Update ProcessorTester to optionally create audio component and control panel

Author: anjaldoshi

Tests/Processors/RecordNodeTests.cpp

@@ -23,7 +23,8 @@ class RecordNodeTests :  public testing::Test {
             numChannels,
             sampleRate,
             bitVolts
-        }));
+        }), 
+        ProcessorTesterMode::FullApp);
 
         parentRecordingDir = std::filesystem::temp_directory_path() / "record_node_tests";
         if (std::filesystem::exists(parentRecordingDir)) {
@@ -285,7 +286,8 @@ class HardwareSynced_RecordNodeTests : public RecordNodeTests {
             1,
             0,
             true
-        }));
+        }),
+        ProcessorTesterMode::FullApp);
 
         parentRecordingDir = std::filesystem::temp_directory_path() / "record_node_hardware_sync_tests";
         if (std::filesystem::exists(parentRecordingDir)) {
@@ -873,7 +875,8 @@ class SingleChannel_RecordNodeTests : public RecordNodeTests {
             numChannels,
             sampleRate,
             bitVolts
-        }));
+        }),
+        ProcessorTesterMode::FullApp);
 
         parentRecordingDir = std::filesystem::temp_directory_path() / "record_node_single_ch_tests";
         if (std::filesystem::exists(parentRecordingDir)) {
@@ -961,7 +964,8 @@ class MultiStream_RecordNodeTests : public testing::Test {
             30000,  // sample rate
             1.0f,   // bitVolts
             3       // streams
-        }));
+        }),
+        ProcessorTesterMode::FullApp);
 
         parentRecordingDir = std::filesystem::temp_directory_path() / "record_node_multi_stream_tests";
         if (std::filesystem::exists(parentRecordingDir)) {
@@ -1055,7 +1059,8 @@ class BufferResize_RecordNodeTests : public RecordNodeTests {
             numChannels,
             sampleRate,
             bitVolts
-        }));
+        }),
+        ProcessorTesterMode::FullApp);
 
         parentRecordingDir = std::filesystem::temp_directory_path() / "record_node_buffer_resize_tests";
         if (std::filesystem::exists(parentRecordingDir)) {
@@ -1120,7 +1125,8 @@ class ManyChannels_RecordNodeTests : public RecordNodeTests {
             numChannels,
             sampleRate,
             bitVolts
-        }));
+        }),
+        ProcessorTesterMode::FullApp);
 
         parentRecordingDir = std::filesystem::temp_directory_path() / "record_node_many_ch_tests";
         if (std::filesystem::exists(parentRecordingDir)) {

Tests/TestHelpers/include/TestFixtures.h

@@ -10,13 +10,20 @@
 #include <UI/ControlPanel.h>
 #include <juce_audio_processors/juce_audio_processors.h>
 #include <Processors/GenericProcessor/GenericProcessor.h>
+#include <stdexcept>
 
 enum class TestSourceNodeType
 {
     Fake,
     Base
 };
 
+enum class ProcessorTesterMode
+{
+    GraphOnly,
+    FullApp
+};
+
 class TestSourceNodeBuilder
 {
 public:
@@ -64,7 +71,8 @@ class TestSourceNodeBuilder
 class ProcessorTester
 {
 public:
-    ProcessorTester (TestSourceNodeBuilder sourceNodeBuilder)
+    ProcessorTester (TestSourceNodeBuilder sourceNodeBuilder,
+                     ProcessorTesterMode mode = ProcessorTesterMode::GraphOnly)
     {
         // Singletons...
         MessageManager::deleteInstance();
@@ -79,10 +87,14 @@ class ProcessorTester
         customLookAndFeel = std::make_unique<CustomLookAndFeel>();
         LookAndFeel::setDefaultLookAndFeel (customLookAndFeel.get());
 
-        // All of these sets the global state in AccessClass in their constructors
-        audioComponent = std::make_unique<AudioComponent>();
         processorGraph = std::make_unique<ProcessorGraph> (true);
-        controlPanel = std::make_unique<ControlPanel> (processorGraph.get(), audioComponent.get(), true);
+
+        if (mode == ProcessorTesterMode::FullApp)
+        {
+            // These set global state in AccessClass and require a real audio-capable test environment.
+            audioComponent = std::make_unique<AudioComponent>();
+            controlPanel = std::make_unique<ControlPanel> (processorGraph.get(), audioComponent.get(), true);
+        }
 
         SourceNode* snTemp = sourceNodeBuilder.buildSourceNode();
         sourceNodeId = nextProcessorId++;
@@ -98,12 +110,14 @@ class ProcessorTester
         sn->initialize (false);
         sn->setDestNode (nullptr);
 
-        controlPanel->updateRecordEngineList();
+        if (controlPanel != nullptr)
+            controlPanel->updateRecordEngineList();
 
         // Refresh everything
         processorGraph->updateSettings (sn);
 
-        controlPanel->colourChanged();
+        if (controlPanel != nullptr)
+            controlPanel->colourChanged();
     }
 
     virtual ~ProcessorTester()
@@ -159,6 +173,9 @@ class ProcessorTester
 
     void startAcquisition (bool startRecording, bool forceRecording = false)
     {
+        if (controlPanel == nullptr)
+            throw std::logic_error ("ProcessorTester::startAcquisition requires FullApp mode");
+
         if (startRecording)
         {
             // Do it this way to ensure the GUI elements (which apparently control logic) are set properly
@@ -196,6 +213,9 @@ class ProcessorTester
 
     void stopAcquisition()
     {
+        if (controlPanel == nullptr)
+            throw std::logic_error ("ProcessorTester::stopAcquisition requires FullApp mode");
+
         controlPanel->stopAcquisition();
     }
 
@@ -304,7 +324,7 @@ class DataThreadTester : public ProcessorTester
 {
 public:
     DataThreadTester (TestSourceNodeBuilder sourceNodeBuilder) : 
-        ProcessorTester (sourceNodeBuilder)
+        ProcessorTester (sourceNodeBuilder, ProcessorTesterMode::GraphOnly)
     {}
 
     template <