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Author SHA1 Message Date
Michael Dieringer
260d064ece Add TableRelation field-length and RecordRef.Open Temp knowledge
- data-modeling: tablerelation-field-length-must-match-related-field
  (exact length for unconditional relations, at least the longest target
  when all relations are conditional; no compile-time diagnostic)
- testing: recordref-open-temp-parameter-defeats-real-table-checks
  (a temp-opened RecordRef is empty, so existence/uniqueness checks on it
  never see persisted rows; cross-links use-generateguid article)
- Wire both into the review leaves and register the fixture pairs.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-01 23:18:10 +02:00
Jesper Schulz-Wedde
164b27d0b2
Restore deterministic review fixture coverage (#202)
Some checks are pending
Validate knowledge index / validate-index (push) Waiting to run
Validate AL review fixtures / validate-review-fixtures (push) Waiting to run
Validate skill index and report schemas / validate-contract (push) Waiting to run
Validate frontmatter and structure / validate (push) Waiting to run
Co-authored-by: Jesper Schulz-Wedde <jesper.schulzwedde@microsoft.com>
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
2026-09-29 17:29:36 +02:00
Michael Dieringer
830eaff68f
3 AL/BC testing patterns from an external BC testing expert's blog (Luc van Vugt, fluxxus.nl) (#159)
* Add 4 more AL/BC testing patterns from Luc van Vugt's fluxxus.nl blog

Fourth batch from CURABIS ApS, mined from an external BC/NAV testing expert's blog archive (fluxxus.nl). Confirm+StrSubstNo interaction with ConfirmHandler, Table Relation Test's OnAfterRemoveTableRelation exclusion hook (verified against BCApps source, codeunit 134926), committing shared lazy-Initialize fixture data, and Assert.IsFalse vs asserterror for boolean checks.

* Address Jesper Schulz-Wedde's review on PR #159

- transactionmodel-attribute-governs-test-transactions.md: the "Commit
  causes an error" behavior is specific to an explicitly declared
  AutoRollback attribute. A test method with no TransactionModel
  attribute at all is a distinct, valid shape — BCApps' own
  codeunit 134915 "ERM Online Mapping Setup" commits inside a lazy
  Initialize() with no attribute declared, cleaning up via a manual
  asserterror at the end. Evidence for commit-shared-test-fixture-
  inside-lazy-initialize.md (this PR), which is correct as submitted.
- confirm-needs-strsubstno-before-confirmhandler-sees-substituted-text.md:
  reframe as a known, unconfirmed-fix platform defect
  (microsoft/ALAppExtensions#23935) rather than designed behavior; add
  the Message/MessageHandler asymmetry as supporting evidence.
- table-relation-test-exclude-known-invalid-relations-via-event.md:
  note the test-app-only consumer dependency; correct "walks every
  TableRelation field property in the app" to the actual tenant-wide
  Table Relations Metadata scope across installed apps.
- Wire confirm-needs-strsubstno, commit-shared-test-fixture-inside-
  lazy-initialize, and table-relation-test-exclude-known-invalid-
  relations-via-event into al-testing-review.md's candidate-selection
  cues.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* Address second round of Jesper Schulz-Wedde's review on PR #159

- commit-shared-test-fixture-inside-lazy-initialize.md: fundamentally
  rewritten. AutoCommit is the documented default TransactionModel, not
  AutoRollback. Explains the real mechanism (Commit() protects a fixture
  from the test method's own later deliberate rollback, per Codeunit.Run/
  TransactionModel-property semantics) and the TestIsolation dependency
  (Disabled/Codeunit survive across methods, Function does not). Fixtures
  rewritten to demonstrate the actual failure/success shape.
- transactionmodel-attribute-governs-test-transactions.md: now states the
  AutoCommit default explicitly and agrees with the article above, closing
  the contradiction Jesper flagged between the two testing articles.
- Deleted confirm-needs-strsubstno-before-confirmhandler-sees-substituted-text
  (.md/.good.al/.bad.al): the underlying platform bug (microsoft/
  ALAppExtensions#23935) was closed as completed in Feb 2024; cannot be
  reproduced or bc-version-pinned on any currently supported version.
- table-relation-test-exclude-known-invalid-relations-via-event.md: added
  the [Scope('OnPrem')] boundary verified against BCApps' Table Relation
  Test codeunit.
- use-assert-isfalse-not-asserterror-for-boolean-checks.md: added a Scope
  section resolving the overlap with asserterror-needs-expectederror-and-code.
- al-testing-review.md: fixed the shared-fixture cue to catch the actual
  anti-pattern instead of the compliant shape, added the missing cue for
  use-assert-isfalse-not-asserterror-for-boolean-checks, wired precedence
  between it and the generic asserterror rule, and removed the cue for the
  deleted article.
- Added in-file Source provenance (specific fluxxus.nl post per article,
  with what was independently verified vs. taken from the post) to the
  three surviving externally-inspired articles, per Jesper's request that
  provenance live in the knowledge file itself, not only the PR description.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* Fix remaining correctness issues from Jesper's 2026-09-15 re-review

- commit-shared-test-fixture-inside-lazy-initialize: three sub-issues.
  Recommended TestIsolation = Codeunit instead of listing Disabled as an
  equal option - Disabled never rolls back at all ("tests are not
  isolated from each other" per the property's own docs), so a fixture
  this pattern commits under Disabled is permanent database
  contamination unless something else tears it down; Disabled is now
  only mentioned alongside that explicit teardown requirement. Added
  precedence in al-testing-review.md so the deliberate end-of-test
  asserterror Error(...) rollback sentinel isn't also flagged by the
  generic asserterror-needs-expectederror-and-code rule. Rewrote both
  fixtures to actually demonstrate the pattern: persisted fixture data
  (an Item record) instead of an empty comment, a second [Test] method
  that depends on the fixture surviving into it, and an explicit
  Subtype = TestRunner / TestIsolation = Codeunit runner codeunit.

- table-relation-test-exclude-known-invalid-relations-via-event:
  the length/type rule was stated as one global requirement. Verified
  ValidateFieldRelation in codeunit 134926 directly (BCApps reference
  clone) and split it into the two branches the source actually has:
  a field with any unconditional relation needs exact length and exact
  resolved type; a field whose relations are all conditional only fails
  on being shorter (longer is fine) than the largest related field, and
  when the required type is specifically Code, a Text source passes too
  - a tolerance that does not apply on the unconditional side and does
  not extend to a required Text.

Rebased onto upstream/main (one conflict in
transactionmodel-attribute-governs-test-transactions.md - upstream had
already linked its sample references via the READ convention, ours
added a Source section; merged both). Also converted the 3 remaining
plain-backtick sample references in this PR to the READ-convention
markdown-link form, same fix as #156/#157/#158.

* Fix four merge-critical issues from Jesper's 2026-09-22 review

- al-testing-review.md: the generic ExpectedError cue's asserterror
  Assert.IsTrue/IsFalse exclusion was unconditional, but the
  specialized rule it deferred to only claims the pure-inversion
  shape. A test expecting the guarded Boolean-returning call itself to
  raise fell through both routes. Narrowed the exclusion to the same
  inversion-only condition the specialized cue already uses.
- asserterror-needs-expectederror-and-code.md: the rollback-sentinel
  exception (a trailing asserterror Error(...) used purely to force a
  fixture rollback, not to verify a specific failure) previously lived
  only in skill routing prose. Encoded it directly in the article's
  Anti Pattern section so every consumer of the knowledge base sees it,
  not just this one skill.
- commit-shared-test-fixture-inside-lazy-initialize.good.al/.bad.al:
  replaced hand-rolled Item.Init()/Insert(true) with
  LibraryInventory.CreateItem, so the canonical fixture doesn't itself
  trigger use-library-codeunits-for-test-fixtures.
- table-relation-test-exclude-known-invalid-relations-via-event.good.al/
  .bad.al: declared minimal "Sample Setup"/"Sample Header" tables
  inline instead of referencing undefined symbols, matching this
  repo's own convention that every fixture is self-contained.

* Give the table-relation-test fixtures a real relation to exclude and one to protect

The "Category Code" field had no TableRelation at all, so the good
subscriber's RemoveTableRelation call targeted metadata that never
existed - a no-op. Added a real TableRelation to "Sample Setup" on
that field (the one known exception to exclude) and a second,
ordinary self-referencing relation ("Parent No." -> "Sample
Header"."No.") with no exception. The good fixture now removes only
the first; the bad fixture's table-wide removal (field/related
table/field all 0) now demonstrably also strips the second, showing
the actual anti-pattern instead of removing nothing meaningful.

---------

Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
Co-authored-by: Jesper Schulz-Wedde <jesper.schulzwedde@microsoft.com>
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
2026-09-29 17:13:06 +02:00
Michael Dieringer
f63943dcfd
18 more AL/BC patterns: data-modeling, testing, style, security, error-handling, ui, upgrade, web-services, appsource (#157)
* Add 18 more community AL/BC patterns across appsource, data-modeling, error-handling, security, style, testing, ui, upgrade, and web-services

Second contribution from CURABIS ApS, generalized from patterns observed across real AppSource/PTE development. Cross-checked against the current microsoft/knowledge corpus before opening; several originally-drafted candidates were dropped as duplicates of existing files.

* Address Jesper Schulz-Wedde's review on PR #157

- release-must-update-app-version.md: reframe around AppSource's actual
  strict full-version-ordering requirement; scope branching-policy
  claims as team convention, not platform rule.
- pictures-must-use-media-not-blob.md: MediaSet is a collection of
  independent media objects, not automatic image variants/thumbnails.
- log-writes-must-survive-rollback.{md,good.al}: StartSession's only
  data channel into the new session is its Record parameter to a
  TableNo-scoped codeunit; a setter called on a local instance before
  starting the session populates nothing in the new session.
- exposed-objects-must-be-in-a-permission-set.md: correct the three
  exposure mechanisms (Web Services config, PageType/QueryType=API,
  ServiceEnabled as a method-only attribute).
- pages-must-not-contain-business-logic.md: scope to persisted
  mutations and cross-entry-point rules; presentation-only
  calculations and table-owned invariants are not violations.
- given-blocks-must-cover-full-precondition-chain.good.al: replace
  invented LibrarySales calls with the real API
  (CreateCustomer/CreateSalesOrderForCustomerNo/PostSalesDocument).
- test-feature-scenario-tags.{md,good.al}: move [SCENARIO] inside the
  test procedure body to match the current BCApps corpus; keep
  [FEATURE] at codeunit level per Microsoft's own documented option.
- ui-test-codeunit-naming.md: scope the _UT suffix and adjacent-ID
  pairing as an explicit team convention, not a BCApps-wide standard.
- page-design-must-match-bc-page-type-conventions.md /
  table-design-must-match-bc-table-type-conventions.md: Card's
  single-key primary-key claim is a contextual heuristic, not a
  mandatory constraint (Ship-to Address, Customer/Vendor Bank Account
  are real composite-key Card pages); a Subsidiary table with its own
  identity commonly gets List+Card, not Worksheet/Tabular.
- api-page-least-privilege-write-access.{md,good.al}: only page-placed
  fields are ever exposed; set InsertAllowed/DeleteAllowed=false in the
  good sample so a narrow field set can't still create/delete records.
- source-organized-by-feature-not-object-type.md,
  test-one-when-per-test.md: scope as team/testing-design conventions,
  not Microsoft platform requirements.
- upgrade-tag-logic-must-not-nest-deeply.md: add the Microsoft Learn
  citation that already backs the two-level nesting limit.
- Wire the new articles into the testing/data-modeling/error-handling/
  security/ui review skills' candidate-selection signals.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* Address second round of Jesper Schulz-Wedde's review on PR #157

- log-writes-must-survive-rollback.good.al: fixed invalid trigger
  OnRun(var Rec: ...) declaration; Rec is implicit when TableNo is set.
- exposed-objects-must-be-in-a-permission-set.md: distinguished the three
  exposure mechanisms (page/query web service or API, codeunit published
  as a web service, [ServiceEnabled] bound action on a page) and their
  actual permission targets (page/query "..." = X vs codeunit "..." = X).
- code-must-not-change-workdate.md: scoped from an absolute "never" to
  "not as a side effect of unrelated logic" - verified real WorkDate(x)
  setter usage in BCApps demo-data generators and test codeunits.
- bcpt-scenarios-must-be-app-specific.md: SingleInstance and
  StartScenario/EndScenario reframed as context-dependent patterns, not
  mandatory requirements - BCPT Create Customer uses neither.
- test-feature-scenario-tags.good.al/.bad.al: replaced the invented
  LibrarySales.CreateCustomerWithPrice/"Item Price Mgt." calls with a real,
  verified price-list-line test using Library - Sales/Library - Inventory/
  Library - Price Calculation.
- page-design-must-match-bc-page-type-conventions.md: scoped the missing
  UsageCategory anti-pattern to pages intended as searchable entry points.
- defensive-vs-offensive-code-must-match-blast-radius.md/.good.al/.bad.al:
  replaced the VAT registration number "low blast radius" example with a
  genuinely cosmetic field (customer home page URL).
- source-organized-by-feature-not-object-type.md: anti-pattern reframed as
  inconsistency with a repo's own convention, not the object-type scheme
  itself.
- pictures-must-use-media-not-blob.md: removed leftover "image variants"
  wording contradicting the already-corrected MediaSet description.

Proactively fixed while sweeping all fixtures for invented APIs:
- given-blocks-must-cover-full-precondition-chain.bad.al: PostSalesOrder
  called with wrong arity and referenced an undeclared variable.
- ui-test-codeunit-naming.good.al/.bad.al: replaced the same fake
  "Item Price Mgt."/TestPage "Item Price" with real Library - Sales calls
  and the real Customer Card TestPage.

Worklist completeness: added review-skill cues for the 12 of 18 new rules
that had none (al-appsource-review.md, al-data-modeling-review.md,
al-error-handling-review.md, al-security-review.md, al-style-review.md x3,
al-testing-review.md x2, al-ui-review.md, al-upgrade-review.md,
al-web-services-review.md), and fixed test-feature-scenario-tags' cue,
which only matched the compliant (tagged) shape instead of the anti-pattern
(untagged/generic-named test).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* Fix ten focused correctness items plus sample links from Jesper's 2026-09-15 re-review

Six carried-over threads:
- api-page-least-privilege-write-access fixtures: added the mandatory
  EntityName/EntitySetName properties (AL0485).
- pages-must-not-contain-business-logic fixtures: Sales Line has no
  "Total Amount" field; replaced with the real "Line Amount" (field 103).
- test-feature-scenario-tags.good.al and test-one-when-per-test.good.al:
  CreatePriceHeader leaves a price list in Draft status, which price
  calculation ignores. Added Validate(Status, Active) + Modify before the
  sales line that depends on it. Verified Status field/enum against
  PriceListHeader.Table.al and PriceStatus.Enum.al in the BCApps clone.
- exposed-objects-must-be-in-a-permission-set.md: a published codeunit is
  a SOAP endpoint (SOAP is deprecated), not OData - Page/Query are the
  OData object types. Corrected and pointed new integrations at API
  pages/queries instead.
- al-error-handling-review.md: the log-writes-must-survive-rollback cue
  selected on Session.StartSession, which only appears in the compliant
  fix, never in the anti-pattern - the bad fixture could never be
  worklisted. Recued on the actual risk shape (log insert around a
  failed TryFunction/GetLastError* path, then raise/propagate), with
  StartSession as an explicit compliant discriminator instead.
- page-design-must-match-bc-page-type-conventions.md: the enum value is
  NavigatePage, not Navigate; noted the type list is a selected subset,
  not an exhaustive PageType catalogue (PromptDialog, ConfigurationDialog,
  UserControlHost, XmlPort also exist, out of this article's scope).

Four new correctness gaps:
- release-must-update-app-version.md: "the version is the only identity"
  was backwards - id is the app's stable identity, version identifies a
  release/code-state of it.
- defensive-vs-offensive-code-must-match-blast-radius.good.al: the "low
  blast radius" example had no else branch, so a failed Customer.Get()
  left the field at its prior/default value instead of the explicit
  chosen fallback the article claims to demonstrate. Added the else.
- bcpt-scenarios-must-be-app-specific.good.al: InitTest and both measured
  StartScenario/EndScenario sections were empty/comment-only, so the
  "app-specific" fixture measured no actual work. Filled in a real,
  self-contained header+line creation path.
- upgrade-tag-logic-must-not-nest-deeply.good.al: the flattened version
  dropped both safety conditions the bad fixture had (Discount % = 0,
  nonblank posting group), silently changing behavior instead of just
  removing nesting. Extracted the guarded update into a helper with both
  conditions preserved as early exits.

Also converted this PR's remaining plain-backtick "See sample:" sample
references (16 articles) to the READ-convention markdown-link form,
matching the fix already made on #156/#158.

Rebased onto upstream/main (conflicts in al-ui-review.md, al-style-review.md,
al-upgrade-review.md against merged upstream PRs - all additive, both
sides' worklist cues retained).

* Fix four merge-critical issues from Jesper's 2026-09-22 review

- pages-must-not-contain-business-logic.good.al/.bad.al: the "good"
  codeunit still directly assigned real Sales Line."Line Amount" and
  called Modify(), bypassing the field's normal Validate cascade
  (discount, VAT, related-amount maintenance) - persisting inconsistent
  document lines regardless of which object the code lived in. Replaced
  the real Sales Line example with a self-contained "Sample Order Line"
  table and switched the codeunit to Validate()/Modify(true), so the
  fixture demonstrates the page-vs-codeunit separation without teaching
  unsafe direct field writes to a real BC document table.
- bcpt-scenarios-must-be-app-specific.good.al: Customer.FindFirst()
  assumed a pre-existing customer (fails against an empty environment),
  and a session-local NextNo counter for the header key collides across
  concurrent BCPT sessions and repeated runs. Creates its own customer
  when none exists, and generates keys from CreateGuid() instead of an
  in-memory counter.
- upgrade-tag-logic-must-not-nest-deeply: the rule conflated two
  different things - nesting one tag's existence check inside another
  (the real anti-pattern Microsoft's guidance warns against) with
  having business-data safety conditions inside a single tagged
  migration's own loop body (which Microsoft's own worked example does,
  and its own design guidance explicitly requires: "Implement extra
  safety checks to avoid data corruption, even though you're using
  upgrade tags"). Rewrote the Description/Best Practice/Anti Pattern to
  scope the rule to actual tag nesting and migrations blended under one
  tag, and rewrote both fixtures: good.al now shows two safety
  conditions correctly nested inside one migration's own loop plus a
  second, genuinely separate migration as its own flat tagged
  procedure; bad.al now shows the real anti-pattern, one tag's check
  nested inside another's guarded body.
- table-design-must-match-bc-table-type-conventions: the rule and its
  worklist cue fired on any new table with a keys block, forcing
  buffers, queues, logs, mapping tables, and staging tables into the
  nearest-looking one of nine business-record archetypes. Added an
  explicit scope note that these nine types aren't an exhaustive table
  catalogue, and narrowed the al-data-modeling-review.md cue to require
  positive evidence (a type-specific naming suffix, key shape, or
  usage) before worklisting, instead of a bare keys/primary-key
  declaration.

* Narrow upgrade-tag nesting cue to match revised article

Cue now flags only nested upgrade-tag checks or functionally unrelated
migrations under one tag, and explicitly excludes record loops and
business-data safety guards belonging to a single migration.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
Co-authored-by: Jesper Schulz-Wedde <jesper.schulzwedde@microsoft.com>
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
2026-09-29 17:12:51 +02:00
Stefano Demiliani
4287233f80
Strengthen review contracts and add AL reliability guidance (#196)
* Strengthen review contracts and HTTP guidance

- add outbound HttpClient transport and HTTP status review rules with paired fixtures`n- resolve layered action-skill overrides deterministically across enabled layers`n- validate findings reports and enforce measurable changed-fixture coverage

* Add data handling and test isolation guidance

- add SCM guidance for deriving base quantities through line unit-of-measure validation`n- add security guidance for parameterizing SetFilter with external text`n- add test isolation guidance for resetting per-test state before initialization guards`n- add web-service guidance for JSON null handling and invariant standard format 9`n- route and cover all five rules with paired evaluation fixtures

* Fix findings report rollup validation

* Validate findings report rollups

* Enforce merged finding identity

* Fix locationless finding deduplication

* Reject conflicting merged corrections

* Detect conflicting leaf corrections

* Route HTTP error checks to canonical web-services knowledge

Let the Error Handling leaf conditionally retrieve the existing HTTP owner articles, preserving applicability and exact-path provenance. Add deterministic source-contract and retrieval regressions without duplicating knowledge rules.

Copilot-Session-Id: a92a7788-103e-4651-9b84-19e34caffb94

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: wenjiefan <wenjiefan@microsoft.com>
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Jesper Schulz-Wedde <jesper.schulzwedde@microsoft.com>
2026-09-29 13:03:39 +02:00
Michael Dieringer
186691f815
3 AL/BC patterns from CURABIS's internal automated-testing training material (#158)
* Add 3 more AL/BC patterns from CURABIS Academy testing course material

Third batch from CURABIS ApS: item-ledger-entry document-no lookup after Ship-and-Invoice posting, TestPage.Visible()/.Enabled() as the mechanism for verifying field UI state, and LibraryUtility.GenerateGUID() for collision-free test fixture values.

* Address Jesper Schulz-Wedde's review on PR #158

- use-generateguid-for-unique-test-fixture-values.md: GenerateGUID()
  is a Code[10] number-series value, not a real GUID; truncating it
  with CopyStr for a shorter field cuts off the changing digits. Point
  to GenerateRandomCode/GenerateRandomCodeWithLength/GenerateRandomXMLText
  instead, which verify uniqueness against the actual table.
- Split use-testpage-visible-enabled-to-verify-field-ui-state.md: drop
  its editability claim (the sample opens with OpenView() and asserts
  Enabled(), which verifies enabled state, not editability — Editable()
  and Enabled() are distinct TestField methods). New companion article
  use-testpage-editable-to-verify-field-editability.md covers Editable()
  with OpenEdit() specifically.
- Wire GenerateGUID/CopyStr and TestPage Visible/Enabled/Editable cues
  into al-testing-review.md, and the Item Ledger Entry/Last Shipping No.
  posting cue into al-data-modeling-review.md.

The Item Ledger Entry article itself was independently verified against
current BCApps source and needs no changes.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* Address second round of Jesper Schulz-Wedde's review on PR #158

- use-generateguid-for-unique-test-fixture-values.md/.good.al: documented
  each LibraryUtility helper's actual behavior, verified against
  LibraryUtility.Codeunit.al. GenerateRandomCode opens the target table as
  a temporary RecordRef, so despite taking TableNo it never checks real
  data. GenerateRandomXMLText performs no table lookup at all. Only
  GenerateRandomCodeWithLength/GenerateRandomCode20 (capped at Code[10]/
  Code[20]) genuinely verify against the real table. Fixture switched to
  GenerateRandomCodeWithLength where the comment claims verified
  uniqueness.
- al-testing-review.md: rewired the cue to catch the actual anti-pattern
  (hardcoded literals, hand-built uniqueness, short-field GUID truncation)
  instead of only matching the compliant GenerateGUID()+CopyStr shape;
  broadened tokens to include TestPage, Library - Utility, and
  .Visible()/.Enabled()/.Editable().
- al-data-modeling-review.md: restricted the Item Ledger Entry
  Last-Shipping-No. cue to sales combined posting; purchase combined
  posting is Receive+Invoice and uses different fields entirely.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* Fix remaining correctness issues from Jesper's 2026-09-15 re-review

- use-generateguid-for-unique-test-fixture-values.md: narrowed the
  collision rule to primary-key/unique-lookup fields - an ordinary
  descriptive field carries no uniqueness constraint, so a hardcoded
  or deterministic value there isn't the anti-pattern (the article and
  its al-testing-review.md worklist cue both said "primary-key or
  descriptive field"). Also corrected GenerateRandomCode: it opens its
  target table as a temporary RecordRef that starts and stays empty,
  so its repeat/until loop always exits after one iteration and never
  retries even within a single test run - the "non-colliding within a
  test run" claim was false. It's the rightmost N characters of
  GenerateGUID()'s sequential series, so a short field's value cycles
  (Code[1] repeats every 10 calls, Code[2] every 100). Verified against
  LibraryUtility.Codeunit.al in the BCApps reference clone.
- item-ledger-entry-document-no-follows-last-shipping-no: both
  fixtures called FindSet() without consuming its optional Boolean,
  which raises a runtime error on an empty result set - the opposite
  of the article's own claimed "silently matches zero rows, no error"
  behavior. Wrapped in `if ... then;` per the existing
  guard-database-reads.good.al idiom.
- al-data-modeling-review.md: widened both not-applicable scope
  clauses (intro and outcome) to include dimension wiring, posting-
  routine structure, and Item Ledger Entry document-number lookups -
  the leaf declared itself not-applicable outside setup/master/key/
  numbering/block/audit surfaces despite having a targeted cue for
  this PR's own new article.
- Converted this PR's 8 plain-backtick "See sample: `x.good.al`."
  references (across all 4 new articles) to the READ-convention
  markdown-link form required by Knowledge-Retrieval.ps1.

Rebased onto upstream/main (one conflict in al-data-modeling-review.md
intro wording, merged).

* Stop routing GenerateRandomCode20 as compliant for shorter fields

al-testing-review.md's cue presented GenerateRandomCodeWithLength and
GenerateRandomCode20 as interchangeable options for "a shorter field
needing real verified uniqueness." They aren't: verified against
LibraryUtility.Codeunit.al, GenerateRandomCode20 truncates
GenerateGUID()'s sequential value down to the target field's length by
keeping the leftmost (slowest-changing) characters via PadStr, so its
retry loop against a field shorter than 20 can churn through the same
truncated prefix for a long time. GenerateRandomCodeWithLength has no
such problem (it generates exactly the requested length of random
text). The knowledge article itself already scoped GenerateRandomCode20
to Code[20] correctly - only the skill cue needed narrowing to match.

---------

Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-29 12:49:11 +02:00
Michael Dieringer
0a8c9a8556
18 AL/BC patterns: style, data-modeling, web-services, appsource, breaking-changes, performance, testing (#156)
* Add 18 community AL/BC patterns across style, data-modeling, web-services, appsource, breaking-changes, performance, and testing

Contributed by CURABIS ApS, generalized from patterns observed across real AppSource/PTE development. Each article follows the knowledge file format (frontmatter, Description/Best Practice/Anti Pattern, sibling .good.al/.bad.al samples).

* Address Jesper Schulz-Wedde's review on PR #156

- Rename 3 articles so their .good.al/.bad.al companion stems match
  (do-not-change-primary-key, testfield-required-setup-field,
  al-identifiers-english), fixing the R14 orphan-sample errors.
- do-not-change-primary-key.good.al: include Flow in the new table's
  own primary key so it actually models the discriminating dimension.
- al-build-output-must-not-pollute-project-root.md: drop the
  unsubstantiated AL0197 causal claim and the non-existent
  al.outputPath setting; reframe as build-artifact hygiene sourced
  from ALTool --outfolder / al_build outputPath.
- prefer-email-module.md: Email Message is Codeunit 8904, not a table;
  distinguish it from the underlying Sent/Outbox/Draft storage.
- file-datatype-saas.md: File.Open/Create/Read/Write fails to compile
  against a Cloud-scoped project, it does not compile and silently
  fail at runtime.
- namespace-must-be-verified-from-source.md: narrow to "resolve from
  the referenced object's source or symbols," since source-file line
  one is not the only authoritative source (symbol packages, comments
  before the namespace line).
- test-data-must-be-random-and-complete.md: drop "assume an empty
  database" and "collision-free" absolutes; reframe around
  independence from unrelated business records and reserving explicit
  values for scenario-defining inputs.
- binary-choice-must-be-boolean.md: scope to genuine true/false
  semantics, not mechanical two-member-enum-to-boolean conversion.
- document-report-word-layout.md: scope down to a sourced Microsoft
  Learn recommendation instead of an unconditional performance
  guarantee; cite the three Learn pages.
- Wire the new articles into their review skills' candidate-selection
  signals (file-datatype-saas, prefer-email-module,
  namespace-must-be-verified-from-source, var-parameters-require-an-
  addressable-variable) so they can actually enter a worklist.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* Fix dimension-management-wiring.md: ValidateShortcutDimCode and CreateDim
do not exist on the current DimensionManagement codeunit

Verified against microsoft/BCApps: the real master-table validation
procedure is ValidateDimValueCode (or ValidateShortcutDimValues when a
DimSetID is also needed), and the real document-side inheritance
procedure is GetDefaultDimID, not CreateDim. Caught from Jesper
Schulz-Wedde's review thread, which had been partially hidden by
GitHub's comment folding.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* Address second round of Jesper Schulz-Wedde's review on PR #156

- dimension-management-wiring.md/.good.al: split into the two distinct
  models the article was conflating - master data (Default Dimension
  records via ValidateDimValueCode/SaveDefaultDim) vs. transactional/
  document data (a single Dimension Set ID assembled via AddDimSource +
  GetDefaultDimID, verified against BCApps' ExchRateAdjmtProcess.Codeunit.al).
  Added a compiling document-table example alongside the existing master
  table one.
- Deleted api-page-flowfields-must-be-calcfields (.md/.good.al/.bad.al):
  Microsoft's own FlowFields documentation states a FlowField used as a
  control's direct source expression is automatically calculated on any
  page - no API-page exception is documented, and none could be
  reproduced.
- prefer-email-module.bad.al/.md: Codeunit Mail has no Send/GetErrorDesc
  members; fixed to the real current 7-argument CreateMessage signature,
  and corrected the claim that the legacy path "still runs" - its base
  implementation no longer sends anything, only raises integration events.
- check-post-line-batch-pattern.md/.good.al: reframed from a universal
  invariant to the standard shape, naming the real Gen./Item/CA/Res./Job/
  Insurance/Mfg. Item/FA Jnl.-Check Line/-Post Line/-Post Batch codeunits
  it's based on. Added the missing Check Line companion codeunit so the
  good fixture is internally complete.
- test-data-must-be-random-and-complete.good.al: removed leftover
  "collision-free" wording contradicting the already-corrected article text.
- fixed-choice-set-must-use-enum-not-integer.md: removed the reintroduced
  state-count heuristic ("the line is the state count"), aligned with
  binary-choice-must-be-boolean.md's semantics-based distinction.
- namespace-must-be-verified-from-source.md: removed the false claim that
  the compiler and AL Language Server use different namespace-resolution
  rules.
- intrinsic-al-functions-must-use-modern-casing.md: removed the unverified
  claim that PascalCase is the VS Code formatter's default output.

Worklist completeness: added cues for the 8 rules in data-modeling,
testing, performance, and web-services that had none (Jesper's explicit
ask), plus the same gap in all 7 style rules from this PR (not explicitly
named this round, but the identical systemic issue) - 15 cues total across
al-data-modeling-review.md, al-testing-review.md, al-performance-review.md,
al-web-services-review.md, and al-style-review.md.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* Fix remaining correctness issues from Jesper's 2026-09-15 re-review

- dimension-management-wiring: SaveDefaultDim's third argument is the
  shortcut dimension number (1-8), not the field's AL field ID; the
  fixture passed FieldNo(...) = 10. GetDefaultDimID's InheritFromDimSetID
  must be 0 when recomputing after the linking record changes, not the
  document's existing Dimension Set ID (which would retain the previous
  customer's leftover dimensions). Verified against
  DimensionManagement.Codeunit.al and BankDepositHeader.Table.al in the
  BCApps reference clone.
- check-post-line-batch-pattern: "Post Line writes exactly one line to
  the ledger" overclaimed - Gen. Jnl.-Post Line alone calls InsertGLEntry
  from a dozen call sites (balancing entry, VAT, currency rounding,
  deferrals) and can write several G/L Entries per journal line.
  Reworded to "posts exactly one journal line" and softened the
  "distinct, non-overlapping responsibilities" absolute.
- namespace-must-be-verified-from-source.bad.al: dropped the "resolves
  in a local build, fails in VS Code" comment (taught an inherent
  compiler/language-server disagreement that isn't real); reframed as
  stale/cached symbols, matching the prose fix already made.
- file-datatype-saas.good.al: replaced the deprecated 5-argument
  UploadIntoStream overload with the current 2-argument one, and
  actually staged through TempBlob as the article's own Best Practice
  instructs (the declared TempBlob variable was previously unused).
- test-data-must-be-random-and-complete: no longer treats a
  short-but-valid value as defective merely for being "underfilled" -
  AL field lengths are maxima, not minimums. Scoped to missing values
  or a scenario with an explicit length/format requirement (e.g. a
  truncation test). Updated the al-testing-review.md routing cue to
  match.
- stored-derived-fields-must-not-be-exposed-directly: stopped mandating
  source-field exposure as part of the core pattern: the good fixture
  exposed only one of the derived value's two inputs (Hours Used, not
  Budgeted Hours), making the claimed "so the consumer can verify it"
  impossible. Reframed as an optional, all-or-nothing addition and
  fixed the fixture to expose both inputs.

Rebased onto upstream/main to resolve conflicts in
al-breaking-changes-review.md, al-data-modeling-review.md,
al-performance-review.md, and al-style-review.md against merged PRs
#148 and #153; all sides' worklist tokens/cues retained.

* Fix remaining READ-convention sample links across this PR's 18 articles

The same plain-backtick "See sample: \`x.good.al\`." form fixed on
al-methods-limited-during-write-transactions (PR #161) turned up
repo-wide on 15 more of this PR's articles - Knowledge-Retrieval.ps1
requires the markdown-link form to associate a sample with its
article. All 16 fixed; the four local validators (frontmatter,
knowledge-index, knowledge-retrieval, review-fixtures, skill-index)
pass.

* Fix two merge-critical correctness issues from Jesper's 2026-09-22 review

- api-page-key-fields-must-be-editable-on-insert.good.al and
  stored-derived-fields-must-not-be-exposed-directly.good.al: both were
  writable API pages missing DelayedInsert = true, contradicting this
  repo's own api-page-delayedinsert-true rule - the canonical "good"
  samples were teaching code BCQuality itself flags.
- dimension-management-wiring.good.al: UpdateDimensionSetID exited
  early when Customer.Get failed, leaving the previous customer's
  shortcut dimension and Dimension Set ID in place - the same staleness
  bug the InheritFromDimSetID = 0 fix (from the prior review round) was
  meant to prevent, just triggered by a failed lookup instead of a
  successful one. Now clears the shortcut field and recomputes with an
  empty source list on a failed lookup too, so GetDefaultDimID
  correctly returns an empty Dimension Set ID instead of never running.

---------

Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-29 12:48:17 +02:00
Jesper Schulz-Wedde
2b5550c346
Improve partner onboarding and documentation navigation (#174)
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Lead with a complete plugin quick start and add task-oriented usage, troubleshooting, customization, and contribution guides. Preserve the broader plugin framing, correct conflicting contract guidance, support Agents folder reviews, and align repository validation. Convert existing sample references to clickable links without changing knowledge rules.

Co-authored-by: Jesper Schulz-Wedde <jesper.schulzwedde@microsoft.com>
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
2026-09-09 17:31:03 +02:00
Wenjie Fan
1a5afdc0eb
Merge pull request #132 from microsoft/gggdttt-refine-self-improvement-guidance
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Refine self-improvement review guidance
2026-09-03 15:42:39 +02:00
wenjiefan
c213f1495e Exempt optional notification handlers from the HandlerFunctions execution rule
The narrowed UI-handler guidance still stated the execution rule without the
qualifier the linked Microsoft reference uses. The article said every listed
handler must execute at least once, and the testing leaf skill asked for
`[HandlerFunctions(...)]` to match the invoked handlers exactly. The reference
says every *nonoptional* listed handler must execute, and that send-notification
and recall-notification handlers can be optional. As written, an agent could
flag a deliberately unused optional notification handler.

The discriminator is narrower than the handler type. Both
`[SendNotificationHandler([HandlerIsOptional: Boolean])]` and
`[RecallNotificationHandler([HandlerIsOptional: Boolean])]` take an explicit
optionality argument, so `[SendNotificationHandler(true)]` is exempt while the
same attribute written without the argument stays nonoptional like every other
handler type. Keying the exemption on the argument rather than the type keeps it
checkable from the diff and avoids the opposite false positive, where an agent
stops flagging genuinely nonoptional notification handlers.

Changes:

- The article now states the nonoptional qualifier, explains that optionality is
  declared rather than inferred, and adds an explicit do-not-flag clause. That
  clause also forbids proposing removal, because the listed entry is what keeps
  the test passing on the runs where the notification does fire.
- The testing leaf skill carries the same boundary in its `ui-handlers-in-tests`
  cue, and its mechanical-fix list no longer allows removing a listed optional
  notification handler as a one-click suggestion.
- `SendNotificationHandler` and `RecallNotificationHandler` were missing from the
  skill's testing token list, so notification handlers were not reliably
  surfaced to the relevance step at all. Both are now listed.
- The good sample gains a test that lists an unreached
  `[SendNotificationHandler(true)]`; the bad sample gains the mirror image, an
  unreached `[SendNotificationHandler]` with no optionality argument. The pair
  differs only by that argument, which is the point.
- `evaluation/review-fixtures.json` pins the testing domain to
  `ui-handlers-in-tests` so the boundary is exercised: the good sample is the
  clean control at `minimumCleanRate` 1.0 and the bad sample is the expected
  finding. Keywords were retagged with `notification` and `optional-handler`.

validate_frontmatter.py reports 0 errors; Test-ReviewFixtures.ps1 passes with
32 cases across 16 leaf domains and resolves the testing fixture to this article.
2026-09-02 11:46:13 +02:00
Wenjie Fan
35a7e72f12
knowledge: three false-positive guards from BCApps PR 10277, 10278 and 10346 (#146)
data-modeling: add insert-only-transfer-may-rely-on-caller-cleanup. A filter-and-insert transfer routine was reported for stale rows and duplicate keys even though the field OnValidate trigger calls a sibling cleanup procedure that clears the same range immediately before it. Deciding this requires reading the caller, so the article asks reviewers to trace call sites and keeps uncleared or mismatched-filter paths reportable.

appsource: scope two-level-namespace-replaces-object-affix-not-extension-member-affix to apps that actually configure a mandatory affix. AS0011 only runs when AppSourceCop is enabled with a mandatory affix; a first-party in-box app that ships no such configuration is not subject to it. The member-affix requirement itself is unchanged for apps that do configure one.

testing: allow permission-tests-must-lower-the-execution-context to accept a composed role. The article demanded the exact permission set under test be assigned directly, so a test that lowered permissions through a role including that set and then asserted WritePermission was false was reported as a coverage gap. What matters is the effective context plus a boundary assertion, not which object the test names.

Co-authored-by: wenjiefan <wenjiefan@microsoft.com>
2026-09-02 11:25:19 +02:00
wenjiefan
ead337f9cb Address review guidance feedback
Preserve independent event seams, cover loop-carried handled state, strengthen checkpoint and UI-handler fixtures, and align DeleteAll fallback guidance.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 10646e50-2d8b-4cca-b02b-dfa78629e6a1
2026-08-18 14:09:11 +02:00
wenjiefan
5f1cff2fb6 Refine self-improvement review guidance
Narrow IsHandled, label-scope, UI-handler, checkpoint, and bulk-operation guidance to evidence-backed false-positive boundaries.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
2026-08-18 11:17:14 +02:00
Jesper Schulz-Wedde
186d8a1314
Complete AL review knowledge readiness (#108)
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* Complete AL review knowledge readiness

Fill telemetry and Query coverage, strengthen thin review domains, correct audited content defects, and add deterministic cheap-model evaluation and reference-integrity safeguards.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 9825b012-e653-496a-9310-c1f4b6f8ac27

* Generalize review fixture discovery

Derive smoke cases from the leaf, domain, and paired-sample conventions so new leaves require no scoring-contract changes. Keep only exceptional selection/context overrides and fail when retrieval metadata cannot rank the selected article.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 9825b012-e653-496a-9310-c1f4b6f8ac27

* Preserve published field IDs in sample

Keep the existing Email and Contact Email field IDs unchanged, clarify that the sample represents an independent baseline, and use a local breaking-change rule for the generic smoke evaluation.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 9825b012-e653-496a-9310-c1f4b6f8ac27

* Clarify published field identity rules

State explicitly that a published field keeps its ID, name, and type while a replacement is added as a separate field under an unused ID.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 9825b012-e653-496a-9310-c1f4b6f8ac27

* Align field obsoletion sample baselines

Use Email field ID 3 as the shared baseline so the bad example demonstrates a same-ID rename while the good example retains the original field and adds a separate replacement.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 9825b012-e653-496a-9310-c1f4b6f8ac27

---------

Co-authored-by: Jesper Schulz-Wedde <jesper.schulzwedde@microsoft.com>
2026-07-15 10:55:25 +02:00
Jesper Schulz-Wedde
5706959e4a
Fix lifecycle compatibility guidance (#93)
* Fix lifecycle compatibility guidance

Correct high-confidence Business Central guidance and samples for upgrade tags, collectible errors, trigger semantics, obsoletion, events, interfaces, API contracts, and test transactions.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: e05a43e7-6448-4d67-9c73-798523f5d945

* Address guidance review findings

Gate SecretText guidance to BC23 and clarify that the collectible-error sample intentionally emits a message-only blocking aggregate.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: e05a43e7-6448-4d67-9c73-798523f5d945

---------

Co-authored-by: Jesper Schulz-Wedde <jesper.schulzwedde@microsoft.com>
2026-07-14 11:26:16 +02:00
Jesper Schulz-Wedde
3aa3581f95
Add testing knowledge: UI handlers, table relations, asserterror, fixtures (P1+P2) (#62)
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* Add testing knowledge: UI handlers, table relations, asserterror, fixtures (P1+P2)

Six BC-specific testing-domain knowledge articles in community/knowledge/testing/, each with .good.al/.bad.al samples:

- ui-calls-require-test-handlers
- tablerelation-requires-prerequisite-records
- handlers-enqueue-never-assert
- handlerfunctions-attribute-must-match-ui-path
- asserterror-needs-expectederror-and-code
- use-library-codeunits-for-test-fixtures

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Move testing knowledge from community to microsoft layer

Relocates the six P1+P2 testing-domain articles (18 files: .md + .good.al + .bad.al each) from community/knowledge/testing/ to microsoft/knowledge/testing/ per maintainer request. Pure git-mv rename; no content or frontmatter changes.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address review: merge handler articles, adopt enqueue-driven pattern

Respond to @nikolakukrika's review on #62:

- Merge ui-calls-require-test-handlers, handlerfunctions-attribute-must-match-ui-path
  and handlers-enqueue-never-assert into a single ui-handlers-in-tests article.
- Adopt the enqueue-from-test / dequeue-and-assert-in-handler pattern using
  Assert.ExpectedConfirm/ExpectedMessage (substring match), with Initialize()
  clearing LibraryVariableStorage and AssertEmpty() proving exact call counts.
- asserterror sample now uses Assert.ExpectedTestFieldError + FieldCaption instead
  of hardcoded message/code; article text points to the library helpers.
- Drop the tablerelation article and fold its test-relevant ordering point
  (relations checked on Validate/Insert(true); build parents first) into
  use-library-codeunits-for-test-fixtures.

Article count 198 -> 195.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Jesper Schulz-Wedde <jesper.schulzwedde@microsoft.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-07-09 10:24:51 +02:00
Volodymyr Dvernytskyi
4ce7d816cc Transaction and error handling in BC AL - new knowledge articles 2026-04-23 20:58:02 +03:00