This is my code stub that catches nullPointerException and I am trying to pass coverage on the 2nd test method testAccountTerritoryUpdateNegative() below.  I also know that I am not supposed to hardcode ID or Name in the test method but I will fix this later since I'm just trying to implement the test to see if it passes. How come the soql in my test method brings back zero rows? When I run that soql in the schema explorer, it brings back the record.  hmmmmmmm

System.QueryException: List has no rows for assignment to SObject

Class.AccountTests.testAccountTerritoryUpdateNegative: line 51, column 1

catch (System.NullPointerException e)
{
for(Account a: aList)
{
a.addError('There was an error with the record since a field was not populated correctly, please contact IT at 1888-888-8888 for asssitance, error number ' + e.getLineNumber());
}
}

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
@isTest private static void testAccountTerritoryUpdateNegative()
{
Account testAccount =[select id, billingstreet from account where name = 'test compant'];
try
{
testAccount.BillingStreet ='test negative street';
Test.startTest();
update testAccount;
Test.stopTest();
}
catch(System.NullPointerException e)
{
System.assertEquals('NullPointerException' , e.getTypeName());
}

}