1 files changed, 111 insertions, 0 deletions
diff --git a/tests/com/jsyn/util/TestVoiceAllocator.java b/tests/com/jsyn/util/TestVoiceAllocator.java
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+++ b/tests/com/jsyn/util/TestVoiceAllocator.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.util;
+
+import junit.framework.TestCase;
+
+import com.jsyn.instruments.SubtractiveSynthVoice;
+import com.jsyn.unitgen.UnitVoice;
+
+public class TestVoiceAllocator extends TestCase {
+    VoiceAllocator allocator;
+    int max = 4;
+    private UnitVoice[] voices;
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+
+        voices = new UnitVoice[max];
+        for (int i = 0; i < max; i++) {
+            voices[i] = new SubtractiveSynthVoice();
+        }
+
+        allocator = new VoiceAllocator(voices);
+    }
+
+    @Override
+    protected void tearDown() throws Exception {
+        super.tearDown();
+    }
+
+    public void testAllocation() {
+        assertEquals("get max", max, allocator.getVoiceCount());
+
+        int tag1 = 61;
+        int tag2 = 62;
+        int tag3 = 63;
+        int tag4 = 64;
+        int tag5 = 65;
+        int tag6 = 66;
+        UnitVoice voice1 = allocator.allocate(tag1);
+        assertTrue("voice should be non-null", (voice1 != null));
+
+        UnitVoice voice2 = allocator.allocate(tag2);
+        assertTrue("voice should be non-null", (voice2 != null));
+        assertTrue("new voice ", (voice2 != voice1));
+
+        UnitVoice voice = allocator.allocate(tag1);
+        assertTrue("should be voice1 again ", (voice == voice1));
+
+        voice = allocator.allocate(tag2);
+        assertTrue("should be voice2 again ", (voice == voice2));
+
+        UnitVoice voice3 = allocator.allocate(tag3);
+        @SuppressWarnings("unused")
+        UnitVoice voice4 = allocator.allocate(tag4);
+
+        UnitVoice voice5 = allocator.allocate(tag5);
+        assertTrue("ran out so get voice1 as oldest", (voice5 == voice1));
+
+        voice = allocator.allocate(tag2);
+        assertTrue("should be voice2 again ", (voice == voice2));
+
+        // Now voice 3 should be the oldest cuz voice 2 was touched.
+        UnitVoice voice6 = allocator.allocate(tag6);
+        assertTrue("ran out so get voice3 as oldest", (voice6 == voice3));
+    }
+
+    public void testOff() {
+        int tag1 = 61;
+        int tag2 = 62;
+        int tag3 = 63;
+        int tag4 = 64;
+        int tag5 = 65;
+        int tag6 = 66;
+        UnitVoice voice1 = allocator.allocate(tag1);
+        UnitVoice voice2 = allocator.allocate(tag2);
+        UnitVoice voice3 = allocator.allocate(tag3);
+        UnitVoice voice4 = allocator.allocate(tag4);
+
+        assertTrue("voice 3 should start on", allocator.isOn(tag3));
+        allocator.off(tag3);
+        assertEquals("voice 3 should now be off", false, allocator.isOn(tag3));
+
+        allocator.off(tag2);
+
+        UnitVoice voice5 = allocator.allocate(tag5);
+        assertTrue("should get voice3 cuz off first", (voice5 == voice3));
+        UnitVoice voice6 = allocator.allocate(tag6);
+        assertTrue("should get voice2 cuz off second", (voice6 == voice2));
+        voice3 = allocator.allocate(tag3);
+        assertTrue("should get voice1 cuz on first", (voice3 == voice1));
+
+        voice1 = allocator.allocate(tag1);
+        assertTrue("should get voice4 cuz next up", (voice1 == voice4));
+    }
+}