From 9a85c6013f0dc855c261e3cb9c8dd3845a80b548 Mon Sep 17 00:00:00 2001
From: Armin Ronacher <armin.ronacher@active-4.com>
Date: Thu, 25 Feb 2021 23:42:33 +0100
Subject: [PATCH] Remove assert example and link to similar-asserts

---
 Cargo.toml         |   4 --
 README.md          |   5 ++
 examples/assert.rs | 126 ---------------------------------------------
 3 files changed, 5 insertions(+), 130 deletions(-)
 delete mode 100644 examples/assert.rs

diff --git a/Cargo.toml b/Cargo.toml
index aadc2bc..af56926 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -33,10 +33,6 @@ console = "0.14.0"
 unicode-segmentation = { version = "1.7.1", optional = true }
 bstr = { version = "0.2.14", optional = true, default-features = false }
 
-[[example]]
-name = "assert"
-required-features = ["text", "inline"]
-
 [[example]]
 name = "patience"
 required-features = ["text", "inline"]
diff --git a/README.md b/README.md
index 8b8c744..9e03370 100644
--- a/README.md
+++ b/README.md
@@ -46,6 +46,11 @@ fn main() {
 * Text and Byte diffing
 * Unified diff generation
 
+## Related Projects
+
+* [insta](https://insta.rs) snapshot testing library
+* [similar-asserts](https://github.com/mitsuhiko/similar-asserts) assertion library
+
 ## License and Links
 
 - [Documentation](https://docs.rs/similar/)
diff --git a/examples/assert.rs b/examples/assert.rs
deleted file mode 100644
index d7b78d6..0000000
--- a/examples/assert.rs
+++ /dev/null
@@ -1,126 +0,0 @@
-use std::fmt;
-
-use console::{style, Style};
-use similar::{Algorithm, ChangeTag, TextDiff};
-
-pub struct Diff {
-    left: String,
-    right: String,
-}
-
-fn to_debug<D: fmt::Debug>(d: &D) -> String {
-    use fmt::Write;
-    let mut buf = String::new();
-    buf.write_fmt(format_args!("{:#?}", d))
-        .expect("a Debug implementation returned an error unexpectedly");
-    buf
-}
-
-impl Diff {
-    pub fn from_debug<Left: fmt::Debug, Right: fmt::Debug>(left: &Left, right: &Right) -> Diff {
-        let left = to_debug(left).into();
-        let right = to_debug(right).into();
-        Diff { left, right }
-    }
-}
-
-impl fmt::Display for Diff {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        if self.left == self.right {
-            writeln!(
-                f,
-                "{}: {}",
-                style("Invisible differences").bold(),
-                "the two values are the same in string form."
-            )?;
-            return Ok(());
-        }
-
-        let diff = TextDiff::configure()
-            .algorithm(Algorithm::Patience)
-            .diff_lines(&self.left, &self.right);
-        writeln!(
-            f,
-            "  {} ({}|{}):",
-            style("Differences").bold(),
-            style("<left").red(),
-            style(">right").green(),
-        )?;
-        for (idx, group) in diff.grouped_ops(4).into_iter().enumerate() {
-            if idx > 0 {
-                writeln!(f, "  ~~~")?;
-            }
-            for op in group {
-                for change in diff.iter_inline_changes(&op) {
-                    let (marker, style) = match change.tag() {
-                        ChangeTag::Delete => ('<', Style::new().red()),
-                        ChangeTag::Insert => ('>', Style::new().green()),
-                        ChangeTag::Equal => (' ', Style::new().dim()),
-                    };
-                    write!(f, "   {}", style.apply_to(marker).dim().bold())?;
-                    #[cfg(feature = "inline")]
-                    {
-                        for &(emphasized, value) in change.values() {
-                            if emphasized {
-                                write!(f, "{}", style.clone().underlined().bold().apply_to(value))?;
-                            } else {
-                                write!(f, "{}", style.apply_to(value))?;
-                            }
-                        }
-                    }
-                    #[cfg(not(feature = "inline"))]
-                    {
-                        write!(f, "{}", style.apply_to(change.value()))?;
-                    }
-                    if change.missing_newline() {
-                        writeln!(f)?;
-                    }
-                }
-            }
-        }
-        Ok(())
-    }
-}
-
-#[macro_export]
-macro_rules! assert_eq {
-    ($left:expr, $right:expr $(,)?) => ({
-        match (&($left), &($right)) {
-            (left_val, right_val) => {
-                if !(*left_val == *right_val) {
-                    panic!("assertion failed: `(left == right)`'\
-                           \n  left: `{:?}`\
-                           \n right: `{:?}`\
-                           \n\n{}\n",
-                           &*left_val,
-                           &*right_val,
-                           $crate::Diff::from_debug(&*left_val, &*right_val));
-                }
-            }
-        }
-    });
-    ($left:expr, $right:expr, $($arg:tt)*) => ({
-        match (&($left), &($right)) {
-            (left_val, right_val) => {
-                if !(*left_val == *right_val) {
-                    panic!("assertion failed: `(left == right)`: {}'\
-                           \n  left: `{:?}`\
-                           \n right: `{:?}`\
-                           \n\n{}\n",
-                           format_args!($($arg)*),
-                           &*left_val,
-                           &*right_val,
-                           $crate::Diff::from_debug(&*left_val, &*right_val));
-                }
-            }
-        }
-    });
-}
-
-fn main() {
-    let vec1: Vec<_> = (1..100).collect();
-    let mut vec2 = vec1.clone();
-    vec2[52] = 2;
-    vec2[12] = 33;
-    assert_eq!(vec1, vec2);
-}