From 07639e48ab4d509f7e219070644f7e45b0cc8271 Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Thu, 29 Feb 2024 10:46:55 -0800
Subject: [PATCH] terminal/new: more screen tests

---
 src/terminal/Screen.zig     |  3 ++
 src/terminal/new/Screen.zig | 55 +++++++++++++++++++++++++++++++++++++
 2 files changed, 58 insertions(+)

diff --git a/src/terminal/Screen.zig b/src/terminal/Screen.zig
index 0bdb7a285..9e7c92861 100644
--- a/src/terminal/Screen.zig
+++ b/src/terminal/Screen.zig
@@ -5414,6 +5414,7 @@ test "Screen: scrollRegionUp buffer wrap alternative with extra lines" {
     }
 }
 
+// X
 test "Screen: clear history with no history" {
     const testing = std.testing;
     const alloc = testing.allocator;
@@ -5438,6 +5439,7 @@ test "Screen: clear history with no history" {
     }
 }
 
+// X
 test "Screen: clear history" {
     const testing = std.testing;
     const alloc = testing.allocator;
@@ -5472,6 +5474,7 @@ test "Screen: clear history" {
     }
 }
 
+// X
 test "Screen: clear above cursor" {
     const testing = std.testing;
     const alloc = testing.allocator;
diff --git a/src/terminal/new/Screen.zig b/src/terminal/new/Screen.zig
index 4aa67e3a3..46a47f829 100644
--- a/src/terminal/new/Screen.zig
+++ b/src/terminal/new/Screen.zig
@@ -1709,3 +1709,58 @@ test "Screen: clear history" {
         try testing.expectEqualStrings("4ABCD\n5EFGH\n6IJKL", contents);
     }
 }
+
+test "Screen: clear above cursor" {
+    const testing = std.testing;
+    const alloc = testing.allocator;
+
+    var s = try init(alloc, 10, 10, 3);
+    defer s.deinit();
+    try s.testWriteString("4ABCD\n5EFGH\n6IJKL");
+    s.clearRows(
+        .{ .active = .{ .y = 0 } },
+        .{ .active = .{ .y = s.cursor.y - 1 } },
+        false,
+    );
+    {
+        const contents = try s.dumpStringAlloc(alloc, .{ .viewport = .{} });
+        defer alloc.free(contents);
+        try testing.expectEqualStrings("\n\n6IJKL", contents);
+    }
+    {
+        const contents = try s.dumpStringAlloc(alloc, .{ .screen = .{} });
+        defer alloc.free(contents);
+        try testing.expectEqualStrings("\n\n6IJKL", contents);
+    }
+
+    try testing.expectEqual(@as(usize, 5), s.cursor.x);
+    try testing.expectEqual(@as(usize, 2), s.cursor.y);
+}
+
+test "Screen: clear above cursor with history" {
+    const testing = std.testing;
+    const alloc = testing.allocator;
+
+    var s = try init(alloc, 10, 3, 3);
+    defer s.deinit();
+    try s.testWriteString("1ABCD\n2EFGH\n3IJKL\n");
+    try s.testWriteString("4ABCD\n5EFGH\n6IJKL");
+    s.clearRows(
+        .{ .active = .{ .y = 0 } },
+        .{ .active = .{ .y = s.cursor.y - 1 } },
+        false,
+    );
+    {
+        const contents = try s.dumpStringAlloc(alloc, .{ .viewport = .{} });
+        defer alloc.free(contents);
+        try testing.expectEqualStrings("\n\n6IJKL", contents);
+    }
+    {
+        const contents = try s.dumpStringAlloc(alloc, .{ .screen = .{} });
+        defer alloc.free(contents);
+        try testing.expectEqualStrings("1ABCD\n2EFGH\n3IJKL\n\n\n6IJKL", contents);
+    }
+
+    try testing.expectEqual(@as(usize, 5), s.cursor.x);
+    try testing.expectEqual(@as(usize, 2), s.cursor.y);
+}