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Example 26 with PageCursor

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

the class CompositePageCursorTest method putShortBeyondEndOfViewMustRaiseBoundsFlag.

@Test
public void putShortBeyondEndOfViewMustRaiseBoundsFlag() throws Exception {
    PageCursor pageCursor = CompositePageCursor.compose(first, PAGE_SIZE, second, PAGE_SIZE);
    for (int i = 0; i < 3 * PAGE_SIZE; i++) {
        pageCursor.putShort((short) 1);
    }
    assertTrue(pageCursor.checkAndClearBoundsFlag());
    assertFalse(pageCursor.checkAndClearBoundsFlag());
}
Also used : PageCursor(org.neo4j.io.pagecache.PageCursor) StubPageCursor(org.neo4j.io.pagecache.StubPageCursor) Test(org.junit.Test)

Example 27 with PageCursor

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

the class CompositePageCursorTest method getByteWithOffsetMustHitCorrectCursors.

@Test
public void getByteWithOffsetMustHitCorrectCursors() throws Exception {
    first.setOffset(1);
    second.setOffset(2);
    PageCursor c = CompositePageCursor.compose(first, 1 + 1, second, 1);
    assertThat(c.getByte(1), is((byte) 0xA2));
    assertThat(c.getByte(1 + 1), is((byte) 0xB2));
    assertFalse(c.checkAndClearBoundsFlag());
}
Also used : PageCursor(org.neo4j.io.pagecache.PageCursor) StubPageCursor(org.neo4j.io.pagecache.StubPageCursor) Test(org.junit.Test)

Example 28 with PageCursor

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

the class CompositePageCursorTest method putShortMustHitFirstCursorBeforeFlip.

@Test
public void putShortMustHitFirstCursorBeforeFlip() throws Exception {
    PageCursor c = CompositePageCursor.compose(first, 2, second, 2);
    c.putShort((short) 1);
    c.setOffset(0);
    assertThat(c.getShort(), is((short) 1));
    assertFalse(c.checkAndClearBoundsFlag());
}
Also used : PageCursor(org.neo4j.io.pagecache.PageCursor) StubPageCursor(org.neo4j.io.pagecache.StubPageCursor) Test(org.junit.Test)

Example 29 with PageCursor

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

the class CompositePageCursorTest method putShortMustHitSecondCursorAfterFlip.

@Test
public void putShortMustHitSecondCursorAfterFlip() throws Exception {
    PageCursor c = CompositePageCursor.compose(first, 2, second, 2);
    c.putShort((short) 1);
    c.putShort((short) 2);
    c.setOffset(2);
    assertThat(c.getShort(), is((short) 2));
    assertFalse(c.checkAndClearBoundsFlag());
}
Also used : PageCursor(org.neo4j.io.pagecache.PageCursor) StubPageCursor(org.neo4j.io.pagecache.StubPageCursor) Test(org.junit.Test)

Example 30 with PageCursor

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

the class CompositePageCursorTest method putIntBeyondEndOfViewMustRaiseBoundsFlag.

@Test
public void putIntBeyondEndOfViewMustRaiseBoundsFlag() throws Exception {
    PageCursor pageCursor = CompositePageCursor.compose(first, PAGE_SIZE, second, PAGE_SIZE);
    for (int i = 0; i < 3 * PAGE_SIZE; i++) {
        pageCursor.putInt(1);
    }
    assertTrue(pageCursor.checkAndClearBoundsFlag());
    assertFalse(pageCursor.checkAndClearBoundsFlag());
}
Also used : PageCursor(org.neo4j.io.pagecache.PageCursor) StubPageCursor(org.neo4j.io.pagecache.StubPageCursor) Test(org.junit.Test)

Aggregations

PageCursor (org.neo4j.io.pagecache.PageCursor)184 Test (org.junit.Test)124 StubPageCursor (org.neo4j.io.pagecache.StubPageCursor)106 PagedFile (org.neo4j.io.pagecache.PagedFile)19 IOException (java.io.IOException)12 File (java.io.File)8 CursorException (org.neo4j.io.pagecache.CursorException)6 PageCacheTest (org.neo4j.io.pagecache.PageCacheTest)6 CompositePageCursor (org.neo4j.io.pagecache.impl.CompositePageCursor)6 DelegatingPageCursor (org.neo4j.io.pagecache.impl.DelegatingPageCursor)6 ByteBuffer (java.nio.ByteBuffer)5 DelegatingStoreChannel (org.neo4j.graphdb.mockfs.DelegatingStoreChannel)5 StoreChannel (org.neo4j.io.fs.StoreChannel)4 DelegatingPagedFile (org.neo4j.io.pagecache.DelegatingPagedFile)4 ConfigurablePageCursorTracerSupplier (org.neo4j.io.pagecache.tracing.ConfigurablePageCursorTracerSupplier)4 RecordingPageCacheTracer (org.neo4j.io.pagecache.tracing.recording.RecordingPageCacheTracer)4 Evict (org.neo4j.io.pagecache.tracing.recording.RecordingPageCacheTracer.Evict)4 RecordingPageCursorTracer (org.neo4j.io.pagecache.tracing.recording.RecordingPageCursorTracer)4 Fault (org.neo4j.io.pagecache.tracing.recording.RecordingPageCursorTracer.Fault)4 AtomicLong (java.util.concurrent.atomic.AtomicLong)3