How do I create a BLOB object by Java without connection to database

Question

Like the title, I need to create a BLOB object for my unit test.

I read this

How to create BLOB object in java?

But it needs to connect to a specific database.

Thank you for taking a look.

Since BLOB is an interface, you could create your own mock/proxy which will facilitate your requirements — MadProgrammer
– MadProgrammer, Commented Jan 4, 2019 at 3:46

sweet suman · Accepted Answer · 2019-01-04 03:54:21Z

3

Since BLOB is an expensive resource and you are doing a test, mocking is a great way to create a BLOB.

Also with this, you can control what the BLOB is without actually reading through a large object.

How to do it depends entirely on the testing framework you are using. Example, this is how it is done in Mockito: Blob blob = mock(Blob.class);

answered Jan 4, 2019 at 3:54

sweet suman

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Comments

ktcl · Accepted Answer · 2019-01-15 10:55:09Z

2

I think this way is ok:

byte[] bytes = "A byte array".getBytes();
Blob blob = new javax.sql.rowset.serial.SerialBlob(bytes);

answered Jan 15, 2019 at 10:55

ktcl

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