github.com/cockroachdb/tools@v0.0.0-20230222021103-a6d27438930d/go/callgraph/vta/vta_go117_test.go (about)

     1  // Copyright 2021 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  //go:build go1.17
     6  // +build go1.17
     7  
     8  package vta
     9  
    10  import (
    11  	"testing"
    12  
    13  	"golang.org/x/tools/go/callgraph/cha"
    14  	"golang.org/x/tools/go/ssa"
    15  	"golang.org/x/tools/go/ssa/ssautil"
    16  )
    17  
    18  func TestVTACallGraphGo117(t *testing.T) {
    19  	file := "testdata/src/go117.go"
    20  	prog, want, err := testProg(file, ssa.BuilderMode(0))
    21  	if err != nil {
    22  		t.Fatalf("couldn't load test file '%s': %s", file, err)
    23  	}
    24  	if len(want) == 0 {
    25  		t.Fatalf("couldn't find want in `%s`", file)
    26  	}
    27  
    28  	g, _ := typePropGraph(ssautil.AllFunctions(prog), cha.CallGraph(prog))
    29  	if gs := vtaGraphStr(g); !subGraph(want, gs) {
    30  		t.Errorf("`%s`: want superset of %v;\n got %v", file, want, gs)
    31  	}
    32  }