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Testing TwoSum Algorithm Implementations in hello-algo

This test suite validates the TwoSum algorithm implementation, testing both brute force and hash table approaches for finding pairs of numbers that sum to a target value. The tests ensure correct functionality of two distinct solution methods in Go.

Test Coverage Overview

The test coverage focuses on validating two implementation approaches for the TwoSum problem.

Tests brute force method functionality
Validates hash table implementation efficiency
Verifies correct pair identification for target sum
Handles standard input array scenarios

Implementation Analysis

The testing approach implements a comparative analysis between two distinct TwoSum solutions. The test structure utilizes Go’s native testing package with a clear setup of test cases and expected outcomes.

Parallel testing of multiple implementations
Direct output verification using fmt.Println
Structured test case organization

Technical Details

Go testing framework (testing package)
Standard test function naming convention (TestTwoSum)
Slice-based test data structure
fmt package for output formatting
Integer array manipulation

Best Practices Demonstrated

The test implementation showcases clean code organization and testing methodology best practices.

Clear test case separation
Consistent method naming conventions
Comparative implementation testing
Documented test structure with comments
Modular function testing approach

krahets/hello-algo

zh-hant/codes/go/chapter_searching/two_sum_test.go

            
// File: two_sum_test.go
// Created Time: 2022-11-25
// Author: reanon ([email protected])

package chapter_searching

import (
	"fmt"
	"testing"
)

func TestTwoSum(t *testing.T) {
	// ======= Test Case =======
	nums := []int{2, 7, 11, 15}
	target := 13

	// ====== Driver Code ======
	// 方法一：暴力解法
	res := twoSumBruteForce(nums, target)
	fmt.Println("方法一 res =", res)
	// 方法二：雜湊表
	res = twoSumHashTable(nums, target)
	fmt.Println("方法二 res =", res)
}