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

 #!/bin/bash

 # Copyright 2015 The Bazel Authors. 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_label() {
   input="$1"
   shift
   check_property Label "${input}" "${@}"
   check_property Label "notop_${input}" "${@}"
 }

 function check_workdir() {
   input="$1"
   shift
   check_property WorkingDir "${input}" "${@}"
   check_property WorkingDir "notop_${input}" "${@}"
 }

 function check_user() {
   input="$1"
   shift
   check_property User "${input}" "${@}"
   check_property User "notop_${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}" || true)" ""

     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_dummy_repository() {
   local layer="0279f3ce8b08d10506abcf452393b3e48439f5eca41b836fae59a0d509fbafea"
   local test_data="${TEST_DATA_DIR}/dummy_repository.tar"
   check_layers_aux "dummy_repository" "$layer"


   local repositories="$(tar xOf "${test_data}" "./repositories")"
   # This would really need to use `jq` instead.
   echo "${repositories}" | \
     grep -Esq -- "\"gcr.io/dummy/[a-zA-Z_]*_docker_testdata\": {" \
     || fail "Cannot find image in repository gcr.io/dummy in '${repositories}'"
   EXPECT_CONTAINS "${repositories}" "\"dummy_repository\": \"$layer\""
 }

 function test_files_base() {
   check_layers "files_base" \
     "82ca3945f7d07df82f274d7fafe83fd664c2154e5c64c988916ccd5b217bb710"
 }

 function test_files_with_files_base() {
   check_layers "files_with_files_base" \
     "82ca3945f7d07df82f274d7fafe83fd664c2154e5c64c988916ccd5b217bb710" \
     "84c0d09919ae8b06cb6b064d8cd5eab63341a46f11ccc7ecbe270ad3e1f52744"
 }

 function test_tar_base() {
   check_layers "tar_base" \
     "8b9e4db9dd4b990ee6d8adc2843ad64702ad9063ae6c22e8ca5f94aa54e71277"

   # Check that this layer doesn't have any entrypoint data by looking
   # for *any* entrypoint.
   check_no_property "Entrypoint" "tar_base" \
     "8b9e4db9dd4b990ee6d8adc2843ad64702ad9063ae6c22e8ca5f94aa54e71277"
 }

 function test_tar_with_tar_base() {
   check_layers "tar_with_tar_base" \
     "8b9e4db9dd4b990ee6d8adc2843ad64702ad9063ae6c22e8ca5f94aa54e71277" \
     "1cc81a2aaec2e3727d98d48bf9ba09d3ac96ef48adf5edae861d15dd0191dc40"
 }

 function test_directory_with_tar_base() {
   check_layers "directory_with_tar_base" \
     "8b9e4db9dd4b990ee6d8adc2843ad64702ad9063ae6c22e8ca5f94aa54e71277" \
     "e56ddeb8279698484f50d480f71cb5380223ad0f451766b7b9a9348129d02542"
 }

 function test_files_with_tar_base() {
   check_layers "files_with_tar_base" \
     "8b9e4db9dd4b990ee6d8adc2843ad64702ad9063ae6c22e8ca5f94aa54e71277" \
     "f099727fa58f9b688e77b511b3cc728b86ae0e84d197b9330bd51082ad5589f2"
 }

 function test_workdir_with_tar_base() {
   check_layers "workdir_with_tar_base" \
     "8b9e4db9dd4b990ee6d8adc2843ad64702ad9063ae6c22e8ca5f94aa54e71277" \
     "f24cbe53bd1b78909c6dba0bd47016354f3488b35b85aeee68ecc423062b927e"
 }

 function test_tar_with_files_base() {
   check_layers "tar_with_files_base" \
     "82ca3945f7d07df82f274d7fafe83fd664c2154e5c64c988916ccd5b217bb710" \
     "bee1a325e4b51a1dcfd7e447987b4e130590815865ab22e8744878053d525f20"
 }

 function test_base_with_entrypoint() {
   check_layers "base_with_entrypoint" \
     "4acbeb0495918726c0107e372b421e1d2a6fd4825d58fc3f0b0b2a719fb3ce1b"

   check_entrypoint "base_with_entrypoint" \
     "4acbeb0495918726c0107e372b421e1d2a6fd4825d58fc3f0b0b2a719fb3ce1b" \
     '["/bar"]'

   # Check that the base layer has a port exposed.
   check_ports "base_with_entrypoint" \
     "4acbeb0495918726c0107e372b421e1d2a6fd4825d58fc3f0b0b2a719fb3ce1b" \
     '{"8080/tcp": {}}'
 }

 function test_derivative_with_shadowed_cmd() {
   check_layers "derivative_with_shadowed_cmd" \
     "4acbeb0495918726c0107e372b421e1d2a6fd4825d58fc3f0b0b2a719fb3ce1b" \
     "e35f57dc6c1e84ae67dcaaf3479a3a3c0f52ac4d194073bd6214e04c05beab42"
 }

 function test_derivative_with_cmd() {
   check_layers "derivative_with_cmd" \
     "4acbeb0495918726c0107e372b421e1d2a6fd4825d58fc3f0b0b2a719fb3ce1b" \
     "e35f57dc6c1e84ae67dcaaf3479a3a3c0f52ac4d194073bd6214e04c05beab42" \
     "186289545131e34510006ac79498078dcf41736a5eb9a36920a6b30d3f45bc01"

   check_entrypoint "derivative_with_cmd" \
     "186289545131e34510006ac79498078dcf41736a5eb9a36920a6b30d3f45bc01" \
     '["/bar"]'

   # Check that the middle layer has our shadowed arg.
   check_cmd "derivative_with_cmd" \
     "e35f57dc6c1e84ae67dcaaf3479a3a3c0f52ac4d194073bd6214e04c05beab42" \
     '["shadowed-arg"]'

   # Check that our topmost layer excludes the shadowed arg.
   check_cmd "derivative_with_cmd" \
     "186289545131e34510006ac79498078dcf41736a5eb9a36920a6b30d3f45bc01" \
     '["arg1", "arg2"]'

   # Check that the topmost layer has the ports exposed by the bottom
   # layer, and itself.
   check_ports "derivative_with_cmd" \
     "186289545131e34510006ac79498078dcf41736a5eb9a36920a6b30d3f45bc01" \
     '{"80/tcp": {}, "8080/tcp": {}}'
 }

 function test_derivative_with_volume() {
   check_layers "derivative_with_volume" \
     "125e7cfb9d4a6d803a57b88bcdb05d9a6a47ac0d6312a8b4cff52a2685c5c858" \
     "08424283ad3a7e020e210bec22b166d7ebba57f7ba2d0713c2fd7bd1e2038f88"

   # Check that the topmost layer has the ports exposed by the bottom
   # layer, and itself.
   check_volumes "derivative_with_volume" \
     "125e7cfb9d4a6d803a57b88bcdb05d9a6a47ac0d6312a8b4cff52a2685c5c858" \
     '{"/logs": {}}'

   check_volumes "derivative_with_volume" \
     "08424283ad3a7e020e210bec22b166d7ebba57f7ba2d0713c2fd7bd1e2038f88" \
     '{"/asdf": {}, "/blah": {}, "/logs": {}}'
 }

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

 function test_with_env() {
   check_layers "with_env" \
     "125e7cfb9d4a6d803a57b88bcdb05d9a6a47ac0d6312a8b4cff52a2685c5c858" \
     "42a1bd0f449f61a23b8a7776875ffb6707b34ee99c87d6428a7394f5e55e8624"

   check_env "with_env" \
     "42a1bd0f449f61a23b8a7776875ffb6707b34ee99c87d6428a7394f5e55e8624" \
     '["bar=blah blah blah", "foo=/asdf"]'
 }

 function test_with_double_env() {
   check_layers "with_double_env" \
     "125e7cfb9d4a6d803a57b88bcdb05d9a6a47ac0d6312a8b4cff52a2685c5c858" \
     "42a1bd0f449f61a23b8a7776875ffb6707b34ee99c87d6428a7394f5e55e8624" \
     "576a9fd9c690be04dc7aacbb9dbd1f14816e32dbbcc510f4d42325bbff7163dd"

   # Check both the aggregation and the expansion of embedded variables.
   check_env "with_double_env" \
     "576a9fd9c690be04dc7aacbb9dbd1f14816e32dbbcc510f4d42325bbff7163dd" \
     '["bar=blah blah blah", "baz=/asdf blah blah blah", "foo=/asdf"]'
 }

 function test_with_label() {
   check_layers "with_label" \
     "125e7cfb9d4a6d803a57b88bcdb05d9a6a47ac0d6312a8b4cff52a2685c5c858" \
     "eba6abda3d259ab6ed5f4d48b76df72a5193fad894d4ae78fbf0a363d8f9e8fd"

   check_label "with_label" \
     "eba6abda3d259ab6ed5f4d48b76df72a5193fad894d4ae78fbf0a363d8f9e8fd" \
     '["com.example.bar={\"name\": \"blah\"}", "com.example.baz=qux", "com.example.foo={\"name\": \"blah\"}"]'
 }

 function test_with_double_label() {
   check_layers "with_double_label" \
     "125e7cfb9d4a6d803a57b88bcdb05d9a6a47ac0d6312a8b4cff52a2685c5c858" \
     "eba6abda3d259ab6ed5f4d48b76df72a5193fad894d4ae78fbf0a363d8f9e8fd" \
     "bfe88fbb5e24fc5bff138f7a1923d53a2ee1bbc8e54b6f5d9c371d5f48b6b023" \

   check_label "with_double_label" \
     "bfe88fbb5e24fc5bff138f7a1923d53a2ee1bbc8e54b6f5d9c371d5f48b6b023" \
     '["com.example.bar={\"name\": \"blah\"}", "com.example.baz=qux", "com.example.foo={\"name\": \"blah\"}", "com.example.qux={\"name\": \"blah-blah\"}"]'
 }

 function test_with_user() {
   check_user "with_user" \
     "65664d4d78ff321684e2a8bf165792ce562c5990c9ba992e6288dcb1ec7f675c" \
     "\"nobody\""
 }

 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="451d182e5c71840f00ba9726dc0239db73a21b7e89e79c77f677e3f7c5c23d44"
   local data_path_sha="9a41c9e1709558f7ef06f28f66e9056feafa7e0f83990801e1b27c987278d8e8"
   local absolute_data_path_sha="f196c42ab4f3eb850d9655b950b824db2c99c01527703ac486a7b48bb2a34f44"
   local root_data_path_sha="19d7fd26d67bfaeedd6232dcd441f14ee163bc81c56ed565cc20e73311c418b6"

   check_layers_aux "no_data_path_image" "${no_data_path_sha}"
   check_layers_aux "data_path_image" "${data_path_sha}"
   check_layers_aux "absolute_data_path_image" "${absolute_data_path_sha}"
   check_layers_aux "root_data_path_image" "${root_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/test'

   # With an absolute path for data_path, we should strip that prefix
   # from the files' paths. Since the testdata images are in
   # //tools/build_defs/docker/testdata and data_path is set to
   # "/tools/build_defs", we should have `docker` as the top-level
   # directory.
   check_eq "$(get_layer_listing "absolute_data_path_image" "${absolute_data_path_sha}")" \
     './
 ./docker/
 ./docker/testdata/
 ./docker/testdata/test/
 ./docker/testdata/test/test'

   # With data_path = "/", we expect the entire path from the repository
   # root.
   check_eq "$(get_layer_listing "root_data_path_image" "${root_data_path_sha}")" \
     "./
 ./tools/
 ./tools/build_defs/
 ./tools/build_defs/docker/
 ./tools/build_defs/docker/testdata/
 ./tools/build_defs/docker/testdata/test/
 ./tools/build_defs/docker/testdata/test/test"
 }

 function test_extras_with_deb() {
   local test_data="${TEST_DATA_DIR}/extras_with_deb.tar"
   local sha=$(tar xOf ${test_data} ./top)

   # The content of the layer should have no duplicate
   local layer_listing="$(get_layer_listing "extras_with_deb" "${sha}" | sort)"
   check_eq "${layer_listing}" \
 "./
 ./etc/
 ./etc/nsswitch.conf
 ./tmp/
 ./usr/
 ./usr/bin/
 ./usr/bin/java -> /path/to/bin/java
 ./usr/titi"
 }

 run_suite "build_test"
	#!/bin/bash

	# Copyright 2015 The Bazel Authors. 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_label() {
	input="$1"
	shift
	check_property Label "${input}" "${@}"
	check_property Label "notop_${input}" "${@}"
	}

	function check_workdir() {
	input="$1"
	shift
	check_property WorkingDir "${input}" "${@}"
	check_property WorkingDir "notop_${input}" "${@}"
	}

	function check_user() {
	input="$1"
	shift
	check_property User "${input}" "${@}"
	check_property User "notop_${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}" \|\| true)" ""

	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_dummy_repository() {
	local layer="0279f3ce8b08d10506abcf452393b3e48439f5eca41b836fae59a0d509fbafea"
	local test_data="${TEST_DATA_DIR}/dummy_repository.tar"
	check_layers_aux "dummy_repository" "$layer"


	local repositories="$(tar xOf "${test_data}" "./repositories")"
	# This would really need to use `jq` instead.
	echo "${repositories}" \| \
	grep -Esq -- "\"gcr.io/dummy/[a-zA-Z_]*_docker_testdata\": {" \
	\|\| fail "Cannot find image in repository gcr.io/dummy in '${repositories}'"
	EXPECT_CONTAINS "${repositories}" "\"dummy_repository\": \"$layer\""
	}

	function test_files_base() {
	check_layers "files_base" \
	"82ca3945f7d07df82f274d7fafe83fd664c2154e5c64c988916ccd5b217bb710"
	}

	function test_files_with_files_base() {
	check_layers "files_with_files_base" \
	"82ca3945f7d07df82f274d7fafe83fd664c2154e5c64c988916ccd5b217bb710" \
	"84c0d09919ae8b06cb6b064d8cd5eab63341a46f11ccc7ecbe270ad3e1f52744"
	}

	function test_tar_base() {
	check_layers "tar_base" \
	"8b9e4db9dd4b990ee6d8adc2843ad64702ad9063ae6c22e8ca5f94aa54e71277"

	# Check that this layer doesn't have any entrypoint data by looking
	# for any entrypoint.
	check_no_property "Entrypoint" "tar_base" \
	"8b9e4db9dd4b990ee6d8adc2843ad64702ad9063ae6c22e8ca5f94aa54e71277"
	}

	function test_tar_with_tar_base() {
	check_layers "tar_with_tar_base" \
	"8b9e4db9dd4b990ee6d8adc2843ad64702ad9063ae6c22e8ca5f94aa54e71277" \
	"1cc81a2aaec2e3727d98d48bf9ba09d3ac96ef48adf5edae861d15dd0191dc40"
	}

	function test_directory_with_tar_base() {
	check_layers "directory_with_tar_base" \
	"8b9e4db9dd4b990ee6d8adc2843ad64702ad9063ae6c22e8ca5f94aa54e71277" \
	"e56ddeb8279698484f50d480f71cb5380223ad0f451766b7b9a9348129d02542"
	}

	function test_files_with_tar_base() {
	check_layers "files_with_tar_base" \
	"8b9e4db9dd4b990ee6d8adc2843ad64702ad9063ae6c22e8ca5f94aa54e71277" \
	"f099727fa58f9b688e77b511b3cc728b86ae0e84d197b9330bd51082ad5589f2"
	}

	function test_workdir_with_tar_base() {
	check_layers "workdir_with_tar_base" \
	"8b9e4db9dd4b990ee6d8adc2843ad64702ad9063ae6c22e8ca5f94aa54e71277" \
	"f24cbe53bd1b78909c6dba0bd47016354f3488b35b85aeee68ecc423062b927e"
	}

	function test_tar_with_files_base() {
	check_layers "tar_with_files_base" \
	"82ca3945f7d07df82f274d7fafe83fd664c2154e5c64c988916ccd5b217bb710" \
	"bee1a325e4b51a1dcfd7e447987b4e130590815865ab22e8744878053d525f20"
	}

	function test_base_with_entrypoint() {
	check_layers "base_with_entrypoint" \
	"4acbeb0495918726c0107e372b421e1d2a6fd4825d58fc3f0b0b2a719fb3ce1b"

	check_entrypoint "base_with_entrypoint" \
	"4acbeb0495918726c0107e372b421e1d2a6fd4825d58fc3f0b0b2a719fb3ce1b" \
	'["/bar"]'

	# Check that the base layer has a port exposed.
	check_ports "base_with_entrypoint" \
	"4acbeb0495918726c0107e372b421e1d2a6fd4825d58fc3f0b0b2a719fb3ce1b" \
	'{"8080/tcp": {}}'
	}

	function test_derivative_with_shadowed_cmd() {
	check_layers "derivative_with_shadowed_cmd" \
	"4acbeb0495918726c0107e372b421e1d2a6fd4825d58fc3f0b0b2a719fb3ce1b" \
	"e35f57dc6c1e84ae67dcaaf3479a3a3c0f52ac4d194073bd6214e04c05beab42"
	}

	function test_derivative_with_cmd() {
	check_layers "derivative_with_cmd" \
	"4acbeb0495918726c0107e372b421e1d2a6fd4825d58fc3f0b0b2a719fb3ce1b" \
	"e35f57dc6c1e84ae67dcaaf3479a3a3c0f52ac4d194073bd6214e04c05beab42" \
	"186289545131e34510006ac79498078dcf41736a5eb9a36920a6b30d3f45bc01"

	check_entrypoint "derivative_with_cmd" \
	"186289545131e34510006ac79498078dcf41736a5eb9a36920a6b30d3f45bc01" \
	'["/bar"]'

	# Check that the middle layer has our shadowed arg.
	check_cmd "derivative_with_cmd" \
	"e35f57dc6c1e84ae67dcaaf3479a3a3c0f52ac4d194073bd6214e04c05beab42" \
	'["shadowed-arg"]'

	# Check that our topmost layer excludes the shadowed arg.
	check_cmd "derivative_with_cmd" \
	"186289545131e34510006ac79498078dcf41736a5eb9a36920a6b30d3f45bc01" \
	'["arg1", "arg2"]'

	# Check that the topmost layer has the ports exposed by the bottom
	# layer, and itself.
	check_ports "derivative_with_cmd" \
	"186289545131e34510006ac79498078dcf41736a5eb9a36920a6b30d3f45bc01" \
	'{"80/tcp": {}, "8080/tcp": {}}'
	}

	function test_derivative_with_volume() {
	check_layers "derivative_with_volume" \
	"125e7cfb9d4a6d803a57b88bcdb05d9a6a47ac0d6312a8b4cff52a2685c5c858" \
	"08424283ad3a7e020e210bec22b166d7ebba57f7ba2d0713c2fd7bd1e2038f88"

	# Check that the topmost layer has the ports exposed by the bottom
	# layer, and itself.
	check_volumes "derivative_with_volume" \
	"125e7cfb9d4a6d803a57b88bcdb05d9a6a47ac0d6312a8b4cff52a2685c5c858" \
	'{"/logs": {}}'

	check_volumes "derivative_with_volume" \
	"08424283ad3a7e020e210bec22b166d7ebba57f7ba2d0713c2fd7bd1e2038f88" \
	'{"/asdf": {}, "/blah": {}, "/logs": {}}'
	}

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

	function test_with_env() {
	check_layers "with_env" \
	"125e7cfb9d4a6d803a57b88bcdb05d9a6a47ac0d6312a8b4cff52a2685c5c858" \
	"42a1bd0f449f61a23b8a7776875ffb6707b34ee99c87d6428a7394f5e55e8624"

	check_env "with_env" \
	"42a1bd0f449f61a23b8a7776875ffb6707b34ee99c87d6428a7394f5e55e8624" \
	'["bar=blah blah blah", "foo=/asdf"]'
	}

	function test_with_double_env() {
	check_layers "with_double_env" \
	"125e7cfb9d4a6d803a57b88bcdb05d9a6a47ac0d6312a8b4cff52a2685c5c858" \
	"42a1bd0f449f61a23b8a7776875ffb6707b34ee99c87d6428a7394f5e55e8624" \
	"576a9fd9c690be04dc7aacbb9dbd1f14816e32dbbcc510f4d42325bbff7163dd"

	# Check both the aggregation and the expansion of embedded variables.
	check_env "with_double_env" \
	"576a9fd9c690be04dc7aacbb9dbd1f14816e32dbbcc510f4d42325bbff7163dd" \
	'["bar=blah blah blah", "baz=/asdf blah blah blah", "foo=/asdf"]'
	}

	function test_with_label() {
	check_layers "with_label" \
	"125e7cfb9d4a6d803a57b88bcdb05d9a6a47ac0d6312a8b4cff52a2685c5c858" \
	"eba6abda3d259ab6ed5f4d48b76df72a5193fad894d4ae78fbf0a363d8f9e8fd"

	check_label "with_label" \
	"eba6abda3d259ab6ed5f4d48b76df72a5193fad894d4ae78fbf0a363d8f9e8fd" \
	'["com.example.bar={\"name\": \"blah\"}", "com.example.baz=qux", "com.example.foo={\"name\": \"blah\"}"]'
	}

	function test_with_double_label() {
	check_layers "with_double_label" \
	"125e7cfb9d4a6d803a57b88bcdb05d9a6a47ac0d6312a8b4cff52a2685c5c858" \
	"eba6abda3d259ab6ed5f4d48b76df72a5193fad894d4ae78fbf0a363d8f9e8fd" \
	"bfe88fbb5e24fc5bff138f7a1923d53a2ee1bbc8e54b6f5d9c371d5f48b6b023" \

	check_label "with_double_label" \
	"bfe88fbb5e24fc5bff138f7a1923d53a2ee1bbc8e54b6f5d9c371d5f48b6b023" \
	'["com.example.bar={\"name\": \"blah\"}", "com.example.baz=qux", "com.example.foo={\"name\": \"blah\"}", "com.example.qux={\"name\": \"blah-blah\"}"]'
	}

	function test_with_user() {
	check_user "with_user" \
	"65664d4d78ff321684e2a8bf165792ce562c5990c9ba992e6288dcb1ec7f675c" \
	"\"nobody\""
	}

	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="451d182e5c71840f00ba9726dc0239db73a21b7e89e79c77f677e3f7c5c23d44"
	local data_path_sha="9a41c9e1709558f7ef06f28f66e9056feafa7e0f83990801e1b27c987278d8e8"
	local absolute_data_path_sha="f196c42ab4f3eb850d9655b950b824db2c99c01527703ac486a7b48bb2a34f44"
	local root_data_path_sha="19d7fd26d67bfaeedd6232dcd441f14ee163bc81c56ed565cc20e73311c418b6"

	check_layers_aux "no_data_path_image" "${no_data_path_sha}"
	check_layers_aux "data_path_image" "${data_path_sha}"
	check_layers_aux "absolute_data_path_image" "${absolute_data_path_sha}"
	check_layers_aux "root_data_path_image" "${root_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/test'

	# With an absolute path for data_path, we should strip that prefix
	# from the files' paths. Since the testdata images are in
	# //tools/build_defs/docker/testdata and data_path is set to
	# "/tools/build_defs", we should have `docker` as the top-level
	# directory.
	check_eq "$(get_layer_listing "absolute_data_path_image" "${absolute_data_path_sha}")" \
	'./
	./docker/
	./docker/testdata/
	./docker/testdata/test/
	./docker/testdata/test/test'

	# With data_path = "/", we expect the entire path from the repository
	# root.
	check_eq "$(get_layer_listing "root_data_path_image" "${root_data_path_sha}")" \
	"./
	./tools/
	./tools/build_defs/
	./tools/build_defs/docker/
	./tools/build_defs/docker/testdata/
	./tools/build_defs/docker/testdata/test/
	./tools/build_defs/docker/testdata/test/test"
	}

	function test_extras_with_deb() {
	local test_data="${TEST_DATA_DIR}/extras_with_deb.tar"
	local sha=$(tar xOf ${test_data} ./top)

	# The content of the layer should have no duplicate
	local layer_listing="$(get_layer_listing "extras_with_deb" "${sha}" \| sort)"
	check_eq "${layer_listing}" \
	"./
	./etc/
	./etc/nsswitch.conf
	./tmp/
	./usr/
	./usr/bin/
	./usr/bin/java -> /path/to/bin/java
	./usr/titi"
	}

	run_suite "build_test"