Create test workload

crates/xtask/src/test/workload.rs

@@ -0,0 +1,12 @@
+use std::collections::BTreeMap;
+use serde::Deserialize;
+
+use crate::common::assets::Asset;
+
+/// A test workload.
+/// Not to be confused with [a bench workload](crate::bench::workload::Workload).
+#[derive(Deserialize)]
+pub struct Workload {
+    pub name: String,
+    pub assets: BTreeMap<String, Asset>,
+}