| // Copyright 2020 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. |
| package com.google.devtools.build.lib.packages; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| |
| import com.google.common.hash.HashCode; |
| import com.google.devtools.build.lib.cmdline.Label; |
| import com.google.devtools.build.lib.util.Fingerprint; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Unit tests for {@link AdvertisedProviderSet}. */ |
| @RunWith(JUnit4.class) |
| public class AdvertisedProviderSetTest { |
| @Test |
| public void fingerprintsMatchExactly() { |
| // Demonstrates that fingerprints of some choice AdvertisedProviderSet instances are exactly we |
| // expect them to be. |
| // |
| // If this test fails because the implementation of AdvertisedProviderSet#fingerprint has been |
| // intentionally changed in a manner compatible with the properties listed in that method's |
| // javadoc, then simply update the expectations here. |
| |
| assertThat(getFingerprint(AdvertisedProviderSet.ANY)) |
| .isEqualTo( |
| HashCode.fromString( |
| "4bf5122f344554c53bde2ebb8cd2b7e3d1600ad631c385a5d7cce23c7785459a")); |
| assertThat(getFingerprint(AdvertisedProviderSet.EMPTY)) |
| .isEqualTo( |
| HashCode.fromString( |
| "6e340b9cffb37a989ca544e6bb780a2c78901d3fb33738768511a30617afa01d")); |
| assertThat(getFingerprint(AdvertisedProviderSet.builder().addBuiltin(String.class).build())) |
| .isEqualTo( |
| HashCode.fromString( |
| "d93c0c71b65c3af6dd7fb823680bb768ede3857abb3046ebb4762f5a3e8793dc")); |
| assertThat(getFingerprint(AdvertisedProviderSet.builder().addBuiltin(Integer.class).build())) |
| .isEqualTo( |
| HashCode.fromString( |
| "979d311543b348225618bd436c874e24cfe4b7a35c891cbfaf89ce69885981b4")); |
| assertThat( |
| getFingerprint( |
| AdvertisedProviderSet.builder() |
| .addStarlark(StarlarkProviderIdentifier.forLegacy("legacyProvider1")) |
| .build())) |
| .isEqualTo( |
| HashCode.fromString( |
| "332f6fc411cfe63c5aaf1ed0fb06f979b6ce947239aede9b6e61649f9c543747")); |
| assertThat( |
| getFingerprint( |
| AdvertisedProviderSet.builder() |
| .addStarlark(StarlarkProviderIdentifier.forLegacy("legacyProvider2")) |
| .build())) |
| .isEqualTo( |
| HashCode.fromString( |
| "ba2f3a9271b4398d8c6bd8ae846446f13b6549be9d3fbce985358b709b343f80")); |
| assertThat( |
| getFingerprint( |
| AdvertisedProviderSet.builder() |
| .addStarlark( |
| StarlarkProviderIdentifier.forKey( |
| new StarlarkProvider.Key( |
| Label.parseAbsoluteUnchecked("//my:label1.bzl"), "exportedName1"))) |
| .build())) |
| .isEqualTo( |
| HashCode.fromString( |
| "a17a99d19f39ae61e927da9169d42274b7121fa0fbc79bbb85cce7b199576a42")); |
| assertThat( |
| getFingerprint( |
| AdvertisedProviderSet.builder() |
| .addStarlark( |
| StarlarkProviderIdentifier.forKey( |
| new StarlarkProvider.Key( |
| Label.parseAbsoluteUnchecked("//my:label1.bzl"), "exportedName1"))) |
| .addStarlark( |
| StarlarkProviderIdentifier.forKey( |
| new StarlarkProvider.Key( |
| Label.parseAbsoluteUnchecked("//my:label2.bzl"), "exportedName2"))) |
| .build())) |
| .isEqualTo( |
| HashCode.fromString( |
| "2909013264231d50a3550d41e2eaf0fbd501bfffacf6303019cc8a93e187bf68")); |
| assertThat( |
| getFingerprint( |
| AdvertisedProviderSet.builder() |
| .addStarlark( |
| StarlarkProviderIdentifier.forKey( |
| new StarlarkProvider.Key( |
| Label.parseAbsoluteUnchecked("//my:label2.bzl"), "exportedName2"))) |
| .build())) |
| .isEqualTo( |
| HashCode.fromString( |
| "4d5efc81e801feaeef6b5549d2c4b9d943ae673c76456f85631dc61cae698e4c")); |
| } |
| |
| private static HashCode getFingerprint(AdvertisedProviderSet advertisedProviderSet) { |
| Fingerprint fp = new Fingerprint(); |
| advertisedProviderSet.fingerprint(fp); |
| return HashCode.fromBytes(fp.digestAndReset()); |
| } |
| } |