Package com.facebook.presto.block.rle

Examples of com.facebook.presto.block.rle.RunLengthEncodedBlock.equalTo()

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        DynamicSliceOutput sliceOutput = new DynamicSliceOutput(1024);
        RunLengthBlockEncoding blockEncoding = new RunLengthBlockEncoding(new VariableWidthBlockEncoding(VARCHAR));
        blockEncoding.writeBlock(sliceOutput, expectedBlock);
        RunLengthEncodedBlock actualBlock = blockEncoding.readBlock(sliceOutput.slice().getInput());
        assertTrue(actualBlock.equalTo(0, expectedBlock, 0));
        BlockAssertions.assertBlockEquals(actualBlock, expectedBlock);
    }

    @Test
    public void testCreateBlockWriter()
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        SliceInput sliceInput = sliceOutput.slice().getInput();

        Block block = blockEncoding.readBlock(sliceInput);
        assertInstanceOf(block, RunLengthEncodedBlock.class);
        RunLengthEncodedBlock rleBlock = (RunLengthEncodedBlock) block;
        assertTrue(rleBlock.equalTo(0, expectedBlock, 0));
        assertEquals(rleBlock.getPositionCount(), 2);
        assertEquals(rleBlock.getSlice(0).toStringUtf8(), "alice");

        block = blockEncoding.readBlock(sliceInput);
        assertInstanceOf(block, RunLengthEncodedBlock.class);
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        assertEquals(rleBlock.getSlice(0).toStringUtf8(), "alice");

        block = blockEncoding.readBlock(sliceInput);
        assertInstanceOf(block, RunLengthEncodedBlock.class);
        rleBlock = (RunLengthEncodedBlock) block;
        assertTrue(rleBlock.equalTo(0, expectedBlock, 2));
        assertEquals(rleBlock.getPositionCount(), 4);
        assertEquals(rleBlock.getSlice(0).toStringUtf8(), "bob");

        block = blockEncoding.readBlock(sliceInput);
        assertInstanceOf(block, RunLengthEncodedBlock.class);
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        assertEquals(rleBlock.getSlice(0).toStringUtf8(), "bob");

        block = blockEncoding.readBlock(sliceInput);
        assertInstanceOf(block, RunLengthEncodedBlock.class);
        rleBlock = (RunLengthEncodedBlock) block;
        assertTrue(rleBlock.equalTo(0, expectedBlock, 6));
        assertEquals(rleBlock.getPositionCount(), 6);
        assertEquals(rleBlock.getSlice(0).toStringUtf8(), "charlie");

        assertFalse(sliceInput.isReadable());
    }
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        DynamicSliceOutput sliceOutput = new DynamicSliceOutput(1024);
        RunLengthBlockEncoding blockEncoding = new RunLengthBlockEncoding(new VariableWidthBlockEncoding(VARCHAR));
        blockEncoding.writeBlock(sliceOutput, expectedBlock);
        RunLengthEncodedBlock actualBlock = blockEncoding.readBlock(sliceOutput.slice().getInput());
        assertTrue(actualBlock.equalTo(0, expectedBlock, 0));
        BlockAssertions.assertBlockEquals(actualBlock, expectedBlock);
    }

    @Test
    public void testCreateBlockWriter()
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        SliceInput sliceInput = sliceOutput.slice().getInput();

        Block block = blockEncoding.readBlock(sliceInput);
        assertInstanceOf(block, RunLengthEncodedBlock.class);
        RunLengthEncodedBlock rleBlock = (RunLengthEncodedBlock) block;
        assertTrue(rleBlock.equalTo(0, expectedBlock, 0));
        assertEquals(rleBlock.getPositionCount(), 2);
        assertEquals(rleBlock.getSlice(0).toStringUtf8(), "alice");

        block = blockEncoding.readBlock(sliceInput);
        assertInstanceOf(block, RunLengthEncodedBlock.class);
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        assertEquals(rleBlock.getSlice(0).toStringUtf8(), "alice");

        block = blockEncoding.readBlock(sliceInput);
        assertInstanceOf(block, RunLengthEncodedBlock.class);
        rleBlock = (RunLengthEncodedBlock) block;
        assertTrue(rleBlock.equalTo(0, expectedBlock, 2));
        assertEquals(rleBlock.getPositionCount(), 4);
        assertEquals(rleBlock.getSlice(0).toStringUtf8(), "bob");

        block = blockEncoding.readBlock(sliceInput);
        assertInstanceOf(block, RunLengthEncodedBlock.class);
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        assertEquals(rleBlock.getSlice(0).toStringUtf8(), "bob");

        block = blockEncoding.readBlock(sliceInput);
        assertInstanceOf(block, RunLengthEncodedBlock.class);
        rleBlock = (RunLengthEncodedBlock) block;
        assertTrue(rleBlock.equalTo(0, expectedBlock, 6));
        assertEquals(rleBlock.getPositionCount(), 6);
        assertEquals(rleBlock.getSlice(0).toStringUtf8(), "charlie");

        assertFalse(sliceInput.isReadable());
    }
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