2 files changed, 44 insertions, 0 deletions

diff --git a/crates/test_utils/Cargo.toml b/crates/test_utils/Cargo.toml
new file mode 100644
index 000000000..3d336a9b4
--- /dev/null
+++ b/crates/test_utils/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "test_utils"
+version = "0.1.0"
+authors = ["Aleksey Kladov <[email protected]>"]
+
+[dependencies]
+difference = "2.0.0"
+itertools = "0.7.8"
diff --git a/crates/test_utils/src/lib.rs b/crates/test_utils/src/lib.rs
new file mode 100644
index 000000000..26b9bfb38
--- /dev/null
+++ b/crates/test_utils/src/lib.rs
@@ -0,0 +1,36 @@
+extern crate difference;
+extern crate itertools;
+
+use std::fmt;
+use itertools::Itertools;
+
+pub use self::difference::Changeset as __Changeset;
+
+#[macro_export]
+macro_rules! assert_eq_text {
+    ($expected:expr, $actual:expr) => {{
+        let expected = $expected;
+        let actual = $actual;
+        if expected != actual {
+            let changeset = $crate::__Changeset::new(actual, expected, "\n");
+            println!("Expected:\n{}\n\nActual:\n{}\nDiff:{}\n", expected, actual, changeset);
+            panic!("text differs");
+        }
+    }};
+    ($expected:expr, $actual:expr, $($tt:tt)*) => {{
+        let expected = $expected;
+        let actual = $actual;
+        if expected != actual {
+            let changeset = $crate::__Changeset::new(actual, expected, "\n");
+            println!("Expected:\n{}\n\nActual:\n{}\n\nDiff:\n{}\n", expected, actual, changeset);
+            println!($($tt)*);
+            panic!("text differs");
+        }
+    }};
+}
+
+pub fn assert_eq_dbg(expected: &str, actual: &impl fmt::Debug) {
+    let actual = format!("{:?}", actual);
+    let expected = expected.lines().map(|l| l.trim()).join(" ");
+    assert_eq!(expected, actual);
+}