Report name

.vscode/launch.json

@@ -10,7 +10,7 @@
             "gevent": true
         },
         {
-            "name": "Run locust headless",
+            "name": "Run current locust scenario headless",
             "type": "python",
             "request": "launch",
             "module": "locust",
@@ -24,7 +24,7 @@
             "gevent": true
         },
         {
-            "name": "Run locust, autostart",
+            "name": "Run current locust scenario, autostart",
             "type": "python",
             "request": "launch",
             "module": "locust",

docs/developing-locust.rst

@@ -33,6 +33,8 @@ If you install `pre-commit <https://pre-commit.com/>`_, linting and format check
 
 Before you open a pull request, make sure all the tests work. And if you are adding a feature, make sure it is documented (in ``docs/*.rst``).
 
+If you're in a hurry or don't have access to a development environment, you can simply use `Codespaces <https://github.com/features/codespaces>`_, the github cloud development environment.  On your fork page, just click on *Code* then on *Create codespace on <branch name>*, and voila, your ready to code and test.
+
 Testing your changes
 ====================
 
@@ -51,6 +53,11 @@ To only run a specific suite or specific test you can call `pytest <https://docs
 
     $ pytest locust/test/test_main.py::DistributedIntegrationTests::test_distributed_tags
 
+Debugging
+=========
+
+See: :ref:`running-in-debugger`.
+
 Formatting and linting
 ======================
 

docs/running-in-debugger.rst

@@ -21,7 +21,17 @@ It implicitly registers an event handler for the :ref:`request <extending_locust
 
 You can configure exactly what is printed by specifying parameters to :py:func:`run_single_user <locust.debug.run_single_user>`.
 
-Make sure you have enabled gevent in your debugger settings. In VS Code's ``launch.json`` it looks like this:
+Make sure you have enabled gevent in your debugger settings. 
+
+Debugging Locust is quite easy with Vscode:
+
+- Place breakpoints
+- Select a python file or a scenario (ex: ```examples/basic.py``)
+- Check that the Poetry virtualenv is correctly detected (bottom right)
+- Open the action *Debug using launch.json*. You will have the choice between debugging the python file, the scenario with WebUI or in headless mode
+- It could be rerun with the F5 shortkey
+
+VS Code's ``launch.json`` looks like this:
 
 .. literalinclude:: ../.vscode/launch.json
     :language: json

locust/html.py

@@ -12,7 +12,7 @@
 from .runners import STATE_STOPPED, STATE_STOPPING, MasterRunner
 from .stats import sort_stats, update_stats_history
 from .user.inspectuser import get_ratio
-from .util.date import format_utc_timestamp
+from .util.date import format_duration, format_utc_timestamp
 
 PERCENTILES_FOR_HTML_REPORT = [0.50, 0.6, 0.7, 0.8, 0.9, 0.95, 0.99, 1.0]
 DEFAULT_BUILD_PATH = os.path.join(os.path.dirname(os.path.abspath(__file__)), "webui", "dist")
@@ -36,6 +36,7 @@ def get_html_report(
     if end_ts := stats.last_request_timestamp:
         end_time = format_utc_timestamp(end_ts)
     else:
+        end_ts = stats.start_time
         end_time = start_time
 
     host = None
@@ -88,6 +89,7 @@ def get_html_report(
             ],
             "start_time": start_time,
             "end_time": end_time,
+            "duration": format_duration(stats.start_time, end_ts),
             "host": escape(str(host)),
             "history": history,
             "show_download_link": show_download_link,

locust/test/test_date.py

@@ -0,0 +1,86 @@
+from locust.util.date import format_duration, format_safe_timestamp, format_utc_timestamp
+
+from datetime import datetime
+
+import pytest
+
+dates_checks = [
+    {
+        "datetime": datetime(2023, 10, 1, 12, 0, 0),
+        "utc_timestamp": "2023-10-01T10:00:00Z",
+        "safe_timestamp": "2023-10-01-12h00",
+        "duration": "0 seconds",
+    },
+    {
+        "datetime": datetime(2023, 10, 1, 12, 0, 30),
+        "utc_timestamp": "2023-10-01T10:00:30Z",
+        "safe_timestamp": "2023-10-01-12h00",
+        "duration": "30 seconds",
+    },
+    {
+        "datetime": datetime(2023, 10, 1, 12, 45, 0),
+        "utc_timestamp": "2023-10-01T10:45:00Z",
+        "safe_timestamp": "2023-10-01-12h45",
+        "duration": "45 minutes",
+    },
+    {
+        "datetime": datetime(2023, 10, 1, 15, 0, 0),
+        "utc_timestamp": "2023-10-01T13:00:00Z",
+        "safe_timestamp": "2023-10-01-15h00",
+        "duration": "3 hours",
+    },
+    {
+        "datetime": datetime(2023, 10, 4, 12, 0, 0),
+        "utc_timestamp": "2023-10-04T10:00:00Z",
+        "safe_timestamp": "2023-10-04-12h00",
+        "duration": "3 days",
+    },
+    {
+        "datetime": datetime(2023, 10, 3, 15, 45, 30),
+        "utc_timestamp": "2023-10-03T13:45:30Z",
+        "safe_timestamp": "2023-10-03-15h45",
+        "duration": "2 days, 3 hours, 45 minutes and 30 seconds",
+    },
+    {
+        "datetime": datetime(2023, 10, 2, 13, 1, 1),
+        "utc_timestamp": "2023-10-02T11:01:01Z",
+        "safe_timestamp": "2023-10-02-13h01",
+        "duration": "1 day, 1 hour, 1 minute and 1 second",
+    },
+    {
+        "datetime": datetime(2023, 10, 1, 15, 30, 45),
+        "utc_timestamp": "2023-10-01T13:30:45Z",
+        "safe_timestamp": "2023-10-01-15h30",
+        "duration": "3 hours, 30 minutes and 45 seconds",
+    },
+    {
+        "datetime": datetime(2023, 10, 2, 12, 30, 45),
+        "utc_timestamp": "2023-10-02T10:30:45Z",
+        "safe_timestamp": "2023-10-02-12h30",
+        "duration": "1 day, 30 minutes and 45 seconds",
+    },
+    {
+        "datetime": datetime(2023, 10, 2, 12, 0, 45),
+        "utc_timestamp": "2023-10-02T10:00:45Z",
+        "safe_timestamp": "2023-10-02-12h00",
+        "duration": "1 day and 45 seconds",
+    },
+]
+
+
+@pytest.mark.parametrize("check", dates_checks)
+def test_format_utc_timestamp(check):
+    assert format_utc_timestamp(check["datetime"].timestamp()) == check["utc_timestamp"]
+
+
+@pytest.mark.parametrize("check", dates_checks)
+def test_format_safe_timestamp(check):
+    assert format_safe_timestamp(check["datetime"].timestamp()) == check["safe_timestamp"]
+
+
+@pytest.mark.parametrize("check", dates_checks)
+def test_format_duration(check):
+    global dates_checks
+    start_time = dates_checks[0]["datetime"].timestamp()
+    end_time = check["datetime"].timestamp()
+    assert format_duration(start_time, end_time) == check["duration"]

locust/test/test_main.py

@@ -1181,6 +1181,9 @@ def test_html_report_option(self):
         # make sure host appears in the report
         self.assertIn("https://test.com/", html_report_content)
         self.assertIn('"show_download_link": false', html_report_content)
+        self.assertRegex(html_report_content, r'"start_time": "\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}Z"')
+        self.assertRegex(html_report_content, r'"end_time": "\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}Z"')
+        self.assertRegex(html_report_content, r'"duration": "\d* seconds?"')
 
     def test_run_with_userclass_picker(self):
         with temporary_file(content=MOCK_LOCUSTFILE_CONTENT_A) as file1:

locust/util/date.py

@@ -2,4 +2,22 @@
 
 
 def format_utc_timestamp(unix_timestamp):
-    return datetime.fromtimestamp(unix_timestamp, timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ")
+    return datetime.fromtimestamp(int(unix_timestamp), timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ")
+
+
+def format_safe_timestamp(unix_timestamp):
+    return datetime.fromtimestamp(int(unix_timestamp)).strftime("%Y-%m-%d-%Hh%M")
+
+
+def format_duration(start_time, end_time):
+    seconds = int(end_time) - int(start_time)
+    days = seconds // 86400
+    hours = (seconds % 86400) // 3600
+    minutes = (seconds % 3600) // 60
+    seconds = seconds % 60
+
+    time_parts = [(days, "day"), (hours, "hour"), (minutes, "minute"), (seconds, "second")]
+
+    parts = [f"{value} {label}{'s' if value != 1 else ''}" for value, label in time_parts if value > 0]
+
+    return " and ".join(filter(None, [", ".join(parts[:-1])] + parts[-1:])) if parts else "0 seconds"

locust/web.py

@@ -40,7 +40,7 @@
 from .stats import StatsCSV, StatsCSVFileWriter, StatsErrorDict, sort_stats
 from .user.inspectuser import get_ratio
 from .util.cache import memoize
-from .util.date import format_utc_timestamp
+from .util.date import format_safe_timestamp
 from .util.timespan import parse_timespan
 
 if TYPE_CHECKING:
@@ -347,17 +347,25 @@ def stats_report() -> Response:
             )
             if request.args.get("download"):
                 res = app.make_response(res)
-                res.headers["Content-Disposition"] = f"attachment;filename=report_{time()}.html"
+                host = f"_{self.environment.host}" if self.environment.host else ""
+                res.headers["Content-Disposition"] = (
+                    f"attachment;filename=Locust_{format_safe_timestamp(self.environment.stats.start_time)}_"
+                    + f"{self.environment.locustfile}{host}.html"
+                )
             return res
 
         def _download_csv_suggest_file_name(suggest_filename_prefix: str) -> str:
             """Generate csv file download attachment filename suggestion.
 
             Arguments:
-            suggest_filename_prefix: Prefix of the filename to suggest for saving the download. Will be appended with timestamp.
+            suggest_filename_prefix: Prefix of the filename to suggest for saving the download.
+            Will be appended with timestamp.
             """
-
-            return f"{suggest_filename_prefix}_{time()}.csv"
+            host = f"_{self.environment.host}" if self.environment.host else ""
+            return (
+                f"Locust_{format_safe_timestamp(self.environment.stats.start_time)}_"
+                + f"{self.environment.locustfile}{host}_{suggest_filename_prefix}.csv"
+            )
 
         def _download_csv_response(csv_data: str, filename_prefix: str) -> Response:
             """Generate csv file download response with 'csv_data'.

locust/webui/src/pages/HtmlReport.tsx

@@ -42,6 +42,7 @@ export default function HtmlReport({
   showDownloadLink,
   startTime,
   endTime,
+  duration,
   charts,
   host,
   exceptionsStatistics,
@@ -75,7 +76,7 @@ export default function HtmlReport({
             <Box sx={{ display: 'flex', columnGap: 0.5 }}>
               <Typography fontWeight={600}>During:</Typography>
               <Typography>
-                {formatLocaleString(startTime)} - {formatLocaleString(endTime)}
+                {formatLocaleString(startTime)} - {formatLocaleString(endTime)} ({duration})
               </Typography>
             </Box>
 

locust/webui/src/pages/tests/HtmlReport.test.tsx

@@ -26,7 +26,7 @@ describe('HtmlReport', () => {
       getByText(
         `${formatLocaleString(swarmReportMock.startTime)} - ${formatLocaleString(
           swarmReportMock.endTime,
-        )}`,
+        )} (${swarmReportMock.duration})`,
       ),
     ).toBeTruthy();
   });

locust/webui/src/test/mocks/swarmState.mock.ts

@@ -35,7 +35,8 @@ export const swarmReportMock: IReport = {
   locustfile: 'locustfile.py',
   showDownloadLink: true,
   startTime: '2024-02-26 12:13:26',
-  endTime: '2024-02-26 12:13:26',
+  endTime: '2024-02-26 13:27:14',
+  duration: '1 hour, 13 minutes and 48 seconds',
   host: 'http://0.0.0.0:8089/',
   exceptionsStatistics: [],
   requestsStatistics: [],

locust/webui/src/types/swarm.types.ts

@@ -71,6 +71,7 @@ export interface IReport {
   showDownloadLink: boolean;
   startTime: string;
   endTime: string;
+  duration: string;
   host: string;
   charts: ICharts;
   requestsStatistics: ISwarmStat[];