github.com/influx6/npkg@v0.8.8/nbytes/seeker/seeker_test.go (about)

     1  package seeker_test
     2  
     3  import (
     4  	"bytes"
     5  	"testing"
     6  
     7  	"github.com/influx6/npkg/nbytes/seeker"
     8  	tests "github.com/influx6/npkg/ntests"
     9  )
    10  
    11  func TestBufferedPeeker(t *testing.T) {
    12  	content := []byte("Thunder world, Reckage before the dawn")
    13  	buff := seeker.NewBufferedPeeker(content)
    14  
    15  	if buff.Length() != len(content) {
    16  		tests.Failed("Should have same length has content")
    17  	}
    18  	tests.Passed("Should have same length has content")
    19  
    20  	buff.Peek(2)
    21  	if buff.Area() != len(content) {
    22  		tests.Failed("Should have same length has content")
    23  	}
    24  	tests.Passed("Should have same length has content")
    25  
    26  	next := buff.Next(2)
    27  	if !bytes.Equal(next, content[:2]) {
    28  		tests.Failed("Should match sub elements of same area")
    29  	}
    30  	tests.Passed("Should match sub elements of same area")
    31  
    32  	next = buff.Next(100)
    33  	if !bytes.Equal(next, content[2:]) {
    34  		tests.Failed("Should match sub elements of rest of slice")
    35  	}
    36  	tests.Passed("Should match sub elements of rest of slice")
    37  
    38  	if len(buff.Peek(2)) != 0 {
    39  		tests.Failed("Should have index way past length of slice")
    40  	}
    41  	tests.Passed("Should have index way past length of slice")
    42  
    43  	buff.Reverse(5)
    44  	if len(buff.Peek(2)) == 0 {
    45  		tests.Failed("Should have index way back within slice")
    46  	}
    47  	tests.Passed("Should have index way back within slice")
    48  
    49  	buff.Reverse(100)
    50  	next = buff.Next(2)
    51  	if !bytes.Equal(next, content[:2]) {
    52  		tests.Failed("Should match sub elements of same area")
    53  	}
    54  	tests.Passed("Should match sub elements of same area")
    55  }