From 6e105c5ca6c95f6159d91f74df92020f33ae2f99 Mon Sep 17 00:00:00 2001
From: "Alex Lam S.L" <alexlamsl@gmail.com>
Date: Fri, 25 Sep 2020 15:00:20 +0100
Subject: enhance `merge_vars` (#4152)

---
 test/compress/merge_vars.js | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

(limited to 'test/compress')

diff --git a/test/compress/merge_vars.js b/test/compress/merge_vars.js
index b5148669..b86b0e99 100644
--- a/test/compress/merge_vars.js
+++ b/test/compress/merge_vars.js
@@ -2800,3 +2800,25 @@ lambda_reuse: {
         "string",
     ]
 }
+
+conditional_write: {
+    options = {
+        merge_vars: true,
+        toplevel: true,
+    }
+    input: {
+        var a = "FAIL", b;
+        if (console)
+            a = "PASS";
+        b = [a, 42].join();
+        console.log(b);
+    }
+    expect: {
+        var b = "FAIL", b;
+        if (console)
+            b = "PASS";
+        b = [b, 42].join();
+        console.log(b);
+    }
+    expect_stdout: "PASS,42"
+}
-- 
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