From 543ef135fde6c5f578aaf674e901f7a692b75e79 Mon Sep 17 00:00:00 2001
From: DanielJDufour <daniel.j.dufour@gmail.com>
Date: Thu, 11 Nov 2021 17:02:05 -0500
Subject: [PATCH] throw error if only one argument supplied to eq

---
 examples/test.only-one-arg.js | 5 +++++
 index.js                      | 5 ++++-
 test.js                       | 4 ++++
 3 files changed, 13 insertions(+), 1 deletion(-)
 create mode 100644 examples/test.only-one-arg.js

diff --git a/examples/test.only-one-arg.js b/examples/test.only-one-arg.js
new file mode 100644
index 0000000..d677e8a
--- /dev/null
+++ b/examples/test.only-one-arg.js
@@ -0,0 +1,5 @@
+const test = require("../index.js");
+
+test("error", ({ eq }) => {
+  eq(1);
+});
diff --git a/index.js b/index.js
index 9f39b8f..ce8b932 100644
--- a/index.js
+++ b/index.js
@@ -21,7 +21,10 @@ const complete = [];
 
 const run = async ({ name, cb, caller }) => {
   let savedActual, savedExpected;
-  const eq = (actual, expected) => {
+  const eq = function (actual, expected) {
+    if (arguments.length === 1) {
+      throw new Error("you only supplied one argument");
+    }
     savedActual = actual;
     savedExpected = expected;
     if (deepStrictEqual) {
diff --git a/test.js b/test.js
index 9cc09e3..df92c65 100644
--- a/test.js
+++ b/test.js
@@ -34,3 +34,7 @@ t("node ./examples/test.queue.js", "\x1B[32msuccess: first\x1B[0m\n\x1B[32msucce
 t("node ./examples/test.filename.js", "\x1B[33mskipped: invalid filename\x1B[39m\n\x1B[32msuccess: valid filename\x1B[0m\n");
 
 t("node ./examples/test.dir.js", "\x1B[33mskipped: invalid dir\x1B[39m\n\x1B[32msuccess: valid dir\x1B[0m\n");
+
+const cmd2 = "node ./examples/test.only-one-arg.js";
+const log2 = $(cmd2).trim().replace(/\n/g, "");
+assert.strictEqual(log2.includes("you only supplied one argument"), true);