test: Add regression test for multiple multiline removal

Author: Muscraft

tests/color/main.rs

@@ -13,6 +13,7 @@ mod highlight_source;
 mod issue_9;
 mod multiline_removal_suggestion;
 mod multiple_annotations;
+mod multiple_multiline_removal;
 mod primary_title_second_group;
 mod simple;
 mod strip_line;

tests/color/multiple_multiline_removal.ascii.term.svg

@@ -0,0 +1,93 @@
+use annotate_snippets::{
+    renderer::DecorStyle, AnnotationKind, Level, Origin, Padding, Patch, Renderer, Snippet,
+};
+
+use snapbox::{assert_data_eq, file};
+
+#[test]
+fn case() {
+    // https://github.com/rust-lang/rust/blob/4b94758d2ba7d0ef71ccf5fde29ce4bc5d6fe2a4/tests/ui/suggestions/multi-suggestion.rs
+
+    let source = r#"#![allow(dead_code)]
+struct U <T> {
+    wtf: Option<Box<U<T>>>,
+    x: T,
+}
+fn main() {
+    U {
+        wtf: Some(Box(U {
+            wtf: None,
+            x: (),
+        })),
+        x: ()
+    };
+    let _ = std::collections::HashMap();
+    let _ = std::collections::HashMap {};
+    let _ = Box {};
+}
+"#;
+    let path = "$DIR/suggest-box-new.rs";
+    let secondary_path = "$SRC_DIR/alloc/src/boxed.rs";
+
+    let report = &[
+        Level::ERROR
+            .primary_title("cannot initialize a tuple struct which contains private fields")
+            .id("E0423")
+            .element(
+                Snippet::source(source)
+                    .path(path)
+                    .annotation(AnnotationKind::Primary.span(114..117)),
+            ),
+        Level::NOTE
+            .secondary_title("constructor is not visible here due to private fields")
+            .element(Origin::path(secondary_path).line(234).char_column(2))
+            .element(Padding)
+            .element(Level::NOTE.message("private field"))
+            .element(Padding)
+            .element(Level::NOTE.message("private field")),
+        Level::HELP
+            .secondary_title(
+                "you might have meant to use an associated function to build this type",
+            )
+            .element(
+                Snippet::source(source)
+                    .path(path)
+                    .patch(Patch::new(117..174, "::new(_)")),
+            )
+            .element(
+                Snippet::source(source)
+                    .path(path)
+                    .patch(Patch::new(117..174, "::new_uninit()")),
+            )
+            .element(
+                Snippet::source(source)
+                    .path(path)
+                    .patch(Patch::new(117..174, "::new_zeroed()")),
+            )
+            .element(
+                Snippet::source(source)
+                    .path(path)
+                    .patch(Patch::new(117..174, "::new_in(_, _)")),
+            )
+            .element(Level::NOTE.no_name().message("and 12 other candidates")),
+        Level::HELP
+            .secondary_title("consider using the `Default` trait")
+            .element(
+                Snippet::source(source)
+                    .path(path)
+                    .patch(Patch::new(114..114, "<"))
+                    .patch(Patch::new(
+                        117..174,
+                        " as std::default::Default>::default()",
+                    )),
+            ),
+    ];
+
+    let expected_ascii = file!["multiple_multiline_removal.ascii.term.svg": TermSvg];
+    let renderer = Renderer::styled();
+    assert_data_eq!(renderer.render(report), expected_ascii);
+
+    let expected_unicode = file!["multiple_multiline_removal.unicode.term.svg": TermSvg];
+    let renderer = renderer.decor_style(DecorStyle::Unicode);
+    assert_data_eq!(renderer.render(report), expected_unicode);
+}