From b492e05b17e51a9805d585934a5b9185f797a768 Mon Sep 17 00:00:00 2001
From: Paul Ferrand <paul@ferrand.cc>
Date: Sun, 15 Dec 2019 02:05:53 +0100
Subject: [PATCH] Added midi state tests

---
 tests/CMakeLists.txt |  1 +
 tests/MidiStateT.cpp | 96 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 97 insertions(+)
 create mode 100644 tests/MidiStateT.cpp

diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index a60e169e..4f698c4a 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -14,6 +14,7 @@ set(SFIZZ_TEST_SOURCES
     BufferT.cpp
     SIMDHelpersT.cpp
     FilesT.cpp
+    MidiStateT.cpp
     OnePoleFilterT.cpp
     RegionActivationT.cpp
     RegionValueComputationsT.cpp
diff --git a/tests/MidiStateT.cpp b/tests/MidiStateT.cpp
new file mode 100644
index 00000000..da49b71d
--- /dev/null
+++ b/tests/MidiStateT.cpp
@@ -0,0 +1,96 @@
+// Copyright (c) 2019, Paul Ferrand
+// All rights reserved.
+
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+
+// 1. Redistributions of source code must retain the above copyright notice, this
+//    list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright notice,
+//    this list of conditions and the following disclaimer in the documentation
+//    and/or other materials provided with the distribution.
+
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+/**
+ * @brief This file holds some of the specific MidiState tests. Some tests on the
+ * effects of the midi state are also available in e.g. RegionValueComputationT.cpp
+ * and SynthT.cpp.
+ */
+
+#include "MidiState.h"
+#include "catch2/catch.hpp"
+#include "absl/strings/string_view.h"
+using namespace Catch::literals;
+
+TEST_CASE("[MidiState] Initial values")
+{
+    sfz::MidiState state;
+    for (auto& cc: state.getCCArray(1))
+        REQUIRE( cc == 0 );
+    for (auto& cc: state.getCCArray(6))
+        REQUIRE( cc == 0 );
+    for (int channel = 1; channel <= 16; ++channel)
+        REQUIRE( state.getPitchBend(channel) == 0 );
+}
+
+TEST_CASE("[MidiState] Set and get CCs")
+{
+    sfz::MidiState state;
+    const auto& cc1 = state.getCCArray(1);
+    const auto& cc6 = state.getCCArray(6);
+    const auto& cc12 = state.getCCArray(12);
+    state.ccEvent(1, 24, 23);
+    state.ccEvent(6, 123, 124);
+    REQUIRE(state.getCCValue(1, 24) == 23);
+    REQUIRE(cc1[24] == 23);
+    REQUIRE(state.getCCValue(6, 123) == 124);
+    REQUIRE(cc6[123] == 124);
+    REQUIRE(+state.getCCValue(12, 24) == 0);
+    REQUIRE(+state.getCCValue(12, 123) == 0);
+    REQUIRE(cc12[24] == 0);
+    REQUIRE(cc12[123] == 0);
+}
+
+TEST_CASE("[MidiState] Set and get pitch bends")
+{
+    sfz::MidiState state;
+    state.pitchBendEvent(1, 894);
+    REQUIRE(state.getPitchBend(1) == 894);
+    REQUIRE(state.getPitchBend(6) == 0);
+    state.pitchBendEvent(1, 0);
+    REQUIRE(state.getPitchBend(1) == 0);
+    REQUIRE(state.getPitchBend(6) == 0);
+}
+
+TEST_CASE("[MidiState] Reset")
+{
+    sfz::MidiState state;
+    state.pitchBendEvent(1, 894);
+    state.noteOnEvent(6, 64, 24);
+    state.ccEvent(16, 123, 124);
+    state.reset();
+    REQUIRE(state.getPitchBend(1) == 0);
+    REQUIRE(state.getNoteVelocity(6, 64) == 0);
+    REQUIRE(state.getCCValue(16, 123) == 0);
+}
+
+TEST_CASE("[MidiState] Set and get note velocities")
+{
+    sfz::MidiState state;
+    state.noteOnEvent(1, 64, 24);
+    REQUIRE(+state.getNoteVelocity(1, 64) == 24);
+    REQUIRE(+state.getNoteVelocity(2, 64) == 0);
+    state.noteOnEvent(1, 64, 123);
+    REQUIRE(+state.getNoteVelocity(1, 64) == 123);
+    REQUIRE(+state.getNoteVelocity(16, 64) == 0);
+}
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