Merge pull request #1134 from ethho/dev-tests-plat-162-relation

PLAT-162: Migrate test_relation

tests/test_relation.py

@@ -0,0 +1,344 @@
+import pytest
+from inspect import getmembers
+import re
+import pandas
+import numpy as np
+import datajoint as dj
+from datajoint.table import Table
+from unittest.mock import patch
+
+from . import schema
+
+
+@pytest.fixture
+def test(schema_any):
+    yield schema.TTest()
+
+
+@pytest.fixture
+def test2(schema_any):
+    yield schema.TTest2()
+
+
+@pytest.fixture
+def test_extra(schema_any):
+    yield schema.TTestExtra()
+
+
+@pytest.fixture
+def test_no_extra(schema_any):
+    yield schema.TTestNoExtra()
+
+
+@pytest.fixture
+def user(schema_any):
+    return schema.User()
+
+
+@pytest.fixture
+def subject(schema_any):
+    return schema.Subject()
+
+
+@pytest.fixture
+def experiment(schema_any):
+    return schema.Experiment()
+
+
+@pytest.fixture
+def ephys(schema_any):
+    return schema.Ephys()
+
+
+@pytest.fixture
+def img(schema_any):
+    return schema.Image()
+
+
+@pytest.fixture
+def trash(schema_any):
+    return schema.UberTrash()
+
+
+def test_contents(user, subject):
+    """
+    test the ability of tables to self-populate using the contents property
+    """
+    # test contents
+    assert user
+    assert len(user) == len(user.contents)
+    u = user.fetch(order_by=["username"])
+    assert list(u["username"]) == sorted([s[0] for s in user.contents])
+
+    # test prepare
+    assert subject
+    assert len(subject) == len(subject.contents)
+    u = subject.fetch(order_by=["subject_id"])
+    assert list(u["subject_id"]) == sorted([s[0] for s in subject.contents])
+
+
+def test_misnamed_attribute1(user):
+    with pytest.raises(dj.DataJointError):
+        user.insert([dict(username="Bob"), dict(user="Alice")])
+
+
+def test_misnamed_attribute2(user):
+    with pytest.raises(KeyError):
+        user.insert1(dict(user="Bob"))
+
+
+def test_extra_attribute1(user):
+    with pytest.raises(KeyError):
+        user.insert1(dict(username="Robert", spouse="Alice"))
+
+
+def test_extra_attribute2(user):
+    user.insert1(dict(username="Robert", spouse="Alice"), ignore_extra_fields=True)
+
+
+def test_missing_definition(schema_any):
+    class MissingDefinition(dj.Manual):
+        definitions = """  # misspelled definition
+        id : int
+        ---
+        comment : varchar(16)  # otherwise everything's normal
+        """
+
+    with pytest.raises(NotImplementedError):
+        schema_any(MissingDefinition, context=dict(MissingDefinition=MissingDefinition))
+
+
+def test_empty_insert1(user):
+    with pytest.raises(dj.DataJointError):
+        user.insert1(())
+
+
+def test_empty_insert(user):
+    with pytest.raises(dj.DataJointError):
+        user.insert([()])
+
+
+def test_wrong_arguments_insert(user):
+    with pytest.raises(dj.DataJointError):
+        user.insert1(("First", "Second"))
+
+
+def test_wrong_insert_type(user):
+    with pytest.raises(dj.DataJointError):
+        user.insert1(3)
+
+
+def test_insert_select(subject, test, test2):
+    test2.delete()
+    test2.insert(test)
+    assert len(test2) == len(test)
+
+    original_length = len(subject)
+    elements = subject.proj(..., s="subject_id")
+    elements = elements.proj(
+        "real_id",
+        "date_of_birth",
+        "subject_notes",
+        subject_id="s+1000",
+        species='"human"',
+    )
+    subject.insert(elements, ignore_extra_fields=True)
+    assert len(subject) == 2 * original_length
+
+
+def test_insert_pandas_roundtrip(test, test2):
+    """ensure fetched frames can be inserted"""
+    test2.delete()
+    n = len(test)
+    assert n > 0
+    df = test.fetch(format="frame")
+    assert isinstance(df, pandas.DataFrame)
+    assert len(df) == n
+    test2.insert(df)
+    assert len(test2) == n
+
+
+def test_insert_pandas_userframe(test, test2):
+    """
+    ensure simple user-created frames (1 field, non-custom index)
+    can be inserted without extra index adjustment
+    """
+    test2.delete()
+    n = len(test)
+    assert n > 0
+    df = pandas.DataFrame(test.fetch())
+    assert isinstance(df, pandas.DataFrame)
+    assert len(df) == n
+    test2.insert(df)
+    assert len(test2) == n
+
+
+def test_insert_select_ignore_extra_fields0(test, test_extra):
+    """need ignore extra fields for insert select"""
+    test_extra.insert1((test.fetch("key").max() + 1, 0, 0))
+    with pytest.raises(dj.DataJointError):
+        test.insert(test_extra)
+
+
+def test_insert_select_ignore_extra_fields1(test, test_extra):
+    """make sure extra fields works in insert select"""
+    test_extra.delete()
+    keyno = test.fetch("key").max() + 1
+    test_extra.insert1((keyno, 0, 0))
+    test.insert(test_extra, ignore_extra_fields=True)
+    assert keyno in test.fetch("key")
+
+
+def test_insert_select_ignore_extra_fields2(test_no_extra, test):
+    """make sure insert select still works when ignoring extra fields when there are none"""
+    test_no_extra.delete()
+    test_no_extra.insert(test, ignore_extra_fields=True)
+
+
+def test_insert_select_ignore_extra_fields3(test, test_no_extra, test_extra):
+    """make sure insert select works for from query result"""
+    # Recreate table state from previous tests
+    keyno = test.fetch("key").max() + 1
+    test_extra.insert1((keyno, 0, 0))
+    test.insert(test_extra, ignore_extra_fields=True)
+
+    assert len(test_extra.fetch("key")), "test_extra is empty"
+    test_no_extra.delete()
+    assert len(test_extra.fetch("key")), "test_extra is empty"
+    keystr = str(test_extra.fetch("key").max())
+    test_no_extra.insert((test_extra & "`key`=" + keystr), ignore_extra_fields=True)
+
+
+def test_skip_duplicates(test_no_extra, test):
+    """test that skip_duplicates works when inserting from another table"""
+    test_no_extra.delete()
+    test_no_extra.insert(test, ignore_extra_fields=True, skip_duplicates=True)
+    test_no_extra.insert(test, ignore_extra_fields=True, skip_duplicates=True)
+
+
+def test_replace(subject):
+    """
+    Test replacing or ignoring duplicate entries
+    """
+    key = dict(subject_id=7)
+    date = "2015-01-01"
+    subject.insert1(dict(key, real_id=7, date_of_birth=date, subject_notes=""))
+    assert date == str((subject & key).fetch1("date_of_birth")), "incorrect insert"
+    date = "2015-01-02"
+    subject.insert1(
+        dict(key, real_id=7, date_of_birth=date, subject_notes=""),
+        skip_duplicates=True,
+    )
+    assert date != str((subject & key).fetch1("date_of_birth")), "inappropriate replace"
+    subject.insert1(
+        dict(key, real_id=7, date_of_birth=date, subject_notes=""), replace=True
+    )
+    assert date == str((subject & key).fetch1("date_of_birth")), "replace failed"
+
+
+def test_delete_quick(subject):
+    """Tests quick deletion"""
+    tmp = np.array(
+        [
+            (2, "Klara", "monkey", "2010-01-01", ""),
+            (1, "Peter", "mouse", "2015-01-01", ""),
+        ],
+        dtype=subject.heading.as_dtype,
+    )
+    subject.insert(tmp)
+    s = subject & ("subject_id in (%s)" % ",".join(str(r) for r in tmp["subject_id"]))
+    assert len(s) == 2, "insert did not work."
+    s.delete_quick()
+    assert len(s) == 0, "delete did not work."
+
+
+def test_skip_duplicate(subject):
+    """Tests if duplicates are properly skipped."""
+    tmp = np.array(
+        [
+            (2, "Klara", "monkey", "2010-01-01", ""),
+            (1, "Peter", "mouse", "2015-01-01", ""),
+        ],
+        dtype=subject.heading.as_dtype,
+    )
+    subject.insert(tmp)
+    tmp = np.array(
+        [
+            (2, "Klara", "monkey", "2010-01-01", ""),
+            (1, "Peter", "mouse", "2015-01-01", ""),
+        ],
+        dtype=subject.heading.as_dtype,
+    )
+    subject.insert(tmp, skip_duplicates=True)
+
+
+def test_not_skip_duplicate(subject):
+    """Tests if duplicates are not skipped."""
+    tmp = np.array(
+        [
+            (2, "Klara", "monkey", "2010-01-01", ""),
+            (2, "Klara", "monkey", "2010-01-01", ""),
+            (1, "Peter", "mouse", "2015-01-01", ""),
+        ],
+        dtype=subject.heading.as_dtype,
+    )
+    with pytest.raises(dj.errors.DuplicateError):
+        subject.insert(tmp, skip_duplicates=False)
+
+
+def test_no_error_suppression(test):
+    """skip_duplicates=True should not suppress other errors"""
+    with pytest.raises(dj.errors.MissingAttributeError):
+        test.insert([dict(key=100)], skip_duplicates=True)
+
+
+def test_blob_insert(img):
+    """Tests inserting and retrieving blobs."""
+    X = np.random.randn(20, 10)
+    img.insert1((1, X))
+    Y = img.fetch()[0]["img"]
+    assert np.all(X == Y), "Inserted and retrieved image are not identical"
+
+
+def test_drop(trash):
+    """Tests dropping tables"""
+    dj.config["safemode"] = True
+    with patch.object(dj.utils, "input", create=True, return_value="yes"):
+        trash.drop()
+    try:
+        trash.fetch()
+        raise Exception("Fetched after table dropped.")
+    except dj.DataJointError:
+        pass
+    finally:
+        dj.config["safemode"] = False
+
+
+def test_table_regexp(schema_any):
+    """Test whether table names are matched by regular expressions"""
+
+    def relation_selector(attr):
+        try:
+            return issubclass(attr, Table)
+        except TypeError:
+            return False
+
+    tiers = [dj.Imported, dj.Manual, dj.Lookup, dj.Computed]
+    for name, rel in getmembers(schema, relation_selector):
+        assert re.match(
+            rel.tier_regexp, rel.table_name
+        ), "Regular expression does not match for {name}".format(name=name)
+        for tier in tiers:
+            assert issubclass(rel, tier) or not re.match(
+                tier.tier_regexp, rel.table_name
+            ), "Regular expression matches for {name} but should not".format(name=name)
+
+
+def test_table_size(experiment):
+    """test getting the size of the table and its indices in bytes"""
+    number_of_bytes = experiment.size_on_disk
+    assert isinstance(number_of_bytes, int) and number_of_bytes > 100
+
+
+def test_repr_html(ephys):
+    assert ephys._repr_html_().strip().startswith("<style")