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pull/1/head v0.0.1
Nise Void 2 years ago
commit
977c232584
Signed by: NiseVoid GPG Key ID: FBA14AC83EA602F3
2 changed files with 184 additions and 0 deletions
  1. +160
    -0
      assert.go
  2. +24
    -0
      helper.go

+ 160
- 0
assert.go View File

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package assert
import (
"reflect"
"runtime"
"testing"
)
// Assert is a helper for tests
type Assert func(bool, ...interface{})
// New returns a new Assert
func New(t *testing.T) Assert {
a := func(ok bool, msg ...interface{}) {
if !ok {
if msg == nil {
msg = []interface{}{`Assertion failed`}
}
msg = append(append([]interface{}{shell(1) + shell(97) + shell(41) + `FAIL!` + shell(0) + shell(1)}, msg...), shell(0), "\n")
t.Helper()
t.Error(msg...)
}
}
f := runtime.FuncForPC(reflect.ValueOf(a).Pointer())
ts[f] = t
return a
}
// TODO: Panics, Len
///// Boolean /////
// True asserts the given value is true
func (a Assert) True(actual bool, msg ...interface{}) {
t(a).Helper()
msg = prepMsg(msg, `Should be true, but it isn't`)
a(actual, msg...)
}
// False sserts the given value is false
func (a Assert) False(actual bool, msg ...interface{}) {
t(a).Helper()
msg = prepMsg(msg, `Should be false, but it isn't`)
a(!actual, msg...)
}
///// Nil /////
func isNil(val interface{}) bool {
if val == nil {
return true
}
v := reflect.ValueOf(val)
switch v.Kind() {
case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
return v.IsNil()
}
return false
}
// Nil asserts the given value is nil
func (a Assert) Nil(actual interface{}, msg ...interface{}) {
t(a).Helper()
msg = prepMsg(msg, `Should be nil, but it isn't`)
a(isNil(actual), msg...)
}
// NotNil sserts the given value is not nil
func (a Assert) NotNil(actual interface{}, msg ...interface{}) {
t(a).Helper()
msg = prepMsg(msg, `Should not be nil, but it is`)
a(!isNil(actual), msg...)
}
///// Errors /////
// Error asserts the given error is not nil
func (a Assert) Error(actual error, msg ...interface{}) {
t(a).Helper()
msg = prepMsg(msg, `Expected an error, but got nil`)
a(actual != nil, msg...)
}
// NoError asserts the given error is not nil
func (a Assert) NoError(actual error, msg ...interface{}) {
t(a).Helper()
msg = prepMsg(msg, `Expected no error, but got %#v`, actual)
a(actual == nil, msg...)
}
///// Comparisons /////
// Eq asserts the given values match
func (a Assert) Eq(expected, actual interface{}, msg ...interface{}) {
t(a).Helper()
msg = prepMsg(msg, `Expected %#v, but got %#v`, expected, actual)
a(expected == actual, msg...)
}
// Ne asserts the given values don't match
func (a Assert) Ne(expected, actual interface{}, msg ...interface{}) {
t(a).Helper()
msg = prepMsg(msg, `Should not be %#v, but it is`, expected)
a(expected != actual, msg...)
}
///// Lists /////
// Contains asserts the expected value is in the given list
func (a Assert) Contains(expected, list interface{}, msg ...interface{}) {
t(a).Helper()
rlist := reflect.ValueOf(list)
a(rlist.Kind() == reflect.Slice || rlist.Kind() == reflect.Array, `Can only call assert.Contains on a slice or array`)
for i := 0; i < rlist.Len(); i++ {
if rlist.Index(i).Interface() == expected {
return
}
}
msg = prepMsg(msg, `Expected %#v to be in %#v, but it isn't`, expected, list)
a(false, msg...)
}
// SameElements asserts the values have the same elements. It ignores the order of the elements
func (a Assert) SameElements(expected, actual interface{}, msg ...interface{}) {
t(a).Helper()
rexpected, ractual := reflect.ValueOf(expected), reflect.ValueOf(actual)
a(rexpected.Kind() == reflect.Slice || rexpected.Kind() == reflect.Array, `Can only call assert.SameElements on a slice or array`)
a(ractual.Kind() == reflect.Slice || ractual.Kind() == reflect.Array, `Can only call assert.SameElements on a slice or array`)
msg = prepMsg(msg, `Expected elements of %#v to match %#v, but they don't`, expected, actual)
if rexpected.Len() != ractual.Len() {
a(false, msg...)
return
}
var same int
for i := 0; i < rexpected.Len(); i++ {
for j := 0; j < ractual.Len(); j++ {
if rexpected.Index(i).Interface() == ractual.Index(j).Interface() {
same++
break
}
}
}
if same == rexpected.Len() {
return
}
a(false, msg...)
}

+ 24
- 0
helper.go View File

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package assert
import (
"fmt"
"reflect"
"runtime"
"strconv"
"testing"
)
func prepMsg(msg []interface{}, format string, args ...interface{}) []interface{} {
return append(msg, "\n\n", fmt.Sprintf(format, args...))
}
func shell(i int) string {
return "\x1B[" + strconv.Itoa(i) + "m"
}
var ts = map[*runtime.Func]*testing.T{}
func t(a Assert) *testing.T {
f := runtime.FuncForPC(reflect.ValueOf(a).Pointer())
return ts[f]
}

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