split formatted calculations into multiple methods

different applications want to be able to apply different things, so
this gives more control

1 files changed, 77 insertions, 0 deletions

diff --git a/tests/osc.rs b/tests/osc.rs
index f9bcc67..7fd7e82 100644
--- a/tests/osc.rs
+++ b/tests/osc.rs
@@ -5,12 +5,26 @@ fn title() {
     let mut parser = vt100::Parser::default();
     assert_eq!(parser.screen().title(), "");
     assert_eq!(parser.screen().icon_name(), "");
+
+    let screen = parser.screen().clone();
     parser.process(b"\x1b]2;it's a title\x07");
     assert_eq!(parser.screen().title(), "it's a title");
     assert_eq!(parser.screen().icon_name(), "");
+    assert_eq!(
+        parser.screen().title_formatted(),
+        &b"\x1b]2;it's a title\x07"[..]
+    );
+    assert_eq!(
+        parser.screen().title_diff(&screen),
+        &b"\x1b]2;it's a title\x07"[..]
+    );
+
+    let screen = parser.screen().clone();
     parser.process(b"\x1b]2;\x07");
     assert_eq!(parser.screen().title(), "");
     assert_eq!(parser.screen().icon_name(), "");
+    assert_eq!(parser.screen().title_formatted(), &b""[..]);
+    assert_eq!(parser.screen().title_diff(&screen), &b"\x1b]0;\x07"[..]);
 }
 
 #[test]
@@ -18,12 +32,26 @@ fn icon_name() {
     let mut parser = vt100::Parser::default();
     assert_eq!(parser.screen().title(), "");
     assert_eq!(parser.screen().icon_name(), "");
+
+    let screen = parser.screen().clone();
     parser.process(b"\x1b]1;it's an icon name\x07");
     assert_eq!(parser.screen().title(), "");
     assert_eq!(parser.screen().icon_name(), "it's an icon name");
+    assert_eq!(
+        parser.screen().title_formatted(),
+        &b"\x1b]1;it's an icon name\x07"[..]
+    );
+    assert_eq!(
+        parser.screen().title_diff(&screen),
+        &b"\x1b]1;it's an icon name\x07"[..]
+    );
+
+    let screen = parser.screen().clone();
     parser.process(b"\x1b]1;\x07");
     assert_eq!(parser.screen().title(), "");
     assert_eq!(parser.screen().icon_name(), "");
+    assert_eq!(parser.screen().title_formatted(), &b""[..]);
+    assert_eq!(parser.screen().title_diff(&screen), &b"\x1b]0;\x07"[..]);
 }
 
 #[test]
@@ -31,12 +59,61 @@ fn title_icon_name() {
     let mut parser = vt100::Parser::default();
     assert_eq!(parser.screen().title(), "");
     assert_eq!(parser.screen().icon_name(), "");
+
+    let screen = parser.screen().clone();
     parser.process(b"\x1b]0;it's both\x07");
     assert_eq!(parser.screen().title(), "it's both");
     assert_eq!(parser.screen().icon_name(), "it's both");
+    assert_eq!(
+        parser.screen().title_formatted(),
+        &b"\x1b]0;it's both\x07"[..]
+    );
+    assert_eq!(
+        parser.screen().title_diff(&screen),
+        &b"\x1b]0;it's both\x07"[..]
+    );
+
+    let screen = parser.screen().clone();
     parser.process(b"\x1b]0;\x07");
     assert_eq!(parser.screen().title(), "");
     assert_eq!(parser.screen().icon_name(), "");
+    assert_eq!(parser.screen().title_formatted(), &b""[..]);
+    assert_eq!(parser.screen().title_diff(&screen), &b"\x1b]0;\x07"[..]);
+
+    let screen = parser.screen().clone();
+    parser.process(b"\x1b]2;it's a title\x07\x1b]1;it's an icon name\x07");
+    assert_eq!(parser.screen().title(), "it's a title");
+    assert_eq!(parser.screen().icon_name(), "it's an icon name");
+    assert_eq!(
+        parser.screen().title_formatted(),
+        &b"\x1b]1;it's an icon name\x07\x1b]2;it's a title\x07"[..]
+    );
+    assert_eq!(
+        parser.screen().title_diff(&screen),
+        &b"\x1b]1;it's an icon name\x07\x1b]2;it's a title\x07"[..]
+    );
+
+    let screen = parser.screen().clone();
+    parser.process(b"\x1b]1;it's a title\x07");
+    assert_eq!(
+        parser.screen().title_formatted(),
+        &b"\x1b]0;it's a title\x07"[..]
+    );
+    assert_eq!(
+        parser.screen().title_diff(&screen),
+        &b"\x1b]0;it's a title\x07"[..]
+    );
+
+    let screen = parser.screen().clone();
+    parser.process(b"\x1b]1;it's an icon name\x07");
+    assert_eq!(
+        parser.screen().title_formatted(),
+        &b"\x1b]1;it's an icon name\x07\x1b]2;it's a title\x07"[..]
+    );
+    assert_eq!(
+        parser.screen().title_diff(&screen),
+        &b"\x1b]1;it's an icon name\x07"[..]
+    );
 }
 
 #[test]