Add functionality to prune old crash reports from the database.

client/crash_report_database_test.cc

 // Copyright 2015 The Crashpad 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,
@@ skipping 495 matching lines @@
   EXPECT_EQ(0, _wunlink(report.file_path.value().c_str()));
 #else
   EXPECT_EQ(0, unlink(report.file_path.value().c_str()))
       << ErrnoMessage("unlink");
 #endif
 
   EXPECT_EQ(CrashReportDatabase::kReportNotFound,
             db()->LookUpCrashReport(uuid, &report));
 }
 
+TEST_F(CrashReportDatabaseTest, DeleteReport) {
+  CrashReportDatabase::Report keep_pending;
+  CrashReportDatabase::Report delete_pending;
+  CrashReportDatabase::Report keep_completed;
+  CrashReportDatabase::Report delete_completed;
+
+  CreateCrashReport(&keep_pending);
+  CreateCrashReport(&delete_pending);
+  CreateCrashReport(&keep_completed);
+  CreateCrashReport(&delete_completed);
+
+  EXPECT_TRUE(FileExists(keep_pending.file_path));
+  EXPECT_TRUE(FileExists(delete_pending.file_path));
+  EXPECT_TRUE(FileExists(keep_completed.file_path));
+  EXPECT_TRUE(FileExists(delete_completed.file_path));
+
+  UploadReport(keep_completed.uuid, true, "1");
+  UploadReport(delete_completed.uuid, true, "2");
+
+  EXPECT_EQ(CrashReportDatabase::kNoError,
+            db()->LookUpCrashReport(keep_completed.uuid, &keep_completed));
+  EXPECT_EQ(CrashReportDatabase::kNoError,
+            db()->LookUpCrashReport(delete_completed.uuid, &delete_completed));
+
+  EXPECT_TRUE(FileExists(keep_completed.file_path));
+  EXPECT_TRUE(FileExists(delete_completed.file_path));
+
+  EXPECT_EQ(CrashReportDatabase::kNoError,
+            db()->DeleteReport(delete_pending.uuid));
+  EXPECT_FALSE(FileExists(delete_pending.file_path));
+  EXPECT_EQ(CrashReportDatabase::kReportNotFound,
+            db()->LookUpCrashReport(delete_pending.uuid, &delete_pending));
+  EXPECT_EQ(CrashReportDatabase::kReportNotFound,
+            db()->DeleteReport(delete_pending.uuid));
+
+  EXPECT_EQ(CrashReportDatabase::kNoError,
+            db()->DeleteReport(delete_completed.uuid));
+  EXPECT_FALSE(FileExists(delete_completed.file_path));
+  EXPECT_EQ(CrashReportDatabase::kReportNotFound,
+            db()->LookUpCrashReport(delete_completed.uuid, &delete_completed));
+  EXPECT_EQ(CrashReportDatabase::kReportNotFound,
+            db()->DeleteReport(delete_completed.uuid));
+
+  EXPECT_EQ(CrashReportDatabase::kNoError,
+            db()->LookUpCrashReport(keep_pending.uuid, &keep_pending));
+  EXPECT_EQ(CrashReportDatabase::kNoError,
+            db()->LookUpCrashReport(keep_completed.uuid, &keep_completed));
+}
+
 }  // namespace
 }  // namespace test
 }  // namespace crashpad