test: running cuda env and using those tasks. (#764)

Not broken but still a good thing to test

src/task/task_graph.rs

@@ -366,22 +366,23 @@ pub enum TaskGraphError {
 #[cfg(test)]
 mod test {
     use crate::task::task_graph::TaskGraph;
-    use crate::Project;
+    use crate::{EnvironmentName, Project};
     use rattler_conda_types::Platform;
     use std::path::Path;
 
     fn commands_in_order(
         project_str: &str,
         run_args: &[&str],
         platform: Option<Platform>,
+        environment_name: Option<EnvironmentName>,
     ) -> Vec<String> {
         let project = Project::from_str(Path::new(""), project_str).unwrap();
-
+        let environment = environment_name.map(|name| project.environment(&name).unwrap());
         let graph = TaskGraph::from_cmd_args(
             &project,
             run_args.into_iter().map(|arg| arg.to_string()).collect(),
             platform,
-            None,
+            environment,
         )
         .unwrap();
 
@@ -409,6 +410,7 @@ mod test {
         top = {cmd="echo top", depends_on=["task1","task2"]}
     "#,
                 &["top", "--test"],
+                None,
                 None
             ),
             vec!["echo root", "echo task1", "echo task2", "echo top --test"]
@@ -431,6 +433,7 @@ mod test {
         top = {cmd="echo top", depends_on=["task1","task2"]}
     "#,
                 &["top"],
+                None,
                 None
             ),
             vec!["echo root", "echo task1", "echo task2", "echo top"]
@@ -456,6 +459,7 @@ mod test {
     "#,
                 &["top"],
                 Some(Platform::Linux64),
+                None
             ),
             vec!["echo linux", "echo task1", "echo task2", "echo top",]
         );
@@ -473,6 +477,7 @@ mod test {
     "#,
                 &["echo bla"],
                 None,
+                None
             ),
             vec![r#""echo bla""#]
         );
@@ -496,6 +501,7 @@ mod test {
     "#,
                 &["build"],
                 None,
+                None
             ),
             vec![r#"echo build"#]
         );
@@ -522,8 +528,40 @@ mod test {
     "#,
                 &["start"],
                 None,
+                None
             ),
             vec![r#"hello world"#]
         );
     }
+
+    #[test]
+    fn test_multi_env_cuda() {
+        assert_eq!(
+            commands_in_order(
+                r#"
+        [project]
+        name = "pixi"
+        channels = ["conda-forge"]
+        platforms = ["linux-64"]
+
+        [tasks]
+        train = "python train.py"
+        test = "python test.py"
+        start = {depends_on = ["train", "test"]}
+
+        [feature.cuda.tasks]
+        train = "python train.py --cuda"
+        test = "python test.py --cuda"
+
+        [environments]
+        cuda = ["cuda"]
+
+    "#,
+                &["start"],
+                None,
+                Some(EnvironmentName::Named("cuda".to_string()))
+            ),
+            vec![r#"python train.py --cuda"#, r#"python test.py --cuda"#]
+        );
+    }
 }