[Solved] Identify the error in this regression test setup code:my_chain = SomeLangchainChain() my_chain.add_test_case(input="Test", expected="Result") result = my_chain.run_regression_test() | LangChain

LangChain - Evaluation and Testing

Identify the error in this regression test setup code:

my_chain = SomeLangchainChain()
my_chain.add_test_case(input="Test", expected="Result")
result = my_chain.run_regression_test()

AThe input parameter should be a list, not a string

BThe method run_regression_test() does not exist

CMissing import statement for SomeLangchainChain

DThe parameter name should be expected_output, not expected

Step-by-Step Solution

Solution:

Step 1: Check method parameter names
The method add_test_case expects parameter named expected_output, not expected.
Step 2: Identify the error cause
Using wrong parameter name causes the test case to not register properly.
Final Answer:
The parameter name should be expected_output, not expected -> Option D
Quick Check:
Correct parameter name = expected_output [OK]

Quick Trick: Use expected_output parameter for test cases [OK]

Common Mistakes:

MISTAKES

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