verify that import is hashing files

tests/func/test_import.py

@@ -13,6 +13,7 @@
 from dvc.stage.exceptions import StagePathNotFoundError
 from dvc.testing.tmp_dir import make_subrepo
 from dvc.utils.fs import remove
+from dvc_data.hashfile import hash
 from dvc_data.index.index import DataIndexDirError
 
 
@@ -736,3 +737,15 @@ def test_reimport(tmp_dir, scm, dvc, erepo_dir, mocker):
     spy.reset_mock()
     dvc.imp(os.fspath(erepo_dir), "foo", "foo_imported", force=True)
     assert not spy.called
+
+
+def test_import_hash(tmp_dir, scm, dvc, erepo_dir, mocker):
+    with erepo_dir.chdir():
+        erepo_dir.dvc_gen("foo", "foo content", commit="create foo")
+
+    spy = mocker.spy(hash, "file_md5")
+
+    dvc.imp(os.fspath(erepo_dir), "foo", "foo_imported")
+
+    out_path = (tmp_dir / "foo_imported").as_posix()
+    assert out_path == spy.call_args.args[0]