github.com/looshlee/beatles@v0.0.0-20220727174639-742810ab631c/pkg/testutils/condition_test.go (about)

     1  // Copyright 2018 Authors of Cilium
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  // +build !privileged_tests
    16  
    17  package testutils
    18  
    19  import (
    20  	"time"
    21  
    22  	. "gopkg.in/check.v1"
    23  )
    24  
    25  func (s *TestUtilsSuite) TestCondition(c *C) {
    26  	c.Assert(WaitUntil(func() bool { return false }, 50*time.Millisecond), Not(IsNil))
    27  	c.Assert(WaitUntil(func() bool { return true }, 50*time.Millisecond), IsNil)
    28  
    29  	counter := 0
    30  	countTo5 := func() bool {
    31  		if counter > 5 {
    32  			return true
    33  		}
    34  		counter++
    35  		return false
    36  	}
    37  
    38  	c.Assert(WaitUntil(countTo5, 1*time.Millisecond), Not(IsNil))
    39  
    40  	counter = 0
    41  	c.Assert(WaitUntil(countTo5, 100*time.Millisecond), IsNil)
    42  }