Move Rust exercises in a subdirectory

1 files changed, 138 insertions, 0 deletions

diff --git a/rust/dot-dsl/tests/dot-dsl.rs b/rust/dot-dsl/tests/dot-dsl.rs
new file mode 100644
index 0000000..ae469b7
--- /dev/null
+++ b/rust/dot-dsl/tests/dot-dsl.rs
@@ -0,0 +1,138 @@
+use dot_dsl::graph::graph_items::edge::Edge;
+use dot_dsl::graph::graph_items::node::Node;
+use dot_dsl::graph::Graph;
+use maplit::hashmap;
+
+#[test]
+fn test_empty_graph() {
+    let graph = Graph::new();
+
+    assert!(graph.nodes.is_empty());
+
+    assert!(graph.edges.is_empty());
+
+    assert!(graph.attrs.is_empty());
+}
+
+#[test]
+fn test_graph_with_one_node() {
+    let nodes = vec![Node::new("a")];
+
+    let graph = Graph::new().with_nodes(&nodes);
+
+    assert!(graph.edges.is_empty());
+
+    assert!(graph.attrs.is_empty());
+
+    assert_eq!(graph.nodes, vec![Node::new("a")]);
+}
+
+#[test]
+fn test_graph_with_one_node_with_keywords() {
+    let nodes = vec![Node::new("a").with_attrs(&[("color", "green")])];
+
+    let graph = Graph::new().with_nodes(&nodes);
+
+    assert!(graph.edges.is_empty());
+
+    assert!(graph.attrs.is_empty());
+
+    assert_eq!(
+        graph.nodes,
+        vec![Node::new("a").with_attrs(&[("color", "green")])]
+    );
+}
+
+#[test]
+fn test_graph_with_one_edge() {
+    let edges = vec![Edge::new("a", "b")];
+
+    let graph = Graph::new().with_edges(&edges);
+
+    assert!(graph.nodes.is_empty());
+
+    assert!(graph.attrs.is_empty());
+
+    assert_eq!(graph.edges, vec![Edge::new("a", "b")]);
+}
+
+#[test]
+fn test_graph_with_one_attribute() {
+    let graph = Graph::new().with_attrs(&[("foo", "1")]);
+
+    let expected_attrs = hashmap! {
+        "foo".to_string() => "1".to_string(),
+    };
+
+    assert!(graph.nodes.is_empty());
+
+    assert!(graph.edges.is_empty());
+
+    assert_eq!(graph.attrs, expected_attrs);
+}
+
+#[test]
+fn test_graph_with_attributes() {
+    let nodes = vec![
+        Node::new("a").with_attrs(&[("color", "green")]),
+        Node::new("c"),
+        Node::new("b").with_attrs(&[("label", "Beta!")]),
+    ];
+
+    let edges = vec![
+        Edge::new("b", "c"),
+        Edge::new("a", "b").with_attrs(&[("color", "blue")]),
+    ];
+
+    let attrs = vec![("foo", "1"), ("title", "Testing Attrs"), ("bar", "true")];
+
+    let expected_attrs = hashmap! {
+        "foo".to_string() => "1".to_string(),
+        "title".to_string() => "Testing Attrs".to_string(),
+        "bar".to_string() => "true".to_string(),
+    };
+
+    let graph = Graph::new()
+        .with_nodes(&nodes)
+        .with_edges(&edges)
+        .with_attrs(&attrs);
+
+    assert_eq!(
+        graph.nodes,
+        vec![
+            Node::new("a").with_attrs(&[("color", "green")]),
+            Node::new("c"),
+            Node::new("b").with_attrs(&[("label", "Beta!")]),
+        ]
+    );
+
+    assert_eq!(
+        graph.edges,
+        vec![
+            Edge::new("b", "c"),
+            Edge::new("a", "b").with_attrs(&[("color", "blue")]),
+        ]
+    );
+
+    assert_eq!(graph.attrs, expected_attrs);
+}
+
+#[test]
+fn test_graph_stores_attributes() {
+    let attributes = [("foo", "bar"), ("bat", "baz"), ("bim", "bef")];
+    let graph = Graph::new().with_nodes(
+        &["a", "b", "c"]
+            .iter()
+            .zip(attributes.iter())
+            .map(|(name, &attr)| Node::new(&name).with_attrs(&[attr]))
+            .collect::<Vec<_>>(),
+    );
+
+    assert_eq!(
+        graph
+            .get_node("c")
+            .expect("node must be stored")
+            .get_attr("bim"),
+        Some("bef")
+    );
+}