"""Tests for the LayoutInspector module."""
from PySide6.QtWidgets import QLabel, QVBoxLayout, QWidget
from qt_mcp.probe.layout_inspector import LayoutInspector
from qt_mcp.probe.ref_registry import RefRegistry
def test_layout_check_basic(qapp, sample_window):
registry = RefRegistry()
inspector = LayoutInspector(registry)
result = inspector.layout_check()
assert result["scanned"] > 0
assert isinstance(result["issues"], list)
def test_layout_check_no_layout_warning(qapp, sample_window):
"""NoLayoutContainer in sample_app should trigger a no_layout warning."""
registry = RefRegistry()
inspector = LayoutInspector(registry)
result = inspector.layout_check()
no_layout_issues = [
i
for i in result["issues"]
if i["type"] == "no_layout" and i["object_name"] == "NoLayoutContainer"
]
assert len(no_layout_issues) >= 1
assert no_layout_issues[0]["severity"] == "warning"
def test_layout_check_overlapping_siblings(qapp, sample_window):
"""ChildA and ChildB in NoLayoutContainer overlap and should be flagged."""
registry = RefRegistry()
inspector = LayoutInspector(registry)
result = inspector.layout_check()
overlap_issues = [i for i in result["issues"] if i["type"] == "overlapping_siblings"]
# ChildA and ChildB have same geometry, should overlap
assert len(overlap_issues) >= 1
def test_layout_check_zero_size(qapp):
"""A visible widget with 0x0 geometry should be flagged."""
w = QWidget()
w.setObjectName("ZeroWidget")
w.setFixedSize(0, 0)
w.show()
qapp.processEvents()
registry = RefRegistry()
inspector = LayoutInspector(registry)
result = inspector.layout_check()
zero_issues = [
i for i in result["issues"] if i["type"] == "zero_size" and i["object_name"] == "ZeroWidget"
]
assert len(zero_issues) == 1
assert zero_issues[0]["severity"] == "error"
w.close()
qapp.processEvents()
def test_layout_check_healthy_layout(qapp):
"""A properly laid-out widget should produce no issues."""
w = QWidget()
w.setObjectName("HealthyWidget")
layout = QVBoxLayout()
w.setLayout(layout)
label = QLabel("Hello")
label.setObjectName("HealthyLabel")
layout.addWidget(label)
w.resize(200, 100)
w.show()
qapp.processEvents()
registry = RefRegistry()
inspector = LayoutInspector(registry)
result = inspector.layout_check()
# Filter issues to only our test widgets
our_issues = [
i for i in result["issues"] if i["object_name"] in ("HealthyWidget", "HealthyLabel")
]
assert our_issues == []
w.close()
qapp.processEvents()
def test_layout_check_text_truncation(qapp):
"""A label with text wider than its width should be flagged."""
label = QLabel("A" * 200) # Very long text
label.setObjectName("TruncatedLabel")
label.setFixedWidth(20) # Very narrow
label.show()
qapp.processEvents()
registry = RefRegistry()
inspector = LayoutInspector(registry)
result = inspector.layout_check()
truncated = [
i
for i in result["issues"]
if i["type"] == "text_truncated" and i["object_name"] == "TruncatedLabel"
]
assert len(truncated) == 1
assert truncated[0]["severity"] == "warning"
label.close()
qapp.processEvents()
def test_layout_check_skips_hidden(qapp):
"""Hidden widgets should not be scanned."""
w = QWidget()
w.setObjectName("HiddenParent")
w.hide()
qapp.processEvents()
registry = RefRegistry()
inspector = LayoutInspector(registry)
result = inspector.layout_check()
our_issues = [i for i in result["issues"] if i["object_name"] == "HiddenParent"]
assert our_issues == []
w.close()
qapp.processEvents()
def test_layout_check_no_app():
"""Should return empty results when no QApplication."""
# This test just verifies the guard — in the test suite QApplication
# always exists, so we test the structure instead
registry = RefRegistry()
inspector = LayoutInspector(registry)
result = inspector.layout_check()
assert "issues" in result
assert "scanned" in result
