test: Add tests for highlight duplicated diff lines

Author: Muscraft

tests/color/highlight_duplicated_diff_lines.ascii.term.svg

@@ -0,0 +1,75 @@
+use annotate_snippets::{renderer::DecorStyle, AnnotationKind, Level, Patch, Renderer, Snippet};
+
+use snapbox::{assert_data_eq, file};
+
+#[test]
+fn case() {
+    // https://github.com/rust-lang/rust/blob/4b94758d2ba7d0ef71ccf5fde29ce4bc5d6fe2a4/tests/ui/argument-suggestions/wrong-highlight-span-extra-arguments-147070.rs
+
+    let source = r#"struct Thingie;
+
+impl Thingie {
+    pub(crate) fn new(
+        _a: String,
+        _b: String,
+        _c: String,
+        _d: String,
+        _e: String,
+        _f: String,
+    ) -> Self {
+        unimplemented!()
+    }
+}
+
+fn main() {
+    let foo = Thingie::new(
+        String::from(""),
+        String::from(""),
+        String::from(""),
+        String::from(""),
+        String::from(""),
+        String::from(""),
+        String::from(""),
+    );
+}"#;
+
+    let path = "$DIR/wrong-highlight-span-extra-arguments-147070.rs";
+
+    let report = &[
+        Level::ERROR
+            .primary_title("this function takes 6 arguments but 7 arguments were supplied")
+            .id("E0061")
+            .element(
+                Snippet::source(source)
+                    .path(path)
+                    .annotation(
+                        AnnotationKind::Context
+                            .span(429..445)
+                            .label("unexpected argument #7 of type `String`"),
+                    )
+                    .annotation(AnnotationKind::Primary.span(251..263)),
+            ),
+        Level::NOTE
+            .secondary_title("associated function defined here")
+            .element(
+                Snippet::source(source)
+                    .path(path)
+                    .annotation(AnnotationKind::Primary.span(50..53)),
+            ),
+        Level::HELP
+            .secondary_title("remove the extra argument")
+            .element(
+                Snippet::source(source)
+                    .path(path)
+                    .patch(Patch::new(419..445, "")),
+            ),
+    ];
+
+    let expected_ascii = file!["highlight_duplicated_diff_lines.ascii.term.svg": TermSvg];
+    let renderer = Renderer::styled();
+    assert_data_eq!(renderer.render(report), expected_ascii);
+
+    let expected_unicode = file!["highlight_duplicated_diff_lines.unicode.term.svg": TermSvg];
+    let renderer = renderer.decor_style(DecorStyle::Unicode);
+    assert_data_eq!(renderer.render(report), expected_unicode);
+}

tests/color/highlight_duplicated_diff_lines.rs

@@ -9,10 +9,12 @@ mod fold_ann_multiline;
 mod fold_bad_origin_line;
 mod fold_leading;
 mod fold_trailing;
+mod highlight_duplicated_diff_lines;
 mod highlight_source;
 mod issue_9;
 mod multiline_removal_suggestion;
 mod multiple_annotations;
+mod multiple_highlight_duplicated;
 mod multiple_multiline_removal;
 mod primary_title_second_group;
 mod simple;

tests/color/highlight_duplicated_diff_lines.unicode.term.svg

@@ -0,0 +1,93 @@
+use annotate_snippets::{renderer::DecorStyle, AnnotationKind, Level, Patch, Renderer, Snippet};
+
+use snapbox::{assert_data_eq, file};
+
+#[test]
+fn case() {
+    let source = r#"struct Thingie;
+
+impl Thingie {
+    pub(crate) fn new(
+        _a: String,
+        _b: String,
+        _c: String,
+        _d: String,
+        _e: String,
+        _f: String,
+    ) -> Self {
+        unimplemented!()
+    }
+}
+
+fn main() {
+    let foo = Thingie::new(
+        String::from(""),
+        String::from(""),
+        String::from(""),
+        String::from(""),
+        String::from(""),
+        String::from(""),
+        String::from(""),
+    );
+}"#;
+
+    let path = "$DIR/wrong-highlight-span-extra-arguments-147070.rs";
+
+    let report = &[
+        Level::ERROR
+            .primary_title("this function takes 6 arguments but 7 arguments were supplied")
+            .id("E0061")
+            .element(
+                Snippet::source(source)
+                    .path(path)
+                    .annotation(
+                        AnnotationKind::Context
+                            .span(429..445)
+                            .label("unexpected argument #7 of type `String`"),
+                    )
+                    .annotation(AnnotationKind::Primary.span(251..263)),
+            ),
+        Level::NOTE
+            .secondary_title("associated function defined here")
+            .element(
+                Snippet::source(source)
+                    .path(path)
+                    .annotation(AnnotationKind::Primary.span(50..53)),
+            ),
+        Level::HELP
+            .secondary_title("remove the extra argument")
+            .element(
+                Snippet::source(source)
+                    .path(path)
+                    .patch(Patch::new(419..445, "")),
+            )
+            .element(
+                Snippet::source(source)
+                    .path(path)
+                    .patch(Patch::new(266..292, "")),
+            )
+            .element(
+                Snippet::source(source)
+                    .path(path)
+                    .patch(Patch::new(289..315, "")),
+            )
+            .element(
+                Snippet::source(source)
+                    .path(path)
+                    .patch(Patch::new(403..420, "")),
+            )
+            .element(
+                Snippet::source(source)
+                    .path(path)
+                    .patch(Patch::new(419..445, "")),
+            ),
+    ];
+
+    let expected_ascii = file!["multiple_highlight_duplicated.ascii.term.svg": TermSvg];
+    let renderer = Renderer::styled();
+    assert_data_eq!(renderer.render(report), expected_ascii);
+
+    let expected_unicode = file!["multiple_highlight_duplicated.unicode.term.svg": TermSvg];
+    let renderer = renderer.decor_style(DecorStyle::Unicode);
+    assert_data_eq!(renderer.render(report), expected_unicode);
+}