support/testing/tests/package/test_fluidsynth.py: new runtime test

Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

DEVELOPERS

@@ -1747,6 +1747,8 @@ F:	support/testing/tests/package/test_compressor_base.py
 F:	support/testing/tests/package/test_ddrescue.py
 F:	support/testing/tests/package/test_ddrescue/
 F:	support/testing/tests/package/test_dos2unix.py
+F:	support/testing/tests/package/test_fluidsynth.py
+F:	support/testing/tests/package/test_fluidsynth/
 F:	support/testing/tests/package/test_gawk.py
 F:	support/testing/tests/package/test_glslsandbox_player.py
 F:	support/testing/tests/package/test_glslsandbox_player/

support/testing/tests/package/test_fluidsynth.py

@@ -0,0 +1,61 @@
+import os
+
+import infra.basetest
+
+
+class TestFluidsynth(infra.basetest.BRTest):
+    # infra.basetest.BASIC_TOOLCHAIN_CONFIG cannot be used as it is
+    # armv5 and based on qemu versatilepb which is limited to 256MB of
+    # RAM.  The test needs 1GB of RAM (larger initrd and soundfont is
+    # loaded in memory).
+    config = \
+        """
+        BR2_aarch64=y
+        BR2_TOOLCHAIN_EXTERNAL=y
+        BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
+        BR2_LINUX_KERNEL=y
+        BR2_LINUX_KERNEL_CUSTOM_VERSION=y
+        BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.15.86"
+        BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
+        BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/aarch64-virt/linux.config"
+        BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
+        BR2_PACKAGE_AUBIO=y
+        BR2_PACKAGE_FLUIDSYNTH=y
+        BR2_PACKAGE_FLUIDSYNTH_LIBSNDFILE=y
+        BR2_PACKAGE_FLUID_SOUNDFONT=y
+        BR2_PACKAGE_PYTHON3=y
+        BR2_PACKAGE_PYTHON_MIDIUTIL=y
+        BR2_ROOTFS_OVERLAY="{}"
+        BR2_TARGET_ROOTFS_CPIO=y
+        # BR2_TARGET_ROOTFS_TAR is not set
+        """.format(
+           # overlay to add helper test scripts
+           infra.filepath("tests/package/test_fluidsynth/rootfs-overlay"))
+
+    def test_run(self):
+        img = os.path.join(self.builddir, "images", "rootfs.cpio")
+        kern = os.path.join(self.builddir, "images", "Image")
+        self.emulator.boot(arch="aarch64",
+                           kernel=kern,
+                           kernel_cmdline=["console=ttyAMA0"],
+                           options=["-M", "virt", "-cpu", "cortex-a57", "-m", "1G", "-initrd", img])
+        self.emulator.login()
+
+        # Test the binary executes
+        self.assertRunOk("fluidsynth --version")
+
+        # Create a simple MIDI file programmatically
+        self.assertRunOk("/root/gen_midi_file.py /tmp/output.mid")
+
+        # Convert the MIDI file to a WAV file
+        cmd = "fluidsynth"
+        cmd += " -F /tmp/output.wav"
+        cmd += " /usr/share/soundfonts/FluidR3_GM.sf2"
+        cmd += " /tmp/output.mid"
+        self.assertRunOk(cmd)
+
+        # Extract notes in the WAV file with Aubio
+        self.assertRunOk("aubionotes /tmp/output.wav > /tmp/notes.txt")
+
+        # Check the extracted notes are the expected ones
+        self.assertRunOk("/root/check_notes.py < /tmp/notes.txt")

support/testing/tests/package/test_fluidsynth/rootfs-overlay/root/check_notes.py

@@ -0,0 +1,24 @@
+#! /usr/bin/env python3
+#
+# This script reads the output of the "aubionotes" command and
+# validates it contains three expected notes (A2, E3, A3) in the
+# correct order. Silences or other notes are allowed in between those
+# notes, to allow some flexibility.
+
+import sys
+
+found = 0
+notes = [57, 64, 69]
+
+for line in sys.stdin:
+    fields = line.split()
+    if len(fields) >= 1:
+        value = round(float(fields[0]))
+        if value == notes[found]:
+            found += 1
+        if found == len(notes):
+            print("Found all notes")
+            sys.exit(0)
+
+print("Error: all notes not found")
+sys.exit(1)

support/testing/tests/package/test_fluidsynth/rootfs-overlay/root/gen_midi_file.py

@@ -0,0 +1,23 @@
+#! /usr/bin/env python3
+#
+# This script generates a MIDI file with only 3 notes: A2, E3, A3
+# usage: gen_midi_file.py [output-filename]
+
+import sys
+
+from midiutil import MIDIFile
+
+output_filename = "output.mid"
+if len(sys.argv) >= 2:
+    output_filename = sys.argv[1]
+
+notes = [57, 64, 69]  # A2, E3, A3
+
+midi = MIDIFile()
+midi.addTempo(track=0, time=0, tempo=60)
+
+for i, p in enumerate(notes):
+    midi.addNote(track=0, channel=0, pitch=p, time=i, duration=1, volume=100)
+
+with open(output_filename, "wb") as output_file:
+    midi.writeFile(output_file)