core/tests: Write a script to generate empty albums

gen_tracks.sh will read a specially configured file and create a
directory containing empty tracks to use for testing.

Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>

tests/.gitignore

@@ -1,3 +1,4 @@
 *-core
 *-lib
 sanity
+*.ogg

tests/Music/Hyrule_Symphony.album

@@ -0,0 +1,16 @@
+Koji Kondo
+1998 Hyrule Symphony
+Game
+243 Title Theme
+130 Kokiri Forest
+227 Hyrule Field
+130 Hyrule Castle
+206 Lon Lon Ranch
+186 Kakariko Village
+178 Death Mountain
+221 Zora's Domain
+273 Gerudo Valley
+66 Ganondorf
+185 Princess Zelda
+232 Ocarina Medley
+288 The Legend of Zelda Medley

tests/Music/Sconscript

@@ -0,0 +1,7 @@
+#!/usr/bin/python
+import subprocess
+
+albums  = [ "Hyrule_Symphony.album" ]
+
+for album in albums:
+    subprocess.call(["sh", "gen_tracks.sh", album])

tests/Music/gen_tracks.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+TRACK=1
+FFMPEG="ffmpeg -hide_banner -nostdin -f s16le -i /dev/zero -codec libvorbis -loglevel warning"
+
+while read -r line; do
+	if [ -z "$ARTIST" ]; then
+		ARTIST="$line"
+	elif [ -z "$ALBUM" ]; then
+		YEAR=$(echo "$line" | cut -f 1 -d ' ')
+		ALBUM=$(echo "$line" | cut -f 1 -d ' ' --complement)
+		mkdir -p "$ALBUM"
+	elif [ -z "$GENRE" ]; then
+		GENRE="$line"
+	else
+		LENGTH=$(echo "$line" | cut -f 1 -d ' ')
+		TITLE=$(echo "$line" | cut -f -1 -d ' ' --complement)
+		NUMBER=$(printf "%02d" $TRACK)
+		FILE="$ALBUM/$NUMBER - $TITLE.ogg"
+
+		if [ ! -f "$FILE" ]; then
+			echo "$FILE"
+			$FFMPEG -t "$LENGTH" "$FILE"
+			vorbiscomment -w "$FILE" -t "TITLE=$TITLE"   \
+						 -t "ARTIST=$ARTIST" \
+						 -t "ALBUM=$ALBUM"   \
+						 -t "GENRE=$GENRE"   \
+						 -t "DATE=$YEAR"     \
+						 -t "TRACKNUMBER=$NUMBER"
+		fi
+
+		let TRACK=$TRACK+1
+	fi
+done < $1

tests/Sconscript

@@ -26,6 +26,9 @@ def UnitTest(test, sources):
 	return run
 Export("UnitTest")
 
+#Generate empty audio files
+SConscript("Music/Sconscript")
+
 res = SConscript("core/Sconscript")
 if check_sanity == True:
 	res = [ UnitTest("sanity", [ "sanity.c" ]) ] + res