| // Copyright (C) 2017 The Android Open Source Project |
| // |
| // 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.googlesource.gerrit.plugins.analytics.test |
| |
| import com.google.common.collect.Sets.newHashSet |
| import com.googlesource.gerrit.plugins.analytics.CommitInfo |
| import com.googlesource.gerrit.plugins.analytics.common.{CommitsStatistics, Statistics} |
| import org.eclipse.jgit.internal.storage.file.FileRepository |
| import org.scalatest.{FlatSpec, Inside, Matchers} |
| |
| class CommitStatisticsSpec extends FlatSpec with GitTestCase with Matchers with Inside { |
| |
| |
| class TestEnvironment { |
| val repo = new FileRepository(testRepo) |
| val stats = new Statistics(repo, TestBotLikeExtractor) |
| } |
| |
| "CommitStatistics" should "stats a single file added" in new TestEnvironment { |
| val change = commit("user", "file1.txt", "line1\nline2") |
| |
| inside(stats.forCommits(change)) { case List(s: CommitsStatistics) => |
| s.numFiles should be(1) |
| s.addedLines should be(2) |
| s.deletedLines should be(0) |
| } |
| } |
| |
| it should "sum to another compatible CommitStatistics generating an aggregated stat" in { |
| val commit1 = CommitInfo("sha_1", 1000l, false, botLike = false, newHashSet("file1")) |
| val commit2 = CommitInfo("sha_2", 2000l, false, botLike = false, newHashSet("file1")) |
| val commit3 = CommitInfo("sha_3", 3000l, false, botLike = false, newHashSet("file2")) |
| val commit4 = CommitInfo("sha_4", 1000l, false, botLike = false, newHashSet("file1")) |
| |
| val stat1 = CommitsStatistics(3, 4, false, false, List(commit1, commit2)) |
| val stat2 = CommitsStatistics(5, 7, false, false, List(commit3, commit4)) |
| |
| (stat1 + stat2) shouldBe CommitsStatistics(8, 11, false, false, List(commit1, commit2, commit3, commit4)) |
| } |
| |
| it should "fail if trying to be added to a CommitStatistics object for a different isMerge value" in { |
| an [IllegalArgumentException] should be thrownBy (CommitsStatistics.EmptyMerge + CommitsStatistics.EmptyNonMerge) |
| } |
| |
| it should "stats multiple files added" in new TestEnvironment { |
| val initial = commit("user", "file1.txt", "line1\nline2\n") |
| val second = add(testRepo, |
| List( |
| "file1.txt" -> "line1\n", |
| "file2.txt" -> "line1\nline2\n" |
| ), "second commit") |
| |
| inside(stats.forCommits(second)) { case List(s: CommitsStatistics) => |
| s.numFiles should be(2) |
| s.addedLines should be(2) |
| s.deletedLines should be(1) |
| } |
| } |
| |
| it should "stats lines eliminated" in new TestEnvironment { |
| val initial = commit("user", "file1.txt", "line1\nline2\nline3") |
| val second = commit("user", "file1.txt", "line1\n") |
| inside(stats.forCommits(second)) { case List(s: CommitsStatistics) => |
| s.numFiles should be(1) |
| s.addedLines should be(0) |
| s.deletedLines should be(2) |
| } |
| } |
| |
| it should "stats a Seq[RevCommit]" in new TestEnvironment { |
| val initial = add(testRepo, |
| List( |
| "file1.txt" -> "line1\n", |
| "file3.txt" -> "line1\nline2\n"), |
| "first commit") |
| |
| val second = add(testRepo, |
| List( |
| "file1.txt" -> "line1a\n", |
| "file2.txt" -> "line1\nline2\n"), |
| "second commit") |
| |
| inside(stats.forCommits(initial, second)) { case List(nonMergeStats: CommitsStatistics) => |
| nonMergeStats.numFiles should be(4) |
| nonMergeStats.numDistinctFiles should be(3) |
| nonMergeStats.addedLines should be(6) |
| nonMergeStats.deletedLines should be(1) |
| } |
| } |
| |
| it should "return zero value stats if the commit does not include any file" in new TestEnvironment { |
| val emptyCommit = add(testRepo, List.empty, "Empty commit") |
| inside(stats.forCommits(emptyCommit)) { case List(stats) => |
| stats.numFiles should be(0) |
| stats.addedLines should be(0) |
| stats.deletedLines should be(0) |
| } |
| } |
| |
| it should "split merge commits and non-merge commits" in new TestEnvironment { |
| val firstNonMerge = commit("user", "file1.txt", "line1\nline2\n") |
| val merge = mergeCommit("user", "file1.txt", "line1\nline2\nline3") |
| val nonMerge = add(testRepo, |
| List( |
| "file1.txt" -> "line1\n", |
| "file2.txt" -> "line1\nline2\n"), |
| "second commit") |
| |
| inside(stats.forCommits(firstNonMerge, merge.getNewHead, nonMerge)) { |
| case List(nonMergeStats, mergeStats) => |
| mergeStats.numFiles should be(1) |
| mergeStats.addedLines should be(1) |
| mergeStats.deletedLines should be(0) |
| |
| nonMergeStats.numFiles should be(3) |
| nonMergeStats.addedLines should be(4) |
| nonMergeStats.deletedLines should be(2) |
| |
| case wrongContent => fail(s"Expected two results instead got $wrongContent") |
| } |
| } |
| |
| } |