cmUVProcessChain::Wait(): Treat timeout of 0 as no timeout

1 files changed, 19 insertions, 0 deletions

diff --git a/Tests/CMakeLib/testUVProcessChain.cxx b/Tests/CMakeLib/testUVProcessChain.cxx
index 7630aa0..22373ef 100644
--- a/Tests/CMakeLib/testUVProcessChain.cxx
+++ b/Tests/CMakeLib/testUVProcessChain.cxx
@@ -652,6 +652,20 @@ bool testUVProcessChainInputFile(const char* helperCommand)
   return true;
 }
 
+bool testUVProcessChainWait0(const char* helperCommand)
+{
+  cmUVProcessChainBuilder builder;
+  builder.AddCommand({ helperCommand, "echo" });
+
+  auto chain = builder.Start();
+  if (!chain.Wait(0)) {
+    std::cout << "Wait(0) returned false, should be true" << std::endl;
+    return false;
+  }
+
+  return true;
+}
+
 int testUVProcessChain(int argc, char** const argv)
 {
   if (argc < 2) {
@@ -699,5 +713,10 @@ int testUVProcessChain(int argc, char** const argv)
     return -1;
   }
 
+  if (!testUVProcessChainWait0(argv[1])) {
+    std::cout << "While executing testUVProcessChainWait0().\n";
+    return -1;
+  }
+
   return 0;
 }