1 files changed, 39 insertions, 0 deletions
diff --git a/test/src/mbgl/test/sqlite3_test_fs.hpp b/test/src/mbgl/test/sqlite3_test_fs.hpp
new file mode 100644
index 0000000000..00351f49ac
--- /dev/null
+++ b/test/src/mbgl/test/sqlite3_test_fs.hpp
@@ -0,0 +1,39 @@
+#pragma once
+
+#include <cstdint>
+
+namespace mbgl {
+namespace test {
+
+class SQLite3TestFS {
+public:
+    SQLite3TestFS();
+    ~SQLite3TestFS();
+
+    // When enabled, the VFS will log all I/O operations to stdout.
+    void setDebug(bool);
+
+    // Allow any type of I/O. Will fail with SQLITE_AUTH if set to false. This is useful to simulate
+    // scenarios where the OS blocks an entire app's I/O, e.g. when it's in the background.
+    void allowIO(bool);
+    
+    // Allow files to be opened. Will fail with SQLITE_CANTOPEN if set to false.
+    void allowFileOpen(bool);
+    
+    // Allow files to be created. Will fail with SQLITE_CANTOPEN if set to false.
+    void allowFileCreate(bool);
+    
+    // Allow N bytes to be read, then fail reads with SQLITE_IOERR. -1 == unlimited
+    // This limit is global, not per file.
+    void setReadLimit(int64_t);
+    
+    // Allow N bytes to be written, then fail writes with SQLITE_FULL. -1 == unlimited
+    // This limit is global, not per file.
+    void setWriteLimit(int64_t);
+    
+    // Reset all restrictions.
+    void reset();
+};
+
+} // namespace test
+} // namespace mbgl