# Copyright 2022 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("//build/components.gni")
import("//build/rust/rustc_library.gni")
import("//src/virtualization/lib/qcow/qcow_test_image.gni")

group("tests") {
  testonly = true
  deps = [ ":qcow_unittests" ]
}

rustc_library("qcow") {
  edition = "2021"
  with_unit_tests = true

  sources = [
    "src/lib.rs",
    "src/wire.rs",
  ]

  deps = [
    "//third_party/rust_crates:anyhow",
    "//third_party/rust_crates:zerocopy",
  ]
}

# A completely empty image.
qcow_test_image("empty_1gb") {
  disk_size = "1G"
}

# A disk image with data written to multiple locations in the file.
qcow_test_image("sparse") {
  disk_size = "1G"
  writes = [
    # First and third 1k bytes are populated (but not bytes 1025->2048).
    "0+1k=0xaa",
    "2k+1k=0xab",

    # Last 1024 bytes
    "1048575k+1k=0xbb",

    # Something in the middle
    "512M+1k=0xcc",
  ]
}

group("test_images") {
  deps = [
    ":empty_1gb",
    ":sparse",
  ]
}

fuchsia_unittest_package("qcow_unittests") {
  deps = [
    ":qcow_test",
    ":test_images",
  ]
}