tools/build_defs/docker/build_test.sh - bazel - Git at Google

 #!/bin/bash

 # Copyright 2015 Google Inc. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
 #    http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.

 # Unit tests for docker_build

 DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
 source ${DIR}/testenv.sh || { echo "testenv.sh not found!" >&2; exit 1; }

 readonly PLATFORM="$(uname -s | tr 'A-Z' 'a-z')"
 if [ "${PLATFORM}" = "darwin" ]; then
   readonly MAGIC_TIMESTAMP="$(date -r 0 "+%b %e  %Y")"
 else
   readonly MAGIC_TIMESTAMP="$(date --date=@0 "+%F %R")"
 fi

 function EXPECT_CONTAINS() {
   local complete="${1}"
   local substring="${2}"
   local message="${3:-Expected '${substring}' not found in '${complete}'}"

   echo "${complete}" | grep -Fsq -- "${substring}" \
     || fail "$message"
 }

 function check_property() {
   local property="${1}"
   local tarball="${2}"
   local layer="${3}"
   local expected="${4}"
   local test_data="${TEST_DATA_DIR}/${tarball}.tar"

   local metadata="$(tar xOf "${test_data}" "./${layer}/json")"

   # This would be much more accurate if we had 'jq' everywhere.
   EXPECT_CONTAINS "${metadata}" "\"${property}\": ${expected}"
 }

 function check_no_property() {
   local property="${1}"
   local tarball="${2}"
   local layer="${3}"
   local test_data="${TEST_DATA_DIR}/${tarball}.tar"

   tar xOf "${test_data}" "./${layer}/json" >$TEST_log
   expect_not_log "\"${property}\":"

   # notop variant
   test_data="${TEST_DATA_DIR}/notop_${tarball}.tar"
   tar xOf "${test_data}" "./${layer}/json" >$TEST_log
   expect_not_log "\"${property}\":"
 }

 function check_size() {
   check_property Size "${@}"
 }

 function check_id() {
   check_property id "${@}"
 }

 function check_parent() {
   check_property parent "${@}"
 }

 function check_entrypoint() {
   input="$1"
   shift
   check_property Entrypoint "${input}" "${@}"
   check_property Entrypoint "notop_${input}" "${@}"
 }

 function check_cmd() {
   input="$1"
   shift
   check_property Cmd "${input}" "${@}"
   check_property Cmd "notop_${input}" "${@}"
 }

 function check_ports() {
   input="$1"
   shift
   check_property ExposedPorts "${input}" "${@}"
   check_property ExposedPorts "${input}" "${@}"
 }

 function check_volumes() {
   input="$1"
   shift
   check_property Volumes "${input}" "${@}"
   check_property Volumes "notop_${input}" "${@}"
 }

 function check_env() {
   input="$1"
   shift
   check_property Env "${input}" "${@}"
   check_property Env "notop_${input}" "${@}"
 }

 function check_layers_aux() {
   local input=${1}
   shift 1
   local expected_layers=(${*})

   local expected_layers_sorted=(
     $(for i in ${expected_layers[*]}; do echo $i; done | sort)
   )
   local test_data="${TEST_DATA_DIR}/${input}.tar"

   # Verbose output for testing.
   tar tvf "${test_data}"

   local actual_layers=(
     $(tar tvf ${test_data} | tr -s ' ' | cut -d' ' -f 4- | sort \
       | cut -d'/' -f 2 | grep -E '^[0-9a-f]+$' | sort | uniq))

   # Verbose output for testing.
   echo Expected: ${expected_layers_sorted[@]}
   echo Actual: ${actual_layers[@]}

   check_eq "${#expected_layers[@]}" "${#actual_layers[@]}"

   local index=0
   local parent=
   while [ "${index}" -lt "${#expected_layers[@]}" ]
   do
     # Check that the nth sorted layer matches
     check_eq "${expected_layers_sorted[$index]}" "${actual_layers[$index]}"

     # Grab the ordered layer and check it.
     local layer="${expected_layers[$index]}"

     # Verbose output for testing.
     echo Checking layer: "${layer}"

     local listing="$(tar xOf "${test_data}" "./${layer}/layer.tar" | tar tv)"

     # Check that all files in the layer, if any, have the magic timestamp
     check_eq "$(echo "${listing}" | grep -Fv "${MAGIC_TIMESTAMP}")" ""

     check_id "${input}" "${layer}" "\"${layer}\""

     # Check that the layer contains its predecessor as its parent in the JSON.
     if [[ -n "${parent}" ]]; then
       check_parent "${input}" "${layer}" "\"${parent}\""
     fi

     # Check that the layer's size metadata matches the layer's tarball's size.
     local layer_size=$(tar xOf "${test_data}" "./${layer}/layer.tar" | wc -c | xargs)
     check_size "${input}" "${layer}" "${layer_size}"

     index=$((index + 1))
     parent=$layer
   done
 }

 function check_layers() {
   local input=$1
   shift
   check_layers_aux "$input" "$@"
   check_layers_aux "notop_$input" "$@"
 }

 function test_gen_image() {
   grep -Fsq "./gen.out" "$TEST_DATA_DIR/gen_image.tar" \
     || fail "'./gen.out' not found in '$TEST_DATA_DIR/gen_image.tar'"
 }

 function test_files_base() {
   check_layers "files_base" \
     "240dd12c02aee796394ce18eee3108475f7d544294b17fc90ec54e983601fe1b"
 }

 function test_files_with_files_base() {
   check_layers "files_with_files_base" \
     "240dd12c02aee796394ce18eee3108475f7d544294b17fc90ec54e983601fe1b" \
     "a9fd8cab2b9831ca2a13f371c04667a7698ef3baa90f3e820c4568d774cc69ab"
 }

 function test_tar_base() {
   check_layers "tar_base" \
     "83e8285de55c00f74f45628f75aec4366b361913be486e2e96af1a7b05211094"

   # Check that this layer doesn't have any entrypoint data by looking
   # for *any* entrypoint.
   check_no_property "Entrypoint" "tar_base" \
     "83e8285de55c00f74f45628f75aec4366b361913be486e2e96af1a7b05211094"
 }

 function test_tar_with_tar_base() {
   check_layers "tar_with_tar_base" \
     "83e8285de55c00f74f45628f75aec4366b361913be486e2e96af1a7b05211094" \
     "f2878819ee41f261d2ed346e92c1fc2096e9eaa51e3e1fb32c7da1a21be77029"
 }

 function test_files_with_tar_base() {
   check_layers "files_with_tar_base" \
     "83e8285de55c00f74f45628f75aec4366b361913be486e2e96af1a7b05211094" \
     "c96f2793f6ade79f8f4a4cfe46f31752de14f3b1eae7f27aa0c7440f78f612f3"
 }

 function test_tar_with_files_base() {
   check_layers "tar_with_files_base" \
     "240dd12c02aee796394ce18eee3108475f7d544294b17fc90ec54e983601fe1b" \
     "2f1d1cc52ab8e72bf5affcac1a68a86c7f75679bf58a2b2a6fefdbfa0d239651"
 }

 function test_base_with_entrypoint() {
   check_layers "base_with_entrypoint" \
     "3cf09865c613d49e5fa6a1f7027744e51da662139ea833f8e757f70c8f75a554"

   check_entrypoint "base_with_entrypoint" \
     "3cf09865c613d49e5fa6a1f7027744e51da662139ea833f8e757f70c8f75a554" \
     '["/bar"]'

   # Check that the base layer has a port exposed.
   check_ports "base_with_entrypoint" \
     "3cf09865c613d49e5fa6a1f7027744e51da662139ea833f8e757f70c8f75a554" \
     '{"8080/tcp": {}}'
 }

 function test_derivative_with_shadowed_cmd() {
   check_layers "derivative_with_shadowed_cmd" \
     "3cf09865c613d49e5fa6a1f7027744e51da662139ea833f8e757f70c8f75a554" \
     "46e302dc2cb5c19baaeb479e8142ab1bb12ca77b3d7a0ecd379304413e6c5b28"
 }

 function test_derivative_with_cmd() {
   check_layers "derivative_with_cmd" \
     "3cf09865c613d49e5fa6a1f7027744e51da662139ea833f8e757f70c8f75a554" \
     "46e302dc2cb5c19baaeb479e8142ab1bb12ca77b3d7a0ecd379304413e6c5b28" \
     "968891207e14ab79a7ab3c71c796b88a4321ec30b9a74feb1d7c92d5a47c8bc2"

   check_entrypoint "derivative_with_cmd" \
     "968891207e14ab79a7ab3c71c796b88a4321ec30b9a74feb1d7c92d5a47c8bc2" \
     '["/bar"]'

   # Check that the middle layer has our shadowed arg.
   check_cmd "derivative_with_cmd" \
     "46e302dc2cb5c19baaeb479e8142ab1bb12ca77b3d7a0ecd379304413e6c5b28" \
     '["shadowed-arg"]'

   # Check that our topmost layer excludes the shadowed arg.
   check_cmd "derivative_with_cmd" \
     "968891207e14ab79a7ab3c71c796b88a4321ec30b9a74feb1d7c92d5a47c8bc2" \
     '["arg1", "arg2"]'

   # Check that the topmost layer has the ports exposed by the bottom
   # layer, and itself.
   check_ports "derivative_with_cmd" \
     "968891207e14ab79a7ab3c71c796b88a4321ec30b9a74feb1d7c92d5a47c8bc2" \
     '{"80/tcp": {}, "8080/tcp": {}}'
 }

 function test_derivative_with_volume() {
   check_layers "derivative_with_volume" \
     "f86da639a9346bec6d3a821ad1f716a177a8ff8f71d66f8b70238ce7e7ba51b8" \
     "839bbd055b732c784847b3ec112d88c94f3bb752147987daef916bc956f9adf0"

   # Check that the topmost layer has the ports exposed by the bottom
   # layer, and itself.
   check_volumes "derivative_with_volume" \
     "f86da639a9346bec6d3a821ad1f716a177a8ff8f71d66f8b70238ce7e7ba51b8" \
     '{"/logs": {}}'

   check_volumes "derivative_with_volume" \
     "839bbd055b732c784847b3ec112d88c94f3bb752147987daef916bc956f9adf0" \
     '{"/asdf": {}, "/blah": {}, "/logs": {}}'
 }

 function test_generated_tarball() {
   check_layers "generated_tarball" \
     "54b8328604115255cc76c12a2a51939be65c40bf182ff5a898a5fb57c38f7772"
 }

 function test_with_env() {
   check_layers "with_env" \
     "f86da639a9346bec6d3a821ad1f716a177a8ff8f71d66f8b70238ce7e7ba51b8" \
     "80b94376a90de45256c3e94c82bc3812bc5cbd05b7d01947f29e6805e8cd7018"

   check_env "with_env" \
     "80b94376a90de45256c3e94c82bc3812bc5cbd05b7d01947f29e6805e8cd7018" \
     '["bar=blah blah blah", "foo=/asdf"]'
 }

 function test_with_double_env() {
   check_layers "with_double_env" \
     "f86da639a9346bec6d3a821ad1f716a177a8ff8f71d66f8b70238ce7e7ba51b8" \
     "80b94376a90de45256c3e94c82bc3812bc5cbd05b7d01947f29e6805e8cd7018" \
     "548e1d847a1d051e3cb3af383b0ebe40d341c01c97e735ae5a78ee3e10353b93"

   # Check both the aggregation and the expansion of embedded variables.
   check_env "with_double_env" \
     "548e1d847a1d051e3cb3af383b0ebe40d341c01c97e735ae5a78ee3e10353b93" \
     '["bar=blah blah blah", "baz=/asdf blah blah blah", "foo=/asdf"]'
 }

 function test_with_double_env() {
   check_layers "with_double_env" \
     "f86da639a9346bec6d3a821ad1f716a177a8ff8f71d66f8b70238ce7e7ba51b8" \
     "80b94376a90de45256c3e94c82bc3812bc5cbd05b7d01947f29e6805e8cd7018" \
     "548e1d847a1d051e3cb3af383b0ebe40d341c01c97e735ae5a78ee3e10353b93"

   # Check both the aggregation and the expansion of embedded variables.
   check_env "with_double_env" \
     "548e1d847a1d051e3cb3af383b0ebe40d341c01c97e735ae5a78ee3e10353b93" \
     '["bar=blah blah blah", "baz=/asdf blah blah blah", "foo=/asdf"]'
 }

 function get_layer_listing() {
   local input=$1
   local layer=$2
   local test_data="${TEST_DATA_DIR}/${input}.tar"
   tar xOf "${test_data}" \
     "./${layer}/layer.tar" | tar tv | sed -e 's/^.*:00 //'
 }

 function test_data_path() {
   local no_data_path_sha="29bab1d66ea34ebbb9604704322458e0f06a3a9a7b0ac08df8b95a6c9c3d9320"
   local data_path_sha="9a5c6b96227af212d1300964aaeb0723e78e78de019de1ba2382603f3050558a"

   check_layers_aux "no_data_path_image" "${no_data_path_sha}"
   check_layers_aux "data_path_image" "${data_path_sha}"

   # Without data_path = "." the file will be inserted as `./test`
   # (since it is the path in the package) and with data_path = "."
   # the file will be inserted relatively to the testdata package
   # (so `./test/test`).
   check_eq $(get_layer_listing "no_data_path_image" "${no_data_path_sha}") \
     ./test
   check_eq $(get_layer_listing "data_path_image" "${data_path_sha}") \
     ./test/test
 }

 run_suite "build_test"
	#!/bin/bash

	# Copyright 2015 Google Inc. All rights reserved.
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.

	# Unit tests for docker_build

	DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
	source ${DIR}/testenv.sh \|\| { echo "testenv.sh not found!" >&2; exit 1; }

	readonly PLATFORM="$(uname -s \| tr 'A-Z' 'a-z')"
	if [ "${PLATFORM}" = "darwin" ]; then
	readonly MAGIC_TIMESTAMP="$(date -r 0 "+%b %e %Y")"
	else
	readonly MAGIC_TIMESTAMP="$(date --date=@0 "+%F %R")"
	fi

	function EXPECT_CONTAINS() {
	local complete="${1}"
	local substring="${2}"
	local message="${3:-Expected '${substring}' not found in '${complete}'}"

	echo "${complete}" \| grep -Fsq -- "${substring}" \
	\|\| fail "$message"
	}

	function check_property() {
	local property="${1}"
	local tarball="${2}"
	local layer="${3}"
	local expected="${4}"
	local test_data="${TEST_DATA_DIR}/${tarball}.tar"

	local metadata="$(tar xOf "${test_data}" "./${layer}/json")"

	# This would be much more accurate if we had 'jq' everywhere.
	EXPECT_CONTAINS "${metadata}" "\"${property}\": ${expected}"
	}

	function check_no_property() {
	local property="${1}"
	local tarball="${2}"
	local layer="${3}"
	local test_data="${TEST_DATA_DIR}/${tarball}.tar"

	tar xOf "${test_data}" "./${layer}/json" >$TEST_log
	expect_not_log "\"${property}\":"

	# notop variant
	test_data="${TEST_DATA_DIR}/notop_${tarball}.tar"
	tar xOf "${test_data}" "./${layer}/json" >$TEST_log
	expect_not_log "\"${property}\":"
	}

	function check_size() {
	check_property Size "${@}"
	}

	function check_id() {
	check_property id "${@}"
	}

	function check_parent() {
	check_property parent "${@}"
	}

	function check_entrypoint() {
	input="$1"
	shift
	check_property Entrypoint "${input}" "${@}"
	check_property Entrypoint "notop_${input}" "${@}"
	}

	function check_cmd() {
	input="$1"
	shift
	check_property Cmd "${input}" "${@}"
	check_property Cmd "notop_${input}" "${@}"
	}

	function check_ports() {
	input="$1"
	shift
	check_property ExposedPorts "${input}" "${@}"
	check_property ExposedPorts "${input}" "${@}"
	}

	function check_volumes() {
	input="$1"
	shift
	check_property Volumes "${input}" "${@}"
	check_property Volumes "notop_${input}" "${@}"
	}

	function check_env() {
	input="$1"
	shift
	check_property Env "${input}" "${@}"
	check_property Env "notop_${input}" "${@}"
	}

	function check_layers_aux() {
	local input=${1}
	shift 1
	local expected_layers=(${*})

	local expected_layers_sorted=(
	$(for i in ${expected_layers[*]}; do echo $i; done \| sort)
	)
	local test_data="${TEST_DATA_DIR}/${input}.tar"

	# Verbose output for testing.
	tar tvf "${test_data}"

	local actual_layers=(
	$(tar tvf ${test_data} \| tr -s ' ' \| cut -d' ' -f 4- \| sort \
	\| cut -d'/' -f 2 \| grep -E '^[0-9a-f]+$' \| sort \| uniq))

	# Verbose output for testing.
	echo Expected: ${expected_layers_sorted[@]}
	echo Actual: ${actual_layers[@]}

	check_eq "${#expected_layers[@]}" "${#actual_layers[@]}"

	local index=0
	local parent=
	while [ "${index}" -lt "${#expected_layers[@]}" ]
	do
	# Check that the nth sorted layer matches
	check_eq "${expected_layers_sorted[$index]}" "${actual_layers[$index]}"

	# Grab the ordered layer and check it.
	local layer="${expected_layers[$index]}"

	# Verbose output for testing.
	echo Checking layer: "${layer}"

	local listing="$(tar xOf "${test_data}" "./${layer}/layer.tar" \| tar tv)"

	# Check that all files in the layer, if any, have the magic timestamp
	check_eq "$(echo "${listing}" \| grep -Fv "${MAGIC_TIMESTAMP}")" ""

	check_id "${input}" "${layer}" "\"${layer}\""

	# Check that the layer contains its predecessor as its parent in the JSON.
	if [[ -n "${parent}" ]]; then
	check_parent "${input}" "${layer}" "\"${parent}\""
	fi

	# Check that the layer's size metadata matches the layer's tarball's size.
	local layer_size=$(tar xOf "${test_data}" "./${layer}/layer.tar" \| wc -c \| xargs)
	check_size "${input}" "${layer}" "${layer_size}"

	index=$((index + 1))
	parent=$layer
	done
	}

	function check_layers() {
	local input=$1
	shift
	check_layers_aux "$input" "$@"
	check_layers_aux "notop_$input" "$@"
	}

	function test_gen_image() {
	grep -Fsq "./gen.out" "$TEST_DATA_DIR/gen_image.tar" \
	\|\| fail "'./gen.out' not found in '$TEST_DATA_DIR/gen_image.tar'"
	}

	function test_files_base() {
	check_layers "files_base" \
	"240dd12c02aee796394ce18eee3108475f7d544294b17fc90ec54e983601fe1b"
	}

	function test_files_with_files_base() {
	check_layers "files_with_files_base" \
	"240dd12c02aee796394ce18eee3108475f7d544294b17fc90ec54e983601fe1b" \
	"a9fd8cab2b9831ca2a13f371c04667a7698ef3baa90f3e820c4568d774cc69ab"
	}

	function test_tar_base() {
	check_layers "tar_base" \
	"83e8285de55c00f74f45628f75aec4366b361913be486e2e96af1a7b05211094"

	# Check that this layer doesn't have any entrypoint data by looking
	# for any entrypoint.
	check_no_property "Entrypoint" "tar_base" \
	"83e8285de55c00f74f45628f75aec4366b361913be486e2e96af1a7b05211094"
	}

	function test_tar_with_tar_base() {
	check_layers "tar_with_tar_base" \
	"83e8285de55c00f74f45628f75aec4366b361913be486e2e96af1a7b05211094" \
	"f2878819ee41f261d2ed346e92c1fc2096e9eaa51e3e1fb32c7da1a21be77029"
	}

	function test_files_with_tar_base() {
	check_layers "files_with_tar_base" \
	"83e8285de55c00f74f45628f75aec4366b361913be486e2e96af1a7b05211094" \
	"c96f2793f6ade79f8f4a4cfe46f31752de14f3b1eae7f27aa0c7440f78f612f3"
	}

	function test_tar_with_files_base() {
	check_layers "tar_with_files_base" \
	"240dd12c02aee796394ce18eee3108475f7d544294b17fc90ec54e983601fe1b" \
	"2f1d1cc52ab8e72bf5affcac1a68a86c7f75679bf58a2b2a6fefdbfa0d239651"
	}

	function test_base_with_entrypoint() {
	check_layers "base_with_entrypoint" \
	"3cf09865c613d49e5fa6a1f7027744e51da662139ea833f8e757f70c8f75a554"

	check_entrypoint "base_with_entrypoint" \
	"3cf09865c613d49e5fa6a1f7027744e51da662139ea833f8e757f70c8f75a554" \
	'["/bar"]'

	# Check that the base layer has a port exposed.
	check_ports "base_with_entrypoint" \
	"3cf09865c613d49e5fa6a1f7027744e51da662139ea833f8e757f70c8f75a554" \
	'{"8080/tcp": {}}'
	}

	function test_derivative_with_shadowed_cmd() {
	check_layers "derivative_with_shadowed_cmd" \
	"3cf09865c613d49e5fa6a1f7027744e51da662139ea833f8e757f70c8f75a554" \
	"46e302dc2cb5c19baaeb479e8142ab1bb12ca77b3d7a0ecd379304413e6c5b28"
	}

	function test_derivative_with_cmd() {
	check_layers "derivative_with_cmd" \
	"3cf09865c613d49e5fa6a1f7027744e51da662139ea833f8e757f70c8f75a554" \
	"46e302dc2cb5c19baaeb479e8142ab1bb12ca77b3d7a0ecd379304413e6c5b28" \
	"968891207e14ab79a7ab3c71c796b88a4321ec30b9a74feb1d7c92d5a47c8bc2"

	check_entrypoint "derivative_with_cmd" \
	"968891207e14ab79a7ab3c71c796b88a4321ec30b9a74feb1d7c92d5a47c8bc2" \
	'["/bar"]'

	# Check that the middle layer has our shadowed arg.
	check_cmd "derivative_with_cmd" \
	"46e302dc2cb5c19baaeb479e8142ab1bb12ca77b3d7a0ecd379304413e6c5b28" \
	'["shadowed-arg"]'

	# Check that our topmost layer excludes the shadowed arg.
	check_cmd "derivative_with_cmd" \
	"968891207e14ab79a7ab3c71c796b88a4321ec30b9a74feb1d7c92d5a47c8bc2" \
	'["arg1", "arg2"]'

	# Check that the topmost layer has the ports exposed by the bottom
	# layer, and itself.
	check_ports "derivative_with_cmd" \
	"968891207e14ab79a7ab3c71c796b88a4321ec30b9a74feb1d7c92d5a47c8bc2" \
	'{"80/tcp": {}, "8080/tcp": {}}'
	}

	function test_derivative_with_volume() {
	check_layers "derivative_with_volume" \
	"f86da639a9346bec6d3a821ad1f716a177a8ff8f71d66f8b70238ce7e7ba51b8" \
	"839bbd055b732c784847b3ec112d88c94f3bb752147987daef916bc956f9adf0"

	# Check that the topmost layer has the ports exposed by the bottom
	# layer, and itself.
	check_volumes "derivative_with_volume" \
	"f86da639a9346bec6d3a821ad1f716a177a8ff8f71d66f8b70238ce7e7ba51b8" \
	'{"/logs": {}}'

	check_volumes "derivative_with_volume" \
	"839bbd055b732c784847b3ec112d88c94f3bb752147987daef916bc956f9adf0" \
	'{"/asdf": {}, "/blah": {}, "/logs": {}}'
	}

	function test_generated_tarball() {
	check_layers "generated_tarball" \
	"54b8328604115255cc76c12a2a51939be65c40bf182ff5a898a5fb57c38f7772"
	}

	function test_with_env() {
	check_layers "with_env" \
	"f86da639a9346bec6d3a821ad1f716a177a8ff8f71d66f8b70238ce7e7ba51b8" \
	"80b94376a90de45256c3e94c82bc3812bc5cbd05b7d01947f29e6805e8cd7018"

	check_env "with_env" \
	"80b94376a90de45256c3e94c82bc3812bc5cbd05b7d01947f29e6805e8cd7018" \
	'["bar=blah blah blah", "foo=/asdf"]'
	}

	function test_with_double_env() {
	check_layers "with_double_env" \
	"f86da639a9346bec6d3a821ad1f716a177a8ff8f71d66f8b70238ce7e7ba51b8" \
	"80b94376a90de45256c3e94c82bc3812bc5cbd05b7d01947f29e6805e8cd7018" \
	"548e1d847a1d051e3cb3af383b0ebe40d341c01c97e735ae5a78ee3e10353b93"

	# Check both the aggregation and the expansion of embedded variables.
	check_env "with_double_env" \
	"548e1d847a1d051e3cb3af383b0ebe40d341c01c97e735ae5a78ee3e10353b93" \
	'["bar=blah blah blah", "baz=/asdf blah blah blah", "foo=/asdf"]'
	}

	function test_with_double_env() {
	check_layers "with_double_env" \
	"f86da639a9346bec6d3a821ad1f716a177a8ff8f71d66f8b70238ce7e7ba51b8" \
	"80b94376a90de45256c3e94c82bc3812bc5cbd05b7d01947f29e6805e8cd7018" \
	"548e1d847a1d051e3cb3af383b0ebe40d341c01c97e735ae5a78ee3e10353b93"

	# Check both the aggregation and the expansion of embedded variables.
	check_env "with_double_env" \
	"548e1d847a1d051e3cb3af383b0ebe40d341c01c97e735ae5a78ee3e10353b93" \
	'["bar=blah blah blah", "baz=/asdf blah blah blah", "foo=/asdf"]'
	}

	function get_layer_listing() {
	local input=$1
	local layer=$2
	local test_data="${TEST_DATA_DIR}/${input}.tar"
	tar xOf "${test_data}" \
	"./${layer}/layer.tar" \| tar tv \| sed -e 's/^.*:00 //'
	}

	function test_data_path() {
	local no_data_path_sha="29bab1d66ea34ebbb9604704322458e0f06a3a9a7b0ac08df8b95a6c9c3d9320"
	local data_path_sha="9a5c6b96227af212d1300964aaeb0723e78e78de019de1ba2382603f3050558a"

	check_layers_aux "no_data_path_image" "${no_data_path_sha}"
	check_layers_aux "data_path_image" "${data_path_sha}"

	# Without data_path = "." the file will be inserted as `./test`
	# (since it is the path in the package) and with data_path = "."
	# the file will be inserted relatively to the testdata package
	# (so `./test/test`).
	check_eq $(get_layer_listing "no_data_path_image" "${no_data_path_sha}") \
	./test
	check_eq $(get_layer_listing "data_path_image" "${data_path_sha}") \
	./test/test
	}

	run_suite "build_test"