Added earth surface texture

crates/resolved-cli/tests/cli.rs

@@ -123,6 +123,60 @@ fn missing_kernels_say_where_they_looked() {
     );
 }
 
+#[test]
+fn lighting_l1_says_what_it_is_missing() {
+    // boxwing.toml has no epoch and no earth_month: L1 cannot pick a month.
+    let no_month = resolved(&[
+        "render",
+        "--scene",
+        "examples/scenes/boxwing.toml",
+        "--lighting",
+        "L1",
+        "--preview",
+        "x.png",
+    ]);
+    assert!(!no_month.status.success());
+    let stderr = String::from_utf8_lossy(&no_month.stderr);
+    assert!(stderr.contains("earth_month"), "{stderr}");
+
+    // With a month but no data: the error names the file and the fetch script.
+    let scene = out_dir().join("month.toml");
+    let models = repo().join("examples/models").canonicalize().unwrap();
+    let text = std::fs::read_to_string(repo().join("examples/scenes/boxwing.toml"))
+        .unwrap()
+        .replace("../models", models.to_str().unwrap())
+        + "\n[appearance]\nearth_month = 7\n";
+    std::fs::write(&scene, text).unwrap();
+    let no_data = resolved(&[
+        "render",
+        "--scene",
+        scene.to_str().unwrap(),
+        "--lighting",
+        "L1",
+        "--data",
+        "no/such/dir",
+        "--preview",
+        "x.png",
+    ]);
+    assert!(!no_data.status.success());
+    let stderr = String::from_utf8_lossy(&no_data.stderr);
+    assert!(
+        stderr.contains("bmng-2004-07.jpg") && stderr.contains("fetch-earth.sh"),
+        "{stderr}"
+    );
+
+    let unknown = resolved(&[
+        "render",
+        "--scene",
+        "examples/scenes/boxwing.toml",
+        "--lighting",
+        "L7",
+        "--preview",
+        "x.png",
+    ]);
+    assert!(!unknown.status.success());
+}
+
 #[test]
 fn adapters_lists_something() {
     let result = resolved(&["adapters"]);