ci: expand Rust SDK harness codec and blocking flags coverage

[dustinbyrne]

💡 Motivation and Context

Expand recurring Rust SDK wire coverage to harness 1.0.0, including V0/V1 non-UTC timestamp cases and the supported V1 deflate, Brotli and zstd profiles alongside gzip.

• Add a flags-only profile using the existing blocking client, including its retries, returned values and SDK-generated called events.
• Keep separate report artifacts/comments for each runtime and codec; align local Compose coverage with CI.
• No SDK public API, shipped defaults or release changes. Compliance remains advisory.

Non-gzip codec assertions are header-only: harness 1.0.0 does not decode those bodies. Existing adapter UUID/version/state and flush-completion limitations are documented; passing wire tests do not establish full adapter-interface compliance.

💚 How did you test it?

Against the pinned harness 1.0.0 locally, using the in-tree SDK:

Profile	Passed / selected
Async V0 gzip	47 / 47
Async V1 gzip	112 / 112
Async V1 deflate / br / zstd	111 / 111 each
Blocking flags	17 / 17

All 509 invocations passed. Adapter tests and clippy passed in the default, V1 and blocking builds; formatting and Compose configuration checks passed. Local Docker execution was unavailable; the workflows will validate the container builds.

📝 Checklist

• I reviewed the submitted code.
• I added tests to verify the changes.
• I updated the docs if needed.
• No breaking change or entry added to the changelog.

[github-actions]

posthog-rs-v0-blocking-encoding_gzip Compliance Report

Date: 2026-09-07T20:17:37.177149+00:00
Duration: 676ms

✅ All Tests Passed!

17/17 tests passed

---

Feature_Flags Tests

✅ 17/17 tests passed

View Details

Test	Status	Duration
Request Payload.Request With Person Properties Device Id	✅	118ms
Request Payload.Flags Request Uses V2 Query Param	✅	106ms
Request Payload.Flags Request Hits Flags Path Not Decide	✅	106ms
Request Payload.Flags Request Omits Authorization Header	✅	117ms
Request Payload.Token In Flags Body Matches Init	✅	110ms
Request Payload.Groups Round Trip	✅	115ms
Request Payload.Groups Default To Empty Object	✅	118ms
Request Payload.Disable Geoip False Propagates As Geoip Disable False	✅	118ms
Request Payload.Disable Geoip Omitted Defaults To False	✅	117ms
Request Payload.Flag Keys To Evaluate Contains Only Requested Key	✅	116ms
Request Lifecycle.No Flags Request On Init Alone	✅	25ms
Request Lifecycle.No Flags Request On Normal Capture	✅	91ms
Request Lifecycle.Two Flag Calls Produce Two Remote Requests	✅	87ms
Request Lifecycle.Mock Response Value Is Returned To Caller	✅	75ms
Retry Behavior.Retries Flags On 502	✅	276ms
Retry Behavior.Retries Flags On 504	✅	276ms
Side Effect Events.Get Feature Flag Captures Feature Flag Called Event	✅	80ms

[github-actions]

posthog-rs-v1-async-encoding_zstd Compliance Report

Date: 2026-09-07T20:17:52.278819+00:00
Duration: 22759ms

✅ All Tests Passed!

111/111 tests passed

---

Capture_V1 Tests

✅ 94/94 tests passed

View Details

Test	Status	Duration
Endpoint And Method.Targets V1 Endpoint	✅	115ms
Endpoint And Method.Does Not Use Legacy Endpoints	✅	112ms
Required Headers.Has Authorization Bearer Header	✅	113ms
Required Headers.Has Content Type Json	✅	113ms
Required Headers.Has Posthog Sdk Info Format	✅	112ms
Required Headers.Has Posthog Attempt Header	✅	113ms
Required Headers.Has Posthog Request Id	✅	113ms
Required Headers.Has Posthog Request Timestamp	✅	113ms
Required Headers.Has User Agent	✅	112ms
Body Format.Body Has Created At And Batch	✅	114ms
Body Format.No Api Key In Body	✅	100ms
Body Format.No Sent At In Body	✅	101ms
Event Format.Event Has Required Root Fields	✅	100ms
Event Format.Event Uuid Is Valid	✅	102ms
Event Format.Event Timestamp Is Rfc3339	✅	100ms
Event Format.Non Utc Event Timestamp Is Converted To Utc	✅	99ms
Event Format.Distinct Id Is String	✅	100ms
Event Format.Distinct Id At Root Not Properties	✅	102ms
Event Format.Custom Properties Preserved	✅	101ms
Event Format.Set Properties Preserved	✅	99ms
Event Format.Set Once Properties Preserved	✅	97ms
Event Format.Groups Properties Preserved	✅	97ms
Event Format.Sdk Generates Uuid If Not Provided	✅	98ms
Event Format.Event Has Required Root Fields Batch	✅	113ms
Event Format.Event Uuid Is Valid Batch	✅	112ms
Event Format.Event Timestamp Is Rfc3339 Batch	✅	112ms
Event Format.Distinct Id Is String Batch	✅	137ms
Event Format.Distinct Id At Root Not Properties Batch	✅	137ms
Event Format.Custom Properties Preserved Batch	✅	137ms
Event Format.Set Properties Preserved Batch	✅	118ms
Event Format.Set Once Properties Preserved Batch	✅	106ms
Event Format.Groups Properties Preserved Batch	✅	114ms
Event Format.Sdk Generates Uuid If Not Provided Batch	✅	106ms
Batch Behavior.Multiple Events In Single Batch	✅	165ms
Batch Behavior.Batch Envelope Smoke	✅	148ms
Batch Behavior.Flush With No Events Sends Nothing	✅	81ms
Batch Behavior.Flush At Triggers Batch	✅	1085ms
Batch Behavior.Created At Reflects Batch Creation Time	✅	71ms
Deduplication.Generates Unique Uuids	✅	141ms
Deduplication.Different Events Same Content Different Uuids	✅	93ms
Deduplication.Preserves Uuid On Retry	✅	5069ms
Deduplication.Preserves Timestamp On Retry	✅	5065ms
Deduplication.Preserves Uuid And Timestamp On Batch Retry	✅	5090ms
Deduplication.No Duplicate Events In Batch	✅	115ms
Header Behavior On Retry.Attempt Header Starts At One	✅	67ms
Header Behavior On Retry.Attempt Header Increments On Retry	✅	10061ms
Header Behavior On Retry.Request Id Preserved On Retry	✅	5067ms
Header Behavior On Retry.Different Requests Have Different Request Ids	✅	2060ms
Header Behavior On Retry.Request Timestamp Changes On Retry	✅	5055ms
Response Format Validation.Success Response Has Uuid Keyed Results	✅	48ms
Response Format Validation.Success Response Has Ok For Each Event	✅	29ms
Response Format Validation.Success No Retry After When All Ok	✅	31ms
Response Format Validation.Success Retry After Present When Retry Events	✅	24ms
Response Format Validation.Success No Retry After When Drop Only	✅	25ms
Response Format Validation.Response Echoes Request Id	✅	21ms
Retry Behavior.Retries On 408	✅	5026ms
Retry Behavior.Retries On 500	✅	5020ms
Retry Behavior.Retries On 503	✅	5021ms
Retry Behavior.Retries On 504	✅	5020ms
Retry Behavior.Retryable Errors Have Retry After	✅	2023ms
Retry Behavior.Respects Retry After On Retryable Error	✅	8030ms
Retry Behavior.Does Not Retry On 400	✅	2019ms
Retry Behavior.Does Not Retry On 401	✅	2023ms
Retry Behavior.Does Not Retry On 402	✅	2024ms
Retry Behavior.Does Not Retry On 413	✅	2022ms
Retry Behavior.Does Not Retry On 415	✅	2020ms
Retry Behavior.Non Retryable Errors Have No Retry After	✅	2021ms
Retry Behavior.Implements Backoff	✅	15027ms
Retry Behavior.Max Retries Respected	✅	15019ms
Partial Batch Handling.Handles 200 Full Success	✅	2031ms
Partial Batch Handling.Handles 200 With All Ok	✅	3030ms
Partial Batch Handling.Does Not Retry Dropped Events	✅	3030ms
Partial Batch Handling.Does Not Retry Limited Events	✅	3025ms
Partial Batch Handling.Prunes Ok Events On Partial Retry	✅	5025ms
Partial Batch Handling.Prunes Dropped Events On Partial Retry	✅	5020ms
Partial Batch Handling.Retries Only Retry Events From Partial	✅	5021ms
Partial Batch Handling.Partial Retry Preserves Uuids	✅	5021ms
Partial Batch Handling.Partial Retry Attempt Header Increments	✅	5025ms
Partial Batch Handling.Partial Retry Request Id Preserved	✅	5028ms
Partial Batch Handling.Respects Retry After On Partial	✅	5019ms
Partial Batch Handling.Unknown Result Treated As Terminal	✅	3020ms
Partial Batch Handling.Mixed Ok Drop Limited No Retry	✅	3021ms
Compression.Sends Zstd Content Encoding	✅	18ms
Compression.No Content Encoding When Disabled	✅	17ms
Error Handling.Does Not Retry On Unknown 4Xx	✅	2019ms
Event Options.Cookieless Mode Override	✅	19ms
Event Options.Disable Skew Correction Override	✅	18ms
Event Options.Process Person Profile Override	✅	17ms
Event Options.Product Tour Id Override	✅	18ms
Event Options.Unset Options Omitted	✅	17ms
Event Options.Options Override In Batch	✅	18ms
Geoip And Historical Migration.Geoip Disable Injected Into Properties	✅	18ms
Geoip And Historical Migration.Historical Migration Set In Body	✅	17ms
Geoip And Historical Migration.Historical Migration Absent By Default	✅	18ms

Feature_Flags Tests

✅ 17/17 tests passed

View Details

Test	Status	Duration
Request Payload.Request With Person Properties Device Id	✅	11ms
Request Payload.Flags Request Uses V2 Query Param	✅	12ms
Request Payload.Flags Request Hits Flags Path Not Decide	✅	13ms
Request Payload.Flags Request Omits Authorization Header	✅	11ms
Request Payload.Token In Flags Body Matches Init	✅	11ms
Request Payload.Groups Round Trip	✅	11ms
Request Payload.Groups Default To Empty Object	✅	11ms
Request Payload.Disable Geoip False Propagates As Geoip Disable False	✅	12ms
Request Payload.Disable Geoip Omitted Defaults To False	✅	11ms
Request Payload.Flag Keys To Evaluate Contains Only Requested Key	✅	12ms
Request Lifecycle.No Flags Request On Init Alone	✅	10ms
Request Lifecycle.No Flags Request On Normal Capture	✅	18ms
Request Lifecycle.Two Flag Calls Produce Two Remote Requests	✅	13ms
Request Lifecycle.Mock Response Value Is Returned To Caller	✅	11ms
Retry Behavior.Retries Flags On 502	✅	215ms
Retry Behavior.Retries Flags On 504	✅	215ms
Side Effect Events.Get Feature Flag Captures Feature Flag Called Event	✅	19ms

[github-actions]

posthog-rs-v1-async-encoding_gzip Compliance Report

Date: 2026-09-07T20:17:56.833211+00:00
Duration: 22998ms

✅ All Tests Passed!

112/112 tests passed

---

Capture_V1 Tests

✅ 95/95 tests passed

View Details

Test	Status	Duration
Endpoint And Method.Targets V1 Endpoint	✅	139ms
Endpoint And Method.Does Not Use Legacy Endpoints	✅	140ms
Required Headers.Has Authorization Bearer Header	✅	138ms
Required Headers.Has Content Type Json	✅	138ms
Required Headers.Has Posthog Sdk Info Format	✅	137ms
Required Headers.Has Posthog Attempt Header	✅	137ms
Required Headers.Has Posthog Request Id	✅	137ms
Required Headers.Has Posthog Request Timestamp	✅	138ms
Required Headers.Has User Agent	✅	136ms
Body Format.Body Has Created At And Batch	✅	142ms
Body Format.No Api Key In Body	✅	139ms
Body Format.No Sent At In Body	✅	138ms
Event Format.Event Has Required Root Fields	✅	136ms
Event Format.Event Uuid Is Valid	✅	138ms
Event Format.Event Timestamp Is Rfc3339	✅	139ms
Event Format.Non Utc Event Timestamp Is Converted To Utc	✅	138ms
Event Format.Distinct Id Is String	✅	139ms
Event Format.Distinct Id At Root Not Properties	✅	138ms
Event Format.Custom Properties Preserved	✅	138ms
Event Format.Set Properties Preserved	✅	134ms
Event Format.Set Once Properties Preserved	✅	132ms
Event Format.Groups Properties Preserved	✅	133ms
Event Format.Sdk Generates Uuid If Not Provided	✅	135ms
Event Format.Event Has Required Root Fields Batch	✅	172ms
Event Format.Event Uuid Is Valid Batch	✅	161ms
Event Format.Event Timestamp Is Rfc3339 Batch	✅	172ms
Event Format.Distinct Id Is String Batch	✅	177ms
Event Format.Distinct Id At Root Not Properties Batch	✅	172ms
Event Format.Custom Properties Preserved Batch	✅	172ms
Event Format.Set Properties Preserved Batch	✅	175ms
Event Format.Set Once Properties Preserved Batch	✅	137ms
Event Format.Groups Properties Preserved Batch	✅	157ms
Event Format.Sdk Generates Uuid If Not Provided Batch	✅	152ms
Batch Behavior.Multiple Events In Single Batch	✅	206ms
Batch Behavior.Batch Envelope Smoke	✅	158ms
Batch Behavior.Flush With No Events Sends Nothing	✅	94ms
Batch Behavior.Flush At Triggers Batch	✅	1118ms
Batch Behavior.Created At Reflects Batch Creation Time	✅	106ms
Deduplication.Generates Unique Uuids	✅	191ms
Deduplication.Different Events Same Content Different Uuids	✅	112ms
Deduplication.Preserves Uuid On Retry	✅	5075ms
Deduplication.Preserves Timestamp On Retry	✅	5075ms
Deduplication.Preserves Uuid And Timestamp On Batch Retry	✅	5107ms
Deduplication.No Duplicate Events In Batch	✅	140ms
Header Behavior On Retry.Attempt Header Starts At One	✅	80ms
Header Behavior On Retry.Attempt Header Increments On Retry	✅	10097ms
Header Behavior On Retry.Request Id Preserved On Retry	✅	5090ms
Header Behavior On Retry.Different Requests Have Different Request Ids	✅	2063ms
Header Behavior On Retry.Request Timestamp Changes On Retry	✅	5065ms
Response Format Validation.Success Response Has Uuid Keyed Results	✅	57ms
Response Format Validation.Success Response Has Ok For Each Event	✅	34ms
Response Format Validation.Success No Retry After When All Ok	✅	36ms
Response Format Validation.Success Retry After Present When Retry Events	✅	31ms
Response Format Validation.Success No Retry After When Drop Only	✅	34ms
Response Format Validation.Response Echoes Request Id	✅	28ms
Retry Behavior.Retries On 408	✅	5040ms
Retry Behavior.Retries On 500	✅	5026ms
Retry Behavior.Retries On 503	✅	5026ms
Retry Behavior.Retries On 504	✅	5026ms
Retry Behavior.Retryable Errors Have Retry After	✅	2040ms
Retry Behavior.Respects Retry After On Retryable Error	✅	8029ms
Retry Behavior.Does Not Retry On 400	✅	2025ms
Retry Behavior.Does Not Retry On 401	✅	2027ms
Retry Behavior.Does Not Retry On 402	✅	2028ms
Retry Behavior.Does Not Retry On 413	✅	2032ms
Retry Behavior.Does Not Retry On 415	✅	2035ms
Retry Behavior.Non Retryable Errors Have No Retry After	✅	2027ms
Retry Behavior.Implements Backoff	✅	15031ms
Retry Behavior.Max Retries Respected	✅	15024ms
Partial Batch Handling.Handles 200 Full Success	✅	2028ms
Partial Batch Handling.Handles 200 With All Ok	✅	3045ms
Partial Batch Handling.Does Not Retry Dropped Events	✅	3035ms
Partial Batch Handling.Does Not Retry Limited Events	✅	3034ms
Partial Batch Handling.Prunes Ok Events On Partial Retry	✅	5031ms
Partial Batch Handling.Prunes Dropped Events On Partial Retry	✅	5026ms
Partial Batch Handling.Retries Only Retry Events From Partial	✅	5027ms
Partial Batch Handling.Partial Retry Preserves Uuids	✅	5028ms
Partial Batch Handling.Partial Retry Attempt Header Increments	✅	5032ms
Partial Batch Handling.Partial Retry Request Id Preserved	✅	5034ms
Partial Batch Handling.Respects Retry After On Partial	✅	5026ms
Partial Batch Handling.Unknown Result Treated As Terminal	✅	3027ms
Partial Batch Handling.Mixed Ok Drop Limited No Retry	✅	3034ms
Compression.Sends Gzip Content Encoding	✅	35ms
Compression.No Content Encoding When Disabled	✅	23ms
Compression.Compressed Body Is Decompressible	✅	23ms
Error Handling.Does Not Retry On Unknown 4Xx	✅	2024ms
Event Options.Cookieless Mode Override	✅	25ms
Event Options.Disable Skew Correction Override	✅	23ms
Event Options.Process Person Profile Override	✅	23ms
Event Options.Product Tour Id Override	✅	24ms
Event Options.Unset Options Omitted	✅	26ms
Event Options.Options Override In Batch	✅	24ms
Geoip And Historical Migration.Geoip Disable Injected Into Properties	✅	23ms
Geoip And Historical Migration.Historical Migration Set In Body	✅	22ms
Geoip And Historical Migration.Historical Migration Absent By Default	✅	24ms

Feature_Flags Tests

✅ 17/17 tests passed

View Details

Test	Status	Duration
Request Payload.Request With Person Properties Device Id	✅	14ms
Request Payload.Flags Request Uses V2 Query Param	✅	15ms
Request Payload.Flags Request Hits Flags Path Not Decide	✅	14ms
Request Payload.Flags Request Omits Authorization Header	✅	17ms
Request Payload.Token In Flags Body Matches Init	✅	16ms
Request Payload.Groups Round Trip	✅	17ms
Request Payload.Groups Default To Empty Object	✅	16ms
Request Payload.Disable Geoip False Propagates As Geoip Disable False	✅	14ms
Request Payload.Disable Geoip Omitted Defaults To False	✅	17ms
Request Payload.Flag Keys To Evaluate Contains Only Requested Key	✅	16ms
Request Lifecycle.No Flags Request On Init Alone	✅	13ms
Request Lifecycle.No Flags Request On Normal Capture	✅	26ms
Request Lifecycle.Two Flag Calls Produce Two Remote Requests	✅	18ms
Request Lifecycle.Mock Response Value Is Returned To Caller	✅	16ms
Retry Behavior.Retries Flags On 502	✅	220ms
Retry Behavior.Retries Flags On 504	✅	219ms
Side Effect Events.Get Feature Flag Captures Feature Flag Called Event	✅	25ms

[github-actions]

posthog-rs-v1-async-encoding_deflate Compliance Report

Date: 2026-09-07T20:17:57.851572+00:00
Duration: 22796ms

✅ All Tests Passed!

111/111 tests passed

---

Capture_V1 Tests

✅ 94/94 tests passed

View Details

Test	Status	Duration
Endpoint And Method.Targets V1 Endpoint	✅	115ms
Endpoint And Method.Does Not Use Legacy Endpoints	✅	114ms
Required Headers.Has Authorization Bearer Header	✅	114ms
Required Headers.Has Content Type Json	✅	113ms
Required Headers.Has Posthog Sdk Info Format	✅	113ms
Required Headers.Has Posthog Attempt Header	✅	113ms
Required Headers.Has Posthog Request Id	✅	113ms
Required Headers.Has Posthog Request Timestamp	✅	113ms
Required Headers.Has User Agent	✅	115ms
Body Format.Body Has Created At And Batch	✅	112ms
Body Format.No Api Key In Body	✅	108ms
Body Format.No Sent At In Body	✅	109ms
Event Format.Event Has Required Root Fields	✅	108ms
Event Format.Event Uuid Is Valid	✅	110ms
Event Format.Event Timestamp Is Rfc3339	✅	109ms
Event Format.Non Utc Event Timestamp Is Converted To Utc	✅	110ms
Event Format.Distinct Id Is String	✅	108ms
Event Format.Distinct Id At Root Not Properties	✅	108ms
Event Format.Custom Properties Preserved	✅	108ms
Event Format.Set Properties Preserved	✅	106ms
Event Format.Set Once Properties Preserved	✅	105ms
Event Format.Groups Properties Preserved	✅	104ms
Event Format.Sdk Generates Uuid If Not Provided	✅	114ms
Event Format.Event Has Required Root Fields Batch	✅	138ms
Event Format.Event Uuid Is Valid Batch	✅	138ms
Event Format.Event Timestamp Is Rfc3339 Batch	✅	120ms
Event Format.Distinct Id Is String Batch	✅	137ms
Event Format.Distinct Id At Root Not Properties Batch	✅	137ms
Event Format.Custom Properties Preserved Batch	✅	129ms
Event Format.Set Properties Preserved Batch	✅	127ms
Event Format.Set Once Properties Preserved Batch	✅	100ms
Event Format.Groups Properties Preserved Batch	✅	111ms
Event Format.Sdk Generates Uuid If Not Provided Batch	✅	99ms
Batch Behavior.Multiple Events In Single Batch	✅	150ms
Batch Behavior.Batch Envelope Smoke	✅	126ms
Batch Behavior.Flush With No Events Sends Nothing	✅	77ms
Batch Behavior.Flush At Triggers Batch	✅	1102ms
Batch Behavior.Created At Reflects Batch Creation Time	✅	78ms
Deduplication.Generates Unique Uuids	✅	155ms
Deduplication.Different Events Same Content Different Uuids	✅	100ms
Deduplication.Preserves Uuid On Retry	✅	5069ms
Deduplication.Preserves Timestamp On Retry	✅	5068ms
Deduplication.Preserves Uuid And Timestamp On Batch Retry	✅	5091ms
Deduplication.No Duplicate Events In Batch	✅	111ms
Header Behavior On Retry.Attempt Header Starts At One	✅	74ms
Header Behavior On Retry.Attempt Header Increments On Retry	✅	10071ms
Header Behavior On Retry.Request Id Preserved On Retry	✅	5053ms
Header Behavior On Retry.Different Requests Have Different Request Ids	✅	2060ms
Header Behavior On Retry.Request Timestamp Changes On Retry	✅	5040ms
Response Format Validation.Success Response Has Uuid Keyed Results	✅	41ms
Response Format Validation.Success Response Has Ok For Each Event	✅	26ms
Response Format Validation.Success No Retry After When All Ok	✅	26ms
Response Format Validation.Success Retry After Present When Retry Events	✅	23ms
Response Format Validation.Success No Retry After When Drop Only	✅	21ms
Response Format Validation.Response Echoes Request Id	✅	22ms
Retry Behavior.Retries On 408	✅	5024ms
Retry Behavior.Retries On 500	✅	5018ms
Retry Behavior.Retries On 503	✅	5022ms
Retry Behavior.Retries On 504	✅	5020ms
Retry Behavior.Retryable Errors Have Retry After	✅	2033ms
Retry Behavior.Respects Retry After On Retryable Error	✅	8026ms
Retry Behavior.Does Not Retry On 400	✅	2027ms
Retry Behavior.Does Not Retry On 401	✅	2021ms
Retry Behavior.Does Not Retry On 402	✅	2018ms
Retry Behavior.Does Not Retry On 413	✅	2020ms
Retry Behavior.Does Not Retry On 415	✅	2019ms
Retry Behavior.Non Retryable Errors Have No Retry After	✅	2021ms
Retry Behavior.Implements Backoff	✅	15020ms
Retry Behavior.Max Retries Respected	✅	15026ms
Partial Batch Handling.Handles 200 Full Success	✅	2037ms
Partial Batch Handling.Handles 200 With All Ok	✅	3026ms
Partial Batch Handling.Does Not Retry Dropped Events	✅	3029ms
Partial Batch Handling.Does Not Retry Limited Events	✅	3023ms
Partial Batch Handling.Prunes Ok Events On Partial Retry	✅	5022ms
Partial Batch Handling.Prunes Dropped Events On Partial Retry	✅	5020ms
Partial Batch Handling.Retries Only Retry Events From Partial	✅	5021ms
Partial Batch Handling.Partial Retry Preserves Uuids	✅	5021ms
Partial Batch Handling.Partial Retry Attempt Header Increments	✅	5024ms
Partial Batch Handling.Partial Retry Request Id Preserved	✅	5026ms
Partial Batch Handling.Respects Retry After On Partial	✅	5020ms
Partial Batch Handling.Unknown Result Treated As Terminal	✅	3022ms
Partial Batch Handling.Mixed Ok Drop Limited No Retry	✅	3029ms
Compression.Sends Deflate Content Encoding	✅	29ms
Compression.No Content Encoding When Disabled	✅	17ms
Error Handling.Does Not Retry On Unknown 4Xx	✅	2019ms
Event Options.Cookieless Mode Override	✅	19ms
Event Options.Disable Skew Correction Override	✅	18ms
Event Options.Process Person Profile Override	✅	17ms
Event Options.Product Tour Id Override	✅	18ms
Event Options.Unset Options Omitted	✅	18ms
Event Options.Options Override In Batch	✅	18ms
Geoip And Historical Migration.Geoip Disable Injected Into Properties	✅	19ms
Geoip And Historical Migration.Historical Migration Set In Body	✅	18ms
Geoip And Historical Migration.Historical Migration Absent By Default	✅	17ms

Feature_Flags Tests

✅ 17/17 tests passed

View Details

Test	Status	Duration
Request Payload.Request With Person Properties Device Id	✅	12ms
Request Payload.Flags Request Uses V2 Query Param	✅	11ms
Request Payload.Flags Request Hits Flags Path Not Decide	✅	13ms
Request Payload.Flags Request Omits Authorization Header	✅	14ms
Request Payload.Token In Flags Body Matches Init	✅	11ms
Request Payload.Groups Round Trip	✅	11ms
Request Payload.Groups Default To Empty Object	✅	11ms
Request Payload.Disable Geoip False Propagates As Geoip Disable False	✅	11ms
Request Payload.Disable Geoip Omitted Defaults To False	✅	12ms
Request Payload.Flag Keys To Evaluate Contains Only Requested Key	✅	11ms
Request Lifecycle.No Flags Request On Init Alone	✅	9ms
Request Lifecycle.No Flags Request On Normal Capture	✅	18ms
Request Lifecycle.Two Flag Calls Produce Two Remote Requests	✅	13ms
Request Lifecycle.Mock Response Value Is Returned To Caller	✅	11ms
Retry Behavior.Retries Flags On 502	✅	215ms
Retry Behavior.Retries Flags On 504	✅	215ms
Side Effect Events.Get Feature Flag Captures Feature Flag Called Event	✅	19ms

[github-actions]

posthog-rs-v1-async-encoding_br Compliance Report

Date: 2026-09-07T20:18:09.040132+00:00
Duration: 23019ms

✅ All Tests Passed!

111/111 tests passed

---

Capture_V1 Tests

✅ 94/94 tests passed

View Details

Test	Status	Duration
Endpoint And Method.Targets V1 Endpoint	✅	149ms
Endpoint And Method.Does Not Use Legacy Endpoints	✅	158ms
Required Headers.Has Authorization Bearer Header	✅	156ms
Required Headers.Has Content Type Json	✅	156ms
Required Headers.Has Posthog Sdk Info Format	✅	155ms
Required Headers.Has Posthog Attempt Header	✅	153ms
Required Headers.Has Posthog Request Id	✅	145ms
Required Headers.Has Posthog Request Timestamp	✅	146ms
Required Headers.Has User Agent	✅	145ms
Body Format.Body Has Created At And Batch	✅	155ms
Body Format.No Api Key In Body	✅	154ms
Body Format.No Sent At In Body	✅	153ms
Event Format.Event Has Required Root Fields	✅	153ms
Event Format.Event Uuid Is Valid	✅	153ms
Event Format.Event Timestamp Is Rfc3339	✅	147ms
Event Format.Non Utc Event Timestamp Is Converted To Utc	✅	145ms
Event Format.Distinct Id Is String	✅	145ms
Event Format.Distinct Id At Root Not Properties	✅	146ms
Event Format.Custom Properties Preserved	✅	151ms
Event Format.Set Properties Preserved	✅	143ms
Event Format.Set Once Properties Preserved	✅	120ms
Event Format.Groups Properties Preserved	✅	130ms
Event Format.Sdk Generates Uuid If Not Provided	✅	119ms
Event Format.Event Has Required Root Fields Batch	✅	138ms
Event Format.Event Uuid Is Valid Batch	✅	150ms
Event Format.Event Timestamp Is Rfc3339 Batch	✅	178ms
Event Format.Distinct Id Is String Batch	✅	187ms
Event Format.Distinct Id At Root Not Properties Batch	✅	174ms
Event Format.Custom Properties Preserved Batch	✅	160ms
Event Format.Set Properties Preserved Batch	✅	180ms
Event Format.Set Once Properties Preserved Batch	✅	140ms
Event Format.Groups Properties Preserved Batch	✅	140ms
Event Format.Sdk Generates Uuid If Not Provided Batch	✅	131ms
Batch Behavior.Multiple Events In Single Batch	✅	185ms
Batch Behavior.Batch Envelope Smoke	✅	171ms
Batch Behavior.Flush With No Events Sends Nothing	✅	58ms
Batch Behavior.Flush At Triggers Batch	✅	1132ms
Batch Behavior.Created At Reflects Batch Creation Time	✅	101ms
Deduplication.Generates Unique Uuids	✅	201ms
Deduplication.Different Events Same Content Different Uuids	✅	106ms
Deduplication.Preserves Uuid On Retry	✅	5107ms
Deduplication.Preserves Timestamp On Retry	✅	5082ms
Deduplication.Preserves Uuid And Timestamp On Batch Retry	✅	5122ms
Deduplication.No Duplicate Events In Batch	✅	151ms
Header Behavior On Retry.Attempt Header Starts At One	✅	87ms
Header Behavior On Retry.Attempt Header Increments On Retry	✅	10091ms
Header Behavior On Retry.Request Id Preserved On Retry	✅	5080ms
Header Behavior On Retry.Different Requests Have Different Request Ids	✅	2066ms
Header Behavior On Retry.Request Timestamp Changes On Retry	✅	5047ms
Response Format Validation.Success Response Has Uuid Keyed Results	✅	37ms
Response Format Validation.Success Response Has Ok For Each Event	✅	40ms
Response Format Validation.Success No Retry After When All Ok	✅	33ms
Response Format Validation.Success Retry After Present When Retry Events	✅	33ms
Response Format Validation.Success No Retry After When Drop Only	✅	37ms
Response Format Validation.Response Echoes Request Id	✅	26ms
Retry Behavior.Retries On 408	✅	5030ms
Retry Behavior.Retries On 500	✅	5027ms
Retry Behavior.Retries On 503	✅	5027ms
Retry Behavior.Retries On 504	✅	5025ms
Retry Behavior.Retryable Errors Have Retry After	✅	2028ms
Retry Behavior.Respects Retry After On Retryable Error	✅	8029ms
Retry Behavior.Does Not Retry On 400	✅	2026ms
Retry Behavior.Does Not Retry On 401	✅	2033ms
Retry Behavior.Does Not Retry On 402	✅	2029ms
Retry Behavior.Does Not Retry On 413	✅	2031ms
Retry Behavior.Does Not Retry On 415	✅	2025ms
Retry Behavior.Non Retryable Errors Have No Retry After	✅	2025ms
Retry Behavior.Implements Backoff	✅	15033ms
Retry Behavior.Max Retries Respected	✅	15032ms
Partial Batch Handling.Handles 200 Full Success	✅	2042ms
Partial Batch Handling.Handles 200 With All Ok	✅	3036ms
Partial Batch Handling.Does Not Retry Dropped Events	✅	3034ms
Partial Batch Handling.Does Not Retry Limited Events	✅	3032ms
Partial Batch Handling.Prunes Ok Events On Partial Retry	✅	5033ms
Partial Batch Handling.Prunes Dropped Events On Partial Retry	✅	5025ms
Partial Batch Handling.Retries Only Retry Events From Partial	✅	5026ms
Partial Batch Handling.Partial Retry Preserves Uuids	✅	5026ms
Partial Batch Handling.Partial Retry Attempt Header Increments	✅	5033ms
Partial Batch Handling.Partial Retry Request Id Preserved	✅	5035ms
Partial Batch Handling.Respects Retry After On Partial	✅	5025ms
Partial Batch Handling.Unknown Result Treated As Terminal	✅	3025ms
Partial Batch Handling.Mixed Ok Drop Limited No Retry	✅	3036ms
Compression.Sends Br Content Encoding	✅	27ms
Compression.No Content Encoding When Disabled	✅	23ms
Error Handling.Does Not Retry On Unknown 4Xx	✅	2024ms
Event Options.Cookieless Mode Override	✅	25ms
Event Options.Disable Skew Correction Override	✅	23ms
Event Options.Process Person Profile Override	✅	23ms
Event Options.Product Tour Id Override	✅	23ms
Event Options.Unset Options Omitted	✅	24ms
Event Options.Options Override In Batch	✅	24ms
Geoip And Historical Migration.Geoip Disable Injected Into Properties	✅	22ms
Geoip And Historical Migration.Historical Migration Set In Body	✅	23ms
Geoip And Historical Migration.Historical Migration Absent By Default	✅	22ms

Feature_Flags Tests

✅ 17/17 tests passed

View Details

Test	Status	Duration
Request Payload.Request With Person Properties Device Id	✅	15ms
Request Payload.Flags Request Uses V2 Query Param	✅	14ms
Request Payload.Flags Request Hits Flags Path Not Decide	✅	16ms
Request Payload.Flags Request Omits Authorization Header	✅	15ms
Request Payload.Token In Flags Body Matches Init	✅	14ms
Request Payload.Groups Round Trip	✅	15ms
Request Payload.Groups Default To Empty Object	✅	14ms
Request Payload.Disable Geoip False Propagates As Geoip Disable False	✅	14ms
Request Payload.Disable Geoip Omitted Defaults To False	✅	16ms
Request Payload.Flag Keys To Evaluate Contains Only Requested Key	✅	16ms
Request Lifecycle.No Flags Request On Init Alone	✅	13ms
Request Lifecycle.No Flags Request On Normal Capture	✅	24ms
Request Lifecycle.Two Flag Calls Produce Two Remote Requests	✅	16ms
Request Lifecycle.Mock Response Value Is Returned To Caller	✅	14ms
Retry Behavior.Retries Flags On 502	✅	219ms
Retry Behavior.Retries Flags On 504	✅	218ms
Side Effect Events.Get Feature Flag Captures Feature Flag Called Event	✅	24ms

[github-actions]

posthog-rs-v0-async-encoding_gzip Compliance Report

Date: 2026-09-07T20:19:28.006408+00:00
Duration: 15585ms

✅ All Tests Passed!

47/47 tests passed

---

Capture Tests

✅ 30/30 tests passed

View Details

Test	Status	Duration
Format Validation.Event Has Required Fields	✅	141ms
Format Validation.Event Has Uuid	✅	146ms
Format Validation.Event Has Lib Properties	✅	146ms
Format Validation.Distinct Id Is String	✅	147ms
Format Validation.Token Is Present	✅	147ms
Format Validation.Custom Properties Preserved	✅	144ms
Format Validation.Event Has Timestamp	✅	143ms
Format Validation.Non Utc Event Timestamp Is Converted To Utc	✅	138ms
Retry Behavior.Retries On 503	✅	5146ms
Retry Behavior.Does Not Retry On 400	✅	2149ms
Retry Behavior.Does Not Retry On 401	✅	2118ms
Retry Behavior.Respects Retry After Header	✅	5110ms
Retry Behavior.Implements Backoff	✅	15117ms
Retry Behavior.Retries On 500	✅	5110ms
Retry Behavior.Retries On 502	✅	5107ms
Retry Behavior.Retries On 504	✅	5114ms
Retry Behavior.Max Retries Respected	✅	15114ms
Deduplication.Generates Unique Uuids	✅	116ms
Deduplication.Preserves Uuid On Retry	✅	5024ms
Deduplication.Preserves Uuid And Timestamp On Retry	✅	10026ms
Deduplication.Preserves Uuid And Timestamp On Batch Retry	✅	5027ms
Deduplication.No Duplicate Events In Batch	✅	25ms
Deduplication.Different Events Have Different Uuids	✅	22ms
Compression.Sends Gzip When Enabled	✅	24ms
Batch Format.Uses Proper Batch Structure	✅	22ms
Batch Format.Flush With No Events Sends Nothing	✅	25ms
Batch Format.Multiple Events Batched Together	✅	120ms
Error Handling.Does Not Retry On 403	✅	2087ms
Error Handling.Does Not Retry On 413	✅	2084ms
Error Handling.Retries On 408	✅	5096ms

Feature_Flags Tests

✅ 17/17 tests passed

View Details

Test	Status	Duration
Request Payload.Request With Person Properties Device Id	✅	54ms
Request Payload.Flags Request Uses V2 Query Param	✅	54ms
Request Payload.Flags Request Hits Flags Path Not Decide	✅	48ms
Request Payload.Flags Request Omits Authorization Header	✅	30ms
Request Payload.Token In Flags Body Matches Init	✅	38ms
Request Payload.Groups Round Trip	✅	36ms
Request Payload.Groups Default To Empty Object	✅	38ms
Request Payload.Disable Geoip False Propagates As Geoip Disable False	✅	37ms
Request Payload.Disable Geoip Omitted Defaults To False	✅	38ms
Request Payload.Flag Keys To Evaluate Contains Only Requested Key	✅	41ms
Request Lifecycle.No Flags Request On Init Alone	✅	16ms
Request Lifecycle.No Flags Request On Normal Capture	✅	63ms
Request Lifecycle.Two Flag Calls Produce Two Remote Requests	✅	57ms
Request Lifecycle.Mock Response Value Is Returned To Caller	✅	43ms
Retry Behavior.Retries Flags On 502	✅	250ms
Retry Behavior.Retries Flags On 504	✅	246ms
Side Effect Events.Get Feature Flag Captures Feature Flag Called Event	✅	50ms