lld-link: Add test I forgot to add in 332012

Differential Revision: https://reviews.llvm.org/D46693


git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@352589 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/COFF/color-diagnostics.test b/test/COFF/color-diagnostics.test
new file mode 100644
index 0000000..a231f1f
--- /dev/null
+++ b/test/COFF/color-diagnostics.test
@@ -0,0 +1,18 @@
+# Windows command prompt doesn't support ANSI escape sequences.
+# REQUIRES: shell
+
+# RUN: not lld-link -xyz --color-diagnostics /nosuchfile 2>&1 \
+# RUN:   | FileCheck -check-prefix=COLOR %s
+# RUN: not lld-link -xyz --color-diagnostics=always /nosuchfile 2>&1 \
+# RUN:   | FileCheck -check-prefix=COLOR %s
+
+# COLOR: {{lld-link: .\[0;1;35mwarning: .\[0mignoring unknown argument: -xyz}}
+# COLOR: {{lld-link: .\[0;1;31merror: .\[0mcould not open /nosuchfile}}
+
+# RUN: not lld-link /nosuchfile 2>&1 | FileCheck -check-prefix=NOCOLOR %s
+# RUN: not lld-link -color-diagnostics=never /nosuchfile 2>&1 \
+# RUN:   | FileCheck -check-prefix=NOCOLOR %s
+# RUN: not lld-link -color-diagnostics=always -no-color-diagnostics \
+# RUN:   /nosuchfile 2>&1 | FileCheck -check-prefix=NOCOLOR %s
+
+# NOCOLOR: lld-link: error: could not open /nosuchfile