1 files changed, 23 insertions, 0 deletions
diff --git a/src/ninep/ctl.zig b/src/ninep/ctl.zig
index 2cd865de..eff8003b 100644
--- a/src/ninep/ctl.zig
+++ b/src/ninep/ctl.zig
@@ -1836,6 +1836,29 @@ test "an error's words give the errno a mount reads: EINVAL for what is malforme
     }
 }
 
+test "DumpConfig's whole report writes back to the root ctl, line by line, with no error" {
+    const p = try withFile(testing.allocator, "x\n");
+    defer p.deinit();
+    const root_ctl = @intFromEnum(tree.TopFile.ctl);
+    try testing.expectEqual(Status.ok, wr(p, root_ctl, "DumpConfig\n").reply.status);
+    const report = for (p.panes) |slot| {
+        const pane = slot orelse continue;
+        const f = pane.file orelse continue;
+        const o = f.output orelse continue;
+        if (std.meta.eql(o.from, panes.Output.Origin{ .cmd = .DumpConfig })) break try testing.allocator.dupe(u8, f.content);
+    } else return error.NoDumpConfigPane;
+    defer testing.allocator.free(report);
+    // What this shell cannot show is a comment, never a value it refuses.
+    if (pardes.platform == .tty) try testing.expect(std.mem.indexOf(u8, report, "# GripWidth unsupported\n") != null);
+    var lines = std.mem.splitScalar(u8, report, '\n');
+    while (lines.next()) |line| {
+        if (line.len == 0) continue;
+        const r = wr(p, root_ctl, line);
+        if (r.reply.status != .ok) std.debug.print("refused: {s}: {s}\n", .{ line, r.reply.ename });
+        try testing.expectEqual(Status.ok, r.reply.status);
+    }
+}
+
 test "after a ThemeFile the root ctl and DumpConfig say ThemeFile and its path, which writes back" {
     if (comptime !pardes.hosted) return;
     const gpa = testing.allocator;