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SYS-REQ-012SystemReview

When ParseBoolean receives a valid raw boolean token, the parser shall return the corresponding Go bool value.

PriorityshallTypeguaranteeCategoryfunctionalComponentparserAssuranceEFindingsHighworst open

Specification

The requirement exactly as authored — its complete prose text and, where present, the formal FRETish sentence it compiles to.

Description

When ParseBoolean receives a valid raw boolean token, the parser shall return the corresponding Go bool value.

FRETish formula
the parser shall always satisfy !raw_boolean_literal_is_valid | returns_parseboolean_value

Rationale & tags

Why this requirement exists, and how it is categorised.

ParseBoolean success on valid tokens should be specified independently from the invalid-token error path.

decompositionparseboolean

Verification & provenance

How this requirement was checked: the review trail, edit history, and the machine-analysis status terms (each ⓘ explains what it means).

Assurance levelE
Formalizationvalid
Realizabilityrealizable
Vacuitychecked_ok
Strategyfretish

Review

Status
approved
Reviewer
human:leonidbugaev
Reviewed
Apr 23, 2026, 00:00 UTC

History

Created
Apr 13, 2026, 17:21 UTC · human:cli
Modified
Jul 26, 2026, 14:54 UTC · human:cli

Obligations

What this requirement must witness to be considered satisfied — the required evidence, and the tests that discharge each one.

1 obligation · 1 discharged

Browse the catalogue
Discharged

Output identical regardless of collection ordering or runtime conditions.

Worst case if violatedMedium

ParseBoolean returns different bools across calls on the same true/false token, inverting downstream branching logic.

Discharging evidence1/1 required witnessed
  • nominalrequiredpresent
    Covered by 1 test

Formula evidence

The formal formula behind this requirement, the variables it is written over, and the tests that exercise it (each term is explained inline).

FRETish formula

the parser shall always satisfy !raw_boolean_literal_is_valid | returns_parseboolean_value

Variables

NameTypeDirectionDescription
raw_boolean_literal_is_valid—True when ParseBoolean receives a valid boolean literal token.
returns_parseboolean_value—True when ParseBoolean returns the corresponding Go bool value.

Witnesses· 3 scenarios total

  • FuzzParseBoolNative
    fuzz_native_test.go:168
  • TestMCDC_SYS_REQ_012_Row1_TriggerFalse
    mcdc_spec_witnesses_test.go:267exercises 1 condition scenario
  • TestAdditionalFuzzHarnessCoverage
    mcdc_supplement_test.go:425
  • TestObligation_SYS_REQ_012
    obligation_evidence_test.go:189
  • TestParseBoolean
    parser_test.go:2216exercises 2 condition scenarios
  • TestOracleParseBoolean
    reference_oracle_test.go:881

Its place

This requirement shown inside its trace neighbourhood — the parents it satisfies, the code and tests attached to it, and its findings.

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Trace evidence

The concrete artifacts linked to this requirement — implementing code, verifying tests, documents, and the findings raised against it.

Impact

Blast radius — if you change this requirement, what else may need re-checking, and what it in turn depends on.

If you change this

Requirements
0
Files
2
Tests
6
At-risk contracts
0

Files to re-check (2)

  • fuzz.gofuzz.go
  • parser.goparser.go

Tests to re-run (6)

  • fuzz_native_test.gofuzz_native_test.go
  • mcdc_spec_witnesses_test.gomcdc_spec_witnesses_test.go
  • mcdc_supplement_test.gomcdc_supplement_test.go
  • obligation_evidence_test.goobligation_evidence_test.go
  • parser_test.goparser_test.go
  • reference_oracle_test.goreference_oracle_test.go

What this rests on

Parent requirements (1)

Discussions

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