#452 Data Generator private package to generate test data from Dictionaries and Schemas - #454
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joneubank wants to merge 10 commits into
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#452 Data Generator private package to generate test data from Dictionaries and Schemas#454joneubank wants to merge 10 commits into
joneubank wants to merge 10 commits into
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Fully implement typed value generation for boolean, integer, number, and string schema fields, with deterministic seeding, conditional restriction resolution, and conflict reporting when restrictions cannot be reconciled. - Add `FieldGeneratorResult<T>`, `FieldGeneratorFailureData<T>`, `FieldGeneratorOptions`, and `FieldGenerator<TField>` types - Export `testConditionalRestriction` from `@overture-stack/lectern-validation` - Add `@overture-stack/lectern-validation` as a dependency of `data-generator` - Add test suites for `fieldGenerators`, `resolveRestrictions`, and `restrictionReducers` (93 tests passing)
- reorganizes generation files into /fields and /records dirs - includes field generation order based on conditional restriction relationships - includes ability to provide values from a parent entity to help satisfy FK restrictions
…is not required Based on the presence of a `required:true` restriction. If required, always return a value. If not required, return an empty (undefined) value at a default 25% rate. - the rate can be specified in the generator options. rate will be between 0 and 1, with 0 being never empty and 1 being always empty. - record generator also gets the emptyRate option and this is threaded into the field generators - all tests are updated to have NO_EMPTY (emptyRate: 0) added to their generators to ensure they are testing a generated value and not a potentially empty result - empty results are determinsitic based on seed
- Fix Set mutation in extractFieldDependencies: build filtered set instead of deleting from Set during iteration - Fix cycle detection in resolveGenerationOrder: only lump genuinely cyclic fields in fallback tier; independent zero-in-degree fields now correctly get their own tier - Optimize resolveGenerationOrder to O(N+E) using a ready queue (Kahn's algorithm as intended) - Replace fc.sample with lightweight xorshift32 seeded draw in resolveForeignKeyOverrides - Rename mergedRange/effectiveRange to validatedRange/fallbackRange in resolveNumericConstraints - Extract buildRequiredEmptyConflict helper and apply required+empty conflict check to all field generators (was silently ignored for numeric and string fields) - Guard resolveArrayLength against min>max when integer exclusive bounds produce an impossible range - Narrow reduceRegex return type from RestrictionRegex|undefined to string|undefined; simplify filterCodeListByRegex accordingly - Add tests for cycle+independent field interaction and impossible array length exclusive bounds
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Summary
Adds a private package for Lectern data-generator which can generate data that conforms to a Lectern dictionary or schema.
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