80 lines
1.8 KiB
Go
80 lines
1.8 KiB
Go
package main
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/* Fuzz testing or fuzzing is an automated software testing method
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that injects invalid, malformed, or unexpected inputs into a system
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to reveal software defects and vulnerabilities.
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A fuzzing tool injects these inputs into the system and then monitors for exceptions such as crashes or information leakage
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*/
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//A simple way of using fuzzing to test a program using a claculator instance
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import (
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"errors"
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"fmt"
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"testing"
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)
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/*A calculator for performing simple arithmetic operations*/
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func calculator(num1, num2 float64, operator string) (float64, error) {
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var result float64
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switch operator {
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case "-":
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result = num1 - num2
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case "+":
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result = num1 + num2
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case "/":
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if num2 == 0 || num1 == 0 {
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return 0, errors.New("Division by 0")
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}
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case "*":
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result = num1 * num2
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}
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return result, nil
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}
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/*Accepts inputs, calls the calculator function and executes inputs and return results*/
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func InputCalculator(data float64) float64 {
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inputcases := []struct {
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input1 float64
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input2 float64
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operator string
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output float64
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}{
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{1, 3, "+", 4},
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{4, 6, "-", -2},
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{0, 0, "/", 0},
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{9, 2, "*", 18},
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{1.2, 2.4, "*", 2.88},
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{2, 6, "+", 9},
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}
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success := 1
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for _, input := range inputcases {
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result, _ := calculator(input.input1, input.input2, input.operator)
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if result != input.output {
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fmt.Errorf("Calculator(%f,%f,%s)=%f; expected %f", input.input1, input.input2,
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input.operator, result, input.output)
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}
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return result
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}
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return float64(success)
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}
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// testing the Calculator inputs function
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func FuzzTestInput(f *testing.F) {
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f.Fuzz(func(t *testing.T, data float64) {
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_ = InputCalculator(data)
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})
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}
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// Tests the calculator function
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func FuzzTestCalculator(f *testing.F) {
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f.Fuzz(func(t *testing.T, num1, num2 float64, operator string) {
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_, _ = calculator(num1, num2, operator)
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})
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}
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