Add test for empty result of filter generator

1 files changed, 10 insertions, 0 deletions

diff --git a/tests/SelfTest/IntrospectiveTests/GeneratorsImpl.tests.cpp b/tests/SelfTest/IntrospectiveTests/GeneratorsImpl.tests.cpp
index 1c203b6b..64e943f8 100644
--- a/tests/SelfTest/IntrospectiveTests/GeneratorsImpl.tests.cpp
+++ b/tests/SelfTest/IntrospectiveTests/GeneratorsImpl.tests.cpp
@@ -16,6 +16,7 @@
 #include <catch2/generators/catch_generators_adapters.hpp>
 #include <catch2/generators/catch_generators_random.hpp>
 #include <catch2/generators/catch_generators_range.hpp>
+#include <catch2/generators/catch_generator_exception.hpp>
 
 // Tests of generator implementation details
 TEST_CASE("Generators internals", "[generators][internals]") {
@@ -534,3 +535,12 @@ TEST_CASE( "Random generators can be seeded", "[generators][approvals]" ) {
         }
     }
 }
+
+TEST_CASE("Filter generator throws exception for empty generator",
+          "[generators]") {
+    using namespace Catch::Generators;
+
+    REQUIRE_THROWS_AS(
+        filter( []( int ) { return false; }, value( 3 ) ),
+        Catch::GeneratorException );
+}