fix MemoryDevice::list & update filesystem tests

dev/tests/filesystem.lua

@@ -4,6 +4,7 @@ assert(file.exists("config:"))
 debug.log("write text file")
 assert(file.write("config:text.txt", "example, пример"))
 assert(file.exists("config:text.txt"))
+assert(file.isfile("config:text.txt"))
 
 debug.log("read text file")
 assert(file.read("config:text.txt") == "example, пример")
@@ -24,6 +25,17 @@ debug.log("create directories")
 file.mkdirs("config:dir/subdir/other")
 assert(file.isdir("config:dir/subdir/other"))
 
+debug.log("list directory")
+file.write("config:dir/subdir/a.txt", "helloworld")
+file.write("config:dir/subdir/b.txt", "gfgsfhs")
+
+local entries = file.list("config:dir/subdir")
+assert(#entries == 3)
+table.sort(entries)
+assert(entries[1] == "config:dir/subdir/a.txt")
+assert(entries[2] == "config:dir/subdir/b.txt")
+assert(entries[3] == "config:dir/subdir/other")
+
 debug.log("remove tree")
 file.remove_tree("config:dir")
 assert(not file.isdir("config:dir"))

dev/tests/memory_filesystem.lua

@@ -1,12 +1,15 @@
 app.create_memory_device("memtest")
+local tmp = file.create_memory_device()
 
 debug.log("check initial state")
 assert(file.exists("memtest:"))
 assert(file.is_writeable("memtest:"))
+assert(file.is_writeable(tmp..":"))
 
 debug.log("write text file")
 assert(file.write("memtest:text.txt", "example, пример"))
 assert(file.exists("memtest:text.txt"))
+assert(file.isfile("memtest:text.txt"))
 
 debug.log("read text file")
 assert(file.read("memtest:text.txt") == "example, пример")
@@ -27,6 +30,17 @@ debug.log("create directories")
 file.mkdirs("memtest:dir/subdir/other")
 assert(file.isdir("memtest:dir/subdir/other"))
 
+debug.log("list directory")
+file.write("memtest:dir/subdir/a.txt", "helloworld")
+file.write("memtest:dir/subdir/b.txt", "gfgsfhs")
+
+local entries = file.list("memtest:dir/subdir")
+assert(#entries == 3)
+table.sort(entries)
+assert(entries[1] == "memtest:dir/subdir/a.txt")
+assert(entries[2] == "memtest:dir/subdir/b.txt")
+assert(entries[3] == "memtest:dir/subdir/other")
+
 debug.log("remove tree")
 file.remove_tree("memtest:dir")
 assert(not file.isdir("memtest:dir"))

src/io/devices/MemoryDevice.cpp

@@ -139,7 +139,8 @@ uint64_t io::MemoryDevice::removeAll(std::string_view path) {
     uint64_t count = 0;
     if (found->second.holds_alternative<Dir>()) {
         auto dir = found->second.get_if<Dir>();
-        for (const auto& name : dir->content) {
+        auto files = dir->content;
+        for (const auto& name : files) {
             io::path subPath = filePath / name;
             count += removeAll(subPath.string());
         }