skia2/gm/tests/run.sh

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#!/bin/bash
# Self-tests for gm, based on tools/tests/run.sh
#
# These tests are run by the Skia_PerCommit_House_Keeping bot at every commit,
# so make sure that they still pass when you make changes to gm!
#
# TODO: Even though these tests are passing on the Skia_PerCommit_House_Keeping
# bot (which runs on Linux), they fail when I run them on my Mac.
# Ideally, these tests should pass on all development platforms...
# otherwise, how can developers be expected to test them before committing a
# change?
# cd into .../trunk so all the paths will work
cd $(dirname $0)/../..
# TODO(epoger): make it look in Release and/or Debug
GM_BINARY=out/Debug/gm
# Compare contents of all files within directories $1 and $2,
# EXCEPT for any dotfiles.
# If there are any differences, a description is written to stdout and
# we exit with a nonzero return value.
# Otherwise, we write nothing to stdout and return.
function compare_directories {
if [ $# != 2 ]; then
echo "compare_directories requires exactly 2 parameters, got $#"
exit 1
fi
diff -r --exclude=.* $1 $2
if [ $? != 0 ]; then
echo "failed in: compare_directories $1 $2"
exit 1
fi
}
# Run gm...
# - with the arguments in $1
# - writing resulting images into $2/output-actual/images
# - writing stdout into $2/output-actual/stdout
# - writing return value into $2/output-actual/return_value
# Then compare all of those against $2/output-expected .
function gm_test {
if [ $# != 2 ]; then
echo "gm_test requires exactly 2 parameters, got $#"
exit 1
fi
GM_ARGS="$1"
ACTUAL_OUTPUT_DIR="$2/output-actual"
EXPECTED_OUTPUT_DIR="$2/output-expected"
rm -rf $ACTUAL_OUTPUT_DIR
mkdir -p $ACTUAL_OUTPUT_DIR
COMMAND="$GM_BINARY $GM_ARGS -w $ACTUAL_OUTPUT_DIR/images"
echo "$COMMAND" >$ACTUAL_OUTPUT_DIR/command_line
$COMMAND &>$ACTUAL_OUTPUT_DIR/stdout
echo $? >$ACTUAL_OUTPUT_DIR/return_value
compare_directories $EXPECTED_OUTPUT_DIR $ACTUAL_OUTPUT_DIR
}
GM_TESTDIR=gm/tests
GM_INPUTS=$GM_TESTDIR/inputs
GM_OUTPUTS=$GM_TESTDIR/outputs
# Compare generated image against an input image file with identical bytes.
gm_test "--hierarchy --match dashing2 --config 8888 -r $GM_INPUTS/identical-bytes" "$GM_OUTPUTS/compared-against-identical-bytes"
# Compare generated image against an input image file with identical pixels but different PNG encoding.
gm_test "--hierarchy --match dashing2 --config 8888 -r $GM_INPUTS/identical-pixels" "$GM_OUTPUTS/compared-against-identical-pixels"
# Compare generated image against an input image file with different pixels.
gm_test "--hierarchy --match dashing2 --config 8888 -r $GM_INPUTS/different-pixels" "$GM_OUTPUTS/compared-against-different-pixels"
echo "All tests passed."