238 lines
6.6 KiB
Go
238 lines
6.6 KiB
Go
/*
|
|
* Copyright (c) 2013 Dave Collins <dave@davec.name>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
package spew_test
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"github.com/davecgh/go-spew/spew"
|
|
"io/ioutil"
|
|
"os"
|
|
"testing"
|
|
)
|
|
|
|
// spewFunc is used to identify which public function of the spew package or
|
|
// ConfigState a test applies to.
|
|
type spewFunc int
|
|
|
|
const (
|
|
fCSFdump spewFunc = iota
|
|
fCSFprint
|
|
fCSFprintf
|
|
fCSFprintln
|
|
fCSPrint
|
|
fCSPrintln
|
|
fCSErrorf
|
|
fCSNewFormatter
|
|
fErrorf
|
|
fFprint
|
|
fFprintln
|
|
fPrint
|
|
fPrintln
|
|
)
|
|
|
|
// Map of spewFunc values to names for pretty printing.
|
|
var spewFuncStrings = map[spewFunc]string{
|
|
fCSFdump: "ConfigState.Fdump",
|
|
fCSFprint: "ConfigState.Fprint",
|
|
fCSFprintf: "ConfigState.Fprintf",
|
|
fCSFprintln: "ConfigState.Fprintln",
|
|
fCSPrint: "ConfigState.Print",
|
|
fCSPrintln: "ConfigState.Println",
|
|
fCSErrorf: "ConfigState.Errorf",
|
|
fCSNewFormatter: "ConfigState.NewFormatter",
|
|
fErrorf: "spew.Errorf",
|
|
fFprint: "spew.Fprint",
|
|
fFprintln: "spew.Fprintln",
|
|
fPrint: "spew.Print",
|
|
fPrintln: "spew.Println",
|
|
}
|
|
|
|
func (f spewFunc) String() string {
|
|
if s, ok := spewFuncStrings[f]; ok {
|
|
return s
|
|
}
|
|
return fmt.Sprintf("Unknown spewFunc (%d)", int(f))
|
|
}
|
|
|
|
// spewTest is used to describe a test to be performed against the public
|
|
// functions of the spew package or ConfigState.
|
|
type spewTest struct {
|
|
cs *spew.ConfigState
|
|
f spewFunc
|
|
format string
|
|
in interface{}
|
|
want string
|
|
}
|
|
|
|
// spewTests houses the tests to be performed against the public functions of
|
|
// the spew package and ConfigState.
|
|
//
|
|
// These tests are only intended to ensure the public functions are exercised
|
|
// and are intentionally not exhaustive of types. The exhaustive type
|
|
// tests are handled in the dump and format tests.
|
|
var spewTests []spewTest
|
|
|
|
// redirStdout is a helper function to return the standard output from f as a
|
|
// byte slice.
|
|
func redirStdout(f func()) ([]byte, error) {
|
|
tempFile, err := ioutil.TempFile("", "ss-test")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
fileName := tempFile.Name()
|
|
defer os.Remove(fileName) // Ignore error
|
|
|
|
origStdout := os.Stdout
|
|
os.Stdout = tempFile
|
|
f()
|
|
os.Stdout = origStdout
|
|
tempFile.Close()
|
|
|
|
return ioutil.ReadFile(fileName)
|
|
}
|
|
|
|
func initSpewTests() {
|
|
// Config states with various settings.
|
|
scsDefault := spew.NewDefaultConfig()
|
|
scsNoMethods := &spew.ConfigState{Indent: " ", DisableMethods: true}
|
|
scsNoPmethods := &spew.ConfigState{Indent: " ", DisablePointerMethods: true}
|
|
scsMaxDepth := &spew.ConfigState{Indent: " ", MaxDepth: 1}
|
|
|
|
// Variables for tests on types which implement Stringer interface with and
|
|
// without a pointer receiver.
|
|
ts := stringer("test")
|
|
tps := pstringer("test")
|
|
|
|
// depthTester is used to test max depth handling for structs, array, slices
|
|
// and maps.
|
|
type depthTester struct {
|
|
ic indirCir1
|
|
arr [1]string
|
|
slice []string
|
|
m map[string]int
|
|
}
|
|
dt := depthTester{indirCir1{nil}, [1]string{"arr"}, []string{"slice"},
|
|
map[string]int{"one": 1}}
|
|
|
|
spewTests = []spewTest{
|
|
{scsDefault, fCSFdump, "", int8(127), "(int8) 127\n"},
|
|
{scsDefault, fCSFprint, "", int16(32767), "32767"},
|
|
{scsDefault, fCSFprintf, "%v", int32(2147483647), "2147483647"},
|
|
{scsDefault, fCSFprintln, "", int(2147483647), "2147483647\n"},
|
|
{scsDefault, fCSPrint, "", int64(9223372036854775807), "9223372036854775807"},
|
|
{scsDefault, fCSPrintln, "", uint8(255), "255\n"},
|
|
{scsDefault, fCSErrorf, "%#v", uint16(65535), "(uint16)65535"},
|
|
{scsDefault, fCSNewFormatter, "%v", uint32(4294967295), "4294967295"},
|
|
{scsDefault, fErrorf, "%v", uint64(18446744073709551615), "18446744073709551615"},
|
|
{scsDefault, fFprint, "", float32(3.14), "3.14"},
|
|
{scsDefault, fFprintln, "", float64(6.28), "6.28\n"},
|
|
{scsDefault, fPrint, "", true, "true"},
|
|
{scsDefault, fPrintln, "", false, "false\n"},
|
|
{scsNoMethods, fCSFprint, "", ts, "test"},
|
|
{scsNoMethods, fCSFprint, "", &ts, "<*>test"},
|
|
{scsNoMethods, fCSFprint, "", tps, "test"},
|
|
{scsNoMethods, fCSFprint, "", &tps, "<*>test"},
|
|
{scsNoPmethods, fCSFprint, "", ts, "stringer test"},
|
|
{scsNoPmethods, fCSFprint, "", &ts, "<*>stringer test"},
|
|
{scsNoPmethods, fCSFprint, "", tps, "test"},
|
|
{scsNoPmethods, fCSFprint, "", &tps, "<*>stringer test"},
|
|
{scsMaxDepth, fCSFprint, "", dt, "{{<max>} [<max>] [<max>] map[<max>]}"},
|
|
}
|
|
}
|
|
|
|
// TestSpew executes all of the tests described by spewTests.
|
|
func TestSpew(t *testing.T) {
|
|
initSpewTests()
|
|
|
|
t.Logf("Running %d tests", len(spewTests))
|
|
for i, test := range spewTests {
|
|
buf := new(bytes.Buffer)
|
|
switch test.f {
|
|
case fCSFdump:
|
|
test.cs.Fdump(buf, test.in)
|
|
|
|
case fCSFprint:
|
|
test.cs.Fprint(buf, test.in)
|
|
|
|
case fCSFprintf:
|
|
test.cs.Fprintf(buf, test.format, test.in)
|
|
|
|
case fCSFprintln:
|
|
test.cs.Fprintln(buf, test.in)
|
|
|
|
case fCSPrint:
|
|
b, err := redirStdout(func() { test.cs.Print(test.in) })
|
|
if err != nil {
|
|
t.Errorf("%v #%d %v", test.f, i, err)
|
|
continue
|
|
}
|
|
buf.Write(b)
|
|
|
|
case fCSPrintln:
|
|
b, err := redirStdout(func() { test.cs.Println(test.in) })
|
|
if err != nil {
|
|
t.Errorf("%v #%d %v", test.f, i, err)
|
|
continue
|
|
}
|
|
buf.Write(b)
|
|
|
|
case fCSErrorf:
|
|
err := test.cs.Errorf(test.format, test.in)
|
|
buf.WriteString(err.Error())
|
|
|
|
case fCSNewFormatter:
|
|
fmt.Fprintf(buf, test.format, test.cs.NewFormatter(test.in))
|
|
|
|
case fErrorf:
|
|
err := spew.Errorf(test.format, test.in)
|
|
buf.WriteString(err.Error())
|
|
|
|
case fFprint:
|
|
spew.Fprint(buf, test.in)
|
|
|
|
case fFprintln:
|
|
spew.Fprintln(buf, test.in)
|
|
|
|
case fPrint:
|
|
b, err := redirStdout(func() { spew.Print(test.in) })
|
|
if err != nil {
|
|
t.Errorf("%v #%d %v", test.f, i, err)
|
|
continue
|
|
}
|
|
buf.Write(b)
|
|
|
|
case fPrintln:
|
|
b, err := redirStdout(func() { spew.Println(test.in) })
|
|
if err != nil {
|
|
t.Errorf("%v #%d %v", test.f, i, err)
|
|
continue
|
|
}
|
|
buf.Write(b)
|
|
|
|
default:
|
|
t.Errorf("%v #%d unrecognized function", test.f, i)
|
|
continue
|
|
}
|
|
s := buf.String()
|
|
if test.want != s {
|
|
t.Errorf("ConfigState #%d\n got: %s want: %s", i, s, test.want)
|
|
continue
|
|
}
|
|
}
|
|
}
|