From fcf1be65b4e45191f1aaa910b3452cc2f14ea75e Mon Sep 17 00:00:00 2001
From: Alexander Shalamov <alexander.shalamov@mapbox.com>
Date: Mon, 27 Jan 2020 11:58:50 +0200
Subject: [core] Add unit test for pausing & resuming database fs

---
 next/test/CMakeLists.txt                   |  1 +
 test/storage/database_file_source.test.cpp | 25 +++++++++++++++++++++++++
 test/test-files.json                       |  1 +
 3 files changed, 27 insertions(+)
 create mode 100644 test/storage/database_file_source.test.cpp

diff --git a/next/test/CMakeLists.txt b/next/test/CMakeLists.txt
index 11d108bf3d..cb0519ade9 100644
--- a/next/test/CMakeLists.txt
+++ b/next/test/CMakeLists.txt
@@ -35,6 +35,7 @@ add_library(
     ${MBGL_ROOT}/test/src/mbgl/test/test.cpp
     ${MBGL_ROOT}/test/src/mbgl/test/util.cpp
     ${MBGL_ROOT}/test/storage/asset_file_source.test.cpp
+    ${MBGL_ROOT}/test/storage/database_file_source.test.cpp
     ${MBGL_ROOT}/test/storage/headers.test.cpp
     ${MBGL_ROOT}/test/storage/http_file_source.test.cpp
     ${MBGL_ROOT}/test/storage/local_file_source.test.cpp
diff --git a/test/storage/database_file_source.test.cpp b/test/storage/database_file_source.test.cpp
new file mode 100644
index 0000000000..579e9a8c57
--- /dev/null
+++ b/test/storage/database_file_source.test.cpp
@@ -0,0 +1,25 @@
+#include <mbgl/storage/file_source_manager.hpp>
+#include <mbgl/storage/resource.hpp>
+#include <mbgl/storage/resource_options.hpp>
+#include <mbgl/test/util.hpp>
+#include <mbgl/util/run_loop.hpp>
+#include <mbgl/util/timer.hpp>
+
+#include <gtest/gtest.h>
+
+using namespace mbgl;
+
+TEST(DatabaseFileSource, PauseResume) {
+    util::RunLoop loop;
+
+    auto dbfs = FileSourceManager::get()->getFileSource(FileSourceType::Database, ResourceOptions{});
+    dbfs->pause();
+
+    const Resource res{Resource::Unknown, "http://127.0.0.1:3000/test", {}, Resource::LoadingMethod::CacheOnly};
+    auto req = dbfs->request(res, [&](const Response&) { loop.stop(); });
+
+    util::Timer resumeTimer;
+    resumeTimer.start(Milliseconds(5), Duration::zero(), [dbfs] { dbfs->resume(); });
+
+    loop.run();
+}
\ No newline at end of file
diff --git a/test/test-files.json b/test/test-files.json
index 8691583765..3a4ad95722 100644
--- a/test/test-files.json
+++ b/test/test-files.json
@@ -36,6 +36,7 @@
         "test/src/mbgl/test/test.cpp",
         "test/src/mbgl/test/util.cpp",
         "test/storage/asset_file_source.test.cpp",
+        "test/storage/database_file_source.test.cpp",
         "test/storage/headers.test.cpp",
         "test/storage/http_file_source.test.cpp",
         "test/storage/local_file_source.test.cpp",
-- 
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