Add tests for simple_decoder.

Change-Id: I092175fbd433bd03673d6bc942146ecba491873a

test/simple_decoder.sh

+#!/bin/sh
+##
+##  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+##
+##  Use of this source code is governed by a BSD-style license
+##  that can be found in the LICENSE file in the root of the source
+##  tree. An additional intellectual property rights grant can be found
+##  in the file PATENTS.  All contributing project authors may
+##  be found in the AUTHORS file in the root of the source tree.
+##
+##  This file tests the libvpx simple_decoder example code. To add new tests to
+##  this file, do the following:
+##    1. Write a shell function (this is your test).
+##    2. Add the function to simple_decoder_tests (on a new line).
+##
+. $(dirname $0)/tools_common.sh
+
+# Environment check: Make sure input is available:
+#   $VP8_IVF_FILE and $VP9_IVF_FILE are required.
+simple_decoder_verify_environment() {
+  if [ ! -e "${VP8_IVF_FILE}" ] || [ ! -e "${VP9_IVF_FILE}" ]; then
+    echo "Libvpx test data must exist in LIBVPX_TEST_DATA_PATH."
+    return 1
+  fi
+}
+
+# Runs simple_decoder using $1 as input file. $2 is the codec name, and is used
+# solely to name the output file.
+simple_decoder() {
+  local decoder="${LIBVPX_BIN_PATH}/simple_decoder${VPX_TEST_EXE_SUFFIX}"
+  local input_file="$1"
+  local codec="$2"
+  local output_file="${VPX_TEST_OUTPUT_DIR}/simple_decoder_${codec}.raw"
+
+  [ -x "${decoder}" ] || return 1
+
+  "${decoder}" "${input_file}" "${output_file}" > /dev/null 2>&1
+
+  [ -e "${output_file}" ] || return 1
+}
+
+simple_decoder_vp8() {
+  if [ "$(vp8_decode_available)" = "yes" ]; then
+    simple_decoder "${VP8_IVF_FILE}" vp8 || return 1
+  fi
+}
+
+simple_decoder_vp9() {
+  if [ "$(vp9_decode_available)" = "yes" ]; then
+    simple_decoder "${VP9_IVF_FILE}" vp9 || return 1
+  fi
+}
+
+simple_decoder_tests="simple_decoder_vp8
+                      simple_decoder_vp9"
+
+run_tests simple_decoder_verify_environment "${simple_decoder_tests}"