Merge pull request #66 from Mehanik/feature/schematic-component-field-inspection
feat: schematic component field inspection and label repositioning
This commit is contained in:
mixelpixx
369
python/tests/test_schematic_component_fields.py
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369
python/tests/test_schematic_component_fields.py
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"""
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Tests for get_schematic_component and edit_schematic_component fieldPositions support.
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"""
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import re
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import sys
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import shutil
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import tempfile
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from pathlib import Path
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import pytest
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# Ensure python/ directory is on path so kicad_interface can be imported
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sys.path.insert(0, str(Path(__file__).parent.parent))
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sys.path.insert(0, str(Path(__file__).parent.parent.parent / "python"))
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# ---------------------------------------------------------------------------
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# Helpers shared across tests
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# ---------------------------------------------------------------------------
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TEMPLATE_SCH = Path(__file__).parent.parent / "templates" / "empty.kicad_sch"
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# Minimal placed-symbol block we can embed into a schematic for testing
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PLACED_RESISTOR_BLOCK = """\
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(symbol (lib_id "Device:R") (at 50 50 0) (unit 1)
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(in_bom yes) (on_board yes) (dnp no)
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(uuid "aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee")
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(property "Reference" "R1" (at 51.27 47.46 0)
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(effects (font (size 1.27 1.27)))
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)
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(property "Value" "10k" (at 51.27 52.54 0)
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(effects (font (size 1.27 1.27)))
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)
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(property "Footprint" "Resistor_SMD:R_0603_1608Metric" (at 50 50 0)
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(effects (font (size 1.27 1.27)) hide)
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)
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(property "Datasheet" "~" (at 50 50 0)
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(effects (font (size 1.27 1.27)) hide)
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)
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)
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"""
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def _make_test_schematic(tmp_dir: Path, extra_block: str = "") -> Path:
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"""Copy empty.kicad_sch into tmp_dir, optionally appending a placed symbol block."""
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dest = tmp_dir / "test.kicad_sch"
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src_content = TEMPLATE_SCH.read_text(encoding="utf-8")
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# Insert placed symbol block before the closing paren of the top-level form
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if extra_block:
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src_content = src_content.rstrip()
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if src_content.endswith(")"):
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src_content = src_content[:-1] + "\n" + extra_block + ")\n"
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dest.write_text(src_content, encoding="utf-8")
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return dest
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# ---------------------------------------------------------------------------
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# Unit tests – regex / parsing logic only (no file I/O, no KiCAD imports)
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# ---------------------------------------------------------------------------
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@pytest.mark.unit
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class TestGetSchematicComponentParsing:
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"""Unit tests for the regex logic used by _handle_get_schematic_component."""
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def _parse_fields(self, block_text: str) -> dict:
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"""Mirrors the regex used in _handle_get_schematic_component."""
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prop_pattern = re.compile(
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r'\(property\s+"([^"]*)"\s+"([^"]*)"\s+\(at\s+([\d\.\-]+)\s+([\d\.\-]+)\s+([\d\.\-]+)\s*\)'
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)
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fields = {}
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for m in prop_pattern.finditer(block_text):
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name, value, x, y, angle = (
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m.group(1),
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m.group(2),
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m.group(3),
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m.group(4),
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m.group(5),
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)
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fields[name] = {
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"value": value,
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"x": float(x),
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"y": float(y),
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"angle": float(angle),
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}
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return fields
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def _parse_comp_pos(self, block_text: str):
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"""Mirrors the regex used to extract symbol position."""
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m = re.search(
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r'\(symbol\s+\(lib_id\s+"[^"]*"\s*\)\s+\(at\s+([\d\.\-]+)\s+([\d\.\-]+)\s+([\d\.\-]+)\s*\)',
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block_text,
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)
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if m:
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return {
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"x": float(m.group(1)),
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"y": float(m.group(2)),
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"angle": float(m.group(3)),
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}
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return None
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def test_parses_reference_field(self):
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fields = self._parse_fields(PLACED_RESISTOR_BLOCK)
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assert "Reference" in fields
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assert fields["Reference"]["value"] == "R1"
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assert fields["Reference"]["x"] == pytest.approx(51.27)
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assert fields["Reference"]["y"] == pytest.approx(47.46)
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assert fields["Reference"]["angle"] == pytest.approx(0.0)
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def test_parses_value_field(self):
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fields = self._parse_fields(PLACED_RESISTOR_BLOCK)
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assert "Value" in fields
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assert fields["Value"]["value"] == "10k"
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assert fields["Value"]["x"] == pytest.approx(51.27)
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assert fields["Value"]["y"] == pytest.approx(52.54)
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def test_parses_all_four_standard_fields(self):
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fields = self._parse_fields(PLACED_RESISTOR_BLOCK)
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assert set(fields.keys()) >= {"Reference", "Value", "Footprint", "Datasheet"}
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def test_parses_component_position(self):
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pos = self._parse_comp_pos(PLACED_RESISTOR_BLOCK)
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assert pos is not None
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assert pos["x"] == pytest.approx(50.0)
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assert pos["y"] == pytest.approx(50.0)
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assert pos["angle"] == pytest.approx(0.0)
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def test_field_position_regex_replaces_correctly(self):
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"""Mirrors the regex used in _handle_edit_schematic_component for fieldPositions."""
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field_name = "Reference"
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new_x, new_y, new_angle = 99.0, 88.0, 0
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block = PLACED_RESISTOR_BLOCK
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block = re.sub(
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r'(\(property\s+"'
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+ re.escape(field_name)
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+ r'"\s+"[^"]*"\s+)\(at\s+[\d\.\-]+\s+[\d\.\-]+\s+[\d\.\-]+\s*\)',
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rf"\1(at {new_x} {new_y} {new_angle})",
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block,
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)
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fields = self._parse_fields(block)
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assert fields["Reference"]["x"] == pytest.approx(99.0)
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assert fields["Reference"]["y"] == pytest.approx(88.0)
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# Value should be unchanged
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assert fields["Value"]["x"] == pytest.approx(51.27)
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def test_field_position_regex_preserves_value(self):
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"""Replacing position must not change the field value string."""
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block = PLACED_RESISTOR_BLOCK
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block = re.sub(
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r'(\(property\s+"Value"\s+"[^"]*"\s+)\(at\s+[\d\.\-]+\s+[\d\.\-]+\s+[\d\.\-]+\s*\)',
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r"\1(at 0.0 0.0 0)",
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block,
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)
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fields = self._parse_fields(block)
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assert fields["Value"]["value"] == "10k"
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# ---------------------------------------------------------------------------
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# Integration tests – real file I/O using the empty.kicad_sch template
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# ---------------------------------------------------------------------------
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@pytest.mark.integration
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class TestGetSchematicComponentIntegration:
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"""Integration tests: write a real .kicad_sch and call the handler."""
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@pytest.fixture
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def sch_with_r1(self, tmp_path):
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return _make_test_schematic(tmp_path, PLACED_RESISTOR_BLOCK)
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def _get_interface(self):
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"""Lazily import KiCADInterface to avoid pcbnew import at collection time."""
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from kicad_interface import KiCADInterface
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return KiCADInterface()
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def test_get_returns_success(self, sch_with_r1):
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iface = self._get_interface()
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result = iface.handle_command(
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"get_schematic_component",
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{
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"schematicPath": str(sch_with_r1),
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"reference": "R1",
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},
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)
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assert result["success"] is True
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def test_get_returns_correct_reference(self, sch_with_r1):
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iface = self._get_interface()
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result = iface.handle_command(
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"get_schematic_component",
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{
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"schematicPath": str(sch_with_r1),
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"reference": "R1",
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},
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)
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assert result["reference"] == "R1"
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def test_get_returns_component_position(self, sch_with_r1):
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iface = self._get_interface()
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result = iface.handle_command(
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"get_schematic_component",
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{
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"schematicPath": str(sch_with_r1),
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"reference": "R1",
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},
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)
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assert result["position"] is not None
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assert result["position"]["x"] == pytest.approx(50.0)
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assert result["position"]["y"] == pytest.approx(50.0)
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def test_get_returns_reference_field_position(self, sch_with_r1):
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iface = self._get_interface()
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result = iface.handle_command(
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"get_schematic_component",
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{
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"schematicPath": str(sch_with_r1),
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"reference": "R1",
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},
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)
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ref_field = result["fields"]["Reference"]
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assert ref_field["value"] == "R1"
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assert ref_field["x"] == pytest.approx(51.27)
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assert ref_field["y"] == pytest.approx(47.46)
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def test_get_returns_value_field(self, sch_with_r1):
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iface = self._get_interface()
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result = iface.handle_command(
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"get_schematic_component",
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{
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"schematicPath": str(sch_with_r1),
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"reference": "R1",
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},
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)
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val_field = result["fields"]["Value"]
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assert val_field["value"] == "10k"
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assert val_field["x"] == pytest.approx(51.27)
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assert val_field["y"] == pytest.approx(52.54)
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def test_get_unknown_reference_returns_failure(self, sch_with_r1):
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iface = self._get_interface()
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result = iface.handle_command(
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"get_schematic_component",
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{
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"schematicPath": str(sch_with_r1),
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"reference": "R99",
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},
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)
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assert result["success"] is False
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assert "R99" in result["message"]
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def test_get_missing_path_returns_failure(self):
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iface = self._get_interface()
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result = iface.handle_command(
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"get_schematic_component",
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{
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"reference": "R1",
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},
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)
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assert result["success"] is False
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@pytest.mark.integration
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class TestEditSchematicComponentFieldPositions:
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"""Integration tests for the new fieldPositions parameter."""
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@pytest.fixture
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def sch_with_r1(self, tmp_path):
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return _make_test_schematic(tmp_path, PLACED_RESISTOR_BLOCK)
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def _get_interface(self):
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from kicad_interface import KiCADInterface
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return KiCADInterface()
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def test_reposition_reference_label(self, sch_with_r1):
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iface = self._get_interface()
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result = iface.handle_command(
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"edit_schematic_component",
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{
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"schematicPath": str(sch_with_r1),
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"reference": "R1",
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"fieldPositions": {"Reference": {"x": 99.0, "y": 88.0, "angle": 0}},
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},
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)
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assert result["success"] is True
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# Verify the position was actually written
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get_result = iface.handle_command(
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"get_schematic_component",
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{
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"schematicPath": str(sch_with_r1),
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"reference": "R1",
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},
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)
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assert get_result["fields"]["Reference"]["x"] == pytest.approx(99.0)
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assert get_result["fields"]["Reference"]["y"] == pytest.approx(88.0)
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def test_reposition_does_not_change_value(self, sch_with_r1):
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iface = self._get_interface()
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iface.handle_command(
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"edit_schematic_component",
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{
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"schematicPath": str(sch_with_r1),
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"reference": "R1",
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"fieldPositions": {"Reference": {"x": 99.0, "y": 88.0}},
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},
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)
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get_result = iface.handle_command(
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"get_schematic_component",
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{
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"schematicPath": str(sch_with_r1),
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"reference": "R1",
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},
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)
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# Value field position must be unchanged
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assert get_result["fields"]["Value"]["x"] == pytest.approx(51.27)
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assert get_result["fields"]["Value"]["y"] == pytest.approx(52.54)
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def test_reposition_multiple_fields(self, sch_with_r1):
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iface = self._get_interface()
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result = iface.handle_command(
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"edit_schematic_component",
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{
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"schematicPath": str(sch_with_r1),
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"reference": "R1",
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"fieldPositions": {
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"Reference": {"x": 10.0, "y": 20.0, "angle": 0},
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"Value": {"x": 10.0, "y": 30.0, "angle": 0},
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},
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},
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)
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assert result["success"] is True
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get_result = iface.handle_command(
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"get_schematic_component",
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{
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"schematicPath": str(sch_with_r1),
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"reference": "R1",
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},
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)
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assert get_result["fields"]["Reference"]["x"] == pytest.approx(10.0)
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assert get_result["fields"]["Value"]["y"] == pytest.approx(30.0)
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def test_fieldpositions_alone_is_valid(self, sch_with_r1):
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"""fieldPositions without value/footprint/newReference should succeed."""
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iface = self._get_interface()
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result = iface.handle_command(
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"edit_schematic_component",
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{
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"schematicPath": str(sch_with_r1),
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"reference": "R1",
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"fieldPositions": {"Value": {"x": 55.0, "y": 60.0}},
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},
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)
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assert result["success"] is True
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def test_no_params_still_fails(self, sch_with_r1):
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"""Providing no update params should return an error."""
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iface = self._get_interface()
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result = iface.handle_command(
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"edit_schematic_component",
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{
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"schematicPath": str(sch_with_r1),
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"reference": "R1",
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},
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)
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assert result["success"] is False
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