106 lines
2.4 KiB
Go
106 lines
2.4 KiB
Go
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// Copyright 2016 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package pretty
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import (
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"fmt"
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"strings"
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"testing"
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)
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type S struct {
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X int
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Y bool
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z *string
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}
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func TestSprint(t *testing.T) {
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Indent = "~"
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i := 17
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for _, test := range []struct {
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value interface{}
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want string
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}{
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// primitives and pointer
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{nil, "nil"},
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{3, "3"},
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{9.8, "9.8"},
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{true, "true"},
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{"foo", `"foo"`},
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{&i, "&17"},
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// array and slice
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{[3]int{1, 2, 3}, "[3]int{\n~1,\n~2,\n~3,\n}"},
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{[]int{1, 2, 3}, "[]int{\n~1,\n~2,\n~3,\n}"},
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{[]int{}, "[]int{}"},
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{[]string{"foo"}, "[]string{\n~\"foo\",\n}"},
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// map
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{map[int]bool{}, "map[int]bool{}"},
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{map[int]bool{1: true, 2: false, 3: true},
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"map[int]bool{\n~1: true,\n~3: true,\n}"},
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// struct
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{S{}, "pretty.S{\n}"},
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{S{3, true, ptr("foo")},
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"pretty.S{\n~X: 3,\n~Y: true,\n~z: &\"foo\",\n}"},
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// interface
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{[]interface{}{&i}, "[]interface {}{\n~&17,\n}"},
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// nesting
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{[]S{{1, false, ptr("a")}, {2, true, ptr("b")}},
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`[]pretty.S{
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~pretty.S{
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~~X: 1,
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~~z: &"a",
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~},
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~pretty.S{
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~~X: 2,
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~~Y: true,
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~~z: &"b",
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~},
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}`},
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} {
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got := fmt.Sprintf("%v", Value(test.value))
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if got != test.want {
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t.Errorf("%v: got:\n%q\nwant:\n%q", test.value, got, test.want)
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}
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}
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}
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func TestWithDefaults(t *testing.T) {
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Indent = "~"
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for _, test := range []struct {
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value interface{}
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want string
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}{
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{map[int]bool{1: true, 2: false, 3: true},
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"map[int]bool{\n~1: true,\n~2: false,\n~3: true,\n}"},
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{S{}, "pretty.S{\n~X: 0,\n~Y: false,\n~z: nil,\n}"},
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} {
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got := fmt.Sprintf("%+v", Value(test.value))
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if got != test.want {
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t.Errorf("%v: got:\n%q\nwant:\n%q", test.value, got, test.want)
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}
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}
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}
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func TestBadVerb(t *testing.T) {
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got := fmt.Sprintf("%d", Value(8))
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want := "%!d("
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if !strings.HasPrefix(got, want) {
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t.Errorf("got %q, want prefix %q", got, want)
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}
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}
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func ptr(s string) *string { return &s }
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