Refactor GF3 L1A to L2 pipeline

tests/test_rpc.py

@@ -0,0 +1,18 @@
+import unittest
+from pathlib import Path
+
+from gf3_l1a2l2.rpc import read_rpc_metadata
+
+
+class RpcTests(unittest.TestCase):
+    def test_reads_rpc_metadata(self):
+        path = Path(__file__).parent / "fixtures" / "sample.rpb"
+        metadata = read_rpc_metadata(path)
+
+        self.assertEqual(metadata["ERR_BIAS"], "-1")
+        self.assertEqual(metadata["LINE_OFF"], "10")
+        self.assertEqual(metadata["LINE_NUM_COEFF"], "1 2 3")
+
+
+if __name__ == "__main__":
+    unittest.main()