add tests for roc test --ignore-build-errors

crates/cli/tests/cli_run.rs

@@ -646,6 +646,20 @@ mod cli_run {
         );
     }
 
+    #[test]
+    fn expect_ignore_build_errors() {
+        test_roc_expect(
+            "crates/cli/tests/expects",
+            "IgnoreBuildErrors.roc",
+            &["--ignore-build-errors"],
+            indoc!(
+                r#"
+                1 failed and 1 passed in <ignored for test> ms.
+                "#
+            ),
+        )
+    }
+
     #[test]
     #[cfg_attr(windows, ignore)]
     fn transitive_expects() {

crates/cli/tests/expects/IgnoreBuildErrors.roc

@@ -0,0 +1,12 @@
+interface IgnoreBuildErrors
+    exposes []
+    imports []
+
+x = 1
+
+expect x == 1
+
+foo = \x -> x + 1
+
+expect foo 2 == 3
+