1 files changed, 40 insertions, 0 deletions
diff --git a/src/ninep/ctl.zig b/src/ninep/ctl.zig
index f4aff960..1a2dbdbc 100644
--- a/src/ninep/ctl.zig
+++ b/src/ninep/ctl.zig
@@ -4213,3 +4213,43 @@ test "Petscii, Palette and Ascii take the state their tag word names, set rather
     _ = wr(p, ctl_node, "Petscii maybe\n");
     try testing.expect(th.logHas(p, "Petscii takes on or off"));
 }
+
+test "a Restore reads a clean file from disk; an unsaved one whose file changed since is said so, and its first Save asks" {
+    if (comptime !pardes.hosted) return;
+    const gpa = testing.allocator;
+    var tmp = testing.tmpDir(.{});
+    defer tmp.cleanup();
+    try tmp.dir.writeFile(testing.io, .{ .sub_path = "a.txt", .data = "one\n" });
+    var dir_buf: [4096]u8 = undefined;
+    const dir = dir_buf[0..try tmp.dir.realPath(testing.io, &dir_buf)];
+    var path_buf: [4200]u8 = undefined;
+    const path = try std.fmt.bufPrint(&path_buf, "{s}/a.txt", .{dir});
+    const p = try Pardes.init(gpa, .{ .file = path, .tty_only = true, .cols = 80, .rows = 24 });
+    defer p.deinit();
+    // Clean: the dump keeps no text, and the newer disk is what comes back.
+    try pardes.dump.dumpState(p);
+    try testing.expect(std.mem.indexOf(u8, p.dump_out.?, "b25lCg==") == null); // "one\n" in base64
+    try tmp.dir.writeFile(testing.io, .{ .sub_path = "a.txt", .data = "two\n" });
+    {
+        const restored = try pardes.dump.restore(p, p.dump_out.?, "/tmp/pardes.dump.zon");
+        defer restored.deinit();
+        const f = pane_files.fileOf(restored.panes[0].?).?;
+        try testing.expectEqualStrings("two\n", f.content);
+        try testing.expectEqual(f.saved_revision, f.revision);
+    }
+    // Unsaved: its text comes back, the disk changed under it is said, and
+    // Save asks once before overwriting it.
+    const f = pane_files.fileOf(p.panes[0].?).?;
+    const edited = try gpa.dupe(u8, "edited\n");
+    pardes.panes.File.setContent(p, f, edited);
+    try testing.expect(f.revision != f.saved_revision);
+    try pardes.dump.dumpState(p);
+    try tmp.dir.writeFile(testing.io, .{ .sub_path = "a.txt", .data = "three\n" });
+    const restored = try pardes.dump.restore(p, p.dump_out.?, "/tmp/pardes.dump.zon");
+    defer restored.deinit();
+    const rf = pane_files.fileOf(restored.panes[0].?).?;
+    try testing.expectEqualStrings("edited\n", rf.content);
+    try testing.expect(rf.disk_newer != null);
+    pardes.exec.saveFile(restored, 0);
+    try testing.expect(th.logHas(restored, "modified on disk since read (Save again to overwrite)"));
+}