Module name (#775)

crates/api/tests/name.rs

@@ -0,0 +1,54 @@
+use wasmtime::*;
+use wat::parse_str;
+
+#[test]
+fn test_module_no_name() -> Result<(), String> {
+    let store = Store::default();
+    let binary = parse_str(
+        r#"
+                (module
+                (func (export "run") (nop))
+                )
+            "#,
+    )
+    .map_err(|e| format!("failed to parse WebAssembly text source: {}", e))?;
+
+    let module = HostRef::new(
+        Module::new(&store, &binary).map_err(|e| format!("failed to compile module: {}", e))?,
+    );
+    assert_eq!(module.borrow().name().cloned(), None);
+
+    Ok(())
+}
+
+#[test]
+fn test_module_name() -> Result<(), String> {
+    let store = Store::default();
+    let binary = parse_str(
+        r#"
+                (module $from_name_section
+                (func (export "run") (nop))
+                )
+            "#,
+    )
+    .map_err(|e| format!("failed to parse WebAssembly text source: {}", e))?;
+
+    let module = HostRef::new(
+        Module::new(&store, &binary).map_err(|e| format!("failed to compile module: {}", e))?,
+    );
+    assert_eq!(
+        module.borrow().name().cloned(),
+        Some("from_name_section".to_string())
+    );
+
+    let module = HostRef::new(
+        Module::new_with_name(&store, &binary, "override".to_string())
+            .map_err(|e| format!("failed to compile module: {}", e))?,
+    );
+    assert_eq!(
+        module.borrow().name().cloned(),
+        Some("override".to_string())
+    );
+
+    Ok(())
+}