tests for map completed

tests/node_map.rs

@@ -0,0 +1,60 @@
+mod common;
+use common::*;
+
+#[test]
+fn check_node_map() {
+    let (node_conf, mut node_exec) = new_node_engine();
+    let mut matrix = Matrix::new(node_conf, 3, 3);
+
+    let map  = NodeId::Map(0);
+    let out  = NodeId::Out(0);
+    matrix.place(0, 0, Cell::empty(map)
+                       .out(None, None, map.out("sig")));
+    matrix.place(0, 1, Cell::empty(out)
+                       .input(out.inp("ch1"), None, None));
+    pset_n(&mut matrix, map, "inp",  0.5);
+    pset_n(&mut matrix, map, "atv",  0.5); // => 0.25
+    pset_n(&mut matrix, map, "offs", 0.1); // => 0.35
+
+    pset_n(&mut matrix, map, "imin", 0.0);
+    pset_n(&mut matrix, map, "imax", 0.7); // middle is at 0.35
+
+    pset_n(&mut matrix, map, "min", -1.0);
+    pset_n(&mut matrix, map, "max", -0.5); // we expect -0.75
+    matrix.sync().unwrap();
+
+    let res = run_for_ms(&mut node_exec, 10.0);
+    assert_decimated_feq!(res.0, 10, vec![-0.75; 50]);
+}
+
+#[test]
+fn check_node_map_clip() {
+    let (node_conf, mut node_exec) = new_node_engine();
+    let mut matrix = Matrix::new(node_conf, 3, 3);
+
+    let map  = NodeId::Map(0);
+    let out  = NodeId::Out(0);
+    matrix.place(0, 0, Cell::empty(map)
+                       .out(None, None, map.out("sig")));
+    matrix.place(0, 1, Cell::empty(out)
+                       .input(out.inp("ch1"), None, None));
+    pset_n(&mut matrix, map, "inp",  0.5);
+    pset_n(&mut matrix, map, "atv",  0.5);  // => 0.25
+    pset_n(&mut matrix, map, "offs", 0.80); // => 1.05
+
+    pset_n(&mut matrix, map, "imin", 0.0);
+    pset_n(&mut matrix, map, "imax", 0.7); // 1.05 is at 0.7 + 0.35
+
+    pset_n(&mut matrix, map, "min", 0.0);
+    pset_n(&mut matrix, map, "max", 0.1); // with 50% over imax => 0.15
+    matrix.sync().unwrap();
+
+    let res = run_for_ms(&mut node_exec, 10.0);
+    assert_decimated_feq!(res.0, 10, vec![0.15; 50]);
+
+    pset_s(&mut matrix, map, "clip", 1); // should clip at 0.1
+    run_for_ms(&mut node_exec, 30.0);
+
+    let res = run_for_ms(&mut node_exec, 10.0);
+    assert_decimated_feq!(res.0, 10, vec![0.1; 50]);
+}