chore(test_util): add new string assertion macros (#14928)

1 files changed, 39 insertions, 0 deletions

diff --git a/test_util/src/assertions.rs b/test_util/src/assertions.rs
new file mode 100644
index 000000000..ecee14b1f
--- /dev/null
+++ b/test_util/src/assertions.rs
@@ -0,0 +1,39 @@
+#[macro_export]
+macro_rules! assert_ends_with {
+  ($left:expr, $right:expr $(,)?) => {
+    match (&$left, &$right) {
+      (actual, expected) => {
+        let actual = if expected.len() > actual.len() {
+          actual
+        } else {
+          &actual[actual.len() - expected.len()..]
+        };
+        pretty_assertions::assert_eq!(
+          actual,
+          *expected,
+          "should end with expected."
+        );
+      }
+    }
+  };
+}
+
+#[macro_export]
+macro_rules! assert_contains {
+  ($string:expr, $($test:expr),+ $(,)?) => {
+    let string = &$string; // This might be a function call or something
+    if !($(string.contains($test))||+) {
+      panic!("{:?} does not contain any of {:?}", string, [$($test),+]);
+    }
+  }
+}
+
+#[macro_export]
+macro_rules! assert_not_contains {
+  ($string:expr, $($test:expr),+ $(,)?) => {
+    let string = &$string; // This might be a function call or something
+    if !($(!string.contains($test))||+) {
+      panic!("{:?} contained {:?}", string, [$($test),+]);
+    }
+  }
+}