mirror of
https://github.com/golang/go
synced 2024-10-05 12:21:22 -06:00
92543daff1
R=gri DELTA=20 (17 added, 0 deleted, 3 changed) OCL=33793 CL=33802
982 lines
26 KiB
Go
982 lines
26 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package reflect_test
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import (
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"io";
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"os";
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. "reflect";
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"testing";
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"unsafe";
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)
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type integer int
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type T struct { a int; b float64; c string; d *int }
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type pair struct {
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i interface{};
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s string;
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}
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func isDigit(c uint8) bool {
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return '0' <= c && c <= '9'
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}
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func assert(t *testing.T, s, want string) {
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if s != want {
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t.Errorf("have %#q want %#q", s, want);
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}
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}
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func typestring(i interface{}) string {
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return Typeof(i).String();
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}
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var typeTests = []pair {
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pair { struct { x int }{}, "int" },
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pair { struct { x int8 }{}, "int8" },
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pair { struct { x int16 }{}, "int16" },
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pair { struct { x int32 }{}, "int32" },
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pair { struct { x int64 }{}, "int64" },
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pair { struct { x uint }{}, "uint" },
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pair { struct { x uint8 }{}, "uint8" },
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pair { struct { x uint16 }{}, "uint16" },
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pair { struct { x uint32 }{}, "uint32" },
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pair { struct { x uint64 }{}, "uint64" },
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pair { struct { x float }{}, "float" },
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pair { struct { x float32 }{}, "float32" },
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pair { struct { x float64 }{}, "float64" },
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pair { struct { x int8 }{}, "int8" },
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pair { struct { x (**int8) }{}, "**int8" },
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pair { struct { x (**integer) }{}, "**reflect_test.integer" },
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pair { struct { x ([32]int32) }{}, "[32]int32" },
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pair { struct { x ([]int8) }{}, "[]int8" },
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pair { struct { x (map[string]int32) }{}, "map[string] int32" },
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pair { struct { x (chan<-string) }{}, "chan<- string" },
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pair { struct { x struct {c chan *int32; d float32} }{}, "struct { c chan *int32; d float32 }" },
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pair { struct { x (func(a int8, b int32)) }{}, "func(int8, int32)" },
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pair { struct { x struct {c func(chan *integer, *int8)} }{}, "struct { c func(chan *reflect_test.integer, *int8) }" },
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pair { struct { x struct {a int8; b int32} }{}, "struct { a int8; b int32 }" },
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pair { struct { x struct {a int8; b int8; c int32} }{}, "struct { a int8; b int8; c int32 }" },
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pair { struct { x struct {a int8; b int8; c int8; d int32} }{}, "struct { a int8; b int8; c int8; d int32 }" },
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pair { struct { x struct {a int8; b int8; c int8; d int8; e int32} }{}, "struct { a int8; b int8; c int8; d int8; e int32 }" },
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pair { struct { x struct {a int8; b int8; c int8; d int8; e int8; f int32} }{}, "struct { a int8; b int8; c int8; d int8; e int8; f int32 }" },
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pair { struct { x struct {a int8 "hi there"; } }{}, `struct { a int8 "hi there" }` },
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pair { struct { x struct {a int8 "hi \x00there\t\n\"\\"; } }{}, `struct { a int8 "hi \x00there\t\n\"\\" }` },
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pair { struct { x struct {f func(args ...)} }{}, "struct { f func(...) }" },
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pair { struct { x (interface { a(func(func(int)(int))(func(func(int))(int))); b() }) }{}, "interface { a (func(func(int) (int)) (func(func(int)) (int))); b () }" },
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}
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var valueTests = []pair {
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pair { (int8)(0), "8" },
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pair { (int16)(0), "16" },
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pair { (int32)(0), "32" },
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pair { (int64)(0), "64" },
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pair { (uint8)(0), "8" },
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pair { (uint16)(0), "16" },
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pair { (uint32)(0), "32" },
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pair { (uint64)(0), "64" },
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pair { (float32)(0), "32.1" },
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pair { (float64)(0), "64.2" },
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pair { (string)(""), "stringy cheese" },
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pair { (bool)(false), "true" },
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pair { (*int8)(nil), "*int8(0)" },
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pair { (**int8)(nil), "**int8(0)" },
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pair { ([5]int32){}, "[5]int32{0, 0, 0, 0, 0}" },
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pair { (**integer)(nil), "**reflect_test.integer(0)" },
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pair { (map[string]int32)(nil), "map[string] int32{<can't iterate on maps>}" },
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pair { (chan<-string)(nil), "chan<- string" },
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pair { (struct {c chan *int32; d float32}){}, "struct { c chan *int32; d float32 }{chan *int32, 0}" },
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pair { (func(a int8, b int32))(nil), "func(int8, int32)(0)" },
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pair { (struct {c func(chan *integer, *int8)}){}, "struct { c func(chan *reflect_test.integer, *int8) }{func(chan *reflect_test.integer, *int8)(0)}" },
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pair { (struct {a int8; b int32}){}, "struct { a int8; b int32 }{0, 0}" },
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pair { (struct {a int8; b int8; c int32}){}, "struct { a int8; b int8; c int32 }{0, 0, 0}" },
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}
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func testType(t *testing.T, i int, typ Type, want string) {
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s := typ.String();
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if s != want {
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t.Errorf("#%d: have %#q, want %#q", i, s, want);
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}
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}
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func TestTypes(t *testing.T) {
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for i, tt := range typeTests {
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testType(t, i, NewValue(tt.i).(*StructValue).Field(0).Type(), tt.s);
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}
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}
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func TestValue(t *testing.T) {
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for i, tt := range valueTests {
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v := NewValue(tt.i);
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switch v := v.(type) {
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case *IntValue:
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v.Set(132);
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case *Int8Value:
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v.Set(8);
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case *Int16Value:
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v.Set(16);
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case *Int32Value:
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v.Set(32);
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case *Int64Value:
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v.Set(64);
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case *UintValue:
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v.Set(132);
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case *Uint8Value:
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v.Set(8);
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case *Uint16Value:
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v.Set(16);
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case *Uint32Value:
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v.Set(32);
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case *Uint64Value:
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v.Set(64);
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case *FloatValue:
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v.Set(3200.0);
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case *Float32Value:
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v.Set(32.1);
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case *Float64Value:
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v.Set(64.2);
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case *StringValue:
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v.Set("stringy cheese");
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case *BoolValue:
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v.Set(true);
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}
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s := valueToString(v);
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if s != tt.s {
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t.Errorf("#%d: have %#q, want %#q", i, s, tt.s);
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}
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}
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}
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var _i = 7;
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var valueToStringTests = []pair {
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pair { 123, "123" },
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pair { 123.4, "123.4" },
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pair { byte(123), "123" },
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pair { "abc", "abc" },
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pair { T{123, 456.75, "hello", &_i}, "reflect_test.T{123, 456.75, hello, *int(&7)}" },
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pair { new(chan *T), "*chan *reflect_test.T(&chan *reflect_test.T)" },
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pair { [10]int{1,2,3,4,5,6,7,8,9,10}, "[10]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}" },
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pair { &[10]int{1,2,3,4,5,6,7,8,9,10}, "*[10]int(&[10]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10})" },
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pair { []int{1,2,3,4,5,6,7,8,9,10}, "[]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}" },
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pair { &[]int{1,2,3,4,5,6,7,8,9,10}, "*[]int(&[]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10})" }
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}
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func TestValueToString(t *testing.T) {
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for i, test := range valueToStringTests {
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s := valueToString(NewValue(test.i));
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if s != test.s {
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t.Errorf("#%d: have %#q, want %#q", i, s, test.s);
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}
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}
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}
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func TestArrayElemSet(t *testing.T) {
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v := NewValue([10]int{1,2,3,4,5,6,7,8,9,10});
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v.(*ArrayValue).Elem(4).(*IntValue).Set(123);
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s := valueToString(v);
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const want = "[10]int{1, 2, 3, 4, 123, 6, 7, 8, 9, 10}";
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if s != want {
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t.Errorf("[10]int: have %#q want %#q", s, want);
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}
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v = NewValue([]int{1,2,3,4,5,6,7,8,9,10});
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v.(*SliceValue).Elem(4).(*IntValue).Set(123);
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s = valueToString(v);
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const want1 = "[]int{1, 2, 3, 4, 123, 6, 7, 8, 9, 10}";
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if s != want1 {
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t.Errorf("[]int: have %#q want %#q", s, want1);
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}
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}
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func TestPtrPointTo(t *testing.T) {
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var ip *int32;
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var i int32 = 1234;
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vip := NewValue(&ip);
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vi := NewValue(i);
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vip.(*PtrValue).Elem().(*PtrValue).PointTo(vi);
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if *ip != 1234 {
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t.Errorf("got %d, want 1234", *ip);
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}
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}
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func TestAll(t *testing.T) { // TODO(r): wrap up better
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testType(t, 1, Typeof((int8)(0)), "int8");
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testType(t, 2, Typeof((*int8)(nil)).(*PtrType).Elem(), "int8");
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typ := Typeof((*struct{c chan *int32; d float32})(nil));
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testType(t, 3, typ, "*struct { c chan *int32; d float32 }");
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etyp := typ.(*PtrType).Elem();
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testType(t, 4, etyp, "struct { c chan *int32; d float32 }");
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styp := etyp.(*StructType);
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f := styp.Field(0);
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testType(t, 5, f.Type, "chan *int32");
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f, present := styp.FieldByName("d");
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if !present {
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t.Errorf("FieldByName says present field is absent");
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}
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testType(t, 6, f.Type, "float32");
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f, present = styp.FieldByName("absent");
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if present {
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t.Errorf("FieldByName says absent field is present");
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}
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typ = Typeof([32]int32{});
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testType(t, 7, typ, "[32]int32");
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testType(t, 8, typ.(*ArrayType).Elem(), "int32");
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typ = Typeof((map[string]*int32)(nil));
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testType(t, 9, typ, "map[string] *int32");
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mtyp := typ.(*MapType);
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testType(t, 10, mtyp.Key(), "string");
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testType(t, 11, mtyp.Elem(), "*int32");
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typ = Typeof((chan<-string)(nil));
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testType(t, 12, typ, "chan<- string");
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testType(t, 13, typ.(*ChanType).Elem(), "string");
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// make sure tag strings are not part of element type
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typ = Typeof(struct{d []uint32 "TAG"}{}).(*StructType).Field(0).Type;
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testType(t, 14, typ, "[]uint32");
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}
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func TestInterfaceGet(t *testing.T) {
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var inter struct { e interface{ } };
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inter.e = 123.456;
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v1 := NewValue(&inter);
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v2 := v1.(*PtrValue).Elem().(*StructValue).Field(0);
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assert(t, v2.Type().String(), "interface { }");
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i2 := v2.(*InterfaceValue).Interface();
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v3 := NewValue(i2);
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assert(t, v3.Type().String(), "float");
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}
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func TestInterfaceValue(t *testing.T) {
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var inter struct { e interface{ } };
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inter.e = 123.456;
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v1 := NewValue(&inter);
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v2 := v1.(*PtrValue).Elem().(*StructValue).Field(0);
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assert(t, v2.Type().String(), "interface { }");
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v3 := v2.(*InterfaceValue).Elem();
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assert(t, v3.Type().String(), "float");
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i3 := v2.Interface();
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if f, ok := i3.(float); !ok {
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t.Error("v2.Interface() did not return float, got ", Typeof(i3));
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}
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}
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func TestFunctionValue(t *testing.T) {
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v := NewValue(func() {});
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if v.Interface() != v.Interface() {
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t.Fatalf("TestFunction != itself");
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}
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assert(t, v.Type().String(), "func()");
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}
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func TestCopyArray(t *testing.T) {
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a := []int{ 1, 2, 3, 4, 10, 9, 8, 7 };
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b := []int{ 11, 22, 33, 44, 1010, 99, 88, 77, 66, 55, 44 };
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c := []int{ 11, 22, 33, 44, 1010, 99, 88, 77, 66, 55, 44 };
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va := NewValue(&a);
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vb := NewValue(&b);
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for i := 0; i < len(b); i++ {
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if b[i] != c[i] {
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t.Fatalf("b != c before test");
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}
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}
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aa := va.(*PtrValue).Elem().(*SliceValue);
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ab := vb.(*PtrValue).Elem().(*SliceValue);
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for tocopy := 1; tocopy <= 7; tocopy++ {
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aa.SetLen(tocopy);
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ArrayCopy(ab, aa);
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aa.SetLen(8);
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for i := 0; i < tocopy; i++ {
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if a[i] != b[i] {
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t.Errorf("(i) tocopy=%d a[%d]=%d, b[%d]=%d",
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tocopy, i, a[i], i, b[i]);
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}
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}
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for i := tocopy; i < len(b); i++ {
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if b[i] != c[i] {
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if i < len(a) {
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t.Errorf("(ii) tocopy=%d a[%d]=%d, b[%d]=%d, c[%d]=%d",
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tocopy, i, a[i], i, b[i], i, c[i]);
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} else {
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t.Errorf("(iii) tocopy=%d b[%d]=%d, c[%d]=%d",
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tocopy, i, b[i], i, c[i]);
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}
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} else {
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t.Logf("tocopy=%d elem %d is okay\n", tocopy, i);
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}
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}
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}
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}
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func TestBigUnnamedStruct(t *testing.T) {
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b := struct{a,b,c,d int64}{1, 2, 3, 4};
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v := NewValue(b);
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b1 := v.Interface().(struct{a,b,c,d int64});
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if b1.a != b.a || b1.b != b.b || b1.c != b.c || b1.d != b.d {
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t.Errorf("NewValue(%v).Interface().(*Big) = %v", b, b1);
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}
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}
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type big struct {
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a, b, c, d, e int64
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}
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func TestBigStruct(t *testing.T) {
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b := big{1, 2, 3, 4, 5};
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v := NewValue(b);
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b1 := v.Interface().(big);
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if b1.a != b.a || b1.b != b.b || b1.c != b.c || b1.d != b.d || b1.e != b.e {
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t.Errorf("NewValue(%v).Interface().(big) = %v", b, b1);
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}
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}
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type Basic struct {
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x int;
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y float32
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}
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type NotBasic Basic
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type DeepEqualTest struct {
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a, b interface{};
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eq bool;
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}
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var deepEqualTests = []DeepEqualTest {
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// Equalities
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DeepEqualTest{ 1, 1, true },
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DeepEqualTest{ int32(1), int32(1), true },
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DeepEqualTest{ 0.5, 0.5, true },
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DeepEqualTest{ float32(0.5), float32(0.5), true },
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DeepEqualTest{ "hello", "hello", true },
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DeepEqualTest{ make([]int, 10), make([]int, 10), true },
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DeepEqualTest{ &[3]int{ 1, 2, 3 }, &[3]int{ 1, 2, 3 }, true },
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DeepEqualTest{ Basic{ 1, 0.5 }, Basic{ 1, 0.5 }, true },
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DeepEqualTest{ os.Error(nil), os.Error(nil), true },
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DeepEqualTest{ map[int]string{ 1:"one", 2:"two" }, map[int]string{ 2:"two", 1:"one" }, true },
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// Inequalities
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DeepEqualTest{ 1, 2, false },
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DeepEqualTest{ int32(1), int32(2), false },
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DeepEqualTest{ 0.5, 0.6, false },
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DeepEqualTest{ float32(0.5), float32(0.6), false },
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DeepEqualTest{ "hello", "hey", false },
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DeepEqualTest{ make([]int, 10), make([]int, 11), false },
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DeepEqualTest{ &[3]int{ 1, 2, 3 }, &[3]int{ 1, 2, 4 }, false },
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DeepEqualTest{ Basic{ 1, 0.5 }, Basic{ 1, 0.6 }, false },
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DeepEqualTest{ Basic{ 1, 0 }, Basic{ 2, 0 }, false },
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DeepEqualTest{ map[int]string{ 1:"one", 3:"two" }, map[int]string{ 2:"two", 1:"one" }, false },
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DeepEqualTest{ map[int]string{ 1:"one", 2:"txo" }, map[int]string{ 2:"two", 1:"one" }, false },
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DeepEqualTest{ map[int]string{ 1:"one", }, map[int]string{ 2:"two", 1:"one" }, false },
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DeepEqualTest{ map[int]string{ 2:"two", 1:"one" }, map[int]string{ 1:"one", }, false },
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// Mismatched types
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DeepEqualTest{ 1, 1.0, false },
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DeepEqualTest{ int32(1), int64(1), false },
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DeepEqualTest{ 0.5, "hello", false },
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DeepEqualTest{ []int{ 1, 2, 3 }, [3]int{ 1, 2, 3 }, false },
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DeepEqualTest{ &[3]interface{} { 1, 2, 4 }, &[3]interface{} { 1, 2, "s" }, false },
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DeepEqualTest{ Basic{ 1, 0.5 }, NotBasic{ 1, 0.5 }, false },
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DeepEqualTest{ map[uint]string{ 1:"one", 2:"two" }, map[int]string{ 2:"two", 1:"one" }, false },
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}
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func TestDeepEqual(t *testing.T) {
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for i, test := range deepEqualTests {
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if r := DeepEqual(test.a, test.b); r != test.eq {
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t.Errorf("DeepEqual(%v, %v) = %v, want %v", test.a, test.b, r, test.eq);
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}
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}
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}
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func TestTypeof(t *testing.T) {
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for i, test := range deepEqualTests {
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v := NewValue(test.a);
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if v == nil {
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continue;
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}
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typ := Typeof(test.a);
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if typ != v.Type() {
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t.Errorf("Typeof(%v) = %v, but NewValue(%v).Type() = %v", test.a, typ, test.a, v.Type());
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}
|
|
}
|
|
}
|
|
|
|
type Recursive struct {
|
|
x int;
|
|
r *Recursive
|
|
}
|
|
|
|
func TestDeepEqualRecursiveStruct(t *testing.T) {
|
|
a, b := new(Recursive), new(Recursive);
|
|
*a = Recursive{ 12, a };
|
|
*b = Recursive{ 12, b };
|
|
if !DeepEqual(a, b) {
|
|
t.Error("DeepEqual(recursive same) = false, want true");
|
|
}
|
|
}
|
|
|
|
type Complex struct {
|
|
a int;
|
|
b [3]*Complex;
|
|
c *string;
|
|
d map[float]float
|
|
}
|
|
|
|
func TestDeepEqualComplexStruct(t *testing.T) {
|
|
m := make(map[float]float);
|
|
stra, strb := "hello", "hello";
|
|
a, b := new(Complex), new(Complex);
|
|
*a = Complex{5, [3]*Complex{a, b, a}, &stra, m};
|
|
*b = Complex{5, [3]*Complex{b, a, a}, &strb, m};
|
|
if !DeepEqual(a, b) {
|
|
t.Error("DeepEqual(complex same) = false, want true");
|
|
}
|
|
}
|
|
|
|
func TestDeepEqualComplexStructInequality(t *testing.T) {
|
|
m := make(map[float]float);
|
|
stra, strb := "hello", "helloo"; // Difference is here
|
|
a, b := new(Complex), new(Complex);
|
|
*a = Complex{5, [3]*Complex{a, b, a}, &stra, m};
|
|
*b = Complex{5, [3]*Complex{b, a, a}, &strb, m};
|
|
if DeepEqual(a, b) {
|
|
t.Error("DeepEqual(complex different) = true, want false");
|
|
}
|
|
}
|
|
|
|
|
|
func check2ndField(x interface{}, offs uintptr, t *testing.T) {
|
|
s := NewValue(x).(*StructValue);
|
|
f := s.Type().(*StructType).Field(1);
|
|
if f.Offset != offs {
|
|
t.Error("mismatched offsets in structure alignment:", f.Offset, offs);
|
|
}
|
|
}
|
|
|
|
// Check that structure alignment & offsets viewed through reflect agree with those
|
|
// from the compiler itself.
|
|
func TestAlignment(t *testing.T) {
|
|
type T1inner struct {
|
|
a int
|
|
}
|
|
type T1 struct {
|
|
T1inner;
|
|
f int;
|
|
}
|
|
type T2inner struct {
|
|
a, b int
|
|
}
|
|
type T2 struct {
|
|
T2inner;
|
|
f int;
|
|
}
|
|
|
|
x := T1{T1inner{2}, 17};
|
|
check2ndField(x, uintptr(unsafe.Pointer(&x.f)) - uintptr(unsafe.Pointer(&x)), t);
|
|
|
|
x1 := T2{T2inner{2, 3}, 17};
|
|
check2ndField(x1, uintptr(unsafe.Pointer(&x1.f)) - uintptr(unsafe.Pointer(&x1)), t);
|
|
}
|
|
|
|
type IsNiller interface {
|
|
IsNil() bool
|
|
}
|
|
|
|
func Nil(a interface{}, t *testing.T) {
|
|
n := NewValue(a).(*StructValue).Field(0).(IsNiller);
|
|
if !n.IsNil() {
|
|
t.Errorf("%v should be nil", a)
|
|
}
|
|
}
|
|
|
|
func NotNil(a interface{}, t *testing.T) {
|
|
n := NewValue(a).(*StructValue).Field(0).(IsNiller);
|
|
if n.IsNil() {
|
|
t.Errorf("value of type %v should not be nil", NewValue(a).Type().String())
|
|
}
|
|
}
|
|
|
|
func TestIsNil(t *testing.T) {
|
|
// These do not implement IsNil
|
|
doNotNil := []interface{}{ int(0), float32(0), struct{a int}{} };
|
|
for i, ts := range doNotNil {
|
|
ty := Typeof(ts);
|
|
v := MakeZero(ty);
|
|
if nilable, ok := v.(IsNiller); ok {
|
|
t.Errorf("%s is nilable; should not be", ts)
|
|
}
|
|
}
|
|
|
|
// These do implement IsNil.
|
|
// Wrap in extra struct to hide interface type.
|
|
doNil := []interface{}{
|
|
struct{x *int}{},
|
|
struct{x interface{}}{},
|
|
struct{x map[string]int}{},
|
|
struct{x func()bool}{},
|
|
struct{x chan int}{},
|
|
struct{x []string}{}
|
|
};
|
|
for i, ts := range doNil {
|
|
ty := Typeof(ts).(*StructType).Field(0).Type;
|
|
v := MakeZero(ty);
|
|
if nilable, ok := v.(IsNiller); !ok {
|
|
t.Errorf("%s %T is not nilable; should be", ts, v)
|
|
}
|
|
}
|
|
|
|
// Check the implementations
|
|
var pi struct {x *int}
|
|
Nil(pi, t);
|
|
pi.x = new(int);
|
|
NotNil(pi, t);
|
|
|
|
var si struct {x []int}
|
|
Nil(si, t);
|
|
si.x = make([]int, 10);
|
|
NotNil(si, t);
|
|
|
|
var ci struct {x chan int}
|
|
Nil(ci, t);
|
|
ci.x = make(chan int);
|
|
NotNil(ci, t);
|
|
|
|
var mi struct {x map[int]int}
|
|
Nil(mi, t);
|
|
mi.x = make(map[int]int);
|
|
NotNil(mi, t);
|
|
|
|
var ii struct {x interface {}}
|
|
Nil(ii, t);
|
|
ii.x = 2;
|
|
NotNil(ii, t);
|
|
|
|
var fi struct {x func(t *testing.T)}
|
|
Nil(fi, t);
|
|
fi.x = TestIsNil;
|
|
NotNil(fi, t);
|
|
}
|
|
|
|
func TestInterfaceExtraction(t *testing.T) {
|
|
var s struct {
|
|
w io.Writer;
|
|
}
|
|
|
|
s.w = os.Stdout;
|
|
v := Indirect(NewValue(&s)).(*StructValue).Field(0).Interface();
|
|
if v != s.w.(interface{}) {
|
|
t.Error("Interface() on interface: ", v, s.w);
|
|
}
|
|
}
|
|
|
|
func TestInterfaceEditing(t *testing.T) {
|
|
// strings are bigger than one word,
|
|
// so the interface conversion allocates
|
|
// memory to hold a string and puts that
|
|
// pointer in the interface.
|
|
var i interface{} = "hello";
|
|
|
|
// if i pass the interface value by value
|
|
// to NewValue, i should get a fresh copy
|
|
// of the value.
|
|
v := NewValue(i);
|
|
|
|
// and setting that copy to "bye" should
|
|
// not change the value stored in i.
|
|
v.(*StringValue).Set("bye");
|
|
if i.(string) != "hello" {
|
|
t.Errorf(`Set("bye") changed i to %s`, i.(string));
|
|
}
|
|
|
|
// the same should be true of smaller items.
|
|
i = 123;
|
|
v = NewValue(i);
|
|
v.(*IntValue).Set(234);
|
|
if i.(int) != 123 {
|
|
t.Errorf("Set(234) changed i to %d", i.(int));
|
|
}
|
|
}
|
|
|
|
func TestNilPtrValueSub(t *testing.T) {
|
|
var pi *int;
|
|
if pv := NewValue(pi).(*PtrValue); pv.Elem() != nil {
|
|
t.Error("NewValue((*int)(nil)).(*PtrValue).Elem() != nil");
|
|
}
|
|
}
|
|
|
|
func TestMap(t *testing.T) {
|
|
m := map[string]int{ "a": 1, "b": 2 };
|
|
mv := NewValue(m).(*MapValue);
|
|
if n := mv.Len(); n != len(m) {
|
|
t.Errorf("Len = %d, want %d", n, len(m));
|
|
}
|
|
keys := mv.Keys();
|
|
i := 0;
|
|
newmap := MakeMap(mv.Type().(*MapType));
|
|
for k, v := range m {
|
|
// Check that returned Keys match keys in range.
|
|
// These aren't required to be in the same order,
|
|
// but they are in this implementation, which makes
|
|
// the test easier.
|
|
if i >= len(keys) {
|
|
t.Errorf("Missing key #%d %q", i, k);
|
|
} else if kv := keys[i].(*StringValue); kv.Get() != k {
|
|
t.Errorf("Keys[%d] = %q, want %q", i, kv.Get(), k);
|
|
}
|
|
i++;
|
|
|
|
// Check that value lookup is correct.
|
|
vv := mv.Elem(NewValue(k));
|
|
if vi := vv.(*IntValue).Get(); vi != v {
|
|
t.Errorf("Key %q: have value %d, want %d", vi, v);
|
|
}
|
|
|
|
// Copy into new map.
|
|
newmap.SetElem(NewValue(k), NewValue(v));
|
|
}
|
|
vv := mv.Elem(NewValue("not-present"));
|
|
if vv != nil {
|
|
t.Errorf("Invalid key: got non-nil value %s", valueToString(vv));
|
|
}
|
|
|
|
newm := newmap.Interface().(map[string]int);
|
|
if len(newm) != len(m) {
|
|
t.Errorf("length after copy: newm=%d, m=%d", newm, m);
|
|
}
|
|
|
|
for k, v := range newm {
|
|
mv, ok := m[k];
|
|
if mv != v {
|
|
t.Errorf("newm[%q] = %d, but m[%q] = %d, %v", k, v, k, mv, ok);
|
|
}
|
|
}
|
|
|
|
newmap.SetElem(NewValue("a"), nil);
|
|
v, ok := newm["a"];
|
|
if ok {
|
|
t.Errorf("newm[\"a\"] = %d after delete", v);
|
|
}
|
|
}
|
|
|
|
func TestChan(t *testing.T) {
|
|
for loop := 0; loop < 2; loop++ {
|
|
var c chan int;
|
|
var cv *ChanValue;
|
|
|
|
// check both ways to allocate channels
|
|
switch loop {
|
|
case 1:
|
|
c = make(chan int, 1);
|
|
cv = NewValue(c).(*ChanValue);
|
|
case 0:
|
|
cv = MakeChan(Typeof(c).(*ChanType), 1);
|
|
c = cv.Interface().(chan int);
|
|
}
|
|
|
|
// Send
|
|
cv.Send(NewValue(2));
|
|
if i := <-c; i != 2 {
|
|
t.Errorf("reflect Send 2, native recv %d", i);
|
|
}
|
|
|
|
// Recv
|
|
c <- 3;
|
|
if i := cv.Recv().(*IntValue).Get(); i != 3 {
|
|
t.Errorf("native send 3, reflect Recv %d", i);
|
|
}
|
|
|
|
// TryRecv fail
|
|
val := cv.TryRecv();
|
|
if val != nil {
|
|
t.Errorf("TryRecv on empty chan: %s", valueToString(val));
|
|
}
|
|
|
|
// TryRecv success
|
|
c <- 4;
|
|
val = cv.TryRecv();
|
|
if val == nil {
|
|
t.Errorf("TryRecv on ready chan got nil");
|
|
} else if i := val.(*IntValue).Get(); i != 4 {
|
|
t.Errorf("native send 4, TryRecv %d", i);
|
|
}
|
|
|
|
// TrySend fail
|
|
c <- 100;
|
|
ok := cv.TrySend(NewValue(5));
|
|
i := <-c;
|
|
if ok {
|
|
t.Errorf("TrySend on full chan succeeded: value %d", i);
|
|
}
|
|
|
|
// TrySend success
|
|
ok = cv.TrySend(NewValue(6));
|
|
if !ok {
|
|
t.Errorf("TrySend on empty chan failed");
|
|
} else {
|
|
if i = <-c; i != 6 {
|
|
t.Errorf("TrySend 6, recv %d", i);
|
|
}
|
|
}
|
|
}
|
|
|
|
// check creation of unbuffered channel
|
|
var c chan int;
|
|
cv := MakeChan(Typeof(c).(*ChanType), 0);
|
|
c = cv.Interface().(chan int);
|
|
if cv.TrySend(NewValue(7)) {
|
|
t.Errorf("TrySend on sync chan succeeded");
|
|
}
|
|
if cv.TryRecv() != nil {
|
|
t.Errorf("TryRecv on sync chan succeeded");
|
|
}
|
|
}
|
|
|
|
// Difficult test for function call because of
|
|
// implicit padding between arguments.
|
|
func dummy(b byte, c int, d byte) (i byte, j int, k byte){
|
|
return b, c, d;
|
|
}
|
|
|
|
func TestFunc(t *testing.T) {
|
|
ret := NewValue(dummy).(*FuncValue).Call([]Value{NewValue(byte(10)), NewValue(20), NewValue(byte(30))});
|
|
if len(ret) != 3 {
|
|
t.Fatalf("Call returned %d values, want 3", len(ret));
|
|
}
|
|
|
|
i := ret[0].(*Uint8Value).Get();
|
|
j := ret[1].(*IntValue).Get();
|
|
k := ret[2].(*Uint8Value).Get();
|
|
if i != 10 || j != 20 || k != 30 {
|
|
t.Errorf("Call returned %d, %d, %d; want 10, 20, 30", i, j, k);
|
|
}
|
|
}
|
|
|
|
type Point struct {
|
|
x, y int;
|
|
}
|
|
|
|
func (p Point) Dist(scale int) int {
|
|
return p.x*p.x*scale + p.y*p.y*scale;
|
|
}
|
|
|
|
func TestMethod(t *testing.T) {
|
|
// Non-curried method of type.
|
|
p := Point{3, 4};
|
|
i := Typeof(p).Method(0).Func.Call([]Value{NewValue(p), NewValue(10)})[0].(*IntValue).Get();
|
|
if i != 250 {
|
|
t.Errorf("Type Method returned %d; want 250", i);
|
|
}
|
|
|
|
// Curried method of value.
|
|
i = NewValue(p).Method(0).Call([]Value{NewValue(10)})[0].(*IntValue).Get();
|
|
if i != 250 {
|
|
t.Errorf("Value Method returned %d; want 250", i);
|
|
}
|
|
|
|
// Curried method of interface value.
|
|
// Have to wrap interface value in a struct to get at it.
|
|
// Passing it to NewValue directly would
|
|
// access the underlying Point, not the interface.
|
|
var s = struct{x interface{Dist(int) int}}{p};
|
|
pv := NewValue(s).(*StructValue).Field(0);
|
|
i = pv.Method(0).Call([]Value{NewValue(10)})[0].(*IntValue).Get();
|
|
if i != 250 {
|
|
t.Errorf("Interface Method returned %d; want 250", i);
|
|
}
|
|
}
|
|
|
|
func TestInterfaceSet(t *testing.T) {
|
|
p := &Point{3, 4};
|
|
|
|
var s struct {
|
|
I interface {};
|
|
P interface { Dist(int)int };
|
|
}
|
|
sv := NewValue(&s).(*PtrValue).Elem().(*StructValue);
|
|
sv.Field(0).(*InterfaceValue).Set(NewValue(p));
|
|
if q := s.I.(*Point); q != p {
|
|
t.Errorf("i: have %p want %p", q, p);
|
|
}
|
|
|
|
pv := sv.Field(1).(*InterfaceValue);
|
|
pv.Set(NewValue(p));
|
|
if q := s.P.(*Point); q != p {
|
|
t.Errorf("i: have %p want %p", q, p);
|
|
}
|
|
|
|
i := pv.Method(0).Call([]Value{NewValue(10)})[0].(*IntValue).Get();
|
|
if i != 250 {
|
|
t.Errorf("Interface Method returned %d; want 250", i);
|
|
}
|
|
}
|
|
|
|
type T1 struct { a string; int; }
|
|
|
|
func TestAnonymousFields(t *testing.T) {
|
|
var field StructField;
|
|
var ok bool;
|
|
var t1 T1;
|
|
type1 := Typeof(t1).(*StructType);
|
|
if field, ok = type1.FieldByName("int"); !ok {
|
|
t.Error("no field 'int'");
|
|
}
|
|
if field.Index[0] != 1 {
|
|
t.Error("field index should be 1; is", field.Index);
|
|
}
|
|
}
|
|
|
|
type FTest struct {
|
|
s interface{};
|
|
name string;
|
|
index []int;
|
|
value int;
|
|
}
|
|
|
|
type D1 struct {
|
|
d int;
|
|
}
|
|
type D2 struct {
|
|
d int;
|
|
}
|
|
|
|
type S0 struct {
|
|
a, b, c int;
|
|
D1;
|
|
D2;
|
|
}
|
|
|
|
type S1 struct {
|
|
b int;
|
|
S0;
|
|
}
|
|
|
|
type S2 struct {
|
|
a int;
|
|
*S1;
|
|
}
|
|
|
|
type S1x struct {
|
|
S1;
|
|
}
|
|
|
|
type S1y struct {
|
|
S1;
|
|
}
|
|
|
|
type S3 struct {
|
|
S1x;
|
|
S2;
|
|
d, e int;
|
|
*S1y;
|
|
}
|
|
|
|
type S4 struct {
|
|
*S4;
|
|
a int;
|
|
}
|
|
|
|
var fieldTests = []FTest {
|
|
FTest{ struct{ }{}, "", nil, 0 },
|
|
FTest{ struct{ }{}, "foo", nil, 0 },
|
|
FTest{ S0{a: 'a'}, "a", []int{0}, 'a' },
|
|
FTest{ S0{}, "d", nil, 0 },
|
|
FTest{ S1{S0: S0{a: 'a'}}, "a", []int{1, 0}, 'a' },
|
|
FTest{ S1{b: 'b'}, "b", []int{0}, 'b' },
|
|
FTest{ S1{}, "S0", []int{1}, 0 },
|
|
FTest{ S1{S0: S0{c: 'c'}}, "c", []int{1, 2}, 'c' },
|
|
FTest{ S2{a: 'a'}, "a", []int{0}, 'a' },
|
|
FTest{ S2{}, "S1", []int{1}, 0 },
|
|
FTest{ S2{S1: &S1{b: 'b'}}, "b", []int{1, 0}, 'b' },
|
|
FTest{ S2{S1: &S1{S0: S0{c: 'c'}}}, "c", []int{1, 1, 2}, 'c' },
|
|
FTest{ S2{}, "d", nil, 0 },
|
|
FTest{ S3{}, "S1", nil, 0 },
|
|
FTest{ S3{S2: S2{a: 'a'}}, "a", []int{1, 0}, 'a' },
|
|
FTest{ S3{}, "b", nil, 0 },
|
|
FTest{ S3{d: 'd'}, "d", []int{2}, 0 },
|
|
FTest{ S3{e: 'e'}, "e", []int{3}, 'e' },
|
|
FTest{ S4{a: 'a'}, "a", []int{1}, 'a' },
|
|
FTest{ S4{}, "b", nil, 0 },
|
|
}
|
|
|
|
func TestFieldByIndex(t *testing.T) {
|
|
for _, test := range fieldTests {
|
|
s := Typeof(test.s).(*StructType);
|
|
f := s.FieldByIndex(test.index);
|
|
if f.Name != "" {
|
|
if test.index != nil {
|
|
if f.Name != test.name {
|
|
t.Errorf("%s.%s found; want %s", s.Name(), f.Name, test.name);
|
|
}
|
|
} else {
|
|
t.Errorf("%s.%s found", s.Name(), f.Name);
|
|
}
|
|
} else if len(test.index) > 0 {
|
|
t.Errorf("%s.%s not found", s.Name(), test.name);
|
|
}
|
|
|
|
if test.value != 0 {
|
|
v := NewValue(test.s).(*StructValue).FieldByIndex(test.index);
|
|
if v != nil {
|
|
if x, ok := v.Interface().(int); ok {
|
|
if x != test.value {
|
|
t.Errorf("%s%v is %d; want %d", s.Name(), test.index, x, test.value);
|
|
}
|
|
} else {
|
|
t.Errorf("%s%v value not an int", s.Name(), test.index);
|
|
}
|
|
} else {
|
|
t.Errorf("%s%v value not found", s.Name(), test.index);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestFieldByName(t *testing.T) {
|
|
for _, test := range fieldTests {
|
|
s := Typeof(test.s).(*StructType);
|
|
f, found := s.FieldByName(test.name);
|
|
if found {
|
|
if test.index != nil {
|
|
// Verify field depth and index.
|
|
if len(f.Index) != len(test.index) {
|
|
t.Errorf("%s.%s depth %d; want %d", s.Name(), test.name, len(f.Index), len(test.index));
|
|
} else {
|
|
for i, x := range f.Index {
|
|
if x != test.index[i] {
|
|
t.Errorf("%s.%s.Index[%d] is %d; want %d", s.Name(), test.name, i, x, test.index[i]);
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
t.Errorf("%s.%s found", s.Name(), f.Name);
|
|
}
|
|
} else if len(test.index) > 0 {
|
|
t.Errorf("%s.%s not found", s.Name(), test.name);
|
|
}
|
|
|
|
if test.value != 0 {
|
|
v := NewValue(test.s).(*StructValue).FieldByName(test.name);
|
|
if v != nil {
|
|
if x, ok := v.Interface().(int); ok {
|
|
if x != test.value {
|
|
t.Errorf("%s.%s is %d; want %d", s.Name(), test.name, x, test.value);
|
|
}
|
|
} else {
|
|
t.Errorf("%s.%s value not an int", s.Name(), test.name);
|
|
}
|
|
} else {
|
|
t.Errorf("%s.%s value not found", s.Name(), test.name);
|
|
}
|
|
}
|
|
}
|
|
}
|