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-rw-r--r--libgo/go/reflect/all_test.go1392
1 files changed, 1392 insertions, 0 deletions
diff --git a/libgo/go/reflect/all_test.go b/libgo/go/reflect/all_test.go
new file mode 100644
index 000000000..320f44203
--- /dev/null
+++ b/libgo/go/reflect/all_test.go
@@ -0,0 +1,1392 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package reflect_test
+
+import (
+ "container/vector"
+ "fmt"
+ "io"
+ "os"
+ . "reflect"
+ "testing"
+ "unsafe"
+)
+
+type integer int
+type T struct {
+ a int
+ b float64
+ c string
+ d *int
+}
+
+type pair struct {
+ i interface{}
+ s string
+}
+
+func isDigit(c uint8) bool { return '0' <= c && c <= '9' }
+
+func assert(t *testing.T, s, want string) {
+ if s != want {
+ t.Errorf("have %#q want %#q", s, want)
+ }
+}
+
+func typestring(i interface{}) string { return Typeof(i).String() }
+
+var typeTests = []pair{
+ {struct{ x int }{}, "int"},
+ {struct{ x int8 }{}, "int8"},
+ {struct{ x int16 }{}, "int16"},
+ {struct{ x int32 }{}, "int32"},
+ {struct{ x int64 }{}, "int64"},
+ {struct{ x uint }{}, "uint"},
+ {struct{ x uint8 }{}, "uint8"},
+ {struct{ x uint16 }{}, "uint16"},
+ {struct{ x uint32 }{}, "uint32"},
+ {struct{ x uint64 }{}, "uint64"},
+ {struct{ x float32 }{}, "float32"},
+ {struct{ x float64 }{}, "float64"},
+ {struct{ x int8 }{}, "int8"},
+ {struct{ x (**int8) }{}, "**int8"},
+ {struct{ x (**integer) }{}, "**reflect_test.integer"},
+ {struct{ x ([32]int32) }{}, "[32]int32"},
+ {struct{ x ([]int8) }{}, "[]int8"},
+ {struct{ x (map[string]int32) }{}, "map[string] int32"},
+ {struct{ x (chan<- string) }{}, "chan<- string"},
+ {struct {
+ x struct {
+ c chan *int32
+ d float32
+ }
+ }{},
+ "struct { c chan *int32; d float32 }",
+ },
+ {struct{ x (func(a int8, b int32)) }{}, "func(int8, int32)"},
+ {struct {
+ x struct {
+ c func(chan *integer, *int8)
+ }
+ }{},
+ "struct { c func(chan *reflect_test.integer, *int8) }",
+ },
+ {struct {
+ x struct {
+ a int8
+ b int32
+ }
+ }{},
+ "struct { a int8; b int32 }",
+ },
+ {struct {
+ x struct {
+ a int8
+ b int8
+ c int32
+ }
+ }{},
+ "struct { a int8; b int8; c int32 }",
+ },
+ {struct {
+ x struct {
+ a int8
+ b int8
+ c int8
+ d int32
+ }
+ }{},
+ "struct { a int8; b int8; c int8; d int32 }",
+ },
+ {struct {
+ x struct {
+ a int8
+ b int8
+ c int8
+ d int8
+ e int32
+ }
+ }{},
+ "struct { a int8; b int8; c int8; d int8; e int32 }",
+ },
+ {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 }",
+ },
+ {struct {
+ x struct {
+ a int8 "hi there"
+ }
+ }{},
+ `struct { a int8 "hi there" }`,
+ },
+ {struct {
+ x struct {
+ a int8 "hi \x00there\t\n\"\\"
+ }
+ }{},
+ `struct { a int8 "hi \x00there\t\n\"\\" }`,
+ },
+ {struct {
+ x struct {
+ f func(args ...int)
+ }
+ }{},
+ "struct { f func(...int) }",
+ },
+ {struct {
+ x (interface {
+ a(func(func(int) int) func(func(int)) int)
+ b()
+ })
+ }{},
+ "interface { a(func(func(int) int) func(func(int)) int); b() }",
+ },
+}
+
+var valueTests = []pair{
+ {(int8)(0), "8"},
+ {(int16)(0), "16"},
+ {(int32)(0), "32"},
+ {(int64)(0), "64"},
+ {(uint8)(0), "8"},
+ {(uint16)(0), "16"},
+ {(uint32)(0), "32"},
+ {(uint64)(0), "64"},
+ {(float32)(0), "256.25"},
+ {(float64)(0), "512.125"},
+ {(string)(""), "stringy cheese"},
+ {(bool)(false), "true"},
+ {(*int8)(nil), "*int8(0)"},
+ {(**int8)(nil), "**int8(0)"},
+ {[5]int32{}, "[5]int32{0, 0, 0, 0, 0}"},
+ {(**integer)(nil), "**reflect_test.integer(0)"},
+ {(map[string]int32)(nil), "map[string] int32{<can't iterate on maps>}"},
+ {(chan<- string)(nil), "chan<- string"},
+ {struct {
+ c chan *int32
+ d float32
+ }{},
+ "struct { c chan *int32; d float32 }{chan *int32, 0}",
+ },
+ {(func(a int8, b int32))(nil), "func(int8, int32)(0)"},
+ {struct{ c func(chan *integer, *int8) }{},
+ "struct { c func(chan *reflect_test.integer, *int8) }{func(chan *reflect_test.integer, *int8)(0)}",
+ },
+ {struct {
+ a int8
+ b int32
+ }{},
+ "struct { a int8; b int32 }{0, 0}",
+ },
+ {struct {
+ a int8
+ b int8
+ c int32
+ }{},
+ "struct { a int8; b int8; c int32 }{0, 0, 0}",
+ },
+}
+
+func testType(t *testing.T, i int, typ Type, want string) {
+ s := typ.String()
+ if s != want {
+ t.Errorf("#%d: have %#q, want %#q", i, s, want)
+ }
+}
+
+func TestTypes(t *testing.T) {
+ for i, tt := range typeTests {
+ testType(t, i, NewValue(tt.i).(*StructValue).Field(0).Type(), tt.s)
+ }
+}
+
+func TestSet(t *testing.T) {
+ for i, tt := range valueTests {
+ v := NewValue(tt.i)
+ switch v := v.(type) {
+ case *IntValue:
+ switch v.Type().Kind() {
+ case Int:
+ v.Set(132)
+ case Int8:
+ v.Set(8)
+ case Int16:
+ v.Set(16)
+ case Int32:
+ v.Set(32)
+ case Int64:
+ v.Set(64)
+ }
+ case *UintValue:
+ switch v.Type().Kind() {
+ case Uint:
+ v.Set(132)
+ case Uint8:
+ v.Set(8)
+ case Uint16:
+ v.Set(16)
+ case Uint32:
+ v.Set(32)
+ case Uint64:
+ v.Set(64)
+ }
+ case *FloatValue:
+ switch v.Type().Kind() {
+ case Float32:
+ v.Set(256.25)
+ case Float64:
+ v.Set(512.125)
+ }
+ case *ComplexValue:
+ switch v.Type().Kind() {
+ case Complex64:
+ v.Set(532.125 + 10i)
+ case Complex128:
+ v.Set(564.25 + 1i)
+ }
+ case *StringValue:
+ v.Set("stringy cheese")
+ case *BoolValue:
+ v.Set(true)
+ }
+ s := valueToString(v)
+ if s != tt.s {
+ t.Errorf("#%d: have %#q, want %#q", i, s, tt.s)
+ }
+ }
+}
+
+func TestSetValue(t *testing.T) {
+ for i, tt := range valueTests {
+ v := NewValue(tt.i)
+ switch v := v.(type) {
+ case *IntValue:
+ switch v.Type().Kind() {
+ case Int:
+ v.SetValue(NewValue(int(132)))
+ case Int8:
+ v.SetValue(NewValue(int8(8)))
+ case Int16:
+ v.SetValue(NewValue(int16(16)))
+ case Int32:
+ v.SetValue(NewValue(int32(32)))
+ case Int64:
+ v.SetValue(NewValue(int64(64)))
+ }
+ case *UintValue:
+ switch v.Type().Kind() {
+ case Uint:
+ v.SetValue(NewValue(uint(132)))
+ case Uint8:
+ v.SetValue(NewValue(uint8(8)))
+ case Uint16:
+ v.SetValue(NewValue(uint16(16)))
+ case Uint32:
+ v.SetValue(NewValue(uint32(32)))
+ case Uint64:
+ v.SetValue(NewValue(uint64(64)))
+ }
+ case *FloatValue:
+ switch v.Type().Kind() {
+ case Float32:
+ v.SetValue(NewValue(float32(256.25)))
+ case Float64:
+ v.SetValue(NewValue(512.125))
+ }
+ case *ComplexValue:
+ switch v.Type().Kind() {
+ case Complex64:
+ v.SetValue(NewValue(complex64(532.125 + 10i)))
+ case Complex128:
+ v.SetValue(NewValue(complex128(564.25 + 1i)))
+ }
+
+ case *StringValue:
+ v.SetValue(NewValue("stringy cheese"))
+ case *BoolValue:
+ v.SetValue(NewValue(true))
+ }
+ s := valueToString(v)
+ if s != tt.s {
+ t.Errorf("#%d: have %#q, want %#q", i, s, tt.s)
+ }
+ }
+}
+
+var _i = 7
+
+var valueToStringTests = []pair{
+ {123, "123"},
+ {123.5, "123.5"},
+ {byte(123), "123"},
+ {"abc", "abc"},
+ {T{123, 456.75, "hello", &_i}, "reflect_test.T{123, 456.75, hello, *int(&7)}"},
+ {new(chan *T), "*chan *reflect_test.T(&chan *reflect_test.T)"},
+ {[10]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, "[10]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}"},
+ {&[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})"},
+ {[]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, "[]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}"},
+ {&[]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, "*[]int(&[]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10})"},
+}
+
+func TestValueToString(t *testing.T) {
+ for i, test := range valueToStringTests {
+ s := valueToString(NewValue(test.i))
+ if s != test.s {
+ t.Errorf("#%d: have %#q, want %#q", i, s, test.s)
+ }
+ }
+}
+
+func TestArrayElemSet(t *testing.T) {
+ v := NewValue([10]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10})
+ v.(*ArrayValue).Elem(4).(*IntValue).Set(123)
+ s := valueToString(v)
+ const want = "[10]int{1, 2, 3, 4, 123, 6, 7, 8, 9, 10}"
+ if s != want {
+ t.Errorf("[10]int: have %#q want %#q", s, want)
+ }
+
+ v = NewValue([]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10})
+ v.(*SliceValue).Elem(4).(*IntValue).Set(123)
+ s = valueToString(v)
+ const want1 = "[]int{1, 2, 3, 4, 123, 6, 7, 8, 9, 10}"
+ if s != want1 {
+ t.Errorf("[]int: have %#q want %#q", s, want1)
+ }
+}
+
+func TestPtrPointTo(t *testing.T) {
+ var ip *int32
+ var i int32 = 1234
+ vip := NewValue(&ip)
+ vi := NewValue(i)
+ vip.(*PtrValue).Elem().(*PtrValue).PointTo(vi)
+ if *ip != 1234 {
+ t.Errorf("got %d, want 1234", *ip)
+ }
+
+ ip = nil
+ vp := NewValue(ip).(*PtrValue)
+ vp.PointTo(vp.Elem())
+ if ip != nil {
+ t.Errorf("got non-nil (%p), want nil", ip)
+ }
+}
+
+func TestPtrSetNil(t *testing.T) {
+ var i int32 = 1234
+ ip := &i
+ vip := NewValue(&ip)
+ vip.(*PtrValue).Elem().(*PtrValue).Set(nil)
+ if ip != nil {
+ t.Errorf("got non-nil (%d), want nil", *ip)
+ }
+}
+
+func TestMapSetNil(t *testing.T) {
+ m := make(map[string]int)
+ vm := NewValue(&m)
+ vm.(*PtrValue).Elem().(*MapValue).Set(nil)
+ if m != nil {
+ t.Errorf("got non-nil (%p), want nil", m)
+ }
+}
+
+
+func TestAll(t *testing.T) {
+ testType(t, 1, Typeof((int8)(0)), "int8")
+ testType(t, 2, Typeof((*int8)(nil)).(*PtrType).Elem(), "int8")
+
+ typ := Typeof((*struct {
+ c chan *int32
+ d float32
+ })(nil))
+ testType(t, 3, typ, "*struct { c chan *int32; d float32 }")
+ etyp := typ.(*PtrType).Elem()
+ testType(t, 4, etyp, "struct { c chan *int32; d float32 }")
+ styp := etyp.(*StructType)
+ f := styp.Field(0)
+ testType(t, 5, f.Type, "chan *int32")
+
+ f, present := styp.FieldByName("d")
+ if !present {
+ t.Errorf("FieldByName says present field is absent")
+ }
+ testType(t, 6, f.Type, "float32")
+
+ f, present = styp.FieldByName("absent")
+ if present {
+ t.Errorf("FieldByName says absent field is present")
+ }
+
+ typ = Typeof([32]int32{})
+ testType(t, 7, typ, "[32]int32")
+ testType(t, 8, typ.(*ArrayType).Elem(), "int32")
+
+ typ = Typeof((map[string]*int32)(nil))
+ testType(t, 9, typ, "map[string] *int32")
+ mtyp := typ.(*MapType)
+ testType(t, 10, mtyp.Key(), "string")
+ testType(t, 11, mtyp.Elem(), "*int32")
+
+ typ = Typeof((chan<- string)(nil))
+ testType(t, 12, typ, "chan<- string")
+ testType(t, 13, typ.(*ChanType).Elem(), "string")
+
+ // make sure tag strings are not part of element type
+ typ = Typeof(struct {
+ d []uint32 "TAG"
+ }{}).(*StructType).Field(0).Type
+ testType(t, 14, typ, "[]uint32")
+}
+
+func TestInterfaceGet(t *testing.T) {
+ var inter struct {
+ e interface{}
+ }
+ inter.e = 123.456
+ v1 := NewValue(&inter)
+ v2 := v1.(*PtrValue).Elem().(*StructValue).Field(0)
+ assert(t, v2.Type().String(), "interface { }")
+ i2 := v2.(*InterfaceValue).Interface()
+ v3 := NewValue(i2)
+ assert(t, v3.Type().String(), "float64")
+}
+
+func TestInterfaceValue(t *testing.T) {
+ var inter struct {
+ e interface{}
+ }
+ inter.e = 123.456
+ v1 := NewValue(&inter)
+ v2 := v1.(*PtrValue).Elem().(*StructValue).Field(0)
+ assert(t, v2.Type().String(), "interface { }")
+ v3 := v2.(*InterfaceValue).Elem()
+ assert(t, v3.Type().String(), "float64")
+
+ i3 := v2.Interface()
+ if _, ok := i3.(float64); !ok {
+ t.Error("v2.Interface() did not return float64, got ", Typeof(i3))
+ }
+}
+
+func TestFunctionValue(t *testing.T) {
+ v := NewValue(func() {})
+ if v.Interface() != v.Interface() {
+ t.Fatalf("TestFunction != itself")
+ }
+ assert(t, v.Type().String(), "func()")
+}
+
+var appendTests = []struct {
+ orig, extra []int
+}{
+ {make([]int, 2, 4), []int{22}},
+ {make([]int, 2, 4), []int{22, 33, 44}},
+}
+
+func TestAppend(t *testing.T) {
+ for i, test := range appendTests {
+ origLen, extraLen := len(test.orig), len(test.extra)
+ want := append(test.orig, test.extra...)
+ // Convert extra from []int to []Value.
+ e0 := make([]Value, len(test.extra))
+ for j, e := range test.extra {
+ e0[j] = NewValue(e)
+ }
+ // Convert extra from []int to *SliceValue.
+ e1 := NewValue(test.extra).(*SliceValue)
+ // Test Append.
+ a0 := NewValue(test.orig).(*SliceValue)
+ have0 := Append(a0, e0...).Interface().([]int)
+ if !DeepEqual(have0, want) {
+ t.Errorf("Append #%d: have %v, want %v", i, have0, want)
+ }
+ // Check that the orig and extra slices were not modified.
+ if len(test.orig) != origLen {
+ t.Errorf("Append #%d origLen: have %v, want %v", i, len(test.orig), origLen)
+ }
+ if len(test.extra) != extraLen {
+ t.Errorf("Append #%d extraLen: have %v, want %v", i, len(test.extra), extraLen)
+ }
+ // Test AppendSlice.
+ a1 := NewValue(test.orig).(*SliceValue)
+ have1 := AppendSlice(a1, e1).Interface().([]int)
+ if !DeepEqual(have1, want) {
+ t.Errorf("AppendSlice #%d: have %v, want %v", i, have1, want)
+ }
+ // Check that the orig and extra slices were not modified.
+ if len(test.orig) != origLen {
+ t.Errorf("AppendSlice #%d origLen: have %v, want %v", i, len(test.orig), origLen)
+ }
+ if len(test.extra) != extraLen {
+ t.Errorf("AppendSlice #%d extraLen: have %v, want %v", i, len(test.extra), extraLen)
+ }
+ }
+}
+
+func TestCopy(t *testing.T) {
+ a := []int{1, 2, 3, 4, 10, 9, 8, 7}
+ b := []int{11, 22, 33, 44, 1010, 99, 88, 77, 66, 55, 44}
+ c := []int{11, 22, 33, 44, 1010, 99, 88, 77, 66, 55, 44}
+ for i := 0; i < len(b); i++ {
+ if b[i] != c[i] {
+ t.Fatalf("b != c before test")
+ }
+ }
+ aa := NewValue(a).(*SliceValue)
+ ab := NewValue(b).(*SliceValue)
+ for tocopy := 1; tocopy <= 7; tocopy++ {
+ aa.SetLen(tocopy)
+ Copy(ab, aa)
+ aa.SetLen(8)
+ for i := 0; i < tocopy; i++ {
+ if a[i] != b[i] {
+ t.Errorf("(i) tocopy=%d a[%d]=%d, b[%d]=%d",
+ tocopy, i, a[i], i, b[i])
+ }
+ }
+ for i := tocopy; i < len(b); i++ {
+ if b[i] != c[i] {
+ if i < len(a) {
+ t.Errorf("(ii) tocopy=%d a[%d]=%d, b[%d]=%d, c[%d]=%d",
+ tocopy, i, a[i], i, b[i], i, c[i])
+ } else {
+ t.Errorf("(iii) tocopy=%d b[%d]=%d, c[%d]=%d",
+ tocopy, i, b[i], i, c[i])
+ }
+ } else {
+ t.Logf("tocopy=%d elem %d is okay\n", tocopy, i)
+ }
+ }
+ }
+}
+
+func TestBigUnnamedStruct(t *testing.T) {
+ b := struct{ a, b, c, d int64 }{1, 2, 3, 4}
+ v := NewValue(b)
+ b1 := v.Interface().(struct {
+ a, b, c, d int64
+ })
+ if b1.a != b.a || b1.b != b.b || b1.c != b.c || b1.d != b.d {
+ t.Errorf("NewValue(%v).Interface().(*Big) = %v", b, b1)
+ }
+}
+
+type big struct {
+ a, b, c, d, e int64
+}
+
+func TestBigStruct(t *testing.T) {
+ b := big{1, 2, 3, 4, 5}
+ v := NewValue(b)
+ b1 := v.Interface().(big)
+ if b1.a != b.a || b1.b != b.b || b1.c != b.c || b1.d != b.d || b1.e != b.e {
+ t.Errorf("NewValue(%v).Interface().(big) = %v", b, b1)
+ }
+}
+
+type Basic struct {
+ x int
+ y float32
+}
+
+type NotBasic Basic
+
+type DeepEqualTest struct {
+ a, b interface{}
+ eq bool
+}
+
+var deepEqualTests = []DeepEqualTest{
+ // Equalities
+ {1, 1, true},
+ {int32(1), int32(1), true},
+ {0.5, 0.5, true},
+ {float32(0.5), float32(0.5), true},
+ {"hello", "hello", true},
+ {make([]int, 10), make([]int, 10), true},
+ {&[3]int{1, 2, 3}, &[3]int{1, 2, 3}, true},
+ {Basic{1, 0.5}, Basic{1, 0.5}, true},
+ {os.Error(nil), os.Error(nil), true},
+ {map[int]string{1: "one", 2: "two"}, map[int]string{2: "two", 1: "one"}, true},
+
+ // Inequalities
+ {1, 2, false},
+ {int32(1), int32(2), false},
+ {0.5, 0.6, false},
+ {float32(0.5), float32(0.6), false},
+ {"hello", "hey", false},
+ {make([]int, 10), make([]int, 11), false},
+ {&[3]int{1, 2, 3}, &[3]int{1, 2, 4}, false},
+ {Basic{1, 0.5}, Basic{1, 0.6}, false},
+ {Basic{1, 0}, Basic{2, 0}, false},
+ {map[int]string{1: "one", 3: "two"}, map[int]string{2: "two", 1: "one"}, false},
+ {map[int]string{1: "one", 2: "txo"}, map[int]string{2: "two", 1: "one"}, false},
+ {map[int]string{1: "one"}, map[int]string{2: "two", 1: "one"}, false},
+ {map[int]string{2: "two", 1: "one"}, map[int]string{1: "one"}, false},
+ {nil, 1, false},
+ {1, nil, false},
+
+ // Mismatched types
+ {1, 1.0, false},
+ {int32(1), int64(1), false},
+ {0.5, "hello", false},
+ {[]int{1, 2, 3}, [3]int{1, 2, 3}, false},
+ {&[3]interface{}{1, 2, 4}, &[3]interface{}{1, 2, "s"}, false},
+ {Basic{1, 0.5}, NotBasic{1, 0.5}, false},
+ {map[uint]string{1: "one", 2: "two"}, map[int]string{2: "two", 1: "one"}, false},
+}
+
+func TestDeepEqual(t *testing.T) {
+ for _, test := range deepEqualTests {
+ if r := DeepEqual(test.a, test.b); r != test.eq {
+ t.Errorf("DeepEqual(%v, %v) = %v, want %v", test.a, test.b, r, test.eq)
+ }
+ }
+}
+
+func TestTypeof(t *testing.T) {
+ for _, test := range deepEqualTests {
+ v := NewValue(test.a)
+ if v == nil {
+ continue
+ }
+ typ := Typeof(test.a)
+ if typ != v.Type() {
+ t.Errorf("Typeof(%v) = %v, but NewValue(%v).Type() = %v", test.a, typ, test.a, v.Type())
+ }
+ }
+}
+
+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[float64]float64
+}
+
+func TestDeepEqualComplexStruct(t *testing.T) {
+ m := make(map[float64]float64)
+ 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[float64]float64)
+ 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 _, ts := range doNotNil {
+ ty := Typeof(ts)
+ v := MakeZero(ty)
+ if _, 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 _, ts := range doNil {
+ ty := Typeof(ts).(*StructType).Field(0).Type
+ v := MakeZero(ty)
+ if _, 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 != int64(v) {
+ t.Errorf("Key %q: have value %d, want %d", k, 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)
+ }
+
+ mv = NewValue(&m).(*PtrValue).Elem().(*MapValue)
+ mv.Set(nil)
+ if m != nil {
+ t.Errorf("mv.Set(nil) failed")
+ }
+}
+
+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)
+ }
+ }
+
+ // Close
+ c <- 123
+ cv.Close()
+ if cv.Closed() {
+ t.Errorf("closed too soon - 1")
+ }
+ if i := cv.Recv().(*IntValue).Get(); i != 123 {
+ t.Errorf("send 123 then close; Recv %d", i)
+ }
+ if cv.Closed() {
+ t.Errorf("closed too soon - 2")
+ }
+ if i := cv.Recv().(*IntValue).Get(); i != 0 {
+ t.Errorf("after close Recv %d", i)
+ }
+ if !cv.Closed() {
+ t.Errorf("not closed")
+ }
+ }
+
+ // 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")
+ }
+
+ // len/cap
+ cv = MakeChan(Typeof(c).(*ChanType), 10)
+ c = cv.Interface().(chan int)
+ for i := 0; i < 3; i++ {
+ c <- i
+ }
+ if l, m := cv.Len(), cv.Cap(); l != len(c) || m != cap(c) {
+ t.Errorf("Len/Cap = %d/%d want %d/%d", l, m, len(c), cap(c))
+ }
+
+}
+
+// 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].(*UintValue).Get()
+ j := ret[1].(*IntValue).Get()
+ k := ret[2].(*UintValue).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)
+ }
+
+ i = Typeof(&p).Method(0).Func.Call([]Value{NewValue(&p), NewValue(10)})[0].(*IntValue).Get()
+ if i != 250 {
+ t.Errorf("Pointer 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{
+ {struct{}{}, "", nil, 0},
+ {struct{}{}, "foo", nil, 0},
+ {S0{a: 'a'}, "a", []int{0}, 'a'},
+ {S0{}, "d", nil, 0},
+ {S1{S0: S0{a: 'a'}}, "a", []int{1, 0}, 'a'},
+ {S1{b: 'b'}, "b", []int{0}, 'b'},
+ {S1{}, "S0", []int{1}, 0},
+ {S1{S0: S0{c: 'c'}}, "c", []int{1, 2}, 'c'},
+ {S2{a: 'a'}, "a", []int{0}, 'a'},
+ {S2{}, "S1", []int{1}, 0},
+ {S2{S1: &S1{b: 'b'}}, "b", []int{1, 0}, 'b'},
+ {S2{S1: &S1{S0: S0{c: 'c'}}}, "c", []int{1, 1, 2}, 'c'},
+ {S2{}, "d", nil, 0},
+ {S3{}, "S1", nil, 0},
+ {S3{S2: S2{a: 'a'}}, "a", []int{1, 0}, 'a'},
+ {S3{}, "b", nil, 0},
+ {S3{d: 'd'}, "d", []int{2}, 0},
+ {S3{e: 'e'}, "e", []int{3}, 'e'},
+ {S4{a: 'a'}, "a", []int{1}, 'a'},
+ {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)
+ }
+ }
+ }
+}
+
+func TestImportPath(t *testing.T) {
+ if path := Typeof(vector.Vector{}).PkgPath(); path != "libgo_container.vector" {
+ t.Errorf("Typeof(vector.Vector{}).PkgPath() = %q, want \"libgo_container.vector\"", path)
+ }
+}
+
+func TestDotDotDot(t *testing.T) {
+ // Test example from FuncType.DotDotDot documentation.
+ var f func(x int, y ...float64)
+ typ := Typeof(f).(*FuncType)
+ if typ.NumIn() == 2 && typ.In(0) == Typeof(int(0)) {
+ sl, ok := typ.In(1).(*SliceType)
+ if ok {
+ if sl.Elem() == Typeof(0.0) {
+ // ok
+ return
+ }
+ }
+ }
+
+ // Failed
+ t.Errorf("want NumIn() = 2, In(0) = int, In(1) = []float64")
+ s := fmt.Sprintf("have NumIn() = %d", typ.NumIn())
+ for i := 0; i < typ.NumIn(); i++ {
+ s += fmt.Sprintf(", In(%d) = %s", i, typ.In(i))
+ }
+ t.Error(s)
+}
+
+type inner struct {
+ x int
+}
+
+type outer struct {
+ y int
+ inner
+}
+
+func (*inner) m() {}
+func (*outer) m() {}
+
+func TestNestedMethods(t *testing.T) {
+ typ := Typeof((*outer)(nil))
+ if typ.NumMethod() != 1 || typ.Method(0).Func.Get() != NewValue((*outer).m).(*FuncValue).Get() {
+ t.Errorf("Wrong method table for outer: (m=%p)", (*outer).m)
+ for i := 0; i < typ.NumMethod(); i++ {
+ m := typ.Method(i)
+ t.Errorf("\t%d: %s %#x\n", i, m.Name, m.Func.Get())
+ }
+ }
+}
+
+type innerInt struct {
+ x int
+}
+
+type outerInt struct {
+ y int
+ innerInt
+}
+
+func (i *innerInt) m() int {
+ return i.x
+}
+
+func TestEmbeddedMethods(t *testing.T) {
+ typ := Typeof((*outerInt)(nil))
+ if typ.NumMethod() != 1 || typ.Method(0).Func.Get() != NewValue((*outerInt).m).(*FuncValue).Get() {
+ t.Errorf("Wrong method table for outerInt: (m=%p)", (*outerInt).m)
+ for i := 0; i < typ.NumMethod(); i++ {
+ m := typ.Method(i)
+ t.Errorf("\t%d: %s %#x\n", i, m.Name, m.Func.Get())
+ }
+ }
+
+ i := &innerInt{3}
+ if v := NewValue(i).Method(0).Call(nil)[0].(*IntValue).Get(); v != 3 {
+ t.Errorf("i.m() = %d, want 3", v)
+ }
+
+ o := &outerInt{1, innerInt{2}}
+ if v := NewValue(o).Method(0).Call(nil)[0].(*IntValue).Get(); v != 2 {
+ t.Errorf("i.m() = %d, want 2", v)
+ }
+
+ f := (*outerInt).m
+ if v := f(o); v != 2 {
+ t.Errorf("f(o) = %d, want 2", v)
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-10 00:34:26 +0000