add test blob for internal smartctl timeout

this simply asserts that incomplete blobs (due to internal timeouts) are
correctly processed

autotests/fixtures/error-info-log-failed.json

+{
+  "json_format_version": [
+    1,
+    0
+  ],
+  "smartctl": {
+    "version": [
+      7,
+      1
+    ],
+    "svn_revision": "5022",
+    "platform_info": "x86_64-linux-5.9.3-1-MANJARO",
+    "build_info": "(local build)",
+    "argv": [
+      "smartctl",
+      "--all",
+      "--json",
+      "/dev/nvme0n1"
+    ],
+    "messages": [
+      {
+        "string": "Read Error Information Log failed: NVME_IOCTL_ADMIN_CMD: Appel système interrompu",
+        "severity": "error"
+      }
+    ],
+    "exit_status": 4
+  },
+  "device": {
+    "name": "/dev/nvme0n1",
+    "info_name": "/dev/nvme0n1",
+    "type": "nvme",
+    "protocol": "NVMe"
+  },
+  "model_name": "PC300 NVMe SK hynix 256GB",
+  "serial_number": "EJ77N46141180792O",
+  "firmware_version": "20005A00",
+  "nvme_pci_vendor": {
+    "id": 7260,
+    "subsystem_id": 7260
+  },
+  "nvme_ieee_oui_identifier": 11330606,
+  "nvme_controller_id": 0,
+  "nvme_number_of_namespaces": 1,
+  "nvme_namespaces": [
+    {
+      "id": 1,
+      "size": {
+        "blocks": 500118192,
+        "bytes": 256060514304
+      },
+      "capacity": {
+        "blocks": 500118192,
+        "bytes": 256060514304
+      },
+      "utilization": {
+        "blocks": 500118192,
+        "bytes": 256060514304
+      },
+      "formatted_lba_size": 512,
+      "eui64": {
+        "oui": 11330606,
+        "ext_id": 487747682236
+      }
+    }
+  ],
+  "user_capacity": {
+    "blocks": 500118192,
+    "bytes": 256060514304
+  },
+  "logical_block_size": 512,
+  "local_time": {
+    "time_t": 1605000494,
+    "asctime": "Tue Nov 10 10:28:14 2020 CET"
+  },
+  "smart_status": {
+    "passed": true,
+    "nvme": {
+      "value": 0
+    }
+  },
+  "nvme_smart_health_information_log": {
+    "critical_warning": 0,
+    "temperature": 30,
+    "available_spare": 100,
+    "available_spare_threshold": 10,
+    "percentage_used": 2,
+    "data_units_read": 5188835,
+    "data_units_written": 21146267,
+    "host_reads": 66725315,
+    "host_writes": 282306897,
+    "controller_busy_time": 1018,
+    "power_cycles": 1826,
+    "power_on_hours": 158,
+    "unsafe_shutdowns": 112,
+    "media_errors": 0,
+    "num_err_log_entries": 218352,
+    "warning_temp_time": 0,
+    "critical_comp_time": 0,
+    "temperature_sensors": [
+      30
+    ]
+  },
+  "temperature": {
+    "current": 30
+  },
+  "power_cycle_count": 1826,
+  "power_on_time": {
+    "hours": 158
+  }
+}

autotests/fixtures/error-info-log-failed.json.license

+SPDX-License-Identifier: CC0-1.0
+SPDX-FileCopyrightText: none

autotests/smartdatatest.cpp

@@ -47,6 +47,18 @@ private Q_SLOTS:
         QCOMPARE(data.m_device, "/dev/sdc");
         QCOMPARE(data.m_status.m_passed, false);
     }
+
+    void testTimeout()
+    {
+        // Query timed out but overall status is available and success.
+        // From https://bugs.kde.org/show_bug.cgi?id=428844
+        QFile file(QFINDTESTDATA("fixtures/error-info-log-failed.json"));
+        QVERIFY(file.open(QFile::ReadOnly));
+        auto doc = QJsonDocument::fromJson(file.readAll());
+        SMARTData data(doc);
+        QCOMPARE(data.m_device, "/dev/nvme0n1");
+        QCOMPARE(data.m_status.m_passed, true);
+    }
 };
 
 QTEST_MAIN(SMARTDataTest)