load stylesheet file for headless test

test/headless.cpp

@@ -1,9 +1,5 @@
-#include <iostream>
 #include "gtest/gtest.h"
 
-
-
-
 #include <llmr/llmr.hpp>
 #include <llmr/util/image.hpp>
 #include <llmr/util/io.hpp>
@@ -11,6 +7,11 @@
 
 #include <uv.h>
 
+#include <iostream>
+#include <fstream>
+#include <sstream>
+
+
 namespace llmr {
 namespace platform {
 
@@ -113,6 +114,13 @@ TEST(Headless, initialize) {
 
     map.resize(width, height);
 
+    std::ifstream stylefile("./style.min.js");
+    ASSERT_TRUE(stylefile.good());
+    std::stringstream stylejson;
+    stylejson << stylefile.rdbuf();
+
+    map.setStyleJSON(stylejson.str());
+
     timer.report("map resize");
 
     // Run the loop. It will terminate when we don't have any further listeners.