js/private/test/image/BUILD.bazel

load("@bazel_lib//lib:transitions.bzl", "platform_transition_filegroup")
load("@npm//:defs.bzl", "npm_link_all_packages")
load("//js:defs.bzl", "js_binary")
load(":asserts.bzl", "assert_checksum", "assert_js_image_layer_listings", "make_js_image_layer")

npm_link_all_packages()

js_binary(
    name = "bin",
    data = [
        ":node_modules",
    ],
    entry_point = "main.js",
)

platform(
    name = "linux_amd64",
    constraint_values = [
        "@platforms//os:linux",
        "@platforms//cpu:x86_64",
    ],
    visibility = ["//js/private/test/image:__subpackages__"],
)

platform(
    name = "linux_arm64",
    constraint_values = [
        "@platforms//os:linux",
        "@platforms//cpu:arm64",
    ],
    visibility = ["//js/private/test/image:__subpackages__"],
)

# All these golden files can be updated with
# bazel run //js/private/test/image:default_test_update_all
# bazel run //js/private/test/image:custom_owner_test_update_all

# Case 0: reproducibility guarantees
make_js_image_layer(
    name = "cksum",
    binary = ":bin",
    # gzip compression embeds os information into the archive which is not okay from reproducibility standpoint.
    # set it to none since uncompressed archive is always stable.
    # more: https://stackoverflow.com/questions/26516369/zlib-gzip-produces-different-results-for-same-input-on-different-oses
    compression = "none",
    platform = ":linux_amd64",
    # root = unset to use default
)

assert_checksum(
    name = "checksum_test",
    image_layer = ":cksum",
)

# Case 1: Defaults
# bazel run :default_test_update_all
make_js_image_layer(
    name = "default",
    binary = ":bin",
    platform = ":linux_amd64",
    root = "",  # blank
)

assert_js_image_layer_listings(
    name = "default_test",
    js_image_layer = ":default",
)

# Case 2: Change owner
# bazel run :custom_owner_test_update_all
make_js_image_layer(
    name = "custom_owner",
    binary = ":bin",
    owner = "100:0",
    platform = ":linux_amd64",
    root = "/",  # root /
)

assert_js_image_layer_listings(
    name = "custom_owner_test",
    js_image_layer = ":custom_owner",
)

# Case 3: Change owner
# bazel run :custom_owner_test_update_all
make_js_image_layer(
    name = "regex_edge_cases",
    binary = ":bin",
    layer_groups = {
        # Odd characters to insert into js string/regex/backtick expressions
        "odd_characters": "spaces quotes ' \" ` slashes / \\ | symbols \\{",
    },
    platform = ":linux_amd64",
    preserve_symlinks = "node_modules|/foobar/\"'",
    root = "./app",  # with './' prefix
)

assert_js_image_layer_listings(
    name = "regex_edge_cases_test",
    additional_layers = ["odd_characters"],
    js_image_layer = ":regex_edge_cases",
)

# Case 4: overwrite layer so some files have no matches
# bazel run :custom_owner_test_update_all
make_js_image_layer(
    name = "custom_layers_nomatch",
    binary = ":bin",
    layer_groups = {"app": "no app for you"},
    platform = ":linux_amd64",
    root = "/app",  # with /' prefix
)

assert_js_image_layer_listings(
    name = "custom_layers_nomatch_test",
    js_image_layer = ":custom_layers_nomatch",
)

# Case 5: transition the edge instead of just the binary
# bazel run :custom_owner_test_update_all
make_js_image_layer(
    name = "js_image_layer_untransitioned",
    binary = ":bin",
)

platform_transition_filegroup(
    name = "transition_js_image_layer_linux_amd64",
    testonly = True,
    srcs = [":js_image_layer_untransitioned"],
    target_platform = ":linux_amd64",
)

platform_transition_filegroup(
    name = "transition_js_image_layer_linux_arm64",
    testonly = True,
    srcs = [":js_image_layer_untransitioned"],
    target_platform = ":linux_arm64",
)