From 36ca344e24bbca16426348c23ba7894f671e18c9 Mon Sep 17 00:00:00 2001
From: "(quasar) nebula" <qznebula@protonmail.com>
Date: Sun, 9 Apr 2023 19:48:59 -0300
Subject: test: html.template & Template descriptor errors

---
 test/lib/strict-match-error.js | 50 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 test/lib/strict-match-error.js

(limited to 'test/lib')

diff --git a/test/lib/strict-match-error.js b/test/lib/strict-match-error.js
new file mode 100644
index 00000000..e3b36e93
--- /dev/null
+++ b/test/lib/strict-match-error.js
@@ -0,0 +1,50 @@
+export function strictlyThrows(t, fn, pattern) {
+  const error = catchErrorOrNull(fn);
+
+  t.currentAssert = strictlyThrows;
+
+  if (error === null) {
+    t.fail(`expected to throw`);
+    return;
+  }
+
+  const nameAndMessage = `${pattern.constructor.name} ${pattern.message}`;
+  t.match(
+    prepareErrorForMatch(error),
+    prepareErrorForMatch(pattern),
+    (pattern instanceof AggregateError
+      ? `expected to throw: ${nameAndMessage} (${pattern.errors.length} error(s))`
+      : `expected to throw: ${nameAndMessage}`));
+}
+
+function prepareErrorForMatch(error) {
+  if (error instanceof RegExp) {
+    return {
+      message: error,
+    };
+  }
+
+  if (!(error instanceof Error)) {
+    return error;
+  }
+
+  const matchable = {
+    name: error.constructor.name,
+    message: error.message,
+  };
+
+  if (error instanceof AggregateError) {
+    matchable.errors = error.errors.map(prepareErrorForMatch);
+  }
+
+  return matchable;
+}
+
+function catchErrorOrNull(fn) {
+  try {
+    fn();
+    return null;
+  } catch (error) {
+    return error;
+  }
+}
-- 
cgit 1.3.0-6-gf8a5