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Testing TwoSum Algorithm Implementations in JCSprout

This test suite validates the TwoSum algorithm implementation, focusing on finding pairs of numbers that sum to a target value. The tests examine two different approaches to solving the Two Sum problem, ensuring correct functionality and performance.

Test Coverage Overview

The test suite provides coverage for two distinct implementations of the TwoSum algorithm (getTwo1 and getTwo2).

Key areas covered include:

Basic array input validation with positive integers
Target sum verification
Array index pair identification
Edge case handling for sum combinations

Implementation Analysis

The testing approach utilizes JUnit 4 framework for unit testing, with each method tested independently. The implementation employs FastJSON for result verification and output formatting.

Testing patterns include:

Individual method isolation
Direct input-output validation
JSON-based result formatting
Consistent test data across methods

Technical Details

Testing infrastructure includes:

JUnit 4 testing framework
Alibaba FastJSON library for JSON handling
Java array manipulation
System output validation
Exception handling verification

Best Practices Demonstrated

The test suite demonstrates several testing best practices including method isolation, consistent test data, and clear test method naming.

Notable practices:

Descriptive test method names
Consistent object initialization
Clear test case separation
Proper exception handling
Structured input data preparation

crossoverjie/jcsprout

src/test/java/com/crossoverjie/algorithm/TwoSumTest.java

            
package com.crossoverjie.algorithm;

import com.alibaba.fastjson.JSON;
import org.junit.Test;

public class TwoSumTest {
    @Test
    public void getTwo1() throws Exception {
        TwoSum twoSum = new TwoSum() ;
        int[] nums ={1,3,5,7};
        int[] two1 = twoSum.getTwo1(nums, 12);
        System.out.println(JSON.toJSONString(two1));

    }

    @Test
    public void getTwo2(){
        TwoSum twoSum = new TwoSum() ;
        int[] nums ={1,3,5,7};
        int[] two = twoSum.getTwo2(nums, 10);
        System.out.println(JSON.toJSONString(two));

    }

}