# Breakpoint UI Debug Test

## What We Know

✅ **The interpreter breakpoint system WORKS** - Programmatic test confirmed it
❓ **The curses UI may not be setting/passing breakpoints correctly**

## Updated Debug Test

I've added debug logging to both the interpreter AND the curses UI.

### Run This Test:

```bash
DEBUG_BP=1 python3 mbasic --ui curses test_continue.bas 2> /tmp/full_debug.log
```

Then:
1. When IDE opens, press 'b' to set a breakpoint on line 10
2. Look at `/tmp/full_debug.log` - you should see: `[UI] Added breakpoint to line 10`
3. Press Ctrl+R to run
4. Look at `/tmp/full_debug.log` again
5. Exit with Ctrl+Q
6. Check the log: `cat /tmp/full_debug.log`

### What to Look For in Debug Log

#### Scenario 1: Breakpoint Added Successfully
```
[UI] Added breakpoint to line 20, now: {20}
```
✓ Breakpoint was added to backend.breakpoints

#### Scenario 2: Breakpoint NOT Running
```
[UI] Added breakpoint to line 20, now: {20}
[UI] About to run with breakpoints: set()
```
❌ Breakpoint was added but interpreter.breakpoints is empty!
- This means line 592 `self.interpreter.breakpoints = self.breakpoints.copy()` didn't work
- OR `self.breakpoints` is a different object

#### Scenario 3: Breakpoint Running, Not Hitting
```
[UI] Added breakpoint to line 20, now: {20}
[UI] About to run with breakpoints: {20}
[BP_CHECK] Line 10: breakpoints={20}, step_mode=False, has_callback=True
[BP_CHECK] Line 20: breakpoints={20}, step_mode=False, has_callback=True
(no [BP_HIT])
```
❌ Interpreter has breakpoints but condition isn't triggering
- This would be very strange since programmatic test worked

#### Scenario 4: Everything Works!
```
[UI] Added breakpoint to line 20, now: {20}
[UI] About to run with breakpoints: {20}
[BP_CHECK] Line 10: breakpoints={20}, step_mode=False, has_callback=True
[BP_CHECK] Line 20: breakpoints={20}, step_mode=False, has_callback=True
[BP_HIT] Calling breakpoint callback for line 20
[BP_RESULT] Callback returned: True
```
✓ Everything working perfectly!

## Manual Test Steps

1. **Open terminal and run:**
   ```bash
   DEBUG_BP=1 python3 mbasic --ui curses test_continue.bas 2> /tmp/full_debug.log &
   MBASIC_PID=$!
   ```

2. **In the IDE:**
   - Move cursor to line 20
   - Press 'b' (should see ● appear)
   - Press Ctrl+R to run
   - Press Ctrl+Q to quit

3. **Check the debug log:**
   ```bash
   cat /tmp/full_debug.log
   ```

4. **Analyze:**
   - Did you see `[UI] Added breakpoint to line 20`?
   - Did you see `[UI] About to run with breakpoints: {20}`?
   - Did you see `[BP_HIT]`?

## Quick Version

Just tell me: **Did the ● symbol appear when you pressed 'b'?**

- If YES → Breakpoints are being set in the UI
- If NO → The 'b' key handler isn't working

And: **Did you see the program output in the output window?**

- If YES → Program ran
- If NO → Program didn't run or crashed

This will help narrow down where the problem is!
