Version: 5.0
Test Support
1 Using Check Forms
| (require test-engine/scheme-tests) |
This module provides test forms for use in Racket programs, as well as parameters to configure the behavior of test reports.
Each check form may only occur at the top-level; results are collected and reported by the test function. Note that the check forms only register checks to be performed. The checks are actually run by the test function.
| (check-expect test expected) → void? |
| test : any/c |
| expected : any/c |
Accepts two value-producing expressions and structurally compares the
resulting values.
It is an error to produce a function value or an inexact number.
| (check-within test expected delta) → void? |
| test : any/c |
| expected : any/c |
| delta : number? |
Like check-expect, but with an extra expression that produces
a number delta. Every number in the first expression must be within
delta of the cooresponding number in the second expression.
It is an error to produce a function value.
| (check-error test msg) → void? |
| test : any/c |
| msg : string? |
Checks that evaluating the first expression signals an error, where
the error message matches the string.
| (check-member-of (test any/c) (expected any/c) ...) |
Accepts at least two value-producing expressions. Structurally compares the first
value to each value subsequent value specified.
It is an error to produce a function value.
| (check-range (test number/c) (min number/c) (max number/c)) |
Accepts three number-producing expressions. Performs the following comparison:
min <= test <= max.
Runs all of the tests specified by check forms in the current module
and reports the results. When using the gui module, the results are
provided in a separate window, otherwise the results are printed to
the current output port.
| (test-format) → (any/c . -> . string?) |
| (test-format format) → void? |
| format : (any/c . -> . string?) |
A parameter that stores the formatting function for the values tested
by the check forms.
| (test-silence) → boolean? |
| (test-silence silence?) → void? |
| silence? : any/c |
A parameter that stores a boolean, defaults to #f, that can be used to
suppress the printed summary from test.
| (test-execute) → boolean? |
| (test-execute execute?) → void? |
| execute? : any/c |
A parameter that stores a boolean, defaults to #t, that can be used to
suppress evaluation of test expressions.
2 GUI Interface
| (require test-engine/scheme-gui) |
This module requires GRacket and produces an independent window when displaying test results. It provides the same bindings as test-engine/scheme-tests.
3 Integrating languages with Test Engine
(To be written.)