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- 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>
30 lines
2 KiB
Markdown
30 lines
2 KiB
Markdown
---
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bc-version: [all]
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domain: testing
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keywords: [confirm, confirmhandler, strsubstno, placeholder, question, substitution]
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technologies: [al]
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countries: [w1]
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application-area: [all]
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---
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# Build the Confirm message with StrSubstNo, or a ConfirmHandler sees the raw template
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## Description
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`Confirm`'s placeholder-substitution overload — `Confirm('text %1', false, Value)` — substitutes the placeholder only for the dialog a real user sees. Inside a `[ConfirmHandler]`, the `Question` parameter received is the literal, unsubstituted template string (`'text %1'`), not the value-filled text. This is a reported platform defect (microsoft/ALAppExtensions#23935), not documented or intended behavior — treat it as a known, unconfirmed-fix issue rather than a permanent platform rule; if it is ever fixed, this workaround becomes unnecessary rather than wrong. Notably, `Message`/`[MessageHandler]` substitutes correctly — only `Confirm` is affected, which is itself evidence this is a bug rather than a deliberate design choice. A test that asserts `Question` against the expected substituted message either fails outright or silently checks the wrong thing.
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## Best Practice
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When a `ConfirmHandler` needs to assert on the actual message text, build the string with `StrSubstNo(Text, Value)` in the production code first, and pass the already-substituted string to `Confirm()` with no further placeholder arguments.
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See sample: `confirm-needs-strsubstno-before-confirmhandler-sees-substituted-text.good.al`.
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## Anti Pattern
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Calling `Confirm('text %1', false, Value)` and then asserting the substituted text against `Question` inside a `[ConfirmHandler]`. `Question` holds the raw `'text %1'` template, so the assertion never matches the intended message.
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See sample: `confirm-needs-strsubstno-before-confirmhandler-sees-substituted-text.bad.al`.
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## Source
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Reported by Luc van Vugt: https://github.com/microsoft/ALAppExtensions/issues/23935 — an internal Microsoft bug was filed from that report; the issue's fix status is not confirmed as of this writing.
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