CameraITS: Added test for some metadata sanity checking

Change-Id: I4e75734b220ac093955ce3b6eb5bc7daed5cb22d

1 files changed, 93 insertions, 0 deletions

diff --git a/apps/CameraITS/tests/scene0/test_metadata.py b/apps/CameraITS/tests/scene0/test_metadata.py
new file mode 100644
index 0000000..501e2a1
--- /dev/null
+++ b/apps/CameraITS/tests/scene0/test_metadata.py
@@ -0,0 +1,93 @@
+# Copyright 2014 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import its.image
+import its.device
+import its.objects
+import its.target
+import os.path
+import pprint
+
+def main():
+    """Test the validity of some metadata entries.
+
+    Looks at capture results and at the camera characteristics objects.
+    """
+    global md, props, failed
+    NAME = os.path.basename(__file__).split(".")[0]
+
+    with its.device.ItsSession() as cam:
+        props = cam.get_camera_properties()
+        req = its.objects.manual_capture_request(100, 10*1000*1000)
+        cap = cam.do_capture(req, cam.CAP_YUV)
+        md = cap["metadata"]
+
+    # Test: hardware level should be a valid value.
+    check('props.has_key("android.info.supportedHardwareLevel")')
+    check('props["android.info.supportedHardwareLevel"] is not None')
+    check('props["android.info.supportedHardwareLevel"] in [0,1]')
+    full = getval('props["android.info.supportedHardwareLevel"]') == 1
+
+    # Test: rollingShutterSkew, frameDuration, and
+    # availableMinFrameDurations tags must all be present, and
+    # rollingShutterSkew must be greater than zero and smaller than all
+    # of the possible frame durations.
+    check('md.has_key("android.sensor.frameDuration")')
+    check('md["android.sensor.frameDuration"] is not None')
+    check('md.has_key("android.sensor.rollingShutterSkew")')
+    check('md["android.sensor.rollingShutterSkew"] is not None')
+    check('props.has_key("android.scaler.availableMinFrameDurations")')
+    check('props["android.scaler.availableMinFrameDurations"] is not None')
+    check('md["android.sensor.frameDuration"] > ' \
+          'md["android.sensor.rollingShutterSkew"] > 0')
+    check('all([a["duration"] > md["android.sensor.rollingShutterSkew"] > 0 ' \
+               'for a in props["android.scaler.availableMinFrameDurations"]])')
+
+    # Test: timestampSource must be a valid value.
+    check('props.has_key("android.sensor.info.timestampSource")')
+    check('props["android.sensor.info.timestampSource"] is not None')
+    check('props["android.sensor.info.timestampSource"] in [0,1]')
+
+    # Test: croppingType must be a valid value, and for full devices, it
+    # must be FREEFORM=1.
+    check('props.has_key("android.scaler.croppingType")')
+    check('props["android.scaler.croppingType"] is not None')
+    check('props["android.scaler.croppingType"] in [0,1]')
+    if full:
+        check('props["android.scaler.croppingType"] == 1')
+
+    assert(not failed)
+
+def getval(expr, default=None):
+    try:
+        return eval(expr)
+    except:
+        return default
+
+failed = False
+def check(expr):
+    global md, props, failed
+    try:
+        if eval(expr):
+            print "Passed>", expr
+        else:
+            print "Failed>>", expr
+            failed = True
+    except:
+        print "Failed>>", expr
+        failed = True
+
+if __name__ == '__main__':
+    main()
+