How to resolve the algorithm Test a function step by step in the jq programming language

Published on 12 May 2024 09:40 PM
#Jq

How to resolve the algorithm Test a function step by step in the jq programming language

Table of Contents

Problem Statement

Using a well-known testing-specific library/module/suite for your language, write some tests for your language's entry in Palindrome. If your language does not have a testing specific library well known to the language's community then state this or omit the language.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Test a function step by step in the jq programming language

Source code in the jq programming language

# Test case 1:
.
1
1

# Test case 2:
1+1
null
2

# Test case 3 (with the wrong result):
1+1
null
0

# A test case with a function definition:
def factorial: if . <= 0 then 1 else . * ((. - 1) | factorial) end; factorial
3
6


$ jq --run-tests < jq.tests

Testing '.' at line number 3
Testing '1+1' at line number 8
Testing '1+1' at line number 13
*** Expected 0, but got 2 for test at line number 15: 1+1
Testing 'def factorial: if . <= 0 then 1 else . * ((. - 1) | factorial) end; factorial' at line number 18
3 of 4 tests passed (0 malformed)


def factorial: if . <= 0 then 1 else . * ((. - 1) | factorial) end;

def palindrome: explode as $in | ($in|reverse) == $in;

import "library" as lib; lib::factorial
3
6

import "library" as lib; lib::palindrome
"salàlas"
true


jq --run-tests < test-library.txt

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