From 45b8da99a95f71d3549c22d463c4a9bd38fb2fb9 Mon Sep 17 00:00:00 2001
From: Tobias Soloschenko <nocturnts@googlemail.com>
Date: Mon, 8 Jul 2024 15:47:52 +0200
Subject: [PATCH] feat: use branch prerelease property for detection (#863)

* feat: use branch prerelease property for detection

* Update lib/is-prerelease.js

Co-authored-by: Gregor Martynus <39992+gr2m@users.noreply.github.com>

---------

Co-authored-by: Olabode Lawal-Shittabey <babblebey@gmail.com>
Co-authored-by: Gregor Martynus <39992+gr2m@users.noreply.github.com>
---
 lib/is-prerelease.js       | 12 +++++++--
 test/is-prerelease.test.js | 52 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 62 insertions(+), 2 deletions(-)
 create mode 100644 test/is-prerelease.test.js

diff --git a/lib/is-prerelease.js b/lib/is-prerelease.js
index 6eb91c16..c04a7ba3 100644
--- a/lib/is-prerelease.js
+++ b/lib/is-prerelease.js
@@ -1,3 +1,11 @@
-export default function isPrerelease({ type, main }) {
-  return type === "prerelease" || (type === "release" && !main);
+export default function isPrerelease({ type, main, prerelease }) {
+  if (prerelease === false) {
+    return false;
+  }
+  return (
+    type === "prerelease" ||
+    (type === "release" && !main) ||
+    typeof prerelease == "string" ||
+    prerelease === true
+  );
 }
diff --git a/test/is-prerelease.test.js b/test/is-prerelease.test.js
new file mode 100644
index 00000000..8c2c60f1
--- /dev/null
+++ b/test/is-prerelease.test.js
@@ -0,0 +1,52 @@
+import test from "ava";
+import isPrerelease from "../lib/is-prerelease.js";
+
+test("Test for empty object", (t) => {
+  const branch = {};
+  t.is(isPrerelease(branch), false);
+});
+
+test("Test if prerelease true property as boolean is used correctly", (t) => {
+  const branch = {
+    prerelease: true,
+  };
+  t.is(isPrerelease(branch), true);
+});
+
+test("Test if prerelease false property as boolean is used correctly", (t) => {
+  const branch = {
+    prerelease: false,
+  };
+  t.is(isPrerelease(branch), false);
+});
+
+test("Test if prerelease property as string is used correctly", (t) => {
+  const branch = {
+    prerelease: "rc",
+  };
+  t.is(isPrerelease(branch), true);
+});
+
+test("Test if prerelease type is used correctly", (t) => {
+  const branch = {
+    type: "prerelease",
+  };
+  t.is(isPrerelease(branch), true);
+});
+
+test("Test if prerelease type and main is used correctly", (t) => {
+  const branch = {
+    type: "release",
+    main: false,
+  };
+  t.is(isPrerelease(branch), true);
+});
+
+test("Test if prerelease type and main in addition to prerelease is used correctly", (t) => {
+  const branch = {
+    type: "release",
+    main: false,
+    prerelease: false,
+  };
+  t.is(isPrerelease(branch), false);
+});