Initial Dever 0.0.1

test/rust/native/id.rs

@@ -0,0 +1,61 @@
+use super::{Directory, fixture};
+use dever::compiler::{build, project::Project};
+
+#[test]
+fn ids_preserve_text_identity_aliases_and_map_semantics() {
+    let directory = Directory::new();
+    let project = Project::load(&fixture().with_file_name("id.dever")).unwrap();
+    let program = project.check().unwrap();
+    for (entry, failure) in [
+        ("verify", None),
+        (
+            "duplicateEntry",
+            Some((
+                "test/rust/fixtures/id.dever",
+                "duplicate Map literal key",
+                "{ dever.id.fromText(left)",
+            )),
+        ),
+        (
+            "failureEntry",
+            Some((
+                "lib/dever/bytes.dever",
+                "DecodeResult.Failed",
+                "fail(DecodeResult.Failed(message))",
+            )),
+        ),
+    ] {
+        let binary =
+            build::build(&program, &project.sources, entry, &directory.0.join(entry)).unwrap();
+        let output = std::process::Command::new(binary).output().unwrap();
+        if let Some((source, message, needle)) = failure {
+            assert!(!output.status.success());
+            assert!(output.stdout.is_empty());
+            let stderr = String::from_utf8(output.stderr).unwrap();
+            let source = project
+                .sources
+                .iter()
+                .find(|item| item.path.ends_with(source))
+                .unwrap();
+            let offset = source.text.find(needle).unwrap();
+            let offset = if needle.starts_with("fail(") {
+                offset + 5
+            } else {
+                offset
+            };
+            let (line, column) = source.position(offset);
+            assert!(stderr.contains(message), "{stderr}");
+            assert!(
+                stderr.contains(&format!("{}:{line}:{column}:", source.path.display())),
+                "{stderr}"
+            );
+        } else {
+            assert!(
+                output.status.success(),
+                "{}",
+                String::from_utf8_lossy(&output.stderr)
+            );
+            assert_eq!(output.stdout, b"true\n");
+        }
+    }
+}