github.com/emcfarlane/larking@v0.0.0-20220605172417-1704b45ee6c3/builder/graph_test.go (about)

     1  package builder
     2  
     3  import (
     4  	"context"
     5  	"io/ioutil"
     6  	"testing"
     7  
     8  	"github.com/go-logr/logr"
     9  	"github.com/go-logr/logr/testr"
    10  )
    11  
    12  func TestGraph(t *testing.T) {
    13  	ctx := logr.NewContext(context.Background(), testr.New(t))
    14  	a, err := Build(ctx, "testdata/archive/helloc.tar.gz", func(o *buildOptions) {
    15  		o.run = false
    16  	})
    17  	if err != nil {
    18  		t.Fatal(err)
    19  	}
    20  	t.Log("action", a)
    21  	t.Log("deps", a.Deps)
    22  	if len(a.Deps) != 1 {
    23  		t.Errorf("missing deps: %v", a.Deps)
    24  	}
    25  
    26  	dot, err := generateDot(a)
    27  	if err != nil {
    28  		t.Fatal(err)
    29  	}
    30  	t.Log(string(dot))
    31  
    32  	svg, err := dotToSvg(dot)
    33  	if err != nil {
    34  		t.Fatal(err)
    35  	}
    36  	t.Log(string(svg))
    37  
    38  	if len(svg) == 0 {
    39  		t.Error("missing svg")
    40  	}
    41  
    42  	if err := ioutil.WriteFile("graph.svg", svg, 0666); err != nil {
    43  		t.Fatal(err)
    44  	}
    45  }