Add unit tests for LambdaInvoker.

2 files changed, 66 insertions, 0 deletions

diff --git a/tests/util/CMakeLists.txt b/tests/util/CMakeLists.txt
new file mode 100644
index 0000000..08dfa80
--- /dev/null
+++ b/tests/util/CMakeLists.txt
@@ -0,0 +1,5 @@
+set(UTIL_TEST_SOURCES
+lambda_invoker.cpp
+)
+
+add_fruit_tests(util UTIL_TEST_SOURCES)
diff --git a/tests/util/lambda_invoker.cpp b/tests/util/lambda_invoker.cpp
new file mode 100644
index 0000000..0af76f5
--- /dev/null
+++ b/tests/util/lambda_invoker.cpp
@@ -0,0 +1,61 @@
+// expect-success
+/*
+ * Copyright 2014 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define IN_FRUIT_CPP_FILE
+
+#include <fruit/impl/util/lambda_invoker.h>
+
+#include <cassert>
+
+using namespace std;
+using namespace fruit::impl;
+
+
+void test_invoke_no_args() {
+  // This is static because the lambda must have no captures.
+  static int num_invocations = 0;
+  
+  auto l = []() {
+    ++num_invocations;
+  };
+  using L = decltype(l);
+  LambdaInvoker::invoke<L>();
+  assert(num_invocations == 1);
+}
+
+void test_invoke_some_args() {
+  // This is static because the lambda must have no captures.
+  static int num_invocations = 0;
+  
+  auto l = [](int n, double x) {
+    assert(n == 5);
+    assert(x == 3.14);
+    ++num_invocations;
+  };
+  using L = decltype(l);
+  LambdaInvoker::invoke<L>(5, 3.14);
+  assert(num_invocations == 1);
+}
+
+
+int main() {
+  
+  test_invoke_no_args();
+  test_invoke_some_args();
+  
+  return 0;
+}