# STATUS — eval phase

Commit: c6086a4

## Gate verification

### D1 — arithmetic (precedence, parens, unary minus)

Command: `python -m unittest calc.test_evaluator.TestArithmetic -v`
Expected: 5 tests pass

Observed:
```
test_add_mul_precedence (calc.test_evaluator.TestArithmetic) ... ok    # 2+3*4=14
test_left_associative_subtraction (calc.test_evaluator.TestArithmetic) ... ok    # 8-3-2=3
test_parens (calc.test_evaluator.TestArithmetic) ... ok    # (2+3)*4=20
test_unary_minus_leading (calc.test_evaluator.TestArithmetic) ... ok    # -2+5=3
test_unary_minus_rhs (calc.test_evaluator.TestArithmetic) ... ok    # 2*-3=-6
PASS
```

### D2 — division (true division + EvalError on zero)

Command: `python -m unittest calc.test_evaluator.TestDivision -v`
Expected: 4 tests pass, ZeroDivisionError never escapes

Observed:
```
test_divide_by_zero_expression_raises_eval_error ... ok
test_divide_by_zero_raises_eval_error ... ok
test_no_bare_zero_division_error ... ok
test_true_division ... ok   # 7/2=3.5
PASS
```

### D3 — result type (whole → int, fractional → float)

Command: `python -m unittest calc.test_evaluator.TestResultType -v`
Expected: 4 tests pass

Observed:
```
test_fractional_division_returns_float ... ok   # 7/2 is float
test_integer_add_returns_int ... ok
test_integer_mul_returns_int ... ok
test_whole_division_returns_int ... ok   # 4/2 is int
PASS
```

### D4 — CLI

Commands and observed outputs:

| Command | Expected | Observed | Exit |
|---|---|---|---|
| `python calc.py "2+3*4"` | `14` | `14` | 0 |
| `python calc.py "(2+3)*4"` | `20` | `20` | 0 |
| `python calc.py "7/2"` | `3.5` | `3.5` | 0 |
| `python calc.py "4/2"` | `2` | `2` | 0 |
| `python calc.py "1/0"` | error→stderr, exit≠0 | `Error: Division by zero` (stderr), stdout empty | 1 |
| `python calc.py "1 +"` | error→stderr, exit≠0 | `Error: Unexpected end of input` (stderr) | 1 |

### D5 — whole suite + no regression

Command: `python -m unittest -q`
Expected: all tests pass, 0 failures

Observed:
```
Ran 59 tests in 0.231s
OK
```

Prior lex + parse tests: included in the 59, all pass.

## DONE