[mlpack-git] master: Test duplicate parameter handling. (eb5b750)

[gitdub at mlpack.org]

Repository : https://github.com/mlpack/mlpack
On branch  : master
Link       : https://github.com/mlpack/mlpack/compare/981ffa2d67d8fe38df6c699589005835fef710ea...04551164d9950dbdb3738f0c9d87e2d498fd8192

>---------------------------------------------------------------

commit eb5b750ac00f9f608d600cfbdc5b9c9a66cff4d5
Author: Ryan Curtin <ryan at ratml.org>
Date:   Tue Nov 1 11:52:43 2016 -0400

    Test duplicate parameter handling.


>---------------------------------------------------------------

eb5b750ac00f9f608d600cfbdc5b9c9a66cff4d5
 src/mlpack/tests/cli_test.cpp | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/src/mlpack/tests/cli_test.cpp b/src/mlpack/tests/cli_test.cpp
index 90f89b6..953791d 100644
--- a/src/mlpack/tests/cli_test.cpp
+++ b/src/mlpack/tests/cli_test.cpp
@@ -125,6 +125,47 @@ BOOST_AUTO_TEST_CASE(TestOption)
 }
 
 /**
+ * Test that duplicate flags are filtered out correctly.
+ */
+BOOST_AUTO_TEST_CASE(TestDuplicateFlag)
+{
+  AddRequiredCLIOptions();
+
+  PARAM_FLAG("test", "test", "t");
+
+  int argc = 3;
+  const char* argv[3];
+  argv[0] = "./test";
+  argv[1] = "--test";
+  argv[2] = "--test";
+
+  // This should not throw an exception.
+  CLI::ParseCommandLine(argc, const_cast<char**>(argv));
+}
+
+/**
+ * Test that duplicate options throw an exception.
+ */
+BOOST_AUTO_TEST_CASE(TestDuplicateParam)
+{
+  AddRequiredCLIOptions();
+
+  int argc = 5;
+  const char* argv[5];
+  argv[0] = "./test";
+  argv[1] = "--info";
+  argv[2] = "test1";
+  argv[3] = "--info";
+  argv[4] = "test2";
+
+  // This should throw an exception.
+  Log::Fatal.ignoreInput = true;
+  BOOST_REQUIRE_THROW(CLI::ParseCommandLine(argc, const_cast<char**>(argv)),
+      std::runtime_error);
+  Log::Fatal.ignoreInput = false;
+}
+
+/**
  * Ensure that a Boolean option which we define is set correctly.
  */
 BOOST_AUTO_TEST_CASE(TestBooleanOption)