls project package", async () => {
-      await ctx.runEask("uninstall");
+      await ctx.runEask("uninstall", { timeout: 40000 },
+                        // See https://github.com/emacs-eask/cli/issues/11.
+                        cmp(await emacsVersion(), "28.1") == -1);
       const { stderr } = await ctx.runEask("list");
       expect(stderr).not.toMatch(packageName);
     });
 
     it("installs dependencies", async () => {
-      const { stderr } = await ctx.runEask("install-deps");
+      const { stderr } = await ctx.runEask(
+        "install-deps", { timeout: 40000 },
+        // See https://github.com/emacs-eask/cli/issues/11.
+        cmp(await emacsVersion(), "28.1") == -1);
       expect(stderr).not.toMatch(packageName);
     });
 
@@ -97,7 +107,7 @@ describe("install and uninstall", () => {
       /* VC install */
 
       test.skip("installs vc directly", async () => {
-        if ((await emacsVersion()) >= "29.1") {
+        if (cmp(await emacsVersion(), "29.1") == 1) {
           const { stderr } = await ctx.runEask(
             "install-vc https://github.com/jcs-elpa/msgu"
           );
diff --git a/test/jest/lint/checkdoc-fail.el b/test/jest/lint/checkdoc-fail.el
index f521198d..07c05e53 100644
--- a/test/jest/lint/checkdoc-fail.el
+++ b/test/jest/lint/checkdoc-fail.el
@@ -1,4 +1,4 @@
-;;; ert-test.el --- Test the command ert      -*- lexical-binding: t; -*-
+;;; checkdoc-fail.el --- Test checkdoc fail  -*- lexical-binding: t; -*-
 
 ;; Copyright (C) 2025  the Eask authors.
 
@@ -26,4 +26,4 @@
 
 in this    " ignore)
 
-;;; declare-ok.el ends here
+;;; checkdoc-fail.el ends here
diff --git a/test/jest/lint/declare-fail.el b/test/jest/lint/declare-fail.el
index 2a3207e5..08c132e6 100644
--- a/test/jest/lint/declare-fail.el
+++ b/test/jest/lint/declare-fail.el
@@ -1,4 +1,4 @@
-;;; declare-fail.el --- Test lint declare      -*- lexical-binding: t; -*-
+;;; declare-fail.el --- Test declare-fail  -*- lexical-binding: t; -*-
 
 ;; Copyright (C) 2025  the Eask authors.
 
diff --git a/test/jest/lint/declare-ok.el b/test/jest/lint/declare-ok.el
index 70ab1bfe..fe82549a 100644
--- a/test/jest/lint/declare-ok.el
+++ b/test/jest/lint/declare-ok.el
@@ -1,4 +1,4 @@
-;;; ert-test.el --- Test the command ert      -*- lexical-binding: t; -*-
+;;; declare-ok.el --- Test declare-ok      -*- lexical-binding: t; -*-
 
 ;; Copyright (C) 2025  the Eask authors.
 
diff --git a/test/jest/lint/elisp-lint-ok.el b/test/jest/lint/elisp-lint-ok.el
index 29915e81..409f5558 100644
--- a/test/jest/lint/elisp-lint-ok.el
+++ b/test/jest/lint/elisp-lint-ok.el
@@ -1,4 +1,4 @@
-;;; elisp-lint-ok.el --- Test the linting      -*- lexical-binding: t; -*-
+;;; elisp-lint-ok.el --- Test elisp-lint-ok      -*- lexical-binding: t; -*-
 
 ;; Copyright (C) 2025  the Eask authors.
 
diff --git a/test/jest/lint/elsa-warn.el b/test/jest/lint/elsa-warn.el
index d7e9ace4..563f7b31 100644
--- a/test/jest/lint/elsa-warn.el
+++ b/test/jest/lint/elsa-warn.el
@@ -1,4 +1,4 @@
-;;; elsa-warn.el --- Test elsa linting      -*- lexical-binding: t; -*-
+;;; elsa-warn.el --- Test elsa-warn  -*- lexical-binding: t; -*-
 
 ;; Copyright (C) 2025  the Eask authors.
 
diff --git a/test/jest/lint/indent-warn.el b/test/jest/lint/indent-warn.el
index d2d6156e..42b65490 100644
--- a/test/jest/lint/indent-warn.el
+++ b/test/jest/lint/indent-warn.el
@@ -1,4 +1,4 @@
-;;; indent-warn.el --- Test indent linting      -*- lexical-binding: t; -*-
+;;; indent-warn.el --- Test indent-warn  -*- lexical-binding: t; -*-
 
 ;; Copyright (C) 2025  the Eask authors.
 
diff --git a/test/jest/lint/regexp-warn.el b/test/jest/lint/regexp-warn.el
index ecfdc2b2..83f9d8a9 100644
--- a/test/jest/lint/regexp-warn.el
+++ b/test/jest/lint/regexp-warn.el
@@ -1,4 +1,4 @@
-;;; regexp-warn.el --- Test regexp linting      -*- lexical-binding: t; -*-
+;;; regexp-warn.el --- Test regexp-warn  -*- lexical-binding: t; -*-
 
 ;; Copyright (C) 2025  the Eask authors.
 
diff --git a/test/jest/local.test.js b/test/jest/local.test.js
index 1b2b3278..a1054922 100644
--- a/test/jest/local.test.js
+++ b/test/jest/local.test.js
@@ -4,16 +4,22 @@
 // Notice, below we clone a random package (repo) that uses Eask as the
 // dependencies management tool.
 
+const cmp = require('semver-compare');
 const { emacsVersion, TestContext } = require("./helpers");
 
 describe("local", () => {
   const cwd = "./test/jest/local";
   const ctx = new TestContext(cwd);
 
-  // NOTE: install-deps takes a long time in this package
+  // NOTE: `install-deps` takes a long time in this package
   //       this is because of recipe dependencies triggering
   //       "temporary archives" build.
-  beforeAll(async () => await ctx.runEask("install-deps", { timeout: 40000 }));
+  beforeAll(async () => {
+    await ctx.runEask(
+      "install-deps", { timeout: 40000 },
+      // See https://github.com/emacs-eask/cli/issues/11.
+      cmp(await emacsVersion(), "28.1") == -1);
+  });
 
   afterAll(() => ctx.cleanUp());
 
@@ -49,7 +55,7 @@ describe("local", () => {
     // NOTE: eask loc is a long running command
     it("loc", async () => {
       // installs markdown mode -- depends on emacs 28.1
-      if ((await emacsVersion()) >= "28.1") {
+      if (cmp(await emacsVersion(), "28.1") == 1) {
         await ctx.runEask("loc");
         await ctx.runEask("loc Eask");
       }
@@ -77,7 +83,13 @@ describe("local", () => {
   });
 
   describe("Development", () => {
-    beforeAll(async () => await ctx.runEask("install-deps"));
+    beforeAll(async () => {
+      await ctx.runEask(
+        "install-deps", { timeout: 40000 },
+        // See https://github.com/emacs-eask/cli/issues/11.
+        cmp(await emacsVersion(), "28.1") == -1)
+    });
+
     // this requires install-deps
     it("compile", async () => {
       await ctx.runEask("compile");
@@ -110,7 +122,11 @@ describe("local", () => {
   });
 
   describe("Execution", () => {
-    beforeAll(async () => await ctx.runEask("install-deps"));
+    beforeAll(async () => {
+      await ctx.runEask("install-deps", { timeout: 40000 },
+                        // See https://github.com/emacs-eask/cli/issues/11.
+                        cmp(await emacsVersion(), "28.1") == -1)
+    });
 
     test("eval", async () => {
       await ctx.runEask('eval "(progn (require \'mini.pkg.1))"');
@@ -195,13 +211,16 @@ describe("local", () => {
 
   describe("Linting", () => {
     // some lint commands may fail if packages are missing
-    beforeAll(async () => await ctx.runEask("install-deps"));
+    beforeAll(async () => {
+      await ctx.runEask("install-deps", { timeout: 40000 },
+                        // See https://github.com/emacs-eask/cli/issues/11.
+                        cmp(await emacsVersion(), "28.1") == -1)
+    });
 
     it.each([
       "lint checkdoc",
       "lint declare",
       "lint elint",
-      "lint elisp-lint",
       "lint indent",
       "lint keywords",
       "lint license",
@@ -210,17 +229,23 @@ describe("local", () => {
       await ctx.runEask(cmd);
     });
 
-    it("lint regexps", async () => {
-      if ((await emacsVersion()) >= "27.1") {
-        await ctx.runEask("lint regexps");
-      }
-    });
-
     // XXX: Elsa is not stable, ignore it for now
     test.skip("lint elsa", async () => {
       await ctx.runEask("lint elsa");
     });
 
+    it("lint elint", async () => {
+      await ctx.runEask("lint elisp-lint", { },
+                        // See https://github.com/emacs-eask/cli/issues/11.
+                        cmp(await emacsVersion(), "28.1") == -1);
+    });
+
+    it("lint regexps", async () => {
+      if (cmp(await emacsVersion(), "27.1") == 1) {
+        await ctx.runEask("lint regexps");
+      }
+    });
+
     it("lint org *.org", async () => {
       await ctx.runEask("lint org *.org");
     });
@@ -235,7 +260,7 @@ describe("local", () => {
   describe("Formatting", () => {
     // installs elisp-autofmt
     it("format elisp-autofmt", async () => {
-      if ((await emacsVersion()) >= "29.1") {
+      if (cmp(await emacsVersion(), "29.1") == 1) {
         await ctx.runEask("format elisp-autofmt");
       }
     });
diff --git a/test/jest/local/Eask b/test/jest/local/Eask
index 91d8bb6d..10dde27f 100644
--- a/test/jest/local/Eask
+++ b/test/jest/local/Eask
@@ -1,7 +1,7 @@
 ;; -*- mode: eask; lexical-binding: t -*-
 
 (package "mini.pkg.1"
-         "9.9.10"
+         "12.12.13"
          "Minimal test package")
 
 (website-url "https://github.com/emacs-eask/cli/tree/master/test/fixtures/mini.pkg.1")
diff --git a/test/jest/local/mini.pkg.1.el b/test/jest/local/mini.pkg.1.el
index fd474bcc..3ee45d9d 100644
--- a/test/jest/local/mini.pkg.1.el
+++ b/test/jest/local/mini.pkg.1.el
@@ -5,7 +5,7 @@
 
 ;; Author: Shen, Jen-Chieh <jcs090218@gmail.com>
 ;; URL: https://github.com/emacs-eask/cli/tree/master/test/fixtures/mini.pkg.1
-;; Version: 9.9.10
+;; Version: 12.12.13
 ;; Package-Requires: ((emacs "24.3") (s "1.12.0") (fringe-helper "1.0.1"))
 ;; Keywords: test local
 
diff --git a/test/jest/options/options.el b/test/jest/options/options.el
new file mode 100644
index 00000000..c46c536b
--- /dev/null
+++ b/test/jest/options/options.el
@@ -0,0 +1,37 @@
+;;; options.el --- Test all options flag  -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2025  the Eask authors.
+
+;; Author: Shen, Jen-Chieh <jcs090218@gmail.com>
+;; Maintainer: Shen, Jen-Chieh <jcs090218@gmail.com>
+;; URL: https://github.com/emacs-eask/options
+;; Version: 0.0.0
+;; Package-Requires: ((emacs "26.1"))
+;; Keywords:  test
+
+;; This file is not part of GNU Emacs.
+
+;; This program is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+;;
+;; Test options.
+;;
+
+;;; Code:
+
+;; Empty..
+
+(provide 'options)
+;;; options.el ends here
diff --git a/test/jest/outdated-upgrade.test.js b/test/jest/outdated-upgrade.test.js
index 660545ed..985990ae 100644
--- a/test/jest/outdated-upgrade.test.js
+++ b/test/jest/outdated-upgrade.test.js
@@ -1,10 +1,14 @@
-const { TestContext } = require("./helpers");
+const cmp = require('semver-compare');
+const { emacsVersion, TestContext } = require("./helpers");
 
 describe("outdated and upgrade", () => {
   const ctx = new TestContext("./test/jest/outdated-upgrade");
 
   beforeAll(async () => {
-    await ctx.runEask("install-deps");
+    await ctx.runEask(
+      "install-deps", { timeout: 40000 },
+      // See https://github.com/emacs-eask/cli/issues/11.
+      cmp(await emacsVersion(), "28.1") == -1);
     await ctx.runEask("load make-outdate.el");
   });