Initial Dever 0.0.1

test/rust/native/task/async_stream.rs

@@ -0,0 +1,53 @@
+use super::{Directory, fixture};
+use dever::compiler::{build, project::Project};
+
+#[test]
+fn async_stream_consumers_keep_values_and_close_all_aliases() {
+    let directory = Directory::new();
+    let project = Project::load(&fixture().with_file_name("async-stream.dever")).unwrap();
+    let program = project.check().unwrap();
+    for (entry, expected) in [
+        ("verify", "true\n"),
+        ("cleanup", "true\n"),
+        ("creation", "AsyncStream\n"),
+    ] {
+        let binary =
+            build::build(&program, &project.sources, entry, &directory.0.join(entry)).unwrap();
+        let result = std::process::Command::new(binary).output().unwrap();
+        assert!(
+            result.status.success(),
+            "{}",
+            String::from_utf8_lossy(&result.stderr)
+        );
+        assert_eq!(result.stdout, expected.as_bytes());
+    }
+}
+
+#[test]
+fn invalid_tick_period_keeps_its_official_library_location() {
+    let directory = Directory::new();
+    let project = Project::load(&fixture().with_file_name("async-stream.dever")).unwrap();
+    let program = project.check().unwrap();
+    let binary = build::build(
+        &program,
+        &project.sources,
+        "invalid",
+        &directory.0.join("invalid"),
+    )
+    .unwrap();
+    let result = std::process::Command::new(binary).output().unwrap();
+    assert!(!result.status.success());
+    let error = String::from_utf8(result.stderr).unwrap();
+    assert!(error.contains("tick period must be positive"), "{error}");
+    let source = project
+        .sources
+        .iter()
+        .find(|source| source.path.ends_with("lib/dever/task.dever"))
+        .unwrap();
+    let (line, column) =
+        source.position(source.text.find("dever.system.taskTicks(millis)").unwrap());
+    assert!(
+        error.contains(&format!("{}:{line}:{column}:", source.path.display())),
+        "{error}"
+    );
+}