Examples with EASE com.ichi2.anki.CardBrowser.Column.EASE used on opensource projects

Example 16 with EASE

use of com.ichi2.anki.CardBrowser.Column.EASE in project Anki-Android by Ramblurr.

the class DeckTask method doInBackgroundAnswerCard.

private TaskData doInBackgroundAnswerCard(TaskData... params) {
    Sched sched = params[0].getSched();
    Card oldCard = params[0].getCard();
    int ease = params[0].getInt();
    Card newCard = null;
    // TODO: proper leech handling
    int oldCardLeech = 0;
    // 0: normal; 1: leech; 2: leech & suspended
    try {
        AnkiDb ankiDB = sched.getCol().getDb();
        ankiDB.getDatabase().beginTransaction();
        try {
            if (oldCard != null) {
                sched.answerCard(oldCard, ease);
            }
            if (newCard == null) {
                newCard = getCard(sched);
            }
            if (newCard != null) {
                // render cards before locking database
                newCard._getQA(true);
            }
            publishProgress(new TaskData(newCard, oldCardLeech));
            ankiDB.getDatabase().setTransactionSuccessful();
        } finally {
            ankiDB.getDatabase().endTransaction();
        }
    } catch (RuntimeException e) {
        Log.e(AnkiDroidApp.TAG, "doInBackgroundAnswerCard - RuntimeException on answering card: " + e);
        AnkiDroidApp.saveExceptionReportFile(e, "doInBackgroundAnswerCard");
        return new TaskData(false);
    }
    return new TaskData(true);
}

Example 17 with EASE

use of com.ichi2.anki.CardBrowser.Column.EASE in project AnkiChinaAndroid by ankichinateam.

the class CardContentProvider method update.

@Override
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
    if (!hasReadWritePermission() && shouldEnforceUpdateSecurity(uri)) {
        throwSecurityException("update", uri);
    }
    Collection col = CollectionHelper.getInstance().getCol(mContext);
    if (col == null) {
        throw new IllegalStateException(COL_NULL_ERROR_MSG);
    }
    col.log(getLogMessage("update", uri));
    // Find out what data the user is requesting
    int match = sUriMatcher.match(uri);
    // Number of updated entries (return value)
    int updated = 0;
    switch(match) {
        case NOTES_V2:
        case NOTES:
            throw new IllegalArgumentException("Not possible to update notes directly (only through data URI)");
        case NOTES_ID:
            {
                /* Direct access note details
                 */
                Note currentNote = getNoteFromUri(uri, col);
                // the key of the ContentValues contains the column name
                // the value of the ContentValues contains the row value.
                Set<Map.Entry<String, Object>> valueSet = values.valueSet();
                for (Map.Entry<String, Object> entry : valueSet) {
                    String key = entry.getKey();
                    // when the client does not specify FLDS, then don't update the FLDS
                    if (key.equals(FlashCardsContract.Note.FLDS)) {
                        // Update FLDS
                        Timber.d("CardContentProvider: flds update...");
                        String newFldsEncoded = (String) entry.getValue();
                        String[] flds = Utils.splitFields(newFldsEncoded);
                        // Check that correct number of flds specified
                        if (flds.length != currentNote.getFields().length) {
                            throw new IllegalArgumentException("Incorrect flds argument : " + newFldsEncoded);
                        }
                        // Update the note
                        for (int idx = 0; idx < flds.length; idx++) {
                            currentNote.setField(idx, flds[idx]);
                        }
                        updated++;
                    } else if (key.equals(FlashCardsContract.Note.TAGS)) {
                        // Update tags
                        Timber.d("CardContentProvider: tags update...");
                        Object tags = entry.getValue();
                        if (tags != null) {
                            currentNote.setTagsFromStr(String.valueOf(tags));
                        }
                        updated++;
                    } else {
                        // Unsupported column
                        throw new IllegalArgumentException("Unsupported column: " + key);
                    }
                }
                Timber.d("CardContentProvider: Saving note...");
                currentNote.flush();
                break;
            }
        case NOTES_ID_CARDS:
            // TODO: To be implemented
            throw new UnsupportedOperationException("Not yet implemented");
        // break;
        case NOTES_ID_CARDS_ORD:
            {
                Card currentCard = getCardFromUri(uri, col);
                boolean isDeckUpdate = false;
                long did = -1;
                // the key of the ContentValues contains the column name
                // the value of the ContentValues contains the row value.
                Set<Map.Entry<String, Object>> valueSet = values.valueSet();
                for (Map.Entry<String, Object> entry : valueSet) {
                    // Only updates on deck id is supported
                    String key = entry.getKey();
                    isDeckUpdate = key.equals(FlashCardsContract.Card.DECK_ID);
                    did = values.getAsLong(key);
                }
                if (col.getDecks().isDyn(did)) {
                    throw new IllegalArgumentException("Cards cannot be moved to a filtered deck");
                }
                /* now update the card
                 */
                if ((isDeckUpdate) && (did >= 0)) {
                    Timber.d("CardContentProvider: Moving card to other deck...");
                    col.getDecks().flush();
                    currentCard.setDid(did);
                    currentCard.flush();
                    col.save();
                    updated++;
                } else {
                    // User tries an operation that is not (yet?) supported.
                    throw new IllegalArgumentException("Currently only updates of decks are supported");
                }
                break;
            }
        case MODELS:
            throw new IllegalArgumentException("Cannot update models in bulk");
        case MODELS_ID:
            // Get the input parameters
            String newModelName = values.getAsString(FlashCardsContract.Model.NAME);
            String newCss = values.getAsString(FlashCardsContract.Model.CSS);
            String newDid = values.getAsString(FlashCardsContract.Model.DECK_ID);
            String newFieldList = values.getAsString(FlashCardsContract.Model.FIELD_NAMES);
            if (newFieldList != null) {
                // Changing the field names would require a full-sync
                throw new IllegalArgumentException("Field names cannot be changed via provider");
            }
            Integer newSortf = values.getAsInteger(FlashCardsContract.Model.SORT_FIELD_INDEX);
            Integer newType = values.getAsInteger(FlashCardsContract.Model.TYPE);
            String newLatexPost = values.getAsString(FlashCardsContract.Model.LATEX_POST);
            String newLatexPre = values.getAsString(FlashCardsContract.Model.LATEX_PRE);
            // Get the original note JSON
            Model model = col.getModels().get(getModelIdFromUri(uri, col));
            try {
                // Update model name and/or css
                if (newModelName != null) {
                    model.put("name", newModelName);
                    updated++;
                }
                if (newCss != null) {
                    model.put("css", newCss);
                    updated++;
                }
                if (newDid != null) {
                    if (col.getDecks().isDyn(Long.parseLong(newDid))) {
                        throw new IllegalArgumentException("Cannot set a filtered deck as default deck for a model");
                    }
                    model.put("did", newDid);
                    updated++;
                }
                if (newSortf != null) {
                    model.put("sortf", newSortf);
                    updated++;
                }
                if (newType != null) {
                    model.put("type", newType);
                    updated++;
                }
                if (newLatexPost != null) {
                    model.put("latexPost", newLatexPost);
                    updated++;
                }
                if (newLatexPre != null) {
                    model.put("latexPre", newLatexPre);
                    updated++;
                }
                col.getModels().save(model);
                col.save();
            } catch (JSONException e) {
                Timber.e(e, "JSONException updating model");
            }
            break;
        case MODELS_ID_TEMPLATES:
            throw new IllegalArgumentException("Cannot update templates in bulk");
        case MODELS_ID_TEMPLATES_ID:
            Long mid = values.getAsLong(CardTemplate.MODEL_ID);
            Integer ord = values.getAsInteger(CardTemplate.ORD);
            String name = values.getAsString(CardTemplate.NAME);
            String qfmt = values.getAsString(CardTemplate.QUESTION_FORMAT);
            String afmt = values.getAsString(CardTemplate.ANSWER_FORMAT);
            String bqfmt = values.getAsString(CardTemplate.BROWSER_QUESTION_FORMAT);
            String bafmt = values.getAsString(CardTemplate.BROWSER_ANSWER_FORMAT);
            // Throw exception if read-only fields are included
            if (mid != null || ord != null) {
                throw new IllegalArgumentException("Updates to mid or ord are not allowed");
            }
            // Update the model
            try {
                Integer templateOrd = Integer.parseInt(uri.getLastPathSegment());
                Model existingModel = col.getModels().get(getModelIdFromUri(uri, col));
                JSONArray templates = existingModel.getJSONArray("tmpls");
                JSONObject template = templates.getJSONObject(templateOrd);
                if (name != null) {
                    template.put("name", name);
                    updated++;
                }
                if (qfmt != null) {
                    template.put("qfmt", qfmt);
                    updated++;
                }
                if (afmt != null) {
                    template.put("afmt", afmt);
                    updated++;
                }
                if (bqfmt != null) {
                    template.put("bqfmt", bqfmt);
                    updated++;
                }
                if (bafmt != null) {
                    template.put("bafmt", bafmt);
                    updated++;
                }
                // Save the model
                templates.put(templateOrd, template);
                existingModel.put("tmpls", templates);
                col.getModels().save(existingModel, true);
                col.save();
            } catch (JSONException e) {
                throw new IllegalArgumentException("Model is malformed", e);
            }
            break;
        case SCHEDULE:
            {
                Set<Map.Entry<String, Object>> valueSet = values.valueSet();
                int cardOrd = -1;
                long noteID = -1;
                int ease = -1;
                long timeTaken = -1;
                int bury = -1;
                int suspend = -1;
                for (Map.Entry<String, Object> entry : valueSet) {
                    String key = entry.getKey();
                    if (key.equals(FlashCardsContract.ReviewInfo.NOTE_ID)) {
                        noteID = values.getAsLong(key);
                    } else if (key.equals(FlashCardsContract.ReviewInfo.CARD_ORD)) {
                        cardOrd = values.getAsInteger(key);
                    } else if (key.equals(FlashCardsContract.ReviewInfo.EASE)) {
                        ease = values.getAsInteger(key);
                    } else if (key.equals(FlashCardsContract.ReviewInfo.TIME_TAKEN)) {
                        timeTaken = values.getAsLong(key);
                    } else if (key.equals(FlashCardsContract.ReviewInfo.BURY)) {
                        bury = values.getAsInteger(key);
                    } else if (key.equals(FlashCardsContract.ReviewInfo.SUSPEND)) {
                        suspend = values.getAsInteger(key);
                    }
                }
                if (cardOrd != -1 && noteID != -1) {
                    Card cardToAnswer = getCard(noteID, cardOrd, col);
                    if (cardToAnswer != null) {
                        if (bury == 1) {
                            // bury card
                            buryOrSuspendCard(col, col.getSched(), cardToAnswer, true);
                        } else if (suspend == 1) {
                            // suspend card
                            buryOrSuspendCard(col, col.getSched(), cardToAnswer, false);
                        } else {
                            answerCard(col, col.getSched(), cardToAnswer, ease, timeTaken);
                        }
                        updated++;
                    } else {
                        Timber.e("Requested card with noteId %d and cardOrd %d was not found. Either the provided " + "noteId/cardOrd were wrong or the card has been deleted in the meantime.", noteID, cardOrd);
                    }
                }
                break;
            }
        case DECKS:
            throw new IllegalArgumentException("Can't update decks in bulk");
        case DECKS_ID:
            // TODO: be sure to throw exception if change to the dyn value of a deck is requested
            throw new UnsupportedOperationException("Not yet implemented");
        case DECK_SELECTED:
            {
                Set<Map.Entry<String, Object>> valueSet = values.valueSet();
                for (Map.Entry<String, Object> entry : valueSet) {
                    String key = entry.getKey();
                    if (key.equals(FlashCardsContract.Deck.DECK_ID)) {
                        long deckId = values.getAsLong(key);
                        if (selectDeckWithCheck(col, deckId)) {
                            updated++;
                        }
                    }
                }
                col.save();
                break;
            }
        default:
            // Unknown URI type
            throw new IllegalArgumentException("uri " + uri + " is not supported");
    }
    return updated;
}

Example 18 with EASE

use of com.ichi2.anki.CardBrowser.Column.EASE in project AnkiChinaAndroid by ankichinateam.

the class Sched method _nextRevIvl.

/**
 * Interval management ******************************************************
 * *****************************************
 */
/**
 * Ideal next interval for CARD, given EASE.
 */
private int _nextRevIvl(@NonNull Card card, @Consts.BUTTON_TYPE int ease) {
    long delay = _daysLate(card);
    int interval = 0;
    JSONObject conf = _revConf(card);
    double fct = card.getFactor() / 1000.0;
    int ivl2 = _constrainedIvl((int) ((card.getIvl() + delay / 4) * 1.2), conf, card.getIvl());
    int ivl3 = _constrainedIvl((int) ((card.getIvl() + delay / 2) * fct), conf, ivl2);
    int ivl4 = _constrainedIvl((int) ((card.getIvl() + delay) * fct * conf.getDouble("ease4")), conf, ivl3);
    if (ease == Consts.BUTTON_TWO) {
        interval = ivl2;
    } else if (ease == Consts.BUTTON_THREE) {
        interval = ivl3;
    } else if (ease == Consts.BUTTON_FOUR) {
        interval = ivl4;
    }
    // interval capped?
    return Math.min(interval, conf.getInt("maxIvl"));
}

Example 19 with EASE

use of com.ichi2.anki.CardBrowser.Column.EASE in project AnkiChinaAndroid by ankichinateam.

the class Sched method _answerLrnCard.

/**
 * @param ease 1=no, 2=yes, 3=remove
 */
@Override
protected void _answerLrnCard(@NonNull Card card, @Consts.BUTTON_TYPE int ease) {
    JSONObject conf = _lrnConf(card);
    @Consts.CARD_TYPE int type;
    if (card.getODid() != 0 && !card.getWasNew()) {
        type = Consts.CARD_TYPE_RELEARNING;
    } else if (card.getType() == Consts.CARD_TYPE_REV) {
        type = Consts.CARD_TYPE_REV;
    } else {
        type = Consts.CARD_TYPE_NEW;
    }
    boolean leaving = false;
    // lrnCount was decremented once when card was fetched
    int lastLeft = card.getLeft();
    // immediate graduate?
    if (ease == Consts.BUTTON_THREE) {
        _rescheduleAsRev(card, conf, true);
        leaving = true;
    // graduation time?
    } else if (ease == Consts.BUTTON_TWO && (card.getLeft() % 1000) - 1 <= 0) {
        _rescheduleAsRev(card, conf, false);
        leaving = true;
    } else {
        // one step towards graduation
        if (ease == Consts.BUTTON_TWO) {
            // decrement real left count and recalculate left today
            int left = (card.getLeft() % 1000) - 1;
            card.setLeft(_leftToday(conf.getJSONArray("delays"), left) * 1000 + left);
        // failed
        } else {
            card.setLeft(_startingLeft(card));
            boolean resched = _resched(card);
            if (conf.has("mult") && resched) {
                // review that's lapsed
                card.setIvl(Math.max(Math.max(1, (int) (card.getIvl() * conf.getDouble("mult"))), conf.getInt("minInt")));
            } else {
            // new card; no ivl adjustment
            // pass
            }
            if (resched && card.getODid() != 0) {
                card.setODue(mToday + 1);
            }
        }
        int delay = _delayForGrade(conf, card.getLeft());
        if (card.getDue() < getTime().intTime()) {
            // not collapsed; add some randomness
            delay *= Utils.randomFloatInRange(1f, 1.25f);
        }
        card.setDue(getTime().intTime() + delay);
        // due today?
        if (card.getDue() < mDayCutoff) {
            mLrnCount += card.getLeft() / 1000;
            // if the queue is not empty and there's nothing else to do, make
            // sure we don't put it at the head of the queue and end up showing
            // it twice in a row
            card.setQueue(Consts.QUEUE_TYPE_LRN);
            if (!mLrnQueue.isEmpty() && revCount() == 0 && newCount() == 0) {
                long smallestDue = mLrnQueue.getFirstDue();
                card.setDue(Math.max(card.getDue(), smallestDue + 1));
            }
            _sortIntoLrn(card.getDue(), card.getId());
        } else {
            // the card is due in one or more days, so we need to use the day learn queue
            long ahead = ((card.getDue() - mDayCutoff) / SECONDS_PER_DAY) + 1;
            card.setDue(mToday + ahead);
            card.setQueue(Consts.QUEUE_TYPE_DAY_LEARN_RELEARN);
        }
    }
    _logLrn(card, ease, conf, leaving, type, lastLeft);
}

Example 20 with EASE

use of com.ichi2.anki.CardBrowser.Column.EASE in project AnkiChinaAndroid by ankichinateam.

the class FinderTest method test_findCards.

@Test
public void test_findCards() {
    Collection col = getCol();
    Note note = col.newNote();
    note.setItem("Front", "dog");
    note.setItem("Back", "cat");
    note.addTag("monkey animal_1 * %");
    col.addNote(note);
    long n1id = note.getId();
    long firstCardId = note.cards().get(0).getId();
    note = col.newNote();
    note.setItem("Front", "goats are fun");
    note.setItem("Back", "sheep");
    note.addTag("sheep goat horse animal11");
    col.addNote(note);
    long n2id = note.getId();
    note = col.newNote();
    note.setItem("Front", "cat");
    note.setItem("Back", "sheep");
    col.addNote(note);
    Card catCard = note.cards().get(0);
    Model m = col.getModels().current();
    m = col.getModels().copy(m);
    Models mm = col.getModels();
    JSONObject t = Models.newTemplate("Reverse");
    t.put("qfmt", "{{Back}}");
    t.put("afmt", "{{Front}}");
    mm.addTemplateModChanged(m, t);
    mm.save(m);
    note = col.newNote();
    note.setItem("Front", "test");
    note.setItem("Back", "foo bar");
    col.addNote(note);
    col.save();
    List<Long> latestCardIds = note.cids();
    // tag searches
    assertEquals(5, col.findCards("tag:*").size());
    assertEquals(1, col.findCards("tag:\\*").size());
    assertEquals(5, col.findCards("tag:%").size());
    assertEquals(1, col.findCards("tag:\\%").size());
    assertEquals(2, col.findCards("tag:animal_1").size());
    assertEquals(1, col.findCards("tag:animal\\_1").size());
    assertEquals(0, col.findCards("tag:donkey").size());
    assertEquals(1, col.findCards("tag:sheep").size());
    assertEquals(1, col.findCards("tag:sheep tag:goat").size());
    assertEquals(0, col.findCards("tag:sheep tag:monkey").size());
    assertEquals(1, col.findCards("tag:monkey").size());
    assertEquals(1, col.findCards("tag:sheep -tag:monkey").size());
    assertEquals(4, col.findCards("-tag:sheep").size());
    col.getTags().bulkAdd(col.getDb().queryLongList("select id from notes"), "foo bar");
    assertEquals(5, col.findCards("tag:foo").size());
    assertEquals(5, col.findCards("tag:bar").size());
    col.getTags().bulkRem(col.getDb().queryLongList("select id from notes"), "foo");
    assertEquals(0, col.findCards("tag:foo").size());
    assertEquals(5, col.findCards("tag:bar").size());
    // text searches
    assertEquals(2, col.findCards("cat").size());
    assertEquals(1, col.findCards("cat -dog").size());
    assertEquals(1, col.findCards("cat -dog").size());
    assertEquals(1, col.findCards("are goats").size());
    assertEquals(0, col.findCards("\"are goats\"").size());
    assertEquals(1, col.findCards("\"goats are\"").size());
    // card states
    Card c = note.cards().get(0);
    c.setQueue(QUEUE_TYPE_REV);
    c.setType(CARD_TYPE_REV);
    assertEquals(0, col.findCards("is:review").size());
    c.flush();
    assertEqualsArrayList((new Long[] { c.getId() }), col.findCards("is:review"));
    assertEquals(0, col.findCards("is:due").size());
    c.setDue(0);
    c.setQueue(QUEUE_TYPE_REV);
    c.flush();
    assertEqualsArrayList((new Long[] { c.getId() }), col.findCards("is:due"));
    assertEquals(4, col.findCards("-is:due").size());
    c.setQueue(QUEUE_TYPE_SUSPENDED);
    // ensure this card gets a later mod time
    c.flush();
    col.getDb().execute("update cards set mod = mod + 1 where id = ?", c.getId());
    assertEqualsArrayList((new Long[] { c.getId() }), col.findCards("is:suspended"));
    // nids
    assertEquals(0, col.findCards("nid:54321").size());
    assertEquals(2, col.findCards("nid:" + note.getId()).size());
    assertEquals(2, col.findCards("nid:" + n1id + "," + n2id).size());
    // templates
    assertEquals(0, col.findCards("card:foo").size());
    assertEquals(4, col.findCards("\"card:card 1\"").size());
    assertEquals(1, col.findCards("card:reverse").size());
    assertEquals(4, col.findCards("card:1").size());
    assertEquals(1, col.findCards("card:2").size());
    // fields
    assertEquals(1, col.findCards("front:dog").size());
    assertEquals(4, col.findCards("-front:dog").size());
    assertEquals(0, col.findCards("front:sheep").size());
    assertEquals(2, col.findCards("back:sheep").size());
    assertEquals(3, col.findCards("-back:sheep").size());
    assertEquals(0, col.findCards("front:do").size());
    assertEquals(5, col.findCards("front:*").size());
    // ordering
    col.getConf().put("sortType", "noteCrt");
    col.flush();
    assertTrue(latestCardIds.contains(getLastListElement(col.findCards("front:*", true))));
    assertTrue(latestCardIds.contains(getLastListElement(col.findCards("", true))));
    col.getConf().put("sortType", "noteFld");
    col.flush();
    assertEquals(catCard.getId(), (long) col.findCards("", true).get(0));
    assertTrue(latestCardIds.contains(getLastListElement(col.findCards("", true))));
    col.getConf().put("sortType", "cardMod");
    col.flush();
    assertTrue(latestCardIds.contains(getLastListElement(col.findCards("", true))));
    assertEquals(firstCardId, (long) col.findCards("", true).get(0));
    col.getConf().put("sortBackwards", true);
    col.flush();
    assertTrue(latestCardIds.contains(col.findCards("", true).get(0)));
    /* TODO: Port BuiltinSortKind
           assertEquals(firstCardId,
           col.findCards("", BuiltinSortKind.CARD_DUE, reverse=false).get(0)
           );
           assertNotEquals(firstCardId,
           col.findCards("", BuiltinSortKind.CARD_DUE, reverse=true).get(0));
        */
    // model
    assertEquals(3, col.findCards("note:basic").size());
    assertEquals(2, col.findCards("-note:basic").size());
    assertEquals(5, col.findCards("-note:foo").size());
    // col
    assertEquals(5, col.findCards("deck:default").size());
    assertEquals(0, col.findCards("-deck:default").size());
    assertEquals(5, col.findCards("-deck:foo").size());
    assertEquals(5, col.findCards("deck:def*").size());
    assertEquals(5, col.findCards("deck:*EFAULT").size());
    assertEquals(0, col.findCards("deck:*cefault").size());
    // full search
    note = col.newNote();
    note.setItem("Front", "hello<b>world</b>");
    note.setItem("Back", "abc");
    col.addNote(note);
    // as it's the sort field, it matches
    assertEquals(2, col.findCards("helloworld").size());
    // assertEquals(, col.findCards("helloworld", full=true).size())2 This is commented upstream
    // if we put it on the back, it won't
    String note_front = note.getItem("Front");
    String note_back = note.getItem("Back");
    note.setItem("Front", note_back);
    note.setItem("Back", note_front);
    note.flush();
    assertEquals(0, col.findCards("helloworld").size());
    //  Those lines are commented above
    // assertEquals(, col.findCards("helloworld", full=true).size())2
    // assertEquals(, col.findCards("back:helloworld", full=true).size())2
    // searching for an invalid special tag should not error
    // TODO: ensure the search fail
    // assertThrows(Exception.class, () -> col.findCards("is:invalid").size());
    // should be able to limit to parent col, no children
    long id = col.getDb().queryLongScalar("select id from cards limit 1");
    col.getDb().execute("update cards set did = ? where id = ?", col.getDecks().id("Default::Child"), id);
    col.save();
    assertEquals(7, col.findCards("deck:default").size());
    assertEquals(1, col.findCards("deck:default::child").size());
    assertEquals(6, col.findCards("deck:default -deck:default::*").size());
    // properties
    id = col.getDb().queryLongScalar("select id from cards limit 1");
    col.getDb().execute("update cards set queue=2, ivl=10, reps=20, due=30, factor=2200 where id = ?", id);
    assertEquals(1, col.findCards("prop:ivl>5").size());
    assertThat(col.findCards("prop:ivl<5").size(), greaterThan(1));
    assertEquals(1, col.findCards("prop:ivl>=5").size());
    assertEquals(0, col.findCards("prop:ivl=9").size());
    assertEquals(1, col.findCards("prop:ivl=10").size());
    assertThat(col.findCards("prop:ivl!=10").size(), greaterThan(1));
    assertEquals(1, col.findCards("prop:due>0").size());
    // due dates should work
    assertEquals(0, col.findCards("prop:due=29").size());
    assertEquals(1, col.findCards("prop:due=30").size());
    // ease factors
    assertEquals(0, col.findCards("prop:ease=2.3").size());
    assertEquals(1, col.findCards("prop:ease=2.2").size());
    assertEquals(1, col.findCards("prop:ease>2").size());
    assertThat(col.findCards("-prop:ease>2").size(), greaterThan(1));
    // recently failed
    if (!isNearCutoff(col)) {
        assertEquals(0, col.findCards("rated:1:1").size());
        assertEquals(0, col.findCards("rated:1:2").size());
        c = col.getSched().getCard();
        col.getSched().answerCard(c, 2);
        assertEquals(0, col.findCards("rated:1:1").size());
        assertEquals(1, col.findCards("rated:1:2").size());
        c = col.getSched().getCard();
        col.getSched().answerCard(c, 1);
        assertEquals(1, col.findCards("rated:1:1").size());
        assertEquals(1, col.findCards("rated:1:2").size());
        assertEquals(2, col.findCards("rated:1").size());
        assertEquals(0, col.findCards("rated:0:2").size());
        assertEquals(1, col.findCards("rated:2:2").size());
        // added
        assertEquals(0, col.findCards("added:0").size());
        col.getDb().execute("update cards set id = id - " + SECONDS_PER_DAY * 1000 + " where id = ?", id);
        assertEquals(col.cardCount() - 1, col.findCards("added:1").size());
        assertEquals(col.cardCount(), col.findCards("added:2").size());
    } else {
        Timber.w("some find tests disabled near cutoff");
    }
    // empty field
    assertEquals(0, col.findCards("front:").size());
    note = col.newNote();
    note.setItem("Front", "");
    note.setItem("Back", "abc2");
    assertEquals(1, col.addNote(note));
    assertEquals(1, col.findCards("front:").size());
    // OR searches and nesting
    assertEquals(2, col.findCards("tag:monkey or tag:sheep").size());
    assertEquals(2, col.findCards("(tag:monkey OR tag:sheep)").size());
    assertEquals(6, col.findCards("-(tag:monkey OR tag:sheep)").size());
    assertEquals(2, col.findCards("tag:monkey or (tag:sheep sheep)").size());
    assertEquals(1, col.findCards("tag:monkey or (tag:sheep octopus)").size());
// flag
// Todo: ensure it fails
// assertThrows(Exception.class, () -> col.findCards("flag:12"));
}