From 3bde721b4013136df8076cbb1f5612445cd9808e Mon Sep 17 00:00:00 2001
From: Gabriel Schneider <gbrls@0x4200.cafe>
Date: Wed, 1 Jul 2026 22:44:59 -0300
Subject: tests: add 41 lines of test cases

---
 tests.zig | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

(limited to 'tests.zig')

diff --git a/tests.zig b/tests.zig
index 1ada869d..5abd31eb 100644
--- a/tests.zig
+++ b/tests.zig
@@ -381,6 +381,47 @@ pub fn main(init: std.process.Init) !void {
         return error.SaveDidNotWriteDisk;
     }
 
+    // 10d. Focused save regression: saving a shorter edited buffer must replace the
+    //      file exactly, not merely leave a marker somewhere on disk. This catches
+    //      missed Save dispatch and non-truncating writes.
+    {
+        var hs_save = try Harness.init(gpa, exe.ptr, 24, 80);
+        hs_save.trace = config.trace;
+        defer hs_save.deinit();
+        try h.writeFile("/tmp/pardesE2Esave.txt", "ZZORIG_SAVE_SHOULD_DISAPPEAR_AND_TAIL\n");
+        try hs_save.expectWaitFor("build.zig", 8000, "save regression app never auto-ls'd");
+        try hs_save.resize(30, 100);
+        try hs_save.pump(700);
+        try hs_save.send("\x1b[<0;60;20M\x1b[<0;60;20m"); // pin a blank row, right column -> normal
+        try hs_save.pump(400);
+        try hs_save.send("i");
+        try hs_save.pump(300);
+        try hs_save.send("/tmp/pardesE2Esave.txt");
+        try hs_save.pump(500);
+        try hs_save.send("\x1b"); // -> normal
+        try hs_save.pump(400);
+        try hs_save.send("\x1b[<2;70;20M\x1b[<2;70;20m"); // right-click the path -> open file
+        try hs_save.expectWaitFor("ZZORIG_SAVE_SHOULD_DISAPPEAR", 12000, "save regression file did not open");
+        try hs_save.send("x"); // select the original line
+        try hs_save.pump(300);
+        try hs_save.send("c"); // clear it and enter insert
+        try hs_save.pump(300);
+        try hs_save.send("ZZSAVED_EXACT");
+        try hs_save.pump(500);
+        try hs_save.send("\x1b"); // -> normal
+        try hs_save.pump(500);
+        try hs_save.expectContains("ZZSAVED_EXACT", "save regression edit is not visible before saving");
+        try hs_save.send("\x1b[<1;31;2M\x1b[<1;31;2m"); // middle-click "Save" in the file tag
+        try hs_save.pump(1000);
+        const exact = try std.Io.Dir.cwd().readFileAlloc(io, "/tmp/pardesE2Esave.txt", gpa, .limited(1 << 20));
+        defer gpa.free(exact);
+        if (!std.mem.eql(u8, exact, "ZZSAVED_EXACT\n")) {
+            hs_save.dump("Save command did not replace the file with the exact edited bytes");
+            std.debug.print("saved file bytes: {any}\n", .{exact});
+            return error.SaveDidNotWriteExactDisk;
+        }
+    }
+
     // 11. The Tutor builtin now lives in the GLOBAL tagbar (top row, full width):
     //     "Kill Newcol Tutor Debug". Clicking "Tutor" there spawns the tutor as a
     //     file pane. The tutor is embedded in the binary (@embedFile), so its
-- 
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