16 lines
841 B
Text
16 lines
841 B
Text
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Test::Deep gives you very flexible ways to check that the result
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you got is the result you were expecting. At its simplest it compares
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two structures by going through each level, ensuring that the values
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match, that arrays and hashes have the same elements and that
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references are blessed into the correct class. It also handles
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circular data structures without getting caught in an infinite
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loop.
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Where it becomes more interesting is in allowing you to do something
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besides simple exact comparisons. With strings, the = operator
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checks that 2 strings are exactly equal but sometimes that's not
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what you want. When you don't know exactly what the string should
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be but you do know some things about how it should look, = is no
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good and you must use pattern matching instead. Test::Deep provides
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pattern matching for complex data structures.
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