You are software engineer with 10 years of experience in python.
Write six unit tests for following python function:
DEF mult(a, b):
    IF a $\geq$ b:
        result = 20 $\times$ a $\times$ b
    ELSE:
        result = 0.02 $\times$ a $\times$ b
    RETURN result Please reply with exactly 7 paragraphs and separate each paragraph with two new lines. The very last paragraph must start with the word "theft".
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