1 files changed, 111 insertions, 0 deletions
diff --git a/src/test/java/com/jsyn/unitgen/TestConnections.java b/src/test/java/com/jsyn/unitgen/TestConnections.java
new file mode 100644
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+++ b/src/test/java/com/jsyn/unitgen/TestConnections.java
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+/*
+ * Copyright 2009 Phil Burk, Mobileer Inc
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.jsyn.unitgen;
+
+import com.jsyn.JSyn;
+import com.jsyn.Synthesizer;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class TestConnections {
+    private Synthesizer synth;
+
+    private Add add1;
+    private Add add2;
+    private Add add3;
+
+    @BeforeEach
+    private void beforeEach() {
+        synth = JSyn.createSynthesizer();
+
+        synth.add(add1 = new Add());
+        synth.add(add2 = new Add());
+        synth.add(add3 = new Add());
+
+        add1.start();
+        add2.start();
+        add3.start();
+
+        add1.inputA.set(0.1);
+        add1.inputB.set(0.2);
+
+        add2.inputA.set(0.4);
+        add2.inputB.set(0.8);
+
+        add3.inputA.set(1.6);
+        add3.inputB.set(3.2);
+    }
+
+    @Test
+    public void testSet() throws InterruptedException {
+        synth.sleepFor(0.01);
+        assertEquals(0.3, add1.output.getValue(), 0.0001, "set inputs of adder");
+    }
+
+    @Test
+    public void testConnect() throws InterruptedException {
+        synth.sleepFor(0.01);
+        assertEquals(0.3, add1.output.getValue(), 0.0001, "set inputs of adder");
+        assertEquals(1.2, add2.output.getValue(), 0.0001, "set inputs of adder");
+
+        // Test different ways of connecting.
+        add1.output.connect(add2.inputB);
+        checkConnection();
+
+        add1.output.connect(0, add2.inputB, 0);
+        checkConnection();
+
+        add1.output.connect(add2.inputB.getConnectablePart(0));
+        checkConnection();
+
+        add1.output.getConnectablePart(0).connect(add2.inputB);
+        checkConnection();
+
+        add1.output.getConnectablePart(0).connect(add2.inputB.getConnectablePart(0));
+        checkConnection();
+
+        add2.inputB.connect(add1.output);
+        checkConnection();
+
+        add2.inputB.connect(0, add1.output, 0);
+        checkConnection();
+
+        add2.inputB.connect(add1.output.getConnectablePart(0));
+        checkConnection();
+
+        add2.inputB.getConnectablePart(0).connect(add1.output);
+        checkConnection();
+
+        add2.inputB.getConnectablePart(0).connect(add1.output.getConnectablePart(0));
+        checkConnection();
+    }
+
+    private void checkConnection() throws InterruptedException {
+        synth.sleepFor(0.01);
+        assertEquals(0.3, add1.output.getValue(), 0.0001, "connection should not change output");
+        assertEquals(0.7, add2.output.getValue(), 0.0001, "replace set value with output");
+
+        // Revert to set value after disconnection.
+        add1.output.disconnectAll();
+        synth.sleepFor(0.01);
+        assertEquals(0.3, add1.output.getValue(), 0.0001, "still the same");
+        assertEquals(1.2, add2.output.getValue(), 0.0001, "should revert to original set() value");
+    }
+
+}