v / vlib / cli / flag_test.v
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1import cli


2


3fn test_if_string_flag_parses() {


4    mut flag := cli.Flag{


5        flag: .string


6        name: 'flag'


7    }


8    flag.parse(['-flag', 'value1'], false) or { panic(err) }


9    mut value := flag.get_string() or { panic(err) }


10    assert value == 'value1'


11


12    flag = cli.Flag{


13        flag: .string


14        name: 'flag'


15    }


16    flag.parse(['-flag=value2'], false) or { panic(err) }


17    value = flag.get_string() or { panic(err) }


18    assert value == 'value2'


19


20    flag = cli.Flag{


21        flag: .string_array


22        name: 'flag'


23    }


24    flag.parse(['-flag=value1'], false) or { panic(err) }


25    flag.parse(['-flag=value2'], false) or { panic(err) }


26    mut values := flag.get_strings() or { panic(err) }


27    assert values == ['value1', 'value2']


28}


29


30fn test_if_bool_flag_parses() {


31    mut flag := cli.Flag{


32        flag: .bool


33        name: 'flag'


34    }


35    mut value := false


36    flag.parse(['-flag'], false) or { panic(err) }


37    value = flag.get_bool() or { panic(err) }


38    assert value == true


39    flag.parse(['-flag', 'false'], false) or { panic(err) }


40    value = flag.get_bool() or { panic(err) }


41    assert value == false


42    flag.parse(['-flag', 'true'], false) or { panic(err) }


43    value = flag.get_bool() or { panic(err) }


44    assert value == true


45    flag.parse(['-flag=false'], false) or { panic(err) }


46    value = flag.get_bool() or { panic(err) }


47    assert value == false


48    flag.parse(['-flag=true'], false) or { panic(err) }


49    value = flag.get_bool() or { panic(err) }


50    assert value == true


51}


52


53fn test_if_int_flag_parses() {


54    mut flag := cli.Flag{


55        flag: .int


56        name: 'flag'


57    }


58


59    mut value := 0


60    flag.parse(['-flag', '42'], false) or { panic(err) }


61    value = flag.get_int() or { panic(err) }


62    assert value == 42


63


64    flag = cli.Flag{


65        flag: .int


66        name: 'flag'


67    }


68


69    flag.parse(['-flag=45'], false) or { panic(err) }


70    value = flag.get_int() or { panic(err) }


71    assert value == 45


72


73    flag = cli.Flag{


74        flag: .int_array


75        name: 'flag'


76    }


77


78    flag.parse(['-flag=42'], false) or { panic(err) }


79    flag.parse(['-flag=45'], false) or { panic(err) }


80    mut values := flag.get_ints() or { panic(err) }


81    assert values == [42, 45]


82}


83


84fn test_if_float_flag_parses() {


85    mut flag := cli.Flag{


86        flag: .float


87        name: 'flag'


88    }


89    mut value := f64(0)


90    flag.parse(['-flag', '3.14158'], false) or { panic(err) }


91    value = flag.get_float() or { panic(err) }


92    assert value == 3.14158


93


94    flag = cli.Flag{


95        flag: .float


96        name: 'flag'


97    }


98


99    flag.parse(['-flag=3.14159'], false) or { panic(err) }


100    value = flag.get_float() or { panic(err) }


101    assert value == 3.14159


102


103    flag = cli.Flag{


104        flag: .float_array


105        name: 'flag'


106    }


107


108    flag.parse(['-flag=3.1'], false) or { panic(err) }


109    flag.parse(['-flag=1.3'], false) or { panic(err) }


110    mut values := flag.get_floats() or { panic(err) }


111    assert values == [3.1, 1.3]


112}


113


114fn test_if_flag_parses_with_abbrev() {


115    mut flag := cli.Flag{


116        flag:   .bool


117        name:   'flag'


118        abbrev: 'f'


119    }


120    mut value := false


121    flag.parse(['--flag'], true) or { panic(err) }


122    value = flag.get_bool() or { panic(err) }


123    assert value == true


124


125    value = false


126    flag = cli.Flag{


127        flag:   .bool


128        name:   'flag'


129        abbrev: 'f'


130    }


131    flag.parse(['-f'], true) or { panic(err) }


132    value = flag.get_bool() or { panic(err) }


133    assert value == true


134}


135


136fn test_if_multiple_value_on_single_value() {


137    mut flag := cli.Flag{


138        flag: .float


139        name: 'flag'


140    }


141


142    flag.parse(['-flag', '3.14158'], false) or { panic(err) }


143


144    if _ := flag.parse(['-flag', '3.222'], false) {


145        panic("No multiple value flag don't raise an error!")


146    } else {


147        assert true


148    }


149}


150


151fn test_default_value() {


152    mut flag := cli.Flag{


153        flag:          .float


154        name:          'flag'


155        default_value: ['1.234']


156    }


157


158    flag.parse(['-flag', '3.14158'], false) or { panic(err) }


159    mut value := flag.get_float() or { panic(err) }


160    assert value == 3.14158


161


162    flag = cli.Flag{


163        flag:          .float


164        name:          'flag'


165        default_value: ['1.234']


166    }


167


168    flag.parse([''], false) or { panic(err) }


169    value = flag.get_float() or { panic(err) }


170    assert value == 1.234


171}


172