github.com/wzzhu/tensor@v0.9.24/defaultenginefloat64_test.go (about)

     1  package tensor
     2  
     3  import (
     4  	"testing"
     5  	"testing/quick"
     6  )
     7  
     8  func TestFloat64Engine_makeArray(t *testing.T) {
     9  
    10  	// the uint16 is just to make sure that tests are correctly run.
    11  	// we don't want the quicktest to randomly generate a size that is so large
    12  	// that Go takes a long time just to allocate. We'll test the other sizes (like negative numbers)
    13  	// after the quick test.
    14  	f := func(sz uint16) bool {
    15  		size := int(sz)
    16  		e := Float64Engine{StdEng{}}
    17  		dt := Float64
    18  		arr := array{}
    19  
    20  		e.makeArray(&arr, dt, size)
    21  
    22  		if len(arr.Raw) != size*8 {
    23  			t.Errorf("Expected raw to be size*8. Got %v instead", len(arr.Raw))
    24  			return false
    25  		}
    26  		v, ok := arr.Data().([]float64)
    27  		if !ok {
    28  			t.Errorf("Expected v to be []float32. Got %T instead", arr.Data())
    29  			return false
    30  		}
    31  
    32  		if len(v) != size {
    33  			return false
    34  		}
    35  		return true
    36  	}
    37  
    38  	if err := quick.Check(f, nil); err != nil {
    39  		t.Errorf("Quick test failed %v", err)
    40  	}
    41  
    42  }