What requirements are needed for expand the number of tests into a single UFT solution?
The maximum number of tests and/or business components allowed into a single UFT solution is limited to 10 by default (located at uftproperties.xml). This parameter can be modified. What processor and memory requirements are needed in case you want to expand to 20 the number of tests?
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To add more items to the solution you can do the following:
1. edit %appdata%/local/uft/uftproperties.xml
2. modify maximum tests in solution property to the required number
Also please keep on mind that it may take a while to open a solution and the memory consumption is also impacted so performance can be affected.
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As you pointed out, the maximum number of tests allowed per solution can be modified through that property value. Since this property/parameter/option is not officially documented, there is no official calculation to figure this out.
My two cents: I don't think the calculation for this can be exact since it may depend to the resources (ORs, libraries, datatables, etc.) linked to your tests that are loaded into memory while working with them. For example, let's say you have 20 small tests (few libraries, small ORs..,) in a solution and it works fine because UFT memory won't go too high. In the other hand, let's say you have another solution with 5 tests, but they have several huge resources linked and you need to open multiple of these resources at the same time. The second scenario might represent a bigger memory issue even though it is under the maximun number of tests that can be loaded in a solution.