From b5f07c4edfa20c59b9133d3a83c8a75a2541d93a Mon Sep 17 00:00:00 2001
From: Frank Schoenmann <frank.schoenmann@de.bosch.com>
Date: Wed, 4 Apr 2018 10:44:17 +0200
Subject: [PATCH] Added test cases for unrecognised options.

---
 test/options.cpp | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/test/options.cpp b/test/options.cpp
index acb2ba0..f43d3e3 100644
--- a/test/options.cpp
+++ b/test/options.cpp
@@ -473,3 +473,30 @@ TEST_CASE("std::optional", "[optional]") {
   CHECK(*optional == "foo");
 }
 #endif
+
+TEST_CASE("Unrecognised options", "[options]") {
+  cxxopts::Options options("unknown_options", " - test basic options");
+
+  options.add_options()
+    ("long", "a long option")
+    ("s,short", "a short option");
+
+  Argv av({
+    "unknown_options",
+    "--long",
+    "-su",
+    "--unknown",
+  }); 
+
+  const char** argv = av.argv();
+  auto argc = av.argc();
+
+  SECTION("Default behaviour") {
+    CHECK_THROWS_AS(options.parse(argc, argv), cxxopts::option_not_exists_exception);
+  }
+
+  SECTION("After allowing unrecognised options") {
+    options.allow_unrecognised_options();
+    CHECK_NOTHROW(options.parse(argc, argv));
+  }
+}
\ No newline at end of file