From 4b4a9c18e4c55a2ba6558ef614292db9c18ab88a Mon Sep 17 00:00:00 2001
From: Jesse Luehrs <doy@tozt.net>
Date: Tue, 5 Nov 2019 01:32:25 -0500
Subject: expose the screen separately from the parser

---
 tests/mode.rs | 455 ++++++++++++++++++++++++++++++----------------------------
 1 file changed, 238 insertions(+), 217 deletions(-)

(limited to 'tests/mode.rs')

diff --git a/tests/mode.rs b/tests/mode.rs
index 0cca4b7..277cdad 100644
--- a/tests/mode.rs
+++ b/tests/mode.rs
@@ -2,375 +2,396 @@
 
 #[test]
 fn modes() {
-    let mut screen = vt100::Screen::new(24, 80);
-    assert!(!screen.application_keypad());
-    assert!(!screen.application_cursor());
-    assert!(!screen.hide_cursor());
-    assert!(!screen.bracketed_paste());
-    assert_eq!(screen.mouse_protocol_mode(), vt100::MouseProtocolMode::None);
-    assert_eq!(
-        screen.mouse_protocol_encoding(),
+    let mut parser = vt100::Parser::new(24, 80);
+    assert!(!parser.screen().application_keypad());
+    assert!(!parser.screen().application_cursor());
+    assert!(!parser.screen().hide_cursor());
+    assert!(!parser.screen().bracketed_paste());
+    assert_eq!(
+        parser.screen().mouse_protocol_mode(),
+        vt100::MouseProtocolMode::None
+    );
+    assert_eq!(
+        parser.screen().mouse_protocol_encoding(),
         vt100::MouseProtocolEncoding::Default
     );
 
-    screen.process(b"\x1b[?1h");
+    parser.process(b"\x1b[?1h");
 
-    assert!(!screen.application_keypad());
-    assert!(screen.application_cursor());
-    assert!(!screen.hide_cursor());
-    assert!(!screen.bracketed_paste());
-    assert_eq!(screen.mouse_protocol_mode(), vt100::MouseProtocolMode::None);
+    assert!(!parser.screen().application_keypad());
+    assert!(parser.screen().application_cursor());
+    assert!(!parser.screen().hide_cursor());
+    assert!(!parser.screen().bracketed_paste());
+    assert_eq!(
+        parser.screen().mouse_protocol_mode(),
+        vt100::MouseProtocolMode::None
+    );
     assert_eq!(
-        screen.mouse_protocol_encoding(),
+        parser.screen().mouse_protocol_encoding(),
         vt100::MouseProtocolEncoding::Default
     );
 
-    screen.process(b"\x1b[?9h");
+    parser.process(b"\x1b[?9h");
 
-    assert!(!screen.application_keypad());
-    assert!(screen.application_cursor());
-    assert!(!screen.hide_cursor());
-    assert!(!screen.bracketed_paste());
+    assert!(!parser.screen().application_keypad());
+    assert!(parser.screen().application_cursor());
+    assert!(!parser.screen().hide_cursor());
+    assert!(!parser.screen().bracketed_paste());
     assert_eq!(
-        screen.mouse_protocol_mode(),
+        parser.screen().mouse_protocol_mode(),
         vt100::MouseProtocolMode::Press
     );
     assert_eq!(
-        screen.mouse_protocol_encoding(),
+        parser.screen().mouse_protocol_encoding(),
         vt100::MouseProtocolEncoding::Default
     );
 
-    screen.process(b"\x1b[?25l");
+    parser.process(b"\x1b[?25l");
 
-    assert!(!screen.application_keypad());
-    assert!(screen.application_cursor());
-    assert!(screen.hide_cursor());
-    assert!(!screen.bracketed_paste());
+    assert!(!parser.screen().application_keypad());
+    assert!(parser.screen().application_cursor());
+    assert!(parser.screen().hide_cursor());
+    assert!(!parser.screen().bracketed_paste());
     assert_eq!(
-        screen.mouse_protocol_mode(),
+        parser.screen().mouse_protocol_mode(),
         vt100::MouseProtocolMode::Press
     );
     assert_eq!(
-        screen.mouse_protocol_encoding(),
+        parser.screen().mouse_protocol_encoding(),
         vt100::MouseProtocolEncoding::Default
     );
 
-    screen.process(b"\x1b[?1000h");
+    parser.process(b"\x1b[?1000h");
 
-    assert!(!screen.application_keypad());
-    assert!(screen.application_cursor());
-    assert!(screen.hide_cursor());
-    assert!(!screen.bracketed_paste());
+    assert!(!parser.screen().application_keypad());
+    assert!(parser.screen().application_cursor());
+    assert!(parser.screen().hide_cursor());
+    assert!(!parser.screen().bracketed_paste());
     assert_eq!(
-        screen.mouse_protocol_mode(),
+        parser.screen().mouse_protocol_mode(),
         vt100::MouseProtocolMode::PressRelease
     );
     assert_eq!(
-        screen.mouse_protocol_encoding(),
+        parser.screen().mouse_protocol_encoding(),
         vt100::MouseProtocolEncoding::Default
     );
 
-    screen.process(b"\x1b[?1002h");
+    parser.process(b"\x1b[?1002h");
 
-    assert!(!screen.application_keypad());
-    assert!(screen.application_cursor());
-    assert!(screen.hide_cursor());
-    assert!(!screen.bracketed_paste());
+    assert!(!parser.screen().application_keypad());
+    assert!(parser.screen().application_cursor());
+    assert!(parser.screen().hide_cursor());
+    assert!(!parser.screen().bracketed_paste());
     assert_eq!(
-        screen.mouse_protocol_mode(),
+        parser.screen().mouse_protocol_mode(),
         vt100::MouseProtocolMode::ButtonMotion
     );
     assert_eq!(
-        screen.mouse_protocol_encoding(),
+        parser.screen().mouse_protocol_encoding(),
         vt100::MouseProtocolEncoding::Default
     );
 
-    screen.process(b"\x1b[?1003h");
+    parser.process(b"\x1b[?1003h");
 
-    assert!(!screen.application_keypad());
-    assert!(screen.application_cursor());
-    assert!(screen.hide_cursor());
-    assert!(!screen.bracketed_paste());
+    assert!(!parser.screen().application_keypad());
+    assert!(parser.screen().application_cursor());
+    assert!(parser.screen().hide_cursor());
+    assert!(!parser.screen().bracketed_paste());
     assert_eq!(
-        screen.mouse_protocol_mode(),
+        parser.screen().mouse_protocol_mode(),
         vt100::MouseProtocolMode::AnyMotion
     );
     assert_eq!(
-        screen.mouse_protocol_encoding(),
+        parser.screen().mouse_protocol_encoding(),
         vt100::MouseProtocolEncoding::Default
     );
 
-    screen.process(b"\x1b[?1005h");
+    parser.process(b"\x1b[?1005h");
 
-    assert!(!screen.application_keypad());
-    assert!(screen.application_cursor());
-    assert!(screen.hide_cursor());
-    assert!(!screen.bracketed_paste());
+    assert!(!parser.screen().application_keypad());
+    assert!(parser.screen().application_cursor());
+    assert!(parser.screen().hide_cursor());
+    assert!(!parser.screen().bracketed_paste());
     assert_eq!(
-        screen.mouse_protocol_mode(),
+        parser.screen().mouse_protocol_mode(),
         vt100::MouseProtocolMode::AnyMotion
     );
     assert_eq!(
-        screen.mouse_protocol_encoding(),
+        parser.screen().mouse_protocol_encoding(),
         vt100::MouseProtocolEncoding::Utf8
     );
 
-    screen.process(b"\x1b[?1006h");
+    parser.process(b"\x1b[?1006h");
 
-    assert!(!screen.application_keypad());
-    assert!(screen.application_cursor());
-    assert!(screen.hide_cursor());
-    assert!(!screen.bracketed_paste());
+    assert!(!parser.screen().application_keypad());
+    assert!(parser.screen().application_cursor());
+    assert!(parser.screen().hide_cursor());
+    assert!(!parser.screen().bracketed_paste());
     assert_eq!(
-        screen.mouse_protocol_mode(),
+        parser.screen().mouse_protocol_mode(),
         vt100::MouseProtocolMode::AnyMotion
     );
     assert_eq!(
-        screen.mouse_protocol_encoding(),
+        parser.screen().mouse_protocol_encoding(),
         vt100::MouseProtocolEncoding::Sgr
     );
 
-    screen.process(b"\x1b[?2004h");
+    parser.process(b"\x1b[?2004h");
 
-    assert!(!screen.application_keypad());
-    assert!(screen.application_cursor());
-    assert!(screen.hide_cursor());
-    assert!(screen.bracketed_paste());
+    assert!(!parser.screen().application_keypad());
+    assert!(parser.screen().application_cursor());
+    assert!(parser.screen().hide_cursor());
+    assert!(parser.screen().bracketed_paste());
     assert_eq!(
-        screen.mouse_protocol_mode(),
+        parser.screen().mouse_protocol_mode(),
         vt100::MouseProtocolMode::AnyMotion
     );
     assert_eq!(
-        screen.mouse_protocol_encoding(),
+        parser.screen().mouse_protocol_encoding(),
         vt100::MouseProtocolEncoding::Sgr
     );
 
-    screen.process(b"\x1b=");
+    parser.process(b"\x1b=");
 
-    assert!(screen.application_keypad());
-    assert!(screen.application_cursor());
-    assert!(screen.hide_cursor());
-    assert!(screen.bracketed_paste());
+    assert!(parser.screen().application_keypad());
+    assert!(parser.screen().application_cursor());
+    assert!(parser.screen().hide_cursor());
+    assert!(parser.screen().bracketed_paste());
     assert_eq!(
-        screen.mouse_protocol_mode(),
+        parser.screen().mouse_protocol_mode(),
         vt100::MouseProtocolMode::AnyMotion
     );
     assert_eq!(
-        screen.mouse_protocol_encoding(),
+        parser.screen().mouse_protocol_encoding(),
         vt100::MouseProtocolEncoding::Sgr
     );
 
-    screen.process(b"\x1b[?1l");
+    parser.process(b"\x1b[?1l");
 
-    assert!(screen.application_keypad());
-    assert!(!screen.application_cursor());
-    assert!(screen.hide_cursor());
-    assert!(screen.bracketed_paste());
+    assert!(parser.screen().application_keypad());
+    assert!(!parser.screen().application_cursor());
+    assert!(parser.screen().hide_cursor());
+    assert!(parser.screen().bracketed_paste());
     assert_eq!(
-        screen.mouse_protocol_mode(),
+        parser.screen().mouse_protocol_mode(),
         vt100::MouseProtocolMode::AnyMotion
     );
     assert_eq!(
-        screen.mouse_protocol_encoding(),
+        parser.screen().mouse_protocol_encoding(),
         vt100::MouseProtocolEncoding::Sgr
     );
 
-    screen.process(b"\x1b[?9l");
+    parser.process(b"\x1b[?9l");
 
-    assert!(screen.application_keypad());
-    assert!(!screen.application_cursor());
-    assert!(screen.hide_cursor());
-    assert!(screen.bracketed_paste());
+    assert!(parser.screen().application_keypad());
+    assert!(!parser.screen().application_cursor());
+    assert!(parser.screen().hide_cursor());
+    assert!(parser.screen().bracketed_paste());
     assert_eq!(
-        screen.mouse_protocol_mode(),
+        parser.screen().mouse_protocol_mode(),
         vt100::MouseProtocolMode::AnyMotion
     );
     assert_eq!(
-        screen.mouse_protocol_encoding(),
+        parser.screen().mouse_protocol_encoding(),
         vt100::MouseProtocolEncoding::Sgr
     );
 
-    screen.process(b"\x1b[?25h");
+    parser.process(b"\x1b[?25h");
 
-    assert!(screen.application_keypad());
-    assert!(!screen.application_cursor());
-    assert!(!screen.hide_cursor());
-    assert!(screen.bracketed_paste());
+    assert!(parser.screen().application_keypad());
+    assert!(!parser.screen().application_cursor());
+    assert!(!parser.screen().hide_cursor());
+    assert!(parser.screen().bracketed_paste());
     assert_eq!(
-        screen.mouse_protocol_mode(),
+        parser.screen().mouse_protocol_mode(),
         vt100::MouseProtocolMode::AnyMotion
     );
     assert_eq!(
-        screen.mouse_protocol_encoding(),
+        parser.screen().mouse_protocol_encoding(),
         vt100::MouseProtocolEncoding::Sgr
     );
 
-    screen.process(b"\x1b[?1000l");
+    parser.process(b"\x1b[?1000l");
 
-    assert!(screen.application_keypad());
-    assert!(!screen.application_cursor());
-    assert!(!screen.hide_cursor());
-    assert!(screen.bracketed_paste());
+    assert!(parser.screen().application_keypad());
+    assert!(!parser.screen().application_cursor());
+    assert!(!parser.screen().hide_cursor());
+    assert!(parser.screen().bracketed_paste());
     assert_eq!(
-        screen.mouse_protocol_mode(),
+        parser.screen().mouse_protocol_mode(),
         vt100::MouseProtocolMode::AnyMotion
     );
     assert_eq!(
-        screen.mouse_protocol_encoding(),
+        parser.screen().mouse_protocol_encoding(),
         vt100::MouseProtocolEncoding::Sgr
     );
 
-    screen.process(b"\x1b[?1002l");
+    parser.process(b"\x1b[?1002l");
 
-    assert!(screen.application_keypad());
-    assert!(!screen.application_cursor());
-    assert!(!screen.hide_cursor());
-    assert!(screen.bracketed_paste());
+    assert!(parser.screen().application_keypad());
+    assert!(!parser.screen().application_cursor());
+    assert!(!parser.screen().hide_cursor());
+    assert!(parser.screen().bracketed_paste());
     assert_eq!(
-        screen.mouse_protocol_mode(),
+        parser.screen().mouse_protocol_mode(),
         vt100::MouseProtocolMode::AnyMotion
     );
     assert_eq!(
-        screen.mouse_protocol_encoding(),
+        parser.screen().mouse_protocol_encoding(),
         vt100::MouseProtocolEncoding::Sgr
     );
 
-    screen.process(b"\x1b[?1003l");
+    parser.process(b"\x1b[?1003l");
 
-    assert!(screen.application_keypad());
-    assert!(!screen.application_cursor());
-    assert!(!screen.hide_cursor());
-    assert!(screen.bracketed_paste());
-    assert_eq!(screen.mouse_protocol_mode(), vt100::MouseProtocolMode::None);
+    assert!(parser.screen().application_keypad());
+    assert!(!parser.screen().application_cursor());
+    assert!(!parser.screen().hide_cursor());
+    assert!(parser.screen().bracketed_paste());
+    assert_eq!(
+        parser.screen().mouse_protocol_mode(),
+        vt100::MouseProtocolMode::None
+    );
     assert_eq!(
-        screen.mouse_protocol_encoding(),
+        parser.screen().mouse_protocol_encoding(),
         vt100::MouseProtocolEncoding::Sgr
     );
 
-    screen.process(b"\x1b[?1005l");
+    parser.process(b"\x1b[?1005l");
 
-    assert!(screen.application_keypad());
-    assert!(!screen.application_cursor());
-    assert!(!screen.hide_cursor());
-    assert!(screen.bracketed_paste());
-    assert_eq!(screen.mouse_protocol_mode(), vt100::MouseProtocolMode::None);
+    assert!(parser.screen().application_keypad());
+    assert!(!parser.screen().application_cursor());
+    assert!(!parser.screen().hide_cursor());
+    assert!(parser.screen().bracketed_paste());
     assert_eq!(
-        screen.mouse_protocol_encoding(),
+        parser.screen().mouse_protocol_mode(),
+        vt100::MouseProtocolMode::None
+    );
+    assert_eq!(
+        parser.screen().mouse_protocol_encoding(),
         vt100::MouseProtocolEncoding::Sgr
     );
 
-    screen.process(b"\x1b[?1006l");
+    parser.process(b"\x1b[?1006l");
 
-    assert!(screen.application_keypad());
-    assert!(!screen.application_cursor());
-    assert!(!screen.hide_cursor());
-    assert!(screen.bracketed_paste());
-    assert_eq!(screen.mouse_protocol_mode(), vt100::MouseProtocolMode::None);
+    assert!(parser.screen().application_keypad());
+    assert!(!parser.screen().application_cursor());
+    assert!(!parser.screen().hide_cursor());
+    assert!(parser.screen().bracketed_paste());
+    assert_eq!(
+        parser.screen().mouse_protocol_mode(),
+        vt100::MouseProtocolMode::None
+    );
     assert_eq!(
-        screen.mouse_protocol_encoding(),
+        parser.screen().mouse_protocol_encoding(),
         vt100::MouseProtocolEncoding::Default
     );
 
-    screen.process(b"\x1b[?2004l");
+    parser.process(b"\x1b[?2004l");
 
-    assert!(screen.application_keypad());
-    assert!(!screen.application_cursor());
-    assert!(!screen.hide_cursor());
-    assert!(!screen.bracketed_paste());
-    assert_eq!(screen.mouse_protocol_mode(), vt100::MouseProtocolMode::None);
+    assert!(parser.screen().application_keypad());
+    assert!(!parser.screen().application_cursor());
+    assert!(!parser.screen().hide_cursor());
+    assert!(!parser.screen().bracketed_paste());
     assert_eq!(
-        screen.mouse_protocol_encoding(),
+        parser.screen().mouse_protocol_mode(),
+        vt100::MouseProtocolMode::None
+    );
+    assert_eq!(
+        parser.screen().mouse_protocol_encoding(),
         vt100::MouseProtocolEncoding::Default
     );
 
-    screen.process(b"\x1b>");
+    parser.process(b"\x1b>");
 
-    assert!(!screen.application_keypad());
-    assert!(!screen.application_cursor());
-    assert!(!screen.hide_cursor());
-    assert!(!screen.bracketed_paste());
-    assert_eq!(screen.mouse_protocol_mode(), vt100::MouseProtocolMode::None);
+    assert!(!parser.screen().application_keypad());
+    assert!(!parser.screen().application_cursor());
+    assert!(!parser.screen().hide_cursor());
+    assert!(!parser.screen().bracketed_paste());
+    assert_eq!(
+        parser.screen().mouse_protocol_mode(),
+        vt100::MouseProtocolMode::None
+    );
     assert_eq!(
-        screen.mouse_protocol_encoding(),
+        parser.screen().mouse_protocol_encoding(),
         vt100::MouseProtocolEncoding::Default
     );
 }
 
 #[test]
 fn alternate_buffer() {
-    let mut screen = vt100::Screen::new(24, 80);
+    let mut parser = vt100::Parser::new(24, 80);
 
     // 47
 
-    screen.process(b"\x1bc");
-    assert_eq!(screen.contents(0, 0, 23, 79), "");
-    assert_eq!(screen.cursor_position(), (0, 0));
-    assert!(!screen.alternate_screen());
-
-    screen.process(b"\x1b[m\x1b[2J\x1b[H1\r\n2\r\n3\r\n4\r\n5\r\n6\r\n7\r\n8\r\n9\r\n10\r\n11\r\n12\r\n13\r\n14\r\n15\r\n16\r\n17\r\n18\r\n19\r\n20\r\n21\r\n22\r\n23\r\n24");
-    assert_eq!(screen.contents(0, 0, 23, 79), "1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\n13\n14\n15\n16\n17\n18\n19\n20\n21\n22\n23\n24");
-    assert_eq!(screen.cursor_position(), (23, 2));
-    assert!(!screen.alternate_screen());
-
-    screen.process(b"\x1b[?47h");
-    assert_eq!(screen.contents(0, 0, 23, 79), "");
-    assert_eq!(screen.cursor_position(), (0, 0));
-    assert!(screen.alternate_screen());
-
-    screen.process(b"foobar");
-    assert_eq!(screen.contents(0, 0, 23, 79), "foobar");
-    assert_eq!(screen.cursor_position(), (0, 6));
-    assert!(screen.alternate_screen());
-
-    screen.process(b"\x1b[?47l");
-    assert_eq!(screen.contents(0, 0, 23, 79), "1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\n13\n14\n15\n16\n17\n18\n19\n20\n21\n22\n23\n24");
-    assert_eq!(screen.cursor_position(), (23, 2));
-    assert!(!screen.alternate_screen());
-
-    screen.process(b"\x1b[?47h");
-    assert_eq!(screen.contents(0, 0, 23, 79), "foobar");
-    assert_eq!(screen.cursor_position(), (0, 6));
-    assert!(screen.alternate_screen());
-
-    screen.process(b"\x1b[?47l");
-    assert_eq!(screen.contents(0, 0, 23, 79), "1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\n13\n14\n15\n16\n17\n18\n19\n20\n21\n22\n23\n24");
-    assert_eq!(screen.cursor_position(), (23, 2));
-    assert!(!screen.alternate_screen());
+    parser.process(b"\x1bc");
+    assert_eq!(parser.screen().contents(0, 0, 23, 79), "");
+    assert_eq!(parser.screen().cursor_position(), (0, 0));
+    assert!(!parser.screen().alternate_screen());
+
+    parser.process(b"\x1b[m\x1b[2J\x1b[H1\r\n2\r\n3\r\n4\r\n5\r\n6\r\n7\r\n8\r\n9\r\n10\r\n11\r\n12\r\n13\r\n14\r\n15\r\n16\r\n17\r\n18\r\n19\r\n20\r\n21\r\n22\r\n23\r\n24");
+    assert_eq!(parser.screen().contents(0, 0, 23, 79), "1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\n13\n14\n15\n16\n17\n18\n19\n20\n21\n22\n23\n24");
+    assert_eq!(parser.screen().cursor_position(), (23, 2));
+    assert!(!parser.screen().alternate_screen());
+
+    parser.process(b"\x1b[?47h");
+    assert_eq!(parser.screen().contents(0, 0, 23, 79), "");
+    assert_eq!(parser.screen().cursor_position(), (0, 0));
+    assert!(parser.screen().alternate_screen());
+
+    parser.process(b"foobar");
+    assert_eq!(parser.screen().contents(0, 0, 23, 79), "foobar");
+    assert_eq!(parser.screen().cursor_position(), (0, 6));
+    assert!(parser.screen().alternate_screen());
+
+    parser.process(b"\x1b[?47l");
+    assert_eq!(parser.screen().contents(0, 0, 23, 79), "1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\n13\n14\n15\n16\n17\n18\n19\n20\n21\n22\n23\n24");
+    assert_eq!(parser.screen().cursor_position(), (23, 2));
+    assert!(!parser.screen().alternate_screen());
+
+    parser.process(b"\x1b[?47h");
+    assert_eq!(parser.screen().contents(0, 0, 23, 79), "foobar");
+    assert_eq!(parser.screen().cursor_position(), (0, 6));
+    assert!(parser.screen().alternate_screen());
+
+    parser.process(b"\x1b[?47l");
+    assert_eq!(parser.screen().contents(0, 0, 23, 79), "1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\n13\n14\n15\n16\n17\n18\n19\n20\n21\n22\n23\n24");
+    assert_eq!(parser.screen().cursor_position(), (23, 2));
+    assert!(!parser.screen().alternate_screen());
 
     // 1049
 
-    screen.process(b"\x1bc");
-    assert_eq!(screen.contents(0, 0, 23, 79), "");
-    assert_eq!(screen.cursor_position(), (0, 0));
-    assert!(!screen.alternate_screen());
-
-    screen.process(b"\x1b[m\x1b[2J\x1b[H1\r\n2\r\n3\r\n4\r\n5\r\n6\r\n7\r\n8\r\n9\r\n10\r\n11\r\n12\r\n13\r\n14\r\n15\r\n16\r\n17\r\n18\r\n19\r\n20\r\n21\r\n22\r\n23\r\n24");
-    assert_eq!(screen.contents(0, 0, 23, 79), "1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\n13\n14\n15\n16\n17\n18\n19\n20\n21\n22\n23\n24");
-    assert_eq!(screen.cursor_position(), (23, 2));
-    assert!(!screen.alternate_screen());
-
-    screen.process(b"\x1b[?1049h");
-    assert_eq!(screen.contents(0, 0, 23, 79), "");
-    assert_eq!(screen.cursor_position(), (0, 0));
-    assert!(screen.alternate_screen());
-
-    screen.process(b"foobar");
-    assert_eq!(screen.contents(0, 0, 23, 79), "foobar");
-    assert_eq!(screen.cursor_position(), (0, 6));
-    assert!(screen.alternate_screen());
-
-    screen.process(b"\x1b[?1049l");
-    assert_eq!(screen.contents(0, 0, 23, 79), "1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\n13\n14\n15\n16\n17\n18\n19\n20\n21\n22\n23\n24");
-    assert_eq!(screen.cursor_position(), (23, 2));
-    assert!(!screen.alternate_screen());
-
-    screen.process(b"\x1b[?1049h");
-    assert_eq!(screen.contents(0, 0, 23, 79), "");
-    assert_eq!(screen.cursor_position(), (0, 0));
-    assert!(screen.alternate_screen());
-
-    screen.process(b"\x1b[?1049l");
-    assert_eq!(screen.contents(0, 0, 23, 79), "1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\n13\n14\n15\n16\n17\n18\n19\n20\n21\n22\n23\n24");
-    assert_eq!(screen.cursor_position(), (23, 2));
-    assert!(!screen.alternate_screen());
+    parser.process(b"\x1bc");
+    assert_eq!(parser.screen().contents(0, 0, 23, 79), "");
+    assert_eq!(parser.screen().cursor_position(), (0, 0));
+    assert!(!parser.screen().alternate_screen());
+
+    parser.process(b"\x1b[m\x1b[2J\x1b[H1\r\n2\r\n3\r\n4\r\n5\r\n6\r\n7\r\n8\r\n9\r\n10\r\n11\r\n12\r\n13\r\n14\r\n15\r\n16\r\n17\r\n18\r\n19\r\n20\r\n21\r\n22\r\n23\r\n24");
+    assert_eq!(parser.screen().contents(0, 0, 23, 79), "1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\n13\n14\n15\n16\n17\n18\n19\n20\n21\n22\n23\n24");
+    assert_eq!(parser.screen().cursor_position(), (23, 2));
+    assert!(!parser.screen().alternate_screen());
+
+    parser.process(b"\x1b[?1049h");
+    assert_eq!(parser.screen().contents(0, 0, 23, 79), "");
+    assert_eq!(parser.screen().cursor_position(), (0, 0));
+    assert!(parser.screen().alternate_screen());
+
+    parser.process(b"foobar");
+    assert_eq!(parser.screen().contents(0, 0, 23, 79), "foobar");
+    assert_eq!(parser.screen().cursor_position(), (0, 6));
+    assert!(parser.screen().alternate_screen());
+
+    parser.process(b"\x1b[?1049l");
+    assert_eq!(parser.screen().contents(0, 0, 23, 79), "1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\n13\n14\n15\n16\n17\n18\n19\n20\n21\n22\n23\n24");
+    assert_eq!(parser.screen().cursor_position(), (23, 2));
+    assert!(!parser.screen().alternate_screen());
+
+    parser.process(b"\x1b[?1049h");
+    assert_eq!(parser.screen().contents(0, 0, 23, 79), "");
+    assert_eq!(parser.screen().cursor_position(), (0, 0));
+    assert!(parser.screen().alternate_screen());
+
+    parser.process(b"\x1b[?1049l");
+    assert_eq!(parser.screen().contents(0, 0, 23, 79), "1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\n13\n14\n15\n16\n17\n18\n19\n20\n21\n22\n23\n24");
+    assert_eq!(parser.screen().cursor_position(), (23, 2));
+    assert!(!parser.screen().alternate_screen());
 }
-- 
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