From 045b5c6b6bb2eb7915527672eb9809ff6eebd956 Mon Sep 17 00:00:00 2001
From: Nils Adermann <naderman@naderman.de>
Date: Fri, 13 Nov 2020 14:16:40 +0100
Subject: [PATCH] Add test case verifying conflicts on alias prevent it from
 getting installed

---
 ...lict-with-alias-prevents-installation.test | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 tests/Composer/Test/Fixtures/installer/conflict-with-alias-prevents-installation.test

diff --git a/tests/Composer/Test/Fixtures/installer/conflict-with-alias-prevents-installation.test b/tests/Composer/Test/Fixtures/installer/conflict-with-alias-prevents-installation.test
new file mode 100644
index 000000000..b4425a6eb
--- /dev/null
+++ b/tests/Composer/Test/Fixtures/installer/conflict-with-alias-prevents-installation.test
@@ -0,0 +1,27 @@
+--TEST--
+Test that conflict on a branch alias is respected
+--COMPOSER--
+{
+    "repositories": [
+        {
+            "type": "package",
+            "package": [
+                { "name": "some/dep", "version": "1.0.0" },
+                { "name": "some/dep", "version": "1.1.0" },
+                { "name": "some/dep", "version": "1.2.0" },
+                { "name": "some/dep", "version": "dev-main", "extra": {"branch-alias": {"dev-main": "1.3.x-dev"} } },
+                { "name": "some/dep", "version": "1.2.x-dev" }
+            ]
+        }
+    ],
+    "require": {
+        "some/dep": "^1.0@dev"
+    },
+    "conflict": {
+        "some/dep": ">=1.3"
+    }
+}
+--RUN--
+update
+--EXPECT--
+Installing some/dep (1.2.x-dev)