Add scripts to test the CLI features

I'm going to move my internals CLI tests to this repo in the near future.
This is a first version to try the new --ignore-empty --save-as feature.

cli/help.sh

@@ -0,0 +1,7 @@
+#! /bin/bash
+# Copyright (C) 2018 Igara Studio S.A.
+
+if ! $ASEPRITE --help | grep "\\-\\-help" > /dev/null ; then
+    echo "FAILED: --help doesn't include usage information"
+    exit 1
+fi

cli/list-layers.sh

@@ -0,0 +1,10 @@
+#! /bin/bash
+# Copyright (C) 2018 Igara Studio S.A.
+
+expect "bg
+fg" "$ASEPRITE -b --list-layers sprites/1empty3.aseprite"
+
+expect "a
+b
+c
+d" "$ASEPRITE -b --list-layers sprites/abcd.aseprite"

cli/list-tags.sh

@@ -0,0 +1,5 @@
+#! /bin/bash
+# Copyright (C) 2018 Igara Studio S.A.
+
+expect "a
+b" "$ASEPRITE -b --list-tags sprites/1empty3.aseprite"

cli/save-as.sh

@@ -0,0 +1,23 @@
+#! /bin/bash
+# Copyright (C) 2018 Igara Studio S.A.
+
+function list_files() {
+    oldwd=$(pwd)
+    cd $1 && ls -1 *.*
+    cd $oldwd
+}
+
+# --save-as
+
+d=$t/save-as
+$ASEPRITE -b sprites/1empty3.aseprite --save-as "$d/image00.png"
+expect "image00.png
+image01.png
+image02.png" "list_files $d"
+
+# --ignore-empty --save-as
+
+d=$t/save-as-ignore-empty
+$ASEPRITE -b sprites/1empty3.aseprite --ignore-empty --save-as $d/image00.png
+expect "image00.png
+image02.png" "list_files $d"

cli/version.sh

@@ -0,0 +1,7 @@
+#! /bin/bash
+# Copyright (C) 2018 Igara Studio S.A.
+
+if ! $ASEPRITE --version | grep "Aseprite 1\\." > /dev/null ; then
+    echo "FAILED: --version doesn't include 'Aseprite 1.' string"
+    exit 1
+fi

run-tests.sh

@@ -1,4 +1,5 @@
 #! /bin/sh
+# Copyright (C) 2018 Igara Studio S.A.
 # Copyright (C) 2018 David Capello
 
 if [[ "$ASEPRITE" == "" ]]; then
@@ -12,26 +13,40 @@ function fail() {
     exit 1
 }
 
+function expect() {
+    if [[ $1 != $($2) ]] ; then
+	echo "FAILED: $2"
+	echo "EXPECTED: $1"
+	echo "RESULT: $($2)"
+	exit 1
+    fi
+}
+
 echo ----------------------------------------------------------------------
 echo $ASEPRITE --version
 $ASEPRITE --version
 
+echo ----------------------------------------------------------------------
+echo Temp dir
+t=$(mktemp -d)
+echo $t
+
 echo ----------------------------------------------------------------------
 echo "Testing console..."
-$ASEPRITE -b --script scripts/console_assert.lua >tmp 2>tmp_err
-! grep -q "this should be in the output" tmp && fail "print() text not found in output"
-! grep -q "assertion failed" tmp && fail "assert() text not found in output"
-grep -q "this should not be in the output" tmp && fail "text that shouldn't be in the output is"
+$ASEPRITE -b --script scripts/console_assert.lua >$t/tmp 2>$t/tmp_err
+! grep -q "this should be in the output" $t/tmp && fail "print() text not found in output"
+! grep -q "assertion failed" $t/tmp && fail "assert() text not found in output"
+grep -q "this should not be in the output" $t/tmp && fail "text that shouldn't be in the output is"
 
 if [[ "$(uname)" =~ "MINGW32" ]] || [[ "$(uname)" =~ "MSYS_NT-10.0" ]] ; then
     echo Ignore console tests on Windows
 else
-    $ASEPRITE -b --script scripts/console_print.lua >tmp 2>tmp_err
-    cat >tmp_expected <<EOF
+    $ASEPRITE -b --script scripts/console_print.lua >$t/tmp 2>$t/tmp_err
+    cat >$t/tmp_expected <<EOF
 hello world
 1	2	3
 EOF
-    ! diff -u tmp tmp_expected && fail
+    ! diff -u $t/tmp $t/tmp_expected && fail
 fi
 
 echo ----------------------------------------------------------------------
@@ -40,16 +55,24 @@ echo "Testing scripts..."
 result=0
 for script in scripts/*.lua ; do
     [[ $script =~ console ]] && continue
-
     echo "Running $script"
-    if ! $ASEPRITE -b --script $script >tmp 2>tmp_err ; then
+    if ! $ASEPRITE -b --script $script >$t/tmp 2>$t/tmp_err ; then
         echo FAILED
-        echo STDOUT && cat tmp
-        echo STDERR && cat tmp_err
+        echo STDOUT && cat $t/tmp
+        echo STDERR && cat $t/tmp_err
         result=1
     fi
 done
 
+echo ----------------------------------------------------------------------
+echo "Testing CLI..."
+
+result=0
+for script in cli/*.sh ; do
+    echo "Running $script"
+    source $script
+done
+
 echo ----------------------------------------------------------------------
 echo Done
 echo ----------------------------------------------------------------------

sprites/README.md

@@ -0,0 +1,4 @@
+# Files
+
+* `abcd.aseprite`: Indexed, 32x32, four layers ("a", "b", "c", "d")
+* `1empty3.aseprite`: RGB, 32x32, two layers ("fg", "bg"), 2nd frame completelly empty, two tags ("a", "b")