Overview

Minitest provides many default assertions for core C data types to get you started. You can also write your own extensions for custom data types.

Core Assertion Types


  • int, int[] (int*)
  • char, char*
  • short, short[] (short*)
  • long, long[] (long*)
  • double, double[] (double*)
  • float, float[] (float*)
  • void*
  • size_t
  • unsigned char
  • unsigned short
  • unsigned int
  • unsigned long

Syntax


All assertions in minitest begin with the expect(actual) macro. Expect determines the appropriate assertion function to use for the data type of actual – including any extensions you create.

Immediately after expect() you must define to in order to generate the proper assertion function call.

expect(actual) to [not | be | have] [assertion_type | assertion_type(expected)]

Depending on your assertion, you can invert the assertion with the optional not macro. be and have are also optional and offer no specific functionality other than assertion syntactic sugar.

Some assertion types for the expected result accept parameters, others do not. Those that do not are prefixed with be_ and assert a specific data type. For example:

expect(actual) to be_null

All other assertions take in the expected argument.