Package org.teiid.query.optimizer.relational

Examples of org.teiid.query.optimizer.relational.RuleStack.pop()

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    public void testInitialization() {
        RuleStack stack = new RuleStack();
        assertEquals("Initial stack is not empty", true, stack.isEmpty()); //$NON-NLS-1$
        assertEquals("Initial size is not 0", 0, stack.size()); //$NON-NLS-1$
        assertNull("Top is not null", stack.pop()); //$NON-NLS-1$
    }
   
    public void helpTestPop(RuleStack stack, OptimizerRule expectedPop, int expectedSize) {
        OptimizerRule out = stack.pop();
        int outSize = stack.size();
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        // Remove all instances of ASSIGN_OUTPUT_ELEMENTS
        stack.remove(RuleConstants.ASSIGN_OUTPUT_ELEMENTS);
       
        // Verify size and pop'ed values
        assertEquals(1, stack.size());
        assertEquals(RuleConstants.COLLAPSE_SOURCE, stack.pop());
        assertEquals(null, stack.pop());
    }
   
    public void testContains() {
        // Set up
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        stack.remove(RuleConstants.ASSIGN_OUTPUT_ELEMENTS);
       
        // Verify size and pop'ed values
        assertEquals(1, stack.size());
        assertEquals(RuleConstants.COLLAPSE_SOURCE, stack.pop());
        assertEquals(null, stack.pop());
    }
   
    public void testContains() {
        // Set up
        RuleStack stack = new RuleStack();
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