Report preprocessor exceptions as errors. Fixes wixtoolset/issues#5881.

1 files changed, 26 insertions, 0 deletions

diff --git a/src/test/WixToolsetTest.CoreIntegration/PreprocessorFixture.cs b/src/test/WixToolsetTest.CoreIntegration/PreprocessorFixture.cs
index 9c60c902..ebc713ed 100644
--- a/src/test/WixToolsetTest.CoreIntegration/PreprocessorFixture.cs
+++ b/src/test/WixToolsetTest.CoreIntegration/PreprocessorFixture.cs
@@ -63,6 +63,32 @@ namespace WixToolsetTest.CoreIntegration
                 Assert.Equal(0, result);
             }
         }
+
+        [Fact]
+        public void NonterminatedPreprocessorInstructionShowsSourceLineNumber()
+        {
+            var folder = TestData.Get(@"TestData\BadIf");
+
+            using (var fs = new DisposableFileSystem())
+            {
+                var baseFolder = fs.GetFolder();
+                var intermediateFolder = Path.Combine(baseFolder, "obj");
+
+                var result = WixRunner.Execute(new[]
+                {
+                    "build",
+                    Path.Combine(folder, "Package.wxs"),
+                    Path.Combine(folder, "PackageComponents.wxs"),
+                    "-loc", Path.Combine(folder, "Package.en-us.wxl"),
+                    "-bindpath", Path.Combine(folder, "data"),
+                    "-intermediateFolder", intermediateFolder,
+                    "-o", Path.Combine(baseFolder, @"bin\test.msi")
+                }, out var messages);
+
+                Assert.Equal(147, result);
+                Assert.StartsWith("Found a <?if?>", messages.Single().ToString());
+            }
+        }
     }
 }