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Add tests for using file operations on directories

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This commit is contained in:
Ryan Liptak 2020-06-26 00:06:23 -07:00
parent e820678ca1
commit 0e3d74df8a
1 changed files with 32 additions and 0 deletions
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32
lib/std/fs/test.zig
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@ -73,6 +73,38 @@ test "directory operations on files" {
file.close();
}
test "file operations on directories" {
var tmp_dir = tmpDir(.{});
defer tmp_dir.cleanup();
const test_dir_name = "test_dir";
try tmp_dir.dir.makeDir(test_dir_name);
testing.expectError(error.IsDir, tmp_dir.dir.createFile(test_dir_name, .{}));
testing.expectError(error.IsDir, tmp_dir.dir.deleteFile(test_dir_name));
testing.expectError(error.IsDir, tmp_dir.dir.readFileAlloc(testing.allocator, test_dir_name, std.math.maxInt(usize)));
// note: the `.write = true` is necessary to ensure the error occurs on all platforms
testing.expectError(error.IsDir, tmp_dir.dir.openFile(test_dir_name, .{ .write = true }));
if (builtin.os.tag != .wasi) {
// TODO: use Dir's realpath function once that exists
const absolute_path = blk: {
const relative_path = try fs.path.join(testing.allocator, &[_][]const u8{ "zig-cache", "tmp", tmp_dir.sub_path[0..], test_dir_name });
defer testing.allocator.free(relative_path);
break :blk try fs.realpathAlloc(testing.allocator, relative_path);
};
defer testing.allocator.free(absolute_path);
testing.expectError(error.IsDir, fs.createFileAbsolute(absolute_path, .{}));
testing.expectError(error.IsDir, fs.deleteFileAbsolute(absolute_path));
}
// ensure the directory still exists as a sanity check
var dir = try tmp_dir.dir.openDir(test_dir_name, .{});
dir.close();
}
test "openSelfExe" {
if (builtin.os.tag == .wasi) return error.SkipZigTest;