1 files changed, 47 insertions, 0 deletions
diff --git a/core/libdeno/test.cc b/core/libdeno/test.cc
new file mode 100644
index 000000000..0bfe374ef
--- /dev/null
+++ b/core/libdeno/test.cc
@@ -0,0 +1,47 @@
+// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
+#include "test.h"
+#include <fstream>
+#include <string>
+#include "internal.h"
+
+deno_snapshot snapshot = {nullptr, 0};
+
+bool ReadFileToString(const char* fn, std::string* contents) {
+  std::ifstream file(fn, std::ios::binary);
+  if (file.fail()) {
+    return false;
+  }
+  contents->assign(std::istreambuf_iterator<char>{file}, {});
+  return !file.fail();
+}
+
+int main(int argc, char** argv) {
+  // All of the JS code in libdeno_test.js is tested after being snapshotted.
+  // We create that snapshot now at runtime, rather than at compile time to
+  // simplify the build process. So we load and execute the libdeno_test.js
+  // file, without running any of the tests and store the result in the global
+  // "snapshot" variable, which will be used later in the tests.
+  std::string js_fn = JS_PATH;
+  std::string js_source;
+  CHECK(ReadFileToString(js_fn.c_str(), &js_source));
+
+  deno_init();
+  deno_config config = {1, deno::empty_snapshot, deno::empty_buf, nullptr,
+                        nullptr};
+  Deno* d = deno_new(config);
+
+  deno_execute(d, nullptr, js_fn.c_str(), js_source.c_str());
+  if (deno_last_exception(d) != nullptr) {
+    std::cerr << "Snapshot Exception " << std::endl;
+    std::cerr << deno_last_exception(d) << std::endl;
+    deno_delete(d);
+    return 1;
+  }
+
+  snapshot = deno_snapshot_new(d);
+
+  testing::InitGoogleTest(&argc, argv);
+  deno_init();
+  deno_set_v8_flags(&argc, argv);
+  return RUN_ALL_TESTS();
+}