Examples with StubPageCursor org.neo4j.io.pagecache.StubPageCursor used on opensource projects

Example 11 with StubPageCursor

use of org.neo4j.io.pagecache.StubPageCursor in project neo4j by neo4j.

the class RelationshipGroupRecordFormatTest method shouldReadUnsignedRelationshipTypeId.

@ParameterizedTest
@MethodSource("formats")
void shouldReadUnsignedRelationshipTypeId(RecordFormats formats) throws Exception {
    // GIVEN
    RecordFormat<RelationshipGroupRecord> format = formats.relationshipGroup();
    int recordSize = format.getRecordSize(NO_STORE_HEADER);
    try (PageCursor cursor = new StubPageCursor(1, recordSize * 10)) {
        int offset = 10;
        cursor.next();
        RelationshipGroupRecord group = new RelationshipGroupRecord(2).initialize(true, Short.MAX_VALUE + offset, 1, 2, 3, 4, 5);
        if (formats.hasCapability(RecordStorageCapability.GROUP_DEGREES_STORE)) {
            group.setHasExternalDegreesOut(random.nextBoolean());
            group.setHasExternalDegreesIn(random.nextBoolean());
            group.setHasExternalDegreesLoop(random.nextBoolean());
        }
        cursor.setOffset(offset);
        format.write(group, cursor, recordSize, cursor.getCurrentPageSize() / recordSize);
        // WHEN
        RelationshipGroupRecord read = new RelationshipGroupRecord(group.getId());
        cursor.setOffset(offset);
        format.read(read, cursor, NORMAL, recordSize, cursor.getCurrentPageSize() / recordSize);
        // THEN
        assertEquals(group, read);
    }
}

Example 12 with StubPageCursor

use of org.neo4j.io.pagecache.StubPageCursor in project neo4j by neo4j.

the class BaseRecordFormatTest method shouldRecognizeDesignatedInUseBit.

@Test
void shouldRecognizeDesignatedInUseBit() {
    // GIVEN
    RecordFormat<DynamicRecord> format = new DynamicRecordFormat();
    PageCursor cursor = new StubPageCursor(0, 1_000);
    byte inUseByte = 0;
    for (int i = 0; i < 8; i++) {
        // WHEN
        cursor.setOffset(68);
        cursor.putByte(cursor.getOffset(), inUseByte);
        // THEN
        assertEquals(shouldBeInUse(inUseByte), format.isInUse(cursor));
        inUseByte <<= 1;
        inUseByte |= 1;
    }
}