cgreen

Cgreen Cheat Sheet

Pre-amble

#include <cgreen/cgreen.h>
#include <cgreen/mocks.h>

Describe( <sut> );
BeforeEach( <sut> ) {}
AfterEach( <sut> ) {}

A test

Ensure( <sut>, <test_name> ) {
    assert_that( <expression> );
    assert_that( <expression>, <constraint> );
    assert_that_double(...);
}

Constraints

is_true
is_false
is_null
is_non_null
is_equal_to( <value> )
is_equal_to_hex( <value> )
is_not_equal_to( <value> )
is_greater_than( <value> )
is_less_than( <value> )

Structs and general data

is_equal_to_contents_of( <pointer>, <size> )
is_not_equal_to_contents_of( <pointer>, <size> )

Strings

is_equal_to_string( <value> )
is_not_equal_to_string( <value> )
contains_string( <value> )
does_not_contain_string( <value> )
begins_with_string( <value> )
does_not_begin_with_string( <value> )
ends_with_string( <value> )
does_not_end_with_string( <value> )

Floating point values (Doubles)

is_equal_to_double( <value> )
is_not_equal_to_double( <value> )
is_less_than_double( <value> )
is_greater_than_double( <value> )

significant_figures_for_assert_double_are( <figures> )

Mocks

<qualifiers> <function_name> ( <parameters> ) {
    mock( <parameters> );
    mock( box_double( <parameter> ) );
    return ( <type> ) mock( <parameters> );
    return mock_double( <parameters> );
}

Ensure( <sut> ) {
    expect(<function> {, when(<parameter>, <constraint> ) }
                      [, <returns> ]
                      [, times( <n> ) ] );
    always_expect(...);
    never_expect(...);
}

cgreen_mocks_are( strict_mocks | loose_mocks | learning_mocks );

Returns

will_return( <value> )
will_return_double( <value> )
will_return_by_value( <value>, <size> )
with_side_effect( <function>, <pointer_to_data> )
will_set_contents_of_parameter( <parameter_name>, <value>, <size> )

C++

namespace cgreen;
assert_throws( <exception>, <expression>);

Minimal Makefile

all: $(UNIT)_tests.so
    cgreen-runner $^

$(UNIT)_tests.so: $(UNIT)_tests.o $(UNIT).o
    $(CC) -shared -o $@ $^ -lcgreen

%.o: %.c
    $(CC) $(CFLAGS) -fPIC -c -o $@ $^

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