Examples of org.apache.cayenne.unit.util.ThreadedTestHelper

org.apache.cayenne.unit.util.ThreadedTestHelper
Helper class allowing unit tests to wait till a code in question executes in a separate thread. There is still some element of uncertainty remains, since this implementation simply tries to give other threads enough time to execute, instead of watching for threads activity.
Note that result sampling is done every 300 ms., so if the test succeeds earlier, test case wouldn't have to wait for the whole time period specified by timeout.

        context.deleteObjects(artist);
        context.commitChanges();


        // assert that delegate was consulted when an object store
        // was refreshed
        ThreadedTestHelper helper = new ThreadedTestHelper() {


            @Override
            protected void assertResult() throws Exception {
                assertTrue("Delegate was not consulted", methodInvoked[0]);
            }
        };
        helper.assertWithTimeout(3000);
    }

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        context.deleteObjects(artist);
        context.commitChanges();


        // assert that delegate was consulted when an object store
        // was refreshed, and actually blocked object expulsion
        ThreadedTestHelper helper = new ThreadedTestHelper() {


            @Override
            protected void assertResult() throws Exception {
                assertTrue("Delegate was not consulted", methodInvoked[0]);
            }
        };
        helper.assertWithTimeout(3000);
        assertEquals(PersistenceState.COMMITTED, altArtist.getPersistenceState());
        assertNotNull(altArtist.getObjectContext());
    }

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        assertEquals(newName, freshSnapshot.get("ARTIST_NAME"));


        // check both artists
        assertEquals(newName, altArtist.getArtistName());


        ThreadedTestHelper helper = new ThreadedTestHelper() {


            @Override
            protected void assertResult() throws Exception {
                assertEquals(
                        "Peer object state wasn't refreshed on fetch",
                        newName,
                        artist.getArtistName());
            }
        };
        helper.assertWithTimeout(3000);
    }

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                .getDataRowCache()
                .getCachedSnapshot(altArtist.getObjectId());
        assertEquals(newName, freshSnapshot.get("ARTIST_NAME"));


        // check peer artist
        ThreadedTestHelper helper = new ThreadedTestHelper() {


            @Override
            protected void assertResult() throws Exception {
                assertEquals(newName, altArtist.getArtistName());
            }
        };
        helper.assertWithTimeout(3000);
    }

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                .getCachedSnapshot(altArtist.getObjectId());
        assertEquals(newName, freshSnapshot.get("ARTIST_NAME"));
        assertEquals(newDate, freshSnapshot.get("DATE_OF_BIRTH"));


        // check peer artist
        ThreadedTestHelper helper = new ThreadedTestHelper() {


            @Override
            protected void assertResult() throws Exception {
                assertEquals(newAltName, altArtist.getArtistName());
                assertEquals(newDate, altArtist.getDateOfBirth());
                assertEquals(PersistenceState.MODIFIED, altArtist.getPersistenceState());
            }
        };
        helper.assertWithTimeout(3000);


    }

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        // check underlying cache
        assertNull(context.getObjectStore().getDataRowCache().getCachedSnapshot(
                altArtist.getObjectId()));


        // check peer artist
        ThreadedTestHelper helper = new ThreadedTestHelper() {


            @Override
            protected void assertResult() throws Exception {
                assertEquals(PersistenceState.TRANSIENT, altArtist.getPersistenceState());
                assertNull(altArtist.getObjectContext());
            }
        };
        helper.assertWithTimeout(3000);
    }

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        // check underlying cache
        assertNull(context.getObjectStore().getDataRowCache().getCachedSnapshot(
                altArtist.getObjectId()));


        // check peer artist
        ThreadedTestHelper helper = new ThreadedTestHelper() {


            @Override
            protected void assertResult() throws Exception {
                assertEquals(PersistenceState.TRANSIENT, altArtist.getPersistenceState());
                assertNull(altArtist.getObjectContext());
            }
        };
        helper.assertWithTimeout(3000);
    }

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        // check underlying cache
        assertNull(context.getObjectStore().getDataRowCache().getCachedSnapshot(
                altArtist.getObjectId()));


        // check peer artist
        ThreadedTestHelper helper = new ThreadedTestHelper() {


            @Override
            protected void assertResult() throws Exception {
                assertEquals(PersistenceState.NEW, altArtist.getPersistenceState());
            }
        };
        helper.assertWithTimeout(3000);


        // check if now we can save this object again, and with the original
        // ObjectId
        ObjectId id = altArtist.getObjectId();
        assertNotNull(id);

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        // check underlying cache
        assertNull(context.getObjectStore().getDataRowCache().getCachedSnapshot(
                altArtist.getObjectId()));


        // check peer artist
        ThreadedTestHelper helper = new ThreadedTestHelper() {


            @Override
            protected void assertResult() throws Exception {
                assertEquals(PersistenceState.TRANSIENT, altArtist.getPersistenceState());
                assertNull(altArtist.getObjectContext());
            }
        };
        helper.assertWithTimeout(3000);


        assertFalse(altContext.hasChanges());
    }

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        // check underlying cache
        assertNull(context.getObjectStore().getDataRowCache().getCachedSnapshot(
                painting1.getObjectId()));


        // check peer artist
        ThreadedTestHelper helper = new ThreadedTestHelper() {


            @Override
            protected void assertResult() throws Exception {
                assertEquals(PersistenceState.TRANSIENT, altPainting1
                        .getPersistenceState());
                assertEquals(PersistenceState.COMMITTED, altArtist.getPersistenceState());


                Collection list = altArtist.getPaintingArray();
                assertEquals(1, list.size());
                assertFalse(list.contains(altPainting1));
            }
        };
        helper.assertWithTimeout(3000);
    }

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