Add test stub

qupulse/program/__init__.py

@@ -6,9 +6,10 @@
 
 import numpy as np
 
-from qupulse._program.waveforms import Waveform
+from qupulse import ChannelID
+from qupulse.program.waveforms import Waveform
 from qupulse.utils.types import MeasurementWindow, TimeType
-from qupulse._program.volatile import VolatileRepetitionCount
+from qupulse.program.volatile import VolatileRepetitionCount
 from qupulse.parameter_scope import Scope
 
 from typing import Protocol, runtime_checkable
@@ -78,7 +79,7 @@ def inner_scope(self, scope: Scope) -> Scope:
         """This function is necessary to inject program builder specific parameter implementations into the build
         process."""
 
-    def hold_voltage(self, duration: HardwareTime, voltages: Mapping[str, HardwareVoltage]):
+    def hold_voltage(self, duration: HardwareTime, voltages: Mapping[ChannelID, HardwareVoltage]):
         """Supports dynamic i.e. for loop generated offsets and duration"""
 
     # further specialized commandos like play_harmoic might be added here

qupulse/program/decadac.py

@@ -1,5 +1,5 @@
 from dataclasses import dataclass
-from typing import Mapping, Optional, Sequence, ContextManager, Iterable
+from typing import Mapping, Optional, Sequence, ContextManager, Iterable, Tuple
 
 from qupulse import ChannelID, MeasurementWindow
 from qupulse.parameter_scope import Scope
@@ -13,8 +13,18 @@ class DecaDACASCIIProgram:
 
 
 class DecaDACASCIIBuilder:
-    def __init__(self):
-        pass
+    def __init__(self, channels: Tuple[Optional[ChannelID], ...]):
+        assert len(channels) in (20,), "Only 5 slots are supported for now"
+        self._name_to_idx = {idx: name for idx, name in enumerate(channels) if name is not None}
+        self._idx_to_name = channels
+
+    @classmethod
+    def from_channel_dict(cls, channels: Mapping[ChannelID, int]):
+        assert len(set(channels.values())) == len(channels), "no duplicate target channels"
+        channel_list = [None] * 20
+        for ch_name, ch_idx in channels.items():
+            channel_list[ch_idx] = ch_name
+        return cls(tuple(channel_list))
 
     def inner_scope(self, scope: Scope) -> Scope:
         """This function is necessary to inject program builder specific parameter implementations into the build

tests/program/decadac_tests.py

@@ -0,0 +1,15 @@
+from unittest import TestCase
+
+from qupulse.pulses import *
+from qupulse.program.decadac import *
+
+
+class DecaDacProgramBuilderTests(TestCase):
+    def test_single_channel_ramp(self):
+        hold = ConstantPT(10**6, {'a': '-1. + idx * 0.01'})
+        ramp = hold.with_iteration('idx', 200)
+
+        program_builder = DecaDACASCIIBuilder.from_channel_dict({'a': 0})
+        program = ramp.create_program(program_builder=program_builder)
+
+        raise NotImplementedError('the rest of the owl')