Prepare cscore for merge into allwpilib.

cscore/src/test/java/edu/wpi/cscore/JNITest.java

@@ -0,0 +1,18 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) 2017-2018 FIRST. All Rights Reserved.                        */
+/* Open Source Software - may be modified and shared by FRC teams. The code   */
+/* must be accompanied by the FIRST BSD license file in the root directory of */
+/* the project.                                                               */
+/*----------------------------------------------------------------------------*/
+
+package edu.wpi.cscore;
+
+import org.junit.Test;
+
+public class JNITest {
+    @Test
+    public void jniLinkTest() {
+        // Test to verify that the JNI test link works correctly.
+        edu.wpi.cscore.CameraServerJNI.getHostname();
+    }
+}

cscore/src/test/native/cpp/CameraSourceTest.cpp

@@ -0,0 +1,22 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) 2015-2018 FIRST. All Rights Reserved.                        */
+/* Open Source Software - may be modified and shared by FRC teams. The code   */
+/* must be accompanied by the FIRST BSD license file in the root directory of */
+/* the project.                                                               */
+/*----------------------------------------------------------------------------*/
+
+#include "cscore.h"
+#include "gtest/gtest.h"
+
+namespace cs {
+
+class CameraSourceTest : public ::testing::Test {
+ protected:
+  CameraSourceTest() {}
+};
+
+TEST_F(CameraSourceTest, HTTPCamera) {
+  auto source = HttpCamera("axis", "http://localhost:8000");
+}
+
+}  // namespace cs

cscore/src/test/native/cpp/main.cpp

@@ -0,0 +1,14 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) 2015-2018 FIRST. All Rights Reserved.                        */
+/* Open Source Software - may be modified and shared by FRC teams. The code   */
+/* must be accompanied by the FIRST BSD license file in the root directory of */
+/* the project.                                                               */
+/*----------------------------------------------------------------------------*/
+
+#include "gtest/gtest.h"
+
+int main(int argc, char** argv) {
+  ::testing::InitGoogleTest(&argc, argv);
+  int ret = RUN_ALL_TESTS();
+  return ret;
+}