flagdefs_test.go

     1  // Copyright 2019 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  package test
     6  
     7  import (
     8  	"cmd/go/internal/test/internal/genflags"
     9  	"flag"
    10  	"reflect"
    11  	"strings"
    12  	"testing"
    13  )
    14  
    15  func TestPassFlagToTestIncludesAllTestFlags(t *testing.T) {
    16  	flag.VisitAll(func(f *flag.Flag) {
    17  		if !strings.HasPrefix(f.Name, "test.") {
    18  			return
    19  		}
    20  		name := strings.TrimPrefix(f.Name, "test.")
    21  		switch name {
    22  		case "testlogfile", "paniconexit0", "fuzzcachedir", "fuzzworker":
    23  			// These are internal flags.
    24  		default:
    25  			if !passFlagToTest[name] {
    26  				t.Errorf("passFlagToTest missing entry for %q (flag test.%s)", name, name)
    27  				t.Logf("(Run 'go generate cmd/go/internal/test' if it should be added.)")
    28  			}
    29  		}
    30  	})
    31  
    32  	for name := range passFlagToTest {
    33  		if flag.Lookup("test."+name) == nil {
    34  			t.Errorf("passFlagToTest contains %q, but flag -test.%s does not exist in test binary", name, name)
    35  		}
    36  
    37  		if CmdTest.Flag.Lookup(name) == nil {
    38  			t.Errorf("passFlagToTest contains %q, but flag -%s does not exist in 'go test' subcommand", name, name)
    39  		}
    40  	}
    41  }
    42  
    43  func TestVetAnalyzersSetIsCorrect(t *testing.T) {
    44  	vetAns, err := genflags.VetAnalyzers()
    45  	if err != nil {
    46  		t.Fatal(err)
    47  	}
    48  
    49  	want := make(map[string]bool)
    50  	for _, a := range vetAns {
    51  		want[a] = true
    52  	}
    53  
    54  	if !reflect.DeepEqual(want, passAnalyzersToVet) {
    55  		t.Errorf("stale vet analyzers: want %v; got %v", want, passAnalyzersToVet)
    56  		t.Logf("(Run 'go generate cmd/go/internal/test' to refresh the set of analyzers.)")
    57  	}
    58  }
    59
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