text: /*
   * 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.
   */
  
  /*
  Test Summary:
  NOTE: For each test, a nil pointer, a single pointer and double pointer to the
  base test element are also tested to ensure proper indirection across all types.
  
  - Max int8, int16, int32, int64, int
  - Max uint8, uint16, uint32, uint64, uint
  - Boolean true and false
  - Standard complex64 and complex128
  - Array containing standard ints
  - Array containing type with custom formatter on pointer receiver only
  - Array containing interfaces
  - Array containing bytes
  - Slice containing standard float32 values
  - Slice containing type with custom formatter on pointer receiver only
  - Slice containing interfaces
  - Slice containing bytes
  - Nil slice
  - Standard string
  - Nil interface
  - Sub-interface
  - Map with string keys and int vals
  - Map with custom formatter type on pointer receiver only keys and vals
  - Map with interface keys and values
  - Map with nil interface value
  - Struct with primitives
  - Struct that contains another struct
  - Struct that contains custom type with Stringer pointer interface via both
    exported and unexported fields
  - Struct that contains embedded struct and field to same struct
  - Uintptr to 0 (null pointer)
  - Uintptr address of real variable
  - Unsafe.Pointer to 0 (null pointer)
  - Unsafe.Pointer to address of real variable
  - Nil channel
  - Standard int channel
  - Function with no params and no returns
  - Function with param and no returns
  - Function with multiple params and multiple returns
  - Struct that is circular through self referencing
  - Structs that are circular through cross referencing
  - Structs that are indirectly circular
  - Type that panics in its Stringer interface
  */
  
  package spew_test
  
  import (
  	"bytes"
  	"fmt"
  	"testing"
  	"unsafe"
  
  	"github.com/davecgh/go-spew/spew"
  )
  
  // dumpTest is used to describe a test to be perfomed against the Dump method.
  type dumpTest struct {
  	in    interface{}
  	wants []string
  }
  
  // dumpTests houses all of the tests to be performed against the Dump method.
  var dumpTests = make([]dumpTest, 0)
  
  // addDumpTest is a helper method to append the passed input and desired result
  // to dumpTests
  func addDumpTest(in interface{}, wants ...string) {
  	test := dumpTest{in, wants}
  	dumpTests = append(dumpTests, test)
  }
  
  func addIntDumpTests() {
  	// Max int8.
  	v := int8(127)
  	nv := (*int8)(nil)
  	pv := &v
  	vAddr := fmt.Sprintf("%p", pv)
  	pvAddr := fmt.Sprintf("%p", &pv)
  	vt := "int8"
  	vs := "127"
  	addDumpTest(v, "("+vt+") "+vs+"\n")
  	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
  	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
  	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
  
  	// Max int16.
  	v2 := int16(32767)
  	nv2 := (*int16)(nil)
  	pv2 := &v2
  	v2Addr := fmt.Sprintf("%p", pv2)
  	pv2Addr := fmt.Sprintf("%p", &pv2)
  	v2t := "int16"
  	v2s := "32767"
  	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
  	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
  	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
  	addDumpTest(nv2, "(*"+v2t+")(<nil>)\n")
  
  	// Max int32.
  	v3 := int32(2147483647)
  	nv3 := (*int32)(nil)
  	pv3 := &v3
  	v3Addr := fmt.Sprintf("%p", pv3)
  	pv3Addr := fmt.Sprintf("%p", &pv3)
  	v3t := "int32"
  	v3s := "2147483647"
  	addDumpTest(v3, "("+v3t+") "+v3s+"\n")
  	addDumpTest(pv3, "(*"+v3t+")("+v3Addr+")("+v3s+")\n")
  	addDumpTest(&pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")("+v3s+")\n")
  	addDumpTest(nv3, "(*"+v3t+")(<nil>)\n")
  
  	// Max int64.
  	v4 := int64(9223372036854775807)
  	nv4 := (*int64)(nil)
  	pv4 := &v4
  	v4Addr := fmt.Sprintf("%p", pv4)
  	pv4Addr := fmt.Sprintf("%p", &pv4)
  	v4t := "int64"
  	v4s := "9223372036854775807"
  	addDumpTest(v4, "("+v4t+") "+v4s+"\n")
  	addDumpTest(pv4, "(*"+v4t+")("+v4Addr+")("+v4s+")\n")
  	addDumpTest(&pv4, "(**"+v4t+")("+pv4Addr+"->"+v4Addr+")("+v4s+")\n")
  	addDumpTest(nv4, "(*"+v4t+")(<nil>)\n")
  
  	// Max int.
  	v5 := int(2147483647)
  	nv5 := (*int)(nil)
  	pv5 := &v5
  	v5Addr := fmt.Sprintf("%p", pv5)
  	pv5Addr := fmt.Sprintf("%p", &pv5)
  	v5t := "int"
  	v5s := "2147483647"
  	addDumpTest(v5, "("+v5t+") "+v5s+"\n")
  	addDumpTest(pv5, "(*"+v5t+")("+v5Addr+")("+v5s+")\n")
  	addDumpTest(&pv5, "(**"+v5t+")("+pv5Addr+"->"+v5Addr+")("+v5s+")\n")
  	addDumpTest(nv5, "(*"+v5t+")(<nil>)\n")
  }
  
  func addUintDumpTests() {
  	// Max uint8.
  	v := uint8(255)
  	nv := (*uint8)(nil)
  	pv := &v
  	vAddr := fmt.Sprintf("%p", pv)
  	pvAddr := fmt.Sprintf("%p", &pv)
  	vt := "uint8"
  	vs := "255"
  	addDumpTest(v, "("+vt+") "+vs+"\n")
  	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
  	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
  	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
  
  	// Max uint16.
  	v2 := uint16(65535)
  	nv2 := (*uint16)(nil)
  	pv2 := &v2
  	v2Addr := fmt.Sprintf("%p", pv2)
  	pv2Addr := fmt.Sprintf("%p", &pv2)
  	v2t := "uint16"
  	v2s := "65535"
  	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
  	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
  	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
  	addDumpTest(nv2, "(*"+v2t+")(<nil>)\n")
  
  	// Max uint32.
  	v3 := uint32(4294967295)
  	nv3 := (*uint32)(nil)
  	pv3 := &v3
  	v3Addr := fmt.Sprintf("%p", pv3)
  	pv3Addr := fmt.Sprintf("%p", &pv3)
  	v3t := "uint32"
  	v3s := "4294967295"
  	addDumpTest(v3, "("+v3t+") "+v3s+"\n")
  	addDumpTest(pv3, "(*"+v3t+")("+v3Addr+")("+v3s+")\n")
  	addDumpTest(&pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")("+v3s+")\n")
  	addDumpTest(nv3, "(*"+v3t+")(<nil>)\n")
  
  	// Max uint64.
  	v4 := uint64(18446744073709551615)
  	nv4 := (*uint64)(nil)
  	pv4 := &v4
  	v4Addr := fmt.Sprintf("%p", pv4)
  	pv4Addr := fmt.Sprintf("%p", &pv4)
  	v4t := "uint64"
  	v4s := "18446744073709551615"
  	addDumpTest(v4, "("+v4t+") "+v4s+"\n")
  	addDumpTest(pv4, "(*"+v4t+")("+v4Addr+")("+v4s+")\n")
  	addDumpTest(&pv4, "(**"+v4t+")("+pv4Addr+"->"+v4Addr+")("+v4s+")\n")
  	addDumpTest(nv4, "(*"+v4t+")(<nil>)\n")
  
  	// Max uint.
  	v5 := uint(4294967295)
  	nv5 := (*uint)(nil)
  	pv5 := &v5
  	v5Addr := fmt.Sprintf("%p", pv5)
  	pv5Addr := fmt.Sprintf("%p", &pv5)
  	v5t := "uint"
  	v5s := "4294967295"
  	addDumpTest(v5, "("+v5t+") "+v5s+"\n")
  	addDumpTest(pv5, "(*"+v5t+")("+v5Addr+")("+v5s+")\n")
  	addDumpTest(&pv5, "(**"+v5t+")("+pv5Addr+"->"+v5Addr+")("+v5s+")\n")
  	addDumpTest(nv5, "(*"+v5t+")(<nil>)\n")
  }
  
  func addBoolDumpTests() {
  	// Boolean true.
  	v := bool(true)
  	nv := (*bool)(nil)
  	pv := &v
  	vAddr := fmt.Sprintf("%p", pv)
  	pvAddr := fmt.Sprintf("%p", &pv)
  	vt := "bool"
  	vs := "true"
  	addDumpTest(v, "("+vt+") "+vs+"\n")
  	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
  	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
  	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
  
  	// Boolean false.
  	v2 := bool(false)
  	pv2 := &v2
  	v2Addr := fmt.Sprintf("%p", pv2)
  	pv2Addr := fmt.Sprintf("%p", &pv2)
  	v2t := "bool"
  	v2s := "false"
  	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
  	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
  	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
  }
  
  func addFloatDumpTests() {
  	// Standard float32.
  	v := float32(3.1415)
  	nv := (*float32)(nil)
  	pv := &v
  	vAddr := fmt.Sprintf("%p", pv)
  	pvAddr := fmt.Sprintf("%p", &pv)
  	vt := "float32"
  	vs := "3.1415"
  	addDumpTest(v, "("+vt+") "+vs+"\n")
  	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
  	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
  	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
  
  	// Standard float64.
  	v2 := float64(3.1415926)
  	nv2 := (*float64)(nil)
  	pv2 := &v2
  	v2Addr := fmt.Sprintf("%p", pv2)
  	pv2Addr := fmt.Sprintf("%p", &pv2)
  	v2t := "float64"
  	v2s := "3.1415926"
  	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
  	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
  	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
  	addDumpTest(nv2, "(*"+v2t+")(<nil>)\n")
  }
  
  func addComplexDumpTests() {
  	// Standard complex64.
  	v := complex(float32(6), -2)
  	nv := (*complex64)(nil)
  	pv := &v
  	vAddr := fmt.Sprintf("%p", pv)
  	pvAddr := fmt.Sprintf("%p", &pv)
  	vt := "complex64"
  	vs := "(6-2i)"
  	addDumpTest(v, "("+vt+") "+vs+"\n")
  	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
  	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
  	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
  
  	// Standard complex128.
  	v2 := complex(float64(-6), 2)
  	nv2 := (*complex128)(nil)
  	pv2 := &v2
  	v2Addr := fmt.Sprintf("%p", pv2)
  	pv2Addr := fmt.Sprintf("%p", &pv2)
  	v2t := "complex128"
  	v2s := "(-6+2i)"
  	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
  	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
  	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
  	addDumpTest(nv2, "(*"+v2t+")(<nil>)\n")
  }
  
  func addArrayDumpTests() {
  	// Array containing standard ints.
  	v := [3]int{1, 2, 3}
  	vLen := fmt.Sprintf("%d", len(v))
  	vCap := fmt.Sprintf("%d", cap(v))
  	nv := (*[3]int)(nil)
  	pv := &v
  	vAddr := fmt.Sprintf("%p", pv)
  	pvAddr := fmt.Sprintf("%p", &pv)
  	vt := "int"
  	vs := "(len=" + vLen + " cap=" + vCap + ") {\n (" + vt + ") 1,\n (" +
  		vt + ") 2,\n (" + vt + ") 3\n}"
  	addDumpTest(v, "([3]"+vt+") "+vs+"\n")
  	addDumpTest(pv, "(*[3]"+vt+")("+vAddr+")("+vs+")\n")
  	addDumpTest(&pv, "(**[3]"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
  	addDumpTest(nv, "(*[3]"+vt+")(<nil>)\n")
  
  	// Array containing type with custom formatter on pointer receiver only.
  	v2i0 := pstringer("1")
  	v2i1 := pstringer("2")
  	v2i2 := pstringer("3")
  	v2 := [3]pstringer{v2i0, v2i1, v2i2}
  	v2i0Len := fmt.Sprintf("%d", len(v2i0))
  	v2i1Len := fmt.Sprintf("%d", len(v2i1))
  	v2i2Len := fmt.Sprintf("%d", len(v2i2))
  	v2Len := fmt.Sprintf("%d", len(v2))
  	v2Cap := fmt.Sprintf("%d", cap(v2))
  	nv2 := (*[3]pstringer)(nil)
  	pv2 := &v2
  	v2Addr := fmt.Sprintf("%p", pv2)
  	pv2Addr := fmt.Sprintf("%p", &pv2)
  	v2t := "spew_test.pstringer"
  	v2sp := "(len=" + v2Len + " cap=" + v2Cap + ") {\n (" + v2t +
  		") (len=" + v2i0Len + ") stringer 1,\n (" + v2t +
  		") (len=" + v2i1Len + ") stringer 2,\n (" + v2t +
  		") (len=" + v2i2Len + ") " + "stringer 3\n}"
  	v2s := v2sp
  	if spew.UnsafeDisabled {
  		v2s = "(len=" + v2Len + " cap=" + v2Cap + ") {\n (" + v2t +
  			") (len=" + v2i0Len + ") \"1\",\n (" + v2t + ") (len=" +
  			v2i1Len + ") \"2\",\n (" + v2t + ") (len=" + v2i2Len +
  			") " + "\"3\"\n}"
  	}
  	addDumpTest(v2, "([3]"+v2t+") "+v2s+"\n")
  	addDumpTest(pv2, "(*[3]"+v2t+")("+v2Addr+")("+v2sp+")\n")
  	addDumpTest(&pv2, "(**[3]"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2sp+")\n")
  	addDumpTest(nv2, "(*[3]"+v2t+")(<nil>)\n")
  
  	// Array containing interfaces.
  	v3i0 := "one"
  	v3 := [3]interface{}{v3i0, int(2), uint(3)}
  	v3i0Len := fmt.Sprintf("%d", len(v3i0))
  	v3Len := fmt.Sprintf("%d", len(v3))
  	v3Cap := fmt.Sprintf("%d", cap(v3))
  	nv3 := (*[3]interface{})(nil)
  	pv3 := &v3
  	v3Addr := fmt.Sprintf("%p", pv3)
  	pv3Addr := fmt.Sprintf("%p", &pv3)
  	v3t := "[3]interface {}"
  	v3t2 := "string"
  	v3t3 := "int"
  	v3t4 := "uint"
  	v3s := "(len=" + v3Len + " cap=" + v3Cap + ") {\n (" + v3t2 + ") " +
  		"(len=" + v3i0Len + ") \"one\",\n (" + v3t3 + ") 2,\n (" +
  		v3t4 + ") 3\n}"
  	addDumpTest(v3, "("+v3t+") "+v3s+"\n")
  	addDumpTest(pv3, "(*"+v3t+")("+v3Addr+")("+v3s+")\n")
  	addDumpTest(&pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")("+v3s+")\n")
  	addDumpTest(nv3, "(*"+v3t+")(<nil>)\n")
  
  	// Array containing bytes.
  	v4 := [34]byte{
  		0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
  		0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20,
  		0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
  		0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30,
  		0x31, 0x32,
  	}
  	v4Len := fmt.Sprintf("%d", len(v4))
  	v4Cap := fmt.Sprintf("%d", cap(v4))
  	nv4 := (*[34]byte)(nil)
  	pv4 := &v4
  	v4Addr := fmt.Sprintf("%p", pv4)
  	pv4Addr := fmt.Sprintf("%p", &pv4)
  	v4t := "[34]uint8"
  	v4s := "(len=" + v4Len + " cap=" + v4Cap + ") " +
  		"{\n 00000000  11 12 13 14 15 16 17 18  19 1a 1b 1c 1d 1e 1f 20" +
  		"  |............... |\n" +
  		" 00000010  21 22 23 24 25 26 27 28  29 2a 2b 2c 2d 2e 2f 30" +
  		"  |!\"#$%&'()*+,-./0|\n" +
  		" 00000020  31 32                                           " +
  		"  |12|\n}"
  	addDumpTest(v4, "("+v4t+") "+v4s+"\n")
  	addDumpTest(pv4, "(*"+v4t+")("+v4Addr+")("+v4s+")\n")
  	addDumpTest(&pv4, "(**"+v4t+")("+pv4Addr+"->"+v4Addr+")("+v4s+")\n")
  	addDumpTest(nv4, "(*"+v4t+")(<nil>)\n")
  }
  
  func addSliceDumpTests() {
  	// Slice containing standard float32 values.
  	v := []float32{3.14, 6.28, 12.56}
  	vLen := fmt.Sprintf("%d", len(v))
  	vCap := fmt.Sprintf("%d", cap(v))
  	nv := (*[]float32)(nil)
  	pv := &v
  	vAddr := fmt.Sprintf("%p", pv)
  	pvAddr := fmt.Sprintf("%p", &pv)
  	vt := "float32"
  	vs := "(len=" + vLen + " cap=" + vCap + ") {\n (" + vt + ") 3.14,\n (" +
  		vt + ") 6.28,\n (" + vt + ") 12.56\n}"
  	addDumpTest(v, "([]"+vt+") "+vs+"\n")
  	addDumpTest(pv, "(*[]"+vt+")("+vAddr+")("+vs+")\n")
  	addDumpTest(&pv, "(**[]"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
  	addDumpTest(nv, "(*[]"+vt+")(<nil>)\n")
  
  	// Slice containing type with custom formatter on pointer receiver only.
  	v2i0 := pstringer("1")
  	v2i1 := pstringer("2")
  	v2i2 := pstringer("3")
  	v2 := []pstringer{v2i0, v2i1, v2i2}
  	v2i0Len := fmt.Sprintf("%d", len(v2i0))
  	v2i1Len := fmt.Sprintf("%d", len(v2i1))
  	v2i2Len := fmt.Sprintf("%d", len(v2i2))
  	v2Len := fmt.Sprintf("%d", len(v2))
  	v2Cap := fmt.Sprintf("%d", cap(v2))
  	nv2 := (*[]pstringer)(nil)
  	pv2 := &v2
  	v2Addr := fmt.Sprintf("%p", pv2)
  	pv2Addr := fmt.Sprintf("%p", &pv2)
  	v2t := "spew_test.pstringer"
  	v2s := "(len=" + v2Len + " cap=" + v2Cap + ") {\n (" + v2t + ") (len=" +
  		v2i0Len + ") stringer 1,\n (" + v2t + ") (len=" + v2i1Len +
  		") stringer 2,\n (" + v2t + ") (len=" + v2i2Len + ") " +
  		"stringer 3\n}"
  	addDumpTest(v2, "([]"+v2t+") "+v2s+"\n")
  	addDumpTest(pv2, "(*[]"+v2t+")("+v2Addr+")("+v2s+")\n")
  	addDumpTest(&pv2, "(**[]"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
  	addDumpTest(nv2, "(*[]"+v2t+")(<nil>)\n")
  
  	// Slice containing interfaces.
  	v3i0 := "one"
  	v3 := []interface{}{v3i0, int(2), uint(3), nil}
  	v3i0Len := fmt.Sprintf("%d", len(v3i0))
  	v3Len := fmt.Sprintf("%d", len(v3))
  	v3Cap := fmt.Sprintf("%d", cap(v3))
  	nv3 := (*[]interface{})(nil)
  	pv3 := &v3
  	v3Addr := fmt.Sprintf("%p", pv3)
  	pv3Addr := fmt.Sprintf("%p", &pv3)
  	v3t := "[]interface {}"
  	v3t2 := "string"
  	v3t3 := "int"
  	v3t4 := "uint"
  	v3t5 := "interface {}"
  	v3s := "(len=" + v3Len + " cap=" + v3Cap + ") {\n (" + v3t2 + ") " +
  		"(len=" + v3i0Len + ") \"one\",\n (" + v3t3 + ") 2,\n (" +
  		v3t4 + ") 3,\n (" + v3t5 + ") <nil>\n}"
  	addDumpTest(v3, "("+v3t+") "+v3s+"\n")
  	addDumpTest(pv3, "(*"+v3t+")("+v3Addr+")("+v3s+")\n")
  	addDumpTest(&pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")("+v3s+")\n")
  	addDumpTest(nv3, "(*"+v3t+")(<nil>)\n")
  
  	// Slice containing bytes.
  	v4 := []byte{
  		0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
  		0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20,
  		0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
  		0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30,
  		0x31, 0x32,
  	}
  	v4Len := fmt.Sprintf("%d", len(v4))
  	v4Cap := fmt.Sprintf("%d", cap(v4))
  	nv4 := (*[]byte)(nil)
  	pv4 := &v4
  	v4Addr := fmt.Sprintf("%p", pv4)
  	pv4Addr := fmt.Sprintf("%p", &pv4)
  	v4t := "[]uint8"
  	v4s := "(len=" + v4Len + " cap=" + v4Cap + ") " +
  		"{\n 00000000  11 12 13 14 15 16 17 18  19 1a 1b 1c 1d 1e 1f 20" +
  		"  |............... |\n" +
  		" 00000010  21 22 23 24 25 26 27 28  29 2a 2b 2c 2d 2e 2f 30" +
  		"  |!\"#$%&'()*+,-./0|\n" +
  		" 00000020  31 32                                           " +
  		"  |12|\n}"
  	addDumpTest(v4, "("+v4t+") "+v4s+"\n")
  	addDumpTest(pv4, "(*"+v4t+")("+v4Addr+")("+v4s+")\n")
  	addDumpTest(&pv4, "(**"+v4t+")("+pv4Addr+"->"+v4Addr+")("+v4s+")\n")
  	addDumpTest(nv4, "(*"+v4t+")(<nil>)\n")
  
  	// Nil slice.
  	v5 := []int(nil)
  	nv5 := (*[]int)(nil)
  	pv5 := &v5
  	v5Addr := fmt.Sprintf("%p", pv5)
  	pv5Addr := fmt.Sprintf("%p", &pv5)
  	v5t := "[]int"
  	v5s := "<nil>"
  	addDumpTest(v5, "("+v5t+") "+v5s+"\n")
  	addDumpTest(pv5, "(*"+v5t+")("+v5Addr+")("+v5s+")\n")
  	addDumpTest(&pv5, "(**"+v5t+")("+pv5Addr+"->"+v5Addr+")("+v5s+")\n")
  	addDumpTest(nv5, "(*"+v5t+")(<nil>)\n")
  }
  
  func addStringDumpTests() {
  	// Standard string.
  	v := "test"
  	vLen := fmt.Sprintf("%d", len(v))
  	nv := (*string)(nil)
  	pv := &v
  	vAddr := fmt.Sprintf("%p", pv)
  	pvAddr := fmt.Sprintf("%p", &pv)
  	vt := "string"
  	vs := "(len=" + vLen + ") \"test\""
  	addDumpTest(v, "("+vt+") "+vs+"\n")
  	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
  	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
  	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
  }
  
  func addInterfaceDumpTests() {
  	// Nil interface.
  	var v interface{}
  	nv := (*interface{})(nil)
  	pv := &v
  	vAddr := fmt.Sprintf("%p", pv)
  	pvAddr := fmt.Sprintf("%p", &pv)
  	vt := "interface {}"
  	vs := "<nil>"
  	addDumpTest(v, "("+vt+") "+vs+"\n")
  	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
  	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
  	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
  
  	// Sub-interface.
  	v2 := interface{}(uint16(65535))
  	pv2 := &v2
  	v2Addr := fmt.Sprintf("%p", pv2)
  	pv2Addr := fmt.Sprintf("%p", &pv2)
  	v2t := "uint16"
  	v2s := "65535"
  	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
  	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
  	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
  }
  
  func addMapDumpTests() {
  	// Map with string keys and int vals.
  	k := "one"
  	kk := "two"
  	m := map[string]int{k: 1, kk: 2}
  	klen := fmt.Sprintf("%d", len(k)) // not kLen to shut golint up
  	kkLen := fmt.Sprintf("%d", len(kk))
  	mLen := fmt.Sprintf("%d", len(m))
  	nilMap := map[string]int(nil)
  	nm := (*map[string]int)(nil)
  	pm := &m
  	mAddr := fmt.Sprintf("%p", pm)
  	pmAddr := fmt.Sprintf("%p", &pm)
  	mt := "map[string]int"
  	mt1 := "string"
  	mt2 := "int"
  	ms := "(len=" + mLen + ") {\n (" + mt1 + ") (len=" + klen + ") " +
  		"\"one\": (" + mt2 + ") 1,\n (" + mt1 + ") (len=" + kkLen +
  		") \"two\": (" + mt2 + ") 2\n}"
  	ms2 := "(len=" + mLen + ") {\n (" + mt1 + ") (len=" + kkLen + ") " +
  		"\"two\": (" + mt2 + ") 2,\n (" + mt1 + ") (len=" + klen +
  		") \"one\": (" + mt2 + ") 1\n}"
  	addDumpTest(m, "("+mt+") "+ms+"\n", "("+mt+") "+ms2+"\n")
  	addDumpTest(pm, "(*"+mt+")("+mAddr+")("+ms+")\n",
  		"(*"+mt+")("+mAddr+")("+ms2+")\n")
  	addDumpTest(&pm, "(**"+mt+")("+pmAddr+"->"+mAddr+")("+ms+")\n",
  		"(**"+mt+")("+pmAddr+"->"+mAddr+")("+ms2+")\n")
  	addDumpTest(nm, "(*"+mt+")(<nil>)\n")
  	addDumpTest(nilMap, "("+mt+") <nil>\n")
  
  	// Map with custom formatter type on pointer receiver only keys and vals.
  	k2 := pstringer("one")
  	v2 := pstringer("1")
  	m2 := map[pstringer]pstringer{k2: v2}
  	k2Len := fmt.Sprintf("%d", len(k2))
  	v2Len := fmt.Sprintf("%d", len(v2))
  	m2Len := fmt.Sprintf("%d", len(m2))
  	nilMap2 := map[pstringer]pstringer(nil)
  	nm2 := (*map[pstringer]pstringer)(nil)
  	pm2 := &m2
  	m2Addr := fmt.Sprintf("%p", pm2)
  	pm2Addr := fmt.Sprintf("%p", &pm2)
  	m2t := "map[spew_test.pstringer]spew_test.pstringer"
  	m2t1 := "spew_test.pstringer"
  	m2t2 := "spew_test.pstringer"
  	m2s := "(len=" + m2Len + ") {\n (" + m2t1 + ") (len=" + k2Len + ") " +
  		"stringer one: (" + m2t2 + ") (len=" + v2Len + ") stringer 1\n}"
  	if spew.UnsafeDisabled {
  		m2s = "(len=" + m2Len + ") {\n (" + m2t1 + ") (len=" + k2Len +
  			") " + "\"one\": (" + m2t2 + ") (len=" + v2Len +
  			") \"1\"\n}"
  	}
  	addDumpTest(m2, "("+m2t+") "+m2s+"\n")
  	addDumpTest(pm2, "(*"+m2t+")("+m2Addr+")("+m2s+")\n")
  	addDumpTest(&pm2, "(**"+m2t+")("+pm2Addr+"->"+m2Addr+")("+m2s+")\n")
  	addDumpTest(nm2, "(*"+m2t+")(<nil>)\n")
  	addDumpTest(nilMap2, "("+m2t+") <nil>\n")
  
  	// Map with interface keys and values.
  	k3 := "one"
  	k3Len := fmt.Sprintf("%d", len(k3))
  	m3 := map[interface{}]interface{}{k3: 1}
  	m3Len := fmt.Sprintf("%d", len(m3))
  	nilMap3 := map[interface{}]interface{}(nil)
  	nm3 := (*map[interface{}]interface{})(nil)
  	pm3 := &m3
  	m3Addr := fmt.Sprintf("%p", pm3)
  	pm3Addr := fmt.Sprintf("%p", &pm3)
  	m3t := "map[interface {}]interface {}"
  	m3t1 := "string"
  	m3t2 := "int"
  	m3s := "(len=" + m3Len + ") {\n (" + m3t1 + ") (len=" + k3Len + ") " +
  		"\"one\": (" + m3t2 + ") 1\n}"
  	addDumpTest(m3, "("+m3t+") "+m3s+"\n")
  	addDumpTest(pm3, "(*"+m3t+")("+m3Addr+")("+m3s+")\n")
  	addDumpTest(&pm3, "(**"+m3t+")("+pm3Addr+"->"+m3Addr+")("+m3s+")\n")
  	addDumpTest(nm3, "(*"+m3t+")(<nil>)\n")
  	addDumpTest(nilMap3, "("+m3t+") <nil>\n")
  
  	// Map with nil interface value.
  	k4 := "nil"
  	k4Len := fmt.Sprintf("%d", len(k4))
  	m4 := map[string]interface{}{k4: nil}
  	m4Len := fmt.Sprintf("%d", len(m4))
  	nilMap4 := map[string]interface{}(nil)
  	nm4 := (*map[string]interface{})(nil)
  	pm4 := &m4
  	m4Addr := fmt.Sprintf("%p", pm4)
  	pm4Addr := fmt.Sprintf("%p", &pm4)
  	m4t := "map[string]interface {}"
  	m4t1 := "string"
  	m4t2 := "interface {}"
  	m4s := "(len=" + m4Len + ") {\n (" + m4t1 + ") (len=" + k4Len + ")" +
  		" \"nil\": (" + m4t2 + ") <nil>\n}"
  	addDumpTest(m4, "("+m4t+") "+m4s+"\n")
  	addDumpTest(pm4, "(*"+m4t+")("+m4Addr+")("+m4s+")\n")
  	addDumpTest(&pm4, "(**"+m4t+")("+pm4Addr+"->"+m4Addr+")("+m4s+")\n")
  	addDumpTest(nm4, "(*"+m4t+")(<nil>)\n")
  	addDumpTest(nilMap4, "("+m4t+") <nil>\n")
  }
  
  func addStructDumpTests() {
  	// Struct with primitives.
  	type s1 struct {
  		a int8
  		b uint8
  	}
  	v := s1{127, 255}
  	nv := (*s1)(nil)
  	pv := &v
  	vAddr := fmt.Sprintf("%p", pv)
  	pvAddr := fmt.Sprintf("%p", &pv)
  	vt := "spew_test.s1"
  	vt2 := "int8"
  	vt3 := "uint8"
  	vs := "{\n a: (" + vt2 + ") 127,\n b: (" + vt3 + ") 255\n}"
  	addDumpTest(v, "("+vt+") "+vs+"\n")
  	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
  	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
  	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
  
  	// Struct that contains another struct.
  	type s2 struct {
  		s1 s1
  		b  bool
  	}
  	v2 := s2{s1{127, 255}, true}
  	nv2 := (*s2)(nil)
  	pv2 := &v2
  	v2Addr := fmt.Sprintf("%p", pv2)
  	pv2Addr := fmt.Sprintf("%p", &pv2)
  	v2t := "spew_test.s2"
  	v2t2 := "spew_test.s1"
  	v2t3 := "int8"
  	v2t4 := "uint8"
  	v2t5 := "bool"
  	v2s := "{\n s1: (" + v2t2 + ") {\n  a: (" + v2t3 + ") 127,\n  b: (" +
  		v2t4 + ") 255\n },\n b: (" + v2t5 + ") true\n}"
  	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
  	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
  	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
  	addDumpTest(nv2, "(*"+v2t+")(<nil>)\n")
  
  	// Struct that contains custom type with Stringer pointer interface via both
  	// exported and unexported fields.
  	type s3 struct {
  		s pstringer
  		S pstringer
  	}
  	v3 := s3{"test", "test2"}
  	nv3 := (*s3)(nil)
  	pv3 := &v3
  	v3Addr := fmt.Sprintf("%p", pv3)
  	pv3Addr := fmt.Sprintf("%p", &pv3)
  	v3t := "spew_test.s3"
  	v3t2 := "spew_test.pstringer"
  	v3s := "{\n s: (" + v3t2 + ") (len=4) stringer test,\n S: (" + v3t2 +
  		") (len=5) stringer test2\n}"
  	v3sp := v3s
  	if spew.UnsafeDisabled {
  		v3s = "{\n s: (" + v3t2 + ") (len=4) \"test\",\n S: (" +
  			v3t2 + ") (len=5) \"test2\"\n}"
  		v3sp = "{\n s: (" + v3t2 + ") (len=4) \"test\",\n S: (" +
  			v3t2 + ") (len=5) stringer test2\n}"
  	}
  	addDumpTest(v3, "("+v3t+") "+v3s+"\n")
  	addDumpTest(pv3, "(*"+v3t+")("+v3Addr+")("+v3sp+")\n")
  	addDumpTest(&pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")("+v3sp+")\n")
  	addDumpTest(nv3, "(*"+v3t+")(<nil>)\n")
  
  	// Struct that contains embedded struct and field to same struct.
  	e := embed{"embedstr"}
  	eLen := fmt.Sprintf("%d", len("embedstr"))
  	v4 := embedwrap{embed: &e, e: &e}
  	nv4 := (*embedwrap)(nil)
  	pv4 := &v4
  	eAddr := fmt.Sprintf("%p", &e)
  	v4Addr := fmt.Sprintf("%p", pv4)
  	pv4Addr := fmt.Sprintf("%p", &pv4)
  	v4t := "spew_test.embedwrap"
  	v4t2 := "spew_test.embed"
  	v4t3 := "string"
  	v4s := "{\n embed: (*" + v4t2 + ")(" + eAddr + ")({\n  a: (" + v4t3 +
  		") (len=" + eLen + ") \"embedstr\"\n }),\n e: (*" + v4t2 +
  		")(" + eAddr + ")({\n  a: (" + v4t3 + ") (len=" + eLen + ")" +
  		" \"embedstr\"\n })\n}"
  	addDumpTest(v4, "("+v4t+") "+v4s+"\n")
  	addDumpTest(pv4, "(*"+v4t+")("+v4Addr+")("+v4s+")\n")
  	addDumpTest(&pv4, "(**"+v4t+")("+pv4Addr+"->"+v4Addr+")("+v4s+")\n")
  	addDumpTest(nv4, "(*"+v4t+")(<nil>)\n")
  }
  
  func addUintptrDumpTests() {
  	// Null pointer.
  	v := uintptr(0)
  	pv := &v
  	vAddr := fmt.Sprintf("%p", pv)
  	pvAddr := fmt.Sprintf("%p", &pv)
  	vt := "uintptr"
  	vs := "<nil>"
  	addDumpTest(v, "("+vt+") "+vs+"\n")
  	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
  	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
  
  	// Address of real variable.
  	i := 1
  	v2 := uintptr(unsafe.Pointer(&i))
  	nv2 := (*uintptr)(nil)
  	pv2 := &v2
  	v2Addr := fmt.Sprintf("%p", pv2)
  	pv2Addr := fmt.Sprintf("%p", &pv2)
  	v2t := "uintptr"
  	v2s := fmt.Sprintf("%p", &i)
  	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
  	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
  	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
  	addDumpTest(nv2, "(*"+v2t+")(<nil>)\n")
  }
  
  func addUnsafePointerDumpTests() {
  	// Null pointer.
  	v := unsafe.Pointer(uintptr(0))
  	nv := (*unsafe.Pointer)(nil)
  	pv := &v
  	vAddr := fmt.Sprintf("%p", pv)
  	pvAddr := fmt.Sprintf("%p", &pv)
  	vt := "unsafe.Pointer"
  	vs := "<nil>"
  	addDumpTest(v, "("+vt+") "+vs+"\n")
  	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
  	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
  	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
  
  	// Address of real variable.
  	i := 1
  	v2 := unsafe.Pointer(&i)
  	pv2 := &v2
  	v2Addr := fmt.Sprintf("%p", pv2)
  	pv2Addr := fmt.Sprintf("%p", &pv2)
  	v2t := "unsafe.Pointer"
  	v2s := fmt.Sprintf("%p", &i)
  	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
  	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
  	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
  	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
  }
  
  func addChanDumpTests() {
  	// Nil channel.
  	var v chan int
  	pv := &v
  	nv := (*chan int)(nil)
  	vAddr := fmt.Sprintf("%p", pv)
  	pvAddr := fmt.Sprintf("%p", &pv)
  	vt := "chan int"
  	vs := "<nil>"
  	addDumpTest(v, "("+vt+") "+vs+"\n")
  	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
  	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
  	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
  
  	// Real channel.
  	v2 := make(chan int)
  	pv2 := &v2
  	v2Addr := fmt.Sprintf("%p", pv2)
  	pv2Addr := fmt.Sprintf("%p", &pv2)
  	v2t := "chan int"
  	v2s := fmt.Sprintf("%p", v2)
  	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
  	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
  	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
  }
  
  func addFuncDumpTests() {
  	// Function with no params and no returns.
  	v := addIntDumpTests
  	nv := (*func())(nil)
  	pv := &v
  	vAddr := fmt.Sprintf("%p", pv)
  	pvAddr := fmt.Sprintf("%p", &pv)
  	vt := "func()"
  	vs := fmt.Sprintf("%p", v)
  	addDumpTest(v, "("+vt+") "+vs+"\n")
  	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
  	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
  	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
  
  	// Function with param and no returns.
  	v2 := TestDump
  	nv2 := (*func(*testing.T))(nil)
  	pv2 := &v2
  	v2Addr := fmt.Sprintf("%p", pv2)
  	pv2Addr := fmt.Sprintf("%p", &pv2)
  	v2t := "func(*testing.T)"
  	v2s := fmt.Sprintf("%p", v2)
  	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
  	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s+")\n")
  	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s+")\n")
  	addDumpTest(nv2, "(*"+v2t+")(<nil>)\n")
  
  	// Function with multiple params and multiple returns.
  	var v3 = func(i int, s string) (b bool, err error) {
  		return true, nil
  	}
  	nv3 := (*func(int, string) (bool, error))(nil)
  	pv3 := &v3
  	v3Addr := fmt.Sprintf("%p", pv3)
  	pv3Addr := fmt.Sprintf("%p", &pv3)
  	v3t := "func(int, string) (bool, error)"
  	v3s := fmt.Sprintf("%p", v3)
  	addDumpTest(v3, "("+v3t+") "+v3s+"\n")
  	addDumpTest(pv3, "(*"+v3t+")("+v3Addr+")("+v3s+")\n")
  	addDumpTest(&pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")("+v3s+")\n")
  	addDumpTest(nv3, "(*"+v3t+")(<nil>)\n")
  }
  
  func addCircularDumpTests() {
  	// Struct that is circular through self referencing.
  	type circular struct {
  		c *circular
  	}
  	v := circular{nil}
  	v.c = &v
  	pv := &v
  	vAddr := fmt.Sprintf("%p", pv)
  	pvAddr := fmt.Sprintf("%p", &pv)
  	vt := "spew_test.circular"
  	vs := "{\n c: (*" + vt + ")(" + vAddr + ")({\n  c: (*" + vt + ")(" +
  		vAddr + ")(<already shown>)\n })\n}"
  	vs2 := "{\n c: (*" + vt + ")(" + vAddr + ")(<already shown>)\n}"
  	addDumpTest(v, "("+vt+") "+vs+"\n")
  	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs2+")\n")
  	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs2+")\n")
  
  	// Structs that are circular through cross referencing.
  	v2 := xref1{nil}
  	ts2 := xref2{&v2}
  	v2.ps2 = &ts2
  	pv2 := &v2
  	ts2Addr := fmt.Sprintf("%p", &ts2)
  	v2Addr := fmt.Sprintf("%p", pv2)
  	pv2Addr := fmt.Sprintf("%p", &pv2)
  	v2t := "spew_test.xref1"
  	v2t2 := "spew_test.xref2"
  	v2s := "{\n ps2: (*" + v2t2 + ")(" + ts2Addr + ")({\n  ps1: (*" + v2t +
  		")(" + v2Addr + ")({\n   ps2: (*" + v2t2 + ")(" + ts2Addr +
  		")(<already shown>)\n  })\n })\n}"
  	v2s2 := "{\n ps2: (*" + v2t2 + ")(" + ts2Addr + ")({\n  ps1: (*" + v2t +
  		")(" + v2Addr + ")(<already shown>)\n })\n}"
  	addDumpTest(v2, "("+v2t+") "+v2s+"\n")
  	addDumpTest(pv2, "(*"+v2t+")("+v2Addr+")("+v2s2+")\n")
  	addDumpTest(&pv2, "(**"+v2t+")("+pv2Addr+"->"+v2Addr+")("+v2s2+")\n")
  
  	// Structs that are indirectly circular.
  	v3 := indirCir1{nil}
  	tic2 := indirCir2{nil}
  	tic3 := indirCir3{&v3}
  	tic2.ps3 = &tic3
  	v3.ps2 = &tic2
  	pv3 := &v3
  	tic2Addr := fmt.Sprintf("%p", &tic2)
  	tic3Addr := fmt.Sprintf("%p", &tic3)
  	v3Addr := fmt.Sprintf("%p", pv3)
  	pv3Addr := fmt.Sprintf("%p", &pv3)
  	v3t := "spew_test.indirCir1"
  	v3t2 := "spew_test.indirCir2"
  	v3t3 := "spew_test.indirCir3"
  	v3s := "{\n ps2: (*" + v3t2 + ")(" + tic2Addr + ")({\n  ps3: (*" + v3t3 +
  		")(" + tic3Addr + ")({\n   ps1: (*" + v3t + ")(" + v3Addr +
  		")({\n    ps2: (*" + v3t2 + ")(" + tic2Addr +
  		")(<already shown>)\n   })\n  })\n })\n}"
  	v3s2 := "{\n ps2: (*" + v3t2 + ")(" + tic2Addr + ")({\n  ps3: (*" + v3t3 +
  		")(" + tic3Addr + ")({\n   ps1: (*" + v3t + ")(" + v3Addr +
  		")(<already shown>)\n  })\n })\n}"
  	addDumpTest(v3, "("+v3t+") "+v3s+"\n")
  	addDumpTest(pv3, "(*"+v3t+")("+v3Addr+")("+v3s2+")\n")
  	addDumpTest(&pv3, "(**"+v3t+")("+pv3Addr+"->"+v3Addr+")("+v3s2+")\n")
  }
  
  func addPanicDumpTests() {
  	// Type that panics in its Stringer interface.
  	v := panicer(127)
  	nv := (*panicer)(nil)
  	pv := &v
  	vAddr := fmt.Sprintf("%p", pv)
  	pvAddr := fmt.Sprintf("%p", &pv)
  	vt := "spew_test.panicer"
  	vs := "(PANIC=test panic)127"
  	addDumpTest(v, "("+vt+") "+vs+"\n")
  	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
  	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
  	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
  }
  
  func addErrorDumpTests() {
  	// Type that has a custom Error interface.
  	v := customError(127)
  	nv := (*customError)(nil)
  	pv := &v
  	vAddr := fmt.Sprintf("%p", pv)
  	pvAddr := fmt.Sprintf("%p", &pv)
  	vt := "spew_test.customError"
  	vs := "error: 127"
  	addDumpTest(v, "("+vt+") "+vs+"\n")
  	addDumpTest(pv, "(*"+vt+")("+vAddr+")("+vs+")\n")
  	addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+")("+vs+")\n")
  	addDumpTest(nv, "(*"+vt+")(<nil>)\n")
  }
  
  // TestDump executes all of the tests described by dumpTests.
  func TestDump(t *testing.T) {
  	// Setup tests.
  	addIntDumpTests()
  	addUintDumpTests()
  	addBoolDumpTests()
  	addFloatDumpTests()
  	addComplexDumpTests()
  	addArrayDumpTests()
  	addSliceDumpTests()
  	addStringDumpTests()
  	addInterfaceDumpTests()
  	addMapDumpTests()
  	addStructDumpTests()
  	addUintptrDumpTests()
  	addUnsafePointerDumpTests()
  	addChanDumpTests()
  	addFuncDumpTests()
  	addCircularDumpTests()
  	addPanicDumpTests()
  	addErrorDumpTests()
  	addCgoDumpTests()
  
  	t.Logf("Running %d tests", len(dumpTests))
  	for i, test := range dumpTests {
  		buf := new(bytes.Buffer)
  		spew.Fdump(buf, test.in)
  		s := buf.String()
  		if testFailed(s, test.wants) {
  			t.Errorf("Dump #%d\n got: %s %s", i, s, stringizeWants(test.wants))
  			continue
  		}
  	}
  }
  
  func TestDumpSortedKeys(t *testing.T) {
  	cfg := spew.ConfigState{SortKeys: true}
  	s := cfg.Sdump(map[int]string{1: "1", 3: "3", 2: "2"})
  	expected := "(map[int]string) (len=3) {\n(int) 1: (string) (len=1) " +
  		"\"1\",\n(int) 2: (string) (len=1) \"2\",\n(int) 3: (string) " +
  		"(len=1) \"3\"\n" +
  		"}\n"
  	if s != expected {
  		t.Errorf("Sorted keys mismatch:\n  %v %v", s, expected)
  	}
  
  	s = cfg.Sdump(map[stringer]int{"1": 1, "3": 3, "2": 2})
  	expected = "(map[spew_test.stringer]int) (len=3) {\n" +
  		"(spew_test.stringer) (len=1) stringer 1: (int) 1,\n" +
  		"(spew_test.stringer) (len=1) stringer 2: (int) 2,\n" +
  		"(spew_test.stringer) (len=1) stringer 3: (int) 3\n" +
  		"}\n"
  	if s != expected {
  		t.Errorf("Sorted keys mismatch:\n  %v %v", s, expected)
  	}
  
  	s = cfg.Sdump(map[pstringer]int{pstringer("1"): 1, pstringer("3"): 3, pstringer("2"): 2})
  	expected = "(map[spew_test.pstringer]int) (len=3) {\n" +
  		"(spew_test.pstringer) (len=1) stringer 1: (int) 1,\n" +
  		"(spew_test.pstringer) (len=1) stringer 2: (int) 2,\n" +
  		"(spew_test.pstringer) (len=1) stringer 3: (int) 3\n" +
  		"}\n"
  	if spew.UnsafeDisabled {
  		expected = "(map[spew_test.pstringer]int) (len=3) {\n" +
  			"(spew_test.pstringer) (len=1) \"1\": (int) 1,\n" +
  			"(spew_test.pstringer) (len=1) \"2\": (int) 2,\n" +
  			"(spew_test.pstringer) (len=1) \"3\": (int) 3\n" +
  			"}\n"
  	}
  	if s != expected {
  		t.Errorf("Sorted keys mismatch:\n  %v %v", s, expected)
  	}
  
  	s = cfg.Sdump(map[customError]int{customError(1): 1, customError(3): 3, customError(2): 2})
  	expected = "(map[spew_test.customError]int) (len=3) {\n" +
  		"(spew_test.customError) error: 1: (int) 1,\n" +
  		"(spew_test.customError) error: 2: (int) 2,\n" +
  		"(spew_test.customError) error: 3: (int) 3\n" +
  		"}\n"
  	if s != expected {
  		t.Errorf("Sorted keys mismatch:\n  %v %v", s, expected)
  	}
  
  }
  