Rust learning: lessons, notes, and exercise crates

tasks/tests/common/mod.rs

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+#![allow(dead_code)]
+
+use std::{
+    path::PathBuf,
+    sync::atomic::{AtomicU32, Ordering},
+};
+
+use tasks::store::Store;
+use tasks::task::Priority;
+
+pub fn temp_path() -> PathBuf {
+    static N: AtomicU32 = AtomicU32::new(0);
+    let n = N.fetch_add(1, Ordering::Relaxed);
+    std::env::temp_dir().join(format!("tasks-{}-{}.txt", std::process::id(), n))
+}
+
+pub fn args(list: &[&str]) -> Vec<String> {
+    list.iter().map(|s| s.to_string()).collect()
+}
+
+/// One task per priority, ids 1..=3, task 1 already completed.
+pub fn three_tasks() -> Store {
+    let mut store = Store::new();
+    store.add("low task", Priority::Low);
+    store.add("medium task", Priority::Medium);
+    store.add("high task", Priority::High);
+    store.complete(1).expect("task 1 was just added");
+    store
+}