artifacts: add calculators/ — the 30 built calculators (5/variant) + machine-docs + git logs

2026-06-16 15:39:42 +00:00
parent 64bc360fc0
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--- a/calculators/builder-adversary/run-02/machine-docs/REVIEW-eval.md
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+# REVIEW-eval — Adversary Verdicts
+
+## Legend
+- PASS @<ts> — gate accepted, evidence below
+- FAIL — repro steps below, Builder must fix
+
+---
+
+## D1 — arithmetic
+**PASS @2026-06-15T00:54Z**
+
+Cold run — all 5 DoD-mandated cases:
+```
+'2+3*4'    -> 14   expected 14   OK
+'(2+3)*4'  -> 20   expected 20   OK
+'8-3-2'    -> 3    expected 3    OK
+'-2+5'     -> 3    expected 3    OK
+'2*-3'     -> -6   expected -6   OK
+```
+
+Extra break-it probes (all correct):
+```
+'2+3+4'       -> 9    OK  (left-assoc addition)
+'10-2-3'      -> 5    OK  (left-assoc subtraction)
+'2*3*4'       -> 24   OK  (left-assoc multiplication)
+'--5'         -> 5    OK  (double unary minus)
+'(-3)*(-2)'   -> 6    OK  (unary in parens)
+'(1+2)*(3+4)' -> 21   OK  (nested parens)
+'0*100'       -> 0    OK
+```
+
+`python -m unittest calc.test_evaluator.TestArithmetic -q` — 0 failures.
+
+---
+
+## D2 — division
+**PASS @2026-06-15T00:54Z**
+
+Cold run:
+```
+'7/2'      -> 3.5        OK  (true division)
+'1/0'      -> EvalError: division by zero  OK  (not ZeroDivisionError)
+'5/(3-3)'  -> EvalError: division by zero  OK  (dynamic zero denominator)
+```
+
+Implementation: explicit `if right == 0: raise EvalError(...)` at `calc/evaluator.py:18-21` — `ZeroDivisionError` cannot escape the API boundary.
+
+`python -m unittest calc.test_evaluator.TestDivision -q` — 0 failures.
+
+---
+
+## D3 — result type
+**PASS @2026-06-15T00:54Z**
+
+Cold run — CLI output (stdout only, no stderr):
+```
+'4/2'    -> '2'                      OK  (whole float -> int display)
+'9/3'    -> '3'                      OK  (whole float -> int display)
+'0/5'    -> '0'                      OK  (zero result -> int display)
+'7/2'    -> '3.5'                    OK  (non-whole)
+'1/3'    -> '0.3333333333333333'     OK  (non-whole)
+'22/7'   -> '3.142857142857143'      OK  (non-whole)
+```
+
+Rule confirmed: `_fmt()` in `calc.py` calls `value.is_integer()` on floats; whole → cast to int for display.
+
+`python -m unittest calc.test_evaluator.TestResultType -q` — 0 failures.
+
+---
+
+## D4 — CLI
+**PASS @2026-06-15T00:54Z**
+
+Cold run — all DoD cases:
+```
+python calc.py "2+3*4"    -> stdout='14'   stderr=''                  exit=0  OK
+python calc.py "(2+3)*4"  -> stdout='20'   stderr=''                  exit=0  OK
+python calc.py "7/2"      -> stdout='3.5'  stderr=''                  exit=0  exit=0  OK
+python calc.py "4/2"      -> stdout='2'    stderr=''                  exit=0  OK
+python calc.py "1/0"      -> stdout=''     stderr='error: division by zero'  exit=1  OK
+python calc.py "1 +"      -> stdout=''     stderr='error: unexpected token ...'  exit=1  OK
+```
+
+Additional probes:
+- No-arg: stderr='usage: calc.py <expression>', exit=1  OK
+- Empty string `""`: stderr='error: empty expression', exit=1  OK
+- No traceback in any error case (grepped for "Traceback" — not found)  OK
+- Errors go to stderr, stdout is empty on error (verified via redirect)  OK
+
+---
+
+## D5 — tests green + end-to-end
+**PASS @2026-06-15T00:54Z**
+
+Cold run:
+```
+$ python -m unittest -q
+----------------------------------------------------------------------
+Ran 68 tests in 0.210s
+
+OK
+```
+
+Exit code 0. 68/68 pass (24 lex + 22 parse + 22 eval, including 6 CLI subprocess tests).
+
+No regression in prior lex/parse tests.
+
+---
+
+## Summary
+
+| Gate | Verdict |
+|------|---------|
+| D1 — arithmetic | **PASS** |
+| D2 — division | **PASS** |
+| D3 — result type | **PASS** |
+| D4 — CLI | **PASS** |
+| D5 — tests green | **PASS** |
+
+All gates PASS. No findings. Builder may write "## DONE" to STATUS-eval.md.