File: reflect_test.go

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// Copyright 2013 Google Inc.  All rights reserved.
//
// 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 pretty

import (
	"reflect"
	"testing"
	"time"
)

func TestVal2nodeDefault(t *testing.T) {
	tests := []struct {
		desc string
		raw  interface{}
		want node
	}{
		{
			desc: "nil",
			raw:  nil,
			want: rawVal("nil"),
		},
		{
			desc: "nil ptr",
			raw:  (*int)(nil),
			want: rawVal("nil"),
		},
		{
			desc: "nil slice",
			raw:  []string(nil),
			want: list{},
		},
		{
			desc: "nil map",
			raw:  map[string]string(nil),
			want: keyvals{},
		},
		{
			desc: "string",
			raw:  "zaphod",
			want: stringVal("zaphod"),
		},
		{
			desc: "slice",
			raw:  []string{"a", "b"},
			want: list{stringVal("a"), stringVal("b")},
		},
		{
			desc: "map",
			raw: map[string]string{
				"zaphod": "beeblebrox",
				"ford":   "prefect",
			},
			want: keyvals{
				{"ford", stringVal("prefect")},
				{"zaphod", stringVal("beeblebrox")},
			},
		},
		{
			desc: "map of [2]int",
			raw: map[[2]int]string{
				[2]int{-1, 2}: "school",
				[2]int{0, 0}:  "origin",
				[2]int{1, 3}:  "home",
			},
			want: keyvals{
				{"[-1,2]", stringVal("school")},
				{"[0,0]", stringVal("origin")},
				{"[1,3]", stringVal("home")},
			},
		},
		{
			desc: "struct",
			raw:  struct{ Zaphod, Ford string }{"beeblebrox", "prefect"},
			want: keyvals{
				{"Zaphod", stringVal("beeblebrox")},
				{"Ford", stringVal("prefect")},
			},
		},
		{
			desc: "int",
			raw:  3,
			want: rawVal("3"),
		},
	}

	for _, test := range tests {
		if got, want := DefaultConfig.val2node(reflect.ValueOf(test.raw)), test.want; !reflect.DeepEqual(got, want) {
			t.Errorf("%s: got %#v, want %#v", test.desc, got, want)
		}
	}
}

func TestVal2node(t *testing.T) {
	tests := []struct {
		desc string
		raw  interface{}
		cfg  *Config
		want node
	}{
		{
			desc: "struct default",
			raw:  struct{ Zaphod, Ford, foo string }{"beeblebrox", "prefect", "BAD"},
			cfg:  DefaultConfig,
			want: keyvals{
				{"Zaphod", stringVal("beeblebrox")},
				{"Ford", stringVal("prefect")},
			},
		},
		{
			desc: "struct w/ IncludeUnexported",
			raw:  struct{ Zaphod, Ford, foo string }{"beeblebrox", "prefect", "GOOD"},
			cfg: &Config{
				IncludeUnexported: true,
			},
			want: keyvals{
				{"Zaphod", stringVal("beeblebrox")},
				{"Ford", stringVal("prefect")},
				{"foo", stringVal("GOOD")},
			},
		},
		{
			desc: "time default",
			raw:  struct{ Date time.Time }{time.Unix(1234567890, 0).UTC()},
			cfg:  DefaultConfig,
			want: keyvals{
				{"Date", keyvals{}},
			},
		},
		{
			desc: "time w/ PrintTextMarshalers",
			raw:  struct{ Date time.Time }{time.Unix(1234567890, 0).UTC()},
			cfg: &Config{
				PrintTextMarshalers: true,
			},
			want: keyvals{
				{"Date", stringVal("2009-02-13T23:31:30Z")},
			},
		},
		{
			desc: "time w/ PrintStringers",
			raw:  struct{ Date time.Time }{time.Unix(1234567890, 0).UTC()},
			cfg: &Config{
				PrintStringers: true,
			},
			want: keyvals{
				{"Date", stringVal("2009-02-13 23:31:30 +0000 UTC")},
			},
		},
	}

	for _, test := range tests {
		if got, want := test.cfg.val2node(reflect.ValueOf(test.raw)), test.want; !reflect.DeepEqual(got, want) {
			t.Errorf("%s: got %#v, want %#v", test.desc, got, want)
		}
	}
}