EffectBundleTest: Move helper class to a separate file

This helps in extending the tests for other effects

Bug: 178513382
Test: atest EffectBundleTest
Test: atest --host EffectBundleTest

Change-Id: Id830e4b8cb496a2ac7a83c6efc3c6ed0144859b5
diff --git a/media/libeffects/lvm/tests/EffectTestHelper.cpp b/media/libeffects/lvm/tests/EffectTestHelper.cpp
new file mode 100644
index 0000000..625c15a
--- /dev/null
+++ b/media/libeffects/lvm/tests/EffectTestHelper.cpp
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2021 The Android Open Source Project
+ *
+ * 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.
+ */
+
+#include "EffectTestHelper.h"
+extern audio_effect_library_t AUDIO_EFFECT_LIBRARY_INFO_SYM;
+
+namespace android {
+
+void EffectTestHelper::createEffect() {
+    int status = AUDIO_EFFECT_LIBRARY_INFO_SYM.create_effect(mUuid, 1, 1, &mEffectHandle);
+    ASSERT_EQ(status, 0) << "create_effect returned an error " << status;
+}
+
+void EffectTestHelper::releaseEffect() {
+    int status = AUDIO_EFFECT_LIBRARY_INFO_SYM.release_effect(mEffectHandle);
+    ASSERT_EQ(status, 0) << "release_effect returned an error " << status;
+}
+
+void EffectTestHelper::setConfig() {
+    effect_config_t config{};
+    config.inputCfg.samplingRate = config.outputCfg.samplingRate = mSampleRate;
+    config.inputCfg.channels = mInChMask;
+    config.outputCfg.channels = mOutChMask;
+    config.inputCfg.format = config.outputCfg.format = AUDIO_FORMAT_PCM_FLOAT;
+
+    int reply = 0;
+    uint32_t replySize = sizeof(reply);
+    int status = (*mEffectHandle)
+                         ->command(mEffectHandle, EFFECT_CMD_SET_CONFIG, sizeof(effect_config_t),
+                                   &config, &replySize, &reply);
+    ASSERT_EQ(status, 0) << "set_config returned an error " << status;
+    ASSERT_EQ(reply, 0) << "set_config reply non zero " << reply;
+
+    status = (*mEffectHandle)
+                     ->command(mEffectHandle, EFFECT_CMD_ENABLE, 0, nullptr, &replySize, &reply);
+    ASSERT_EQ(status, 0) << "cmd_enable returned an error " << status;
+    ASSERT_EQ(reply, 0) << "cmd_enable reply non zero " << reply;
+}
+
+void EffectTestHelper::setParam(uint32_t type, uint32_t value) {
+    int reply = 0;
+    uint32_t replySize = sizeof(reply);
+    uint32_t paramData[2] = {type, value};
+    auto effectParam = new effect_param_t[sizeof(effect_param_t) + sizeof(paramData)];
+    memcpy(&effectParam->data[0], &paramData[0], sizeof(paramData));
+    effectParam->psize = sizeof(paramData[0]);
+    effectParam->vsize = sizeof(paramData[1]);
+    int status = (*mEffectHandle)
+                         ->command(mEffectHandle, EFFECT_CMD_SET_PARAM,
+                                   sizeof(effect_param_t) + sizeof(paramData), effectParam,
+                                   &replySize, &reply);
+    delete[] effectParam;
+    ASSERT_EQ(status, 0) << "set_param returned an error " << status;
+    ASSERT_EQ(reply, 0) << "set_param reply non zero " << reply;
+}
+
+void EffectTestHelper::process(float* input, float* output) {
+    audio_buffer_t inBuffer = {.frameCount = mFrameCount, .f32 = input};
+    audio_buffer_t outBuffer = {.frameCount = mFrameCount, .f32 = output};
+    for (size_t i = 0; i < mLoopCount; i++) {
+        int status = (*mEffectHandle)->process(mEffectHandle, &inBuffer, &outBuffer);
+        ASSERT_EQ(status, 0) << "process returned an error " << status;
+
+        inBuffer.f32 += mFrameCount * mInChannelCount;
+        outBuffer.f32 += mFrameCount * mOutChannelCount;
+    }
+}
+}  // namespace android