Make the separation between target and interferer scenario depend on microphone spacing in Nonlinea…

webrtc/modules/audio_processing/beamformer/array_util_unittest.cc

+/*
+ *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "webrtc/modules/audio_processing/beamformer/array_util.h"
+
+#include <vector>
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace webrtc {
+
+TEST(ArrayUtilTest, GetMinimumSpacing) {
+  std::vector<Point> array_geometry;
+  array_geometry.push_back(Point(0.f, 0.f, 0.f));
+  array_geometry.push_back(Point(0.1f, 0.f, 0.f));
+  EXPECT_FLOAT_EQ(0.1f, GetMinimumSpacing(array_geometry));
+  array_geometry.push_back(Point(0.f, 0.05f, 0.f));
+  EXPECT_FLOAT_EQ(0.05f, GetMinimumSpacing(array_geometry));
+  array_geometry.push_back(Point(0.f, 0.f, 0.02f));
+  EXPECT_FLOAT_EQ(0.02f, GetMinimumSpacing(array_geometry));
+  array_geometry.push_back(Point(-0.003f, -0.004f, 0.02f));
+  EXPECT_FLOAT_EQ(0.005f, GetMinimumSpacing(array_geometry));
+}
+
+}  // namespace webrtc