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.TH HYPOTHESIS 1 "" "@VERSION@" "Python Tools"
.SH NAME
hypothesis \- helper tool for property-based testing
.SH SYNOPSIS
.SY hypothesis
.B codemod
.I PATH
.YS
.SY hypothesis
.B write
.RI [ OPTIONS ]
.I FUNCTION
.RI [ FUNCTION
.IR \.\.\. ]
.YS
.SH DESCRIPTION
.B hypothesis
helps you write and maintain property-based tests in your Python project.
.PP
.B hypothesis codemod
refactors deprecated or inefficient code, rewriting files in place.
It has no additional options.
.PP
.B hypothesis write
writes property-based tests for you. Type annotations are helpful but not
required. The following options are recognized:
.TP
.B \-\-roundtrip
write roundtrip tests for write/read or encode/decode functions.
.IP
Example:
.B hypothesis write \-\-roundtrip json.dumps json.loads
.TP
.B \-\-equivalent
write tests whether two functions behave identically.
.IP
Example:
.B hypothesis write \-\-equivalent ast.literal_eval eval
.TP
.B \-\-errors\-equivalent
like
.BR \-\-equivalent ,
but also allows consistent errors.
.TP
.B \-\-idempotent
write tests whether a function is idempotent.
.TP
.B \-\-binary\-op
write tests for associativity, commutativity and identitiy element.
.IP
Example:
.B hypothesis write \-\-binary\-op operator.add
.TP
.BR \-\-except " " \fICLASS\fR
dotted name of exception to ignore. can be specified multiple times.
.TP
.BR \-\-annotate ", " \-\-no-annotate
force tests to be type-annotated (or not).
.TP
.BI \-\-style= STYLE
write tests as
.B pytest
functions
or
.B unittest
methods.
.SH AUTHORS
.B hypothesis
has been conceived by David R. McIver and written with the help of many
contributors.
.PP
This manual page has been written by
.MT roehling@debian.org
Timo R\[u00F6]hling
.ME
for Debian and may be reused without restriction.
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