test(e2e): add DatasetAdapter base interface + capability dataclass

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

tests/e2e/test_dataset_base.py

@@ -0,0 +1,63 @@
+"""Tests for DatasetAdapter base contract."""
+
+import pytest
+
+from gps_denied.testing.datasets.base import (
+    DatasetAdapter,
+    DatasetCapabilities,
+    DatasetFrame,
+    DatasetIMU,
+    DatasetPose,
+    DatasetNotAvailableError,
+    PlatformClass,
+)
+
+
+def test_capabilities_defaults():
+    cap = DatasetCapabilities(
+        has_raw_imu=False,
+        has_rtk_gt=False,
+        has_loop_closures=False,
+        platform_class=PlatformClass.FIXED_WING,
+    )
+    assert cap.has_raw_imu is False
+    assert cap.platform_class == PlatformClass.FIXED_WING
+
+
+def test_adapter_is_abstract():
+    with pytest.raises(TypeError):
+        DatasetAdapter()  # type: ignore[abstract]
+
+
+def test_dataset_not_available_error_is_exception():
+    assert issubclass(DatasetNotAvailableError, Exception)
+
+
+def test_dataset_frame_dataclass_fields():
+    frame = DatasetFrame(
+        frame_idx=0,
+        timestamp_ns=1_000_000_000,
+        image_path="/tmp/x.jpg",
+    )
+    assert frame.frame_idx == 0
+    assert frame.timestamp_ns == 1_000_000_000
+
+
+def test_dataset_imu_dataclass_fields():
+    imu = DatasetIMU(
+        timestamp_ns=1_000_000_000,
+        accel=(0.0, 0.0, -9.81),
+        gyro=(0.0, 0.0, 0.0),
+    )
+    assert imu.accel == (0.0, 0.0, -9.81)
+
+
+def test_dataset_pose_dataclass_fields():
+    pose = DatasetPose(
+        timestamp_ns=1_000_000_000,
+        lat=49.0,
+        lon=32.0,
+        alt=100.0,
+        qx=0.0, qy=0.0, qz=0.0, qw=1.0,
+    )
+    assert pose.lat == 49.0