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// Copyright 2016 Google LLC
//
// 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 (
"fmt"
"strings"
"testing"
)
type S struct {
X int
Y bool
z *string
}
func TestSprint(t *testing.T) {
Indent = "~"
i := 17
for _, test := range []struct {
value interface{}
want string
}{
// primitives and pointer
{nil, "nil"},
{3, "3"},
{9.8, "9.8"},
{true, "true"},
{"foo", `"foo"`},
{&i, "&17"},
// array and slice
{[3]int{1, 2, 3}, "[3]int{\n~1,\n~2,\n~3,\n}"},
{[]int{1, 2, 3}, "[]int{\n~1,\n~2,\n~3,\n}"},
{[]int{}, "[]int{}"},
{[]string{"foo"}, "[]string{\n~\"foo\",\n}"},
// map
{map[int]bool{}, "map[int]bool{}"},
{map[int]bool{1: true, 2: false, 3: true},
"map[int]bool{\n~1: true,\n~3: true,\n}"},
// struct
{S{}, "pretty.S{\n}"},
{S{3, true, ptr("foo")},
"pretty.S{\n~X: 3,\n~Y: true,\n~z: &\"foo\",\n}"},
// interface
{[]interface{}{&i}, "[]interface {}{\n~&17,\n}"},
// nesting
{[]S{{1, false, ptr("a")}, {2, true, ptr("b")}},
`[]pretty.S{
~pretty.S{
~~X: 1,
~~z: &"a",
~},
~pretty.S{
~~X: 2,
~~Y: true,
~~z: &"b",
~},
}`},
} {
got := fmt.Sprintf("%v", Value(test.value))
if got != test.want {
t.Errorf("%v: got:\n%q\nwant:\n%q", test.value, got, test.want)
}
}
}
func TestWithDefaults(t *testing.T) {
Indent = "~"
for _, test := range []struct {
value interface{}
want string
}{
{map[int]bool{1: true, 2: false, 3: true},
"map[int]bool{\n~1: true,\n~2: false,\n~3: true,\n}"},
{S{}, "pretty.S{\n~X: 0,\n~Y: false,\n~z: nil,\n}"},
} {
got := fmt.Sprintf("%+v", Value(test.value))
if got != test.want {
t.Errorf("%v: got:\n%q\nwant:\n%q", test.value, got, test.want)
}
}
}
func TestBadVerb(t *testing.T) {
got := fmt.Sprintf("%d", Value(8))
want := "%!d("
if !strings.HasPrefix(got, want) {
t.Errorf("got %q, want prefix %q", got, want)
}
}
func ptr(s string) *string { return &s }
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