Test Case Generator for Edge Cases | Dataford Interview Questions

Write a test case generator that creates representative inputs for a feature based on specified rules and edge cases.

Implement generate_test_cases(rules, seed, count), returning a list of objects with input, valid, and covers fields. rules contains typed field specifications, optional required fields, relational constraints, and per-field edge-case values. Generated inputs must be deterministic for a given seed, include every configured edge case when count permits, and fill remaining cases with valid randomized values. Mark each case as valid according to the rules and identify covered edge cases.

Constraints

rules contains at least one field
Supported field types are int, string, enum, and bool
Integer fields provide min and max bounds
String fields may provide min_length and max_length
Enum fields provide a non-empty values array
count is at least the total number of configured edge-case values
0 <= count <= 10000
Relation operators are <, <=, >, >=, ==, or !=

Function Signature

def generate_test_cases(rules, seed, count):

Your question is Test Case Generator for Edge Cases. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Problem

Write a test case generator that creates representative inputs for a feature based on specified rules and edge cases.

Constraints

rules contains at least one field
Supported field types are int, string, enum, and bool
Integer fields provide min and max bounds
String fields may provide min_length and max_length
Enum fields provide a non-empty values array
count is at least the total number of configured edge-case values
0 <= count <= 10000
Relation operators are <, <=, >, >=, ==, or !=

Function Signature

def generate_test_cases(rules, seed, count):

Your question is Test Case Generator for Edge Cases. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.