internal/core/convert/go_test.go - cue - Git at Google

 // Copyright 2019 CUE Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.

 package convert_test

 import (
 	"math/big"
 	"reflect"
 	"testing"
 	"time"

 	"github.com/cockroachdb/apd/v2"
 	"github.com/google/go-cmp/cmp"

 	"cuelang.org/go/cue/errors"
 	"cuelang.org/go/internal/core/adt"
 	"cuelang.org/go/internal/core/convert"
 	"cuelang.org/go/internal/core/debug"
 	"cuelang.org/go/internal/core/runtime"
 )

 func mkBigInt(a int64) (v apd.Decimal) { v.SetInt64(a); return }

 func TestConvert(t *testing.T) {
 	i34 := big.NewInt(34)
 	d35 := mkBigInt(35)
 	n36 := mkBigInt(-36)
 	f37 := big.NewFloat(37.0000)
 	testCases := []struct {
 		goVal interface{}
 		want  string
 	}{{
 		nil, "(_){ _ }",
 	}, {
 		true, "(bool){ true }",
 	}, {
 		false, "(bool){ false }",
 	}, {
 		errors.New("oh noes"), "(_|_){\n  // [eval] oh noes\n}",
 	}, {
 		"foo", `(string){ "foo" }`,
 	}, {
 		"\x80", "(_|_){\n  // [eval] cannot convert result to string: invalid UTF-8\n}",
 	}, {
 		3, "(int){ 3 }",
 	}, {
 		uint(3), "(int){ 3 }",
 	}, {
 		uint8(3), "(int){ 3 }",
 	}, {
 		uint16(3), "(int){ 3 }",
 	}, {
 		uint32(3), "(int){ 3 }",
 	}, {
 		uint64(3), "(int){ 3 }",
 	}, {
 		int8(-3), "(int){ -3 }",
 	}, {
 		int16(-3), "(int){ -3 }",
 	}, {
 		int32(-3), "(int){ -3 }",
 	}, {
 		int64(-3), "(int){ -3 }",
 	}, {
 		float64(3), "(float){ 3 }",
 	}, {
 		float64(3.1), "(float){ 3.1 }",
 	}, {
 		float32(3.1), "(float){ 3.1 }",
 	}, {
 		uintptr(3), "(int){ 3 }",
 	}, {
 		&i34, "(int){ 34 }",
 	}, {
 		&f37, "(float){ 37 }",
 	}, {
 		&d35, "(int){ 35 }",
 	}, {
 		&n36, "(int){ -36 }",
 	}, {
 		[]int{1, 2, 3, 4}, `(#list){
   0: (int){ 1 }
   1: (int){ 2 }
   2: (int){ 3 }
   3: (int){ 4 }
 }`,
 	}, {
 		struct {
 			A int
 			B *int
 		}{3, nil},
 		"(struct){\n  A: (int){ 3 }\n}",
 	}, {
 		[]interface{}{}, "(#list){\n}",
 	}, {
 		[]interface{}{nil}, "(#list){\n  0: (_){ _ }\n}",
 	}, {
 		map[string]interface{}{"a": 1, "x": nil}, `(struct){
   a: (int){ 1 }
   x: (_){ _ }
 }`,
 	}, {
 		map[string][]int{
 			"a": {1},
 			"b": {3, 4},
 		}, `(struct){
   a: (#list){
     0: (int){ 1 }
   }
   b: (#list){
     0: (int){ 3 }
     1: (int){ 4 }
   }
 }`,
 	}, {
 		map[bool]int{}, "(_|_){\n  // [eval] unsupported Go type for map key (bool)\n}",
 	}, {
 		map[struct{}]int{{}: 2}, "(_|_){\n  // [eval] unsupported Go type for map key (struct {})\n}",
 	}, {
 		map[int]int{1: 2}, `(struct){
   "1": (int){ 2 }
 }`,
 	}, {
 		struct {
 			a int
 			b int
 		}{3, 4},
 		"(struct){\n}",
 	}, {
 		struct {
 			A int
 			B int `json:"-"`
 			C int `json:",omitempty"`
 		}{3, 4, 0},
 		`(struct){
   A: (int){ 3 }
 }`,
 	}, {
 		struct {
 			A int
 			B int
 		}{3, 4},
 		`(struct){
   A: (int){ 3 }
   B: (int){ 4 }
 }`,
 	}, {
 		struct {
 			A int `json:"a"`
 			B int `yaml:"b"`
 		}{3, 4},
 		`(struct){
   a: (int){ 3 }
   b: (int){ 4 }
 }`,
 	}, {
 		struct {
 			A int `json:"" yaml:"" protobuf:"aa"`
 			B int `yaml:"cc" json:"bb" protobuf:"aa"`
 		}{3, 4},
 		`(struct){
   aa: (int){ 3 }
   bb: (int){ 4 }
 }`,
 	}, {
 		&struct{ A int }{3}, `(struct){
   A: (int){ 3 }
 }`,
 	}, {
 		(*struct{ A int })(nil), "(_){ _ }",
 	}, {
 		reflect.ValueOf(3), "(int){ 3 }",
 	}, {
 		time.Date(2019, 4, 1, 0, 0, 0, 0, time.UTC), `(string){ "2019-04-01T00:00:00Z" }`,
 	}, {
 		func() interface{} {
 			type T struct {
 				B int
 			}
 			type S struct {
 				A string
 				T
 			}
 			return S{}
 		}(),
 		`(struct){
   A: (string){ "" }
   B: (int){ 0 }
 }`,
 	}}
 	r := runtime.New()
 	for _, tc := range testCases {
 		ctx := adt.NewContext(r, &adt.Vertex{})
 		t.Run("", func(t *testing.T) {
 			v := convert.GoValueToValue(ctx, tc.goVal, true)
 			n, ok := v.(*adt.Vertex)
 			if !ok {
 				n = &adt.Vertex{BaseValue: v}
 			}
 			got := debug.NodeString(ctx, n, nil)
 			if got != tc.want {
 				t.Error(cmp.Diff(got, tc.want))
 			}
 		})
 	}
 }

 func TestX(t *testing.T) {
 	t.Skip()

 	x := []string{}

 	r := runtime.New()
 	ctx := adt.NewContext(r, &adt.Vertex{})

 	v := convert.GoValueToValue(ctx, x, false)
 	// if err != nil {
 	// 	t.Fatal(err)
 	// }
 	got := debug.NodeString(ctx, v, nil)
 	t.Error(got)
 }

 func TestConvertType(t *testing.T) {
 	testCases := []struct {
 		goTyp interface{}
 		want  string
 	}{{
 		struct {
 			A int      `cue:">=0&<100"`
 			B *big.Int `cue:">=0"`
 			C *big.Int
 			D big.Int
 			F *big.Float
 		}{},
 		// TODO: indicate that B is explicitly an int only.
 		`{
   A: (((int & >=-9223372036854775808) & <=9223372036854775807) & (>=0 & <100))
   B: (int & >=0)
   C?: int
   D: int
   F?: number
 }`,
 	}, {
 		&struct {
 			A int16 `cue:">=0&<100"`
 			B error `json:"b,"`
 			C string
 			D bool
 			F float64
 			L []byte
 			T time.Time
 			G func()
 		}{},
 		`(*null|{
   A: (((int & >=-32768) & <=32767) & (>=0 & <100))
   b: null
   C: string
   D: bool
   F: number
   L?: (*null|bytes)
   T: _
 })`,
 	}, {
 		struct {
 			A int `cue:"<"` // invalid
 		}{},
 		"_|_(invalid tag \"<\" for field \"A\": expected operand, found 'EOF' (and 1 more errors))",
 	}, {
 		struct {
 			A int `json:"-"` // skip
 			D *apd.Decimal
 			P ***apd.Decimal
 			I interface{ Foo() }
 			T string `cue:""` // allowed
 			h int
 		}{},
 		`{
   D?: number
   P?: (*null|number)
   I?: _
   T: (string & _)
 }`,
 	}, {
 		struct {
 			A int8 `cue:"C-B"`
 			B int8 `cue:"C-A,opt"`
 			C int8 `cue:"A+B"`
 		}{},
 		// TODO: should B be marked as optional?
 		`{
   A: (((int & >=-128) & <=127) & (〈0;C〉 - 〈0;B〉))
   B?: (((int & >=-128) & <=127) & (〈0;C〉 - 〈0;A〉))
   C: (((int & >=-128) & <=127) & (〈0;A〉 + 〈0;B〉))
 }`,
 	}, {
 		[]string{},
 		`(*null|[
   ...string,
 ])`,
 	}, {
 		[4]string{},
 		`(4 * [
   string,
 ])`,
 	}, {
 		[]func(){},
 		"_|_(unsupported Go type (func()))",
 	}, {
 		map[string]struct{ A map[string]uint }{},
 		`(*null|{
   [string]: {
     A?: (*null|{
       [string]: ((int & >=0) & <=18446744073709551615)
     })
   }
 })`,
 	}, {
 		map[float32]int{},
 		`_|_(unsupported Go type for map key (float32))`,
 	}, {
 		map[int]map[float32]int{},
 		`_|_(unsupported Go type for map key (float32))`,
 	}, {
 		map[int]func(){},
 		`_|_(unsupported Go type (func()))`,
 	}, {
 		time.Now, // a function
 		"_|_(unsupported Go type (func() time.Time))",
 	}}

 	r := runtime.New()

 	for _, tc := range testCases {
 		t.Run("", func(t *testing.T) {
 			ctx := adt.NewContext(r, &adt.Vertex{})
 			v, _ := convert.GoTypeToExpr(ctx, tc.goTyp)
 			got := debug.NodeString(ctx, v, nil)
 			if got != tc.want {
 				t.Errorf("\n got %q;\nwant %q", got, tc.want)
 			}
 		})
 	}
 }
	// Copyright 2019 CUE Authors
	//
	// Licensed under the Apache License, Version 2.0 (the "License");
	// you may not use this file except in compliance with the License.
	// You may obtain a copy of the License at
	//
	// http://www.apache.org/licenses/LICENSE-2.0
	//
	// Unless required by applicable law or agreed to in writing, software
	// distributed under the License is distributed on an "AS IS" BASIS,
	// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	// See the License for the specific language governing permissions and
	// limitations under the License.

	package convert_test

	import (
	"math/big"
	"reflect"
	"testing"
	"time"

	"github.com/cockroachdb/apd/v2"
	"github.com/google/go-cmp/cmp"

	"cuelang.org/go/cue/errors"
	"cuelang.org/go/internal/core/adt"
	"cuelang.org/go/internal/core/convert"
	"cuelang.org/go/internal/core/debug"
	"cuelang.org/go/internal/core/runtime"
	)

	func mkBigInt(a int64) (v apd.Decimal) { v.SetInt64(a); return }

	func TestConvert(t *testing.T) {
	i34 := big.NewInt(34)
	d35 := mkBigInt(35)
	n36 := mkBigInt(-36)
	f37 := big.NewFloat(37.0000)
	testCases := []struct {
	goVal interface{}
	want string
	}{{
	nil, "(_){ _ }",
	}, {
	true, "(bool){ true }",
	}, {
	false, "(bool){ false }",
	}, {
	errors.New("oh noes"), "(_\|_){\n // [eval] oh noes\n}",
	}, {
	"foo", `(string){ "foo" }`,
	}, {
	"\x80", "(_\|_){\n // [eval] cannot convert result to string: invalid UTF-8\n}",
	}, {
	3, "(int){ 3 }",
	}, {
	uint(3), "(int){ 3 }",
	}, {
	uint8(3), "(int){ 3 }",
	}, {
	uint16(3), "(int){ 3 }",
	}, {
	uint32(3), "(int){ 3 }",
	}, {
	uint64(3), "(int){ 3 }",
	}, {
	int8(-3), "(int){ -3 }",
	}, {
	int16(-3), "(int){ -3 }",
	}, {
	int32(-3), "(int){ -3 }",
	}, {
	int64(-3), "(int){ -3 }",
	}, {
	float64(3), "(float){ 3 }",
	}, {
	float64(3.1), "(float){ 3.1 }",
	}, {
	float32(3.1), "(float){ 3.1 }",
	}, {
	uintptr(3), "(int){ 3 }",
	}, {
	&i34, "(int){ 34 }",
	}, {
	&f37, "(float){ 37 }",
	}, {
	&d35, "(int){ 35 }",
	}, {
	&n36, "(int){ -36 }",
	}, {
	[]int{1, 2, 3, 4}, `(#list){
	0: (int){ 1 }
	1: (int){ 2 }
	2: (int){ 3 }
	3: (int){ 4 }
	}`,
	}, {
	struct {
	A int
	B *int
	}{3, nil},
	"(struct){\n A: (int){ 3 }\n}",
	}, {
	[]interface{}{}, "(#list){\n}",
	}, {
	[]interface{}{nil}, "(#list){\n 0: (_){ _ }\n}",
	}, {
	map[string]interface{}{"a": 1, "x": nil}, `(struct){
	a: (int){ 1 }
	x: (_){ _ }
	}`,
	}, {
	map[string][]int{
	"a": {1},
	"b": {3, 4},
	}, `(struct){
	a: (#list){
	0: (int){ 1 }
	}
	b: (#list){
	0: (int){ 3 }
	1: (int){ 4 }
	}
	}`,
	}, {
	map[bool]int{}, "(_\|_){\n // [eval] unsupported Go type for map key (bool)\n}",
	}, {
	map[struct{}]int{{}: 2}, "(_\|_){\n // [eval] unsupported Go type for map key (struct {})\n}",
	}, {
	map[int]int{1: 2}, `(struct){
	"1": (int){ 2 }
	}`,
	}, {
	struct {
	a int
	b int
	}{3, 4},
	"(struct){\n}",
	}, {
	struct {
	A int
	B int `json:"-"`
	C int `json:",omitempty"`
	}{3, 4, 0},
	`(struct){
	A: (int){ 3 }
	}`,
	}, {
	struct {
	A int
	B int
	}{3, 4},
	`(struct){
	A: (int){ 3 }
	B: (int){ 4 }
	}`,
	}, {
	struct {
	A int `json:"a"`
	B int `yaml:"b"`
	}{3, 4},
	`(struct){
	a: (int){ 3 }
	b: (int){ 4 }
	}`,
	}, {
	struct {
	A int `json:"" yaml:"" protobuf:"aa"`
	B int `yaml:"cc" json:"bb" protobuf:"aa"`
	}{3, 4},
	`(struct){
	aa: (int){ 3 }
	bb: (int){ 4 }
	}`,
	}, {
	&struct{ A int }{3}, `(struct){
	A: (int){ 3 }
	}`,
	}, {
	(*struct{ A int })(nil), "(_){ _ }",
	}, {
	reflect.ValueOf(3), "(int){ 3 }",
	}, {
	time.Date(2019, 4, 1, 0, 0, 0, 0, time.UTC), `(string){ "2019-04-01T00:00:00Z" }`,
	}, {
	func() interface{} {
	type T struct {
	B int
	}
	type S struct {
	A string
	T
	}
	return S{}
	}(),
	`(struct){
	A: (string){ "" }
	B: (int){ 0 }
	}`,
	}}
	r := runtime.New()
	for _, tc := range testCases {
	ctx := adt.NewContext(r, &adt.Vertex{})
	t.Run("", func(t *testing.T) {
	v := convert.GoValueToValue(ctx, tc.goVal, true)
	n, ok := v.(*adt.Vertex)
	if !ok {
	n = &adt.Vertex{BaseValue: v}
	}
	got := debug.NodeString(ctx, n, nil)
	if got != tc.want {
	t.Error(cmp.Diff(got, tc.want))
	}
	})
	}
	}

	func TestX(t *testing.T) {
	t.Skip()

	x := []string{}

	r := runtime.New()
	ctx := adt.NewContext(r, &adt.Vertex{})

	v := convert.GoValueToValue(ctx, x, false)
	// if err != nil {
	// t.Fatal(err)
	// }
	got := debug.NodeString(ctx, v, nil)
	t.Error(got)
	}

	func TestConvertType(t *testing.T) {
	testCases := []struct {
	goTyp interface{}
	want string
	}{{
	struct {
	A int `cue:">=0&<100"`
	B *big.Int `cue:">=0"`
	C *big.Int
	D big.Int
	F *big.Float
	}{},
	// TODO: indicate that B is explicitly an int only.
	`{
	A: (((int & >=-9223372036854775808) & <=9223372036854775807) & (>=0 & <100))
	B: (int & >=0)
	C?: int
	D: int
	F?: number
	}`,
	}, {
	&struct {
	A int16 `cue:">=0&<100"`
	B error `json:"b,"`
	C string
	D bool
	F float64
	L []byte
	T time.Time
	G func()
	}{},
	`(*null\|{
	A: (((int & >=-32768) & <=32767) & (>=0 & <100))
	b: null
	C: string
	D: bool
	F: number
	L?: (*null\|bytes)
	T: _
	})`,
	}, {
	struct {
	A int `cue:"<"` // invalid
	}{},
	"_\|_(invalid tag \"<\" for field \"A\": expected operand, found 'EOF' (and 1 more errors))",
	}, {
	struct {
	A int `json:"-"` // skip
	D *apd.Decimal
	P ***apd.Decimal
	I interface{ Foo() }
	T string `cue:""` // allowed
	h int
	}{},
	`{
	D?: number
	P?: (*null\|number)
	I?: _
	T: (string & _)
	}`,
	}, {
	struct {
	A int8 `cue:"C-B"`
	B int8 `cue:"C-A,opt"`
	C int8 `cue:"A+B"`
	}{},
	// TODO: should B be marked as optional?
	`{
	A: (((int & >=-128) & <=127) & (〈0;C〉 - 〈0;B〉))
	B?: (((int & >=-128) & <=127) & (〈0;C〉 - 〈0;A〉))
	C: (((int & >=-128) & <=127) & (〈0;A〉 + 〈0;B〉))
	}`,
	}, {
	[]string{},
	`(*null\|[
	...string,
	])`,
	}, {
	[4]string{},
	`(4 * [
	string,
	])`,
	}, {
	[]func(){},
	"_\|_(unsupported Go type (func()))",
	}, {
	map[string]struct{ A map[string]uint }{},
	`(*null\|{
	[string]: {
	A?: (*null\|{
	[string]: ((int & >=0) & <=18446744073709551615)
	})
	}
	})`,
	}, {
	map[float32]int{},
	`_\|_(unsupported Go type for map key (float32))`,
	}, {
	map[int]map[float32]int{},
	`_\|_(unsupported Go type for map key (float32))`,
	}, {
	map[int]func(){},
	`_\|_(unsupported Go type (func()))`,
	}, {
	time.Now, // a function
	"_\|_(unsupported Go type (func() time.Time))",
	}}

	r := runtime.New()

	for _, tc := range testCases {
	t.Run("", func(t *testing.T) {
	ctx := adt.NewContext(r, &adt.Vertex{})
	v, _ := convert.GoTypeToExpr(ctx, tc.goTyp)
	got := debug.NodeString(ctx, v, nil)
	if got != tc.want {
	t.Errorf("\n got %q;\nwant %q", got, tc.want)
	}
	})
	}
	}