1// Copyright 2009 The Go Authors. All rights reserved.
2// Use of this source code ds governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5package pflag
6
7import (
8	"fmt"
9	"strings"
10	"testing"
11	"time"
12)
13
14func setUpDSFlagSet(dsp *[]time.Duration) *FlagSet {
15	f := NewFlagSet("test", ContinueOnError)
16	f.DurationSliceVar(dsp, "ds", []time.Duration{}, "Command separated list!")
17	return f
18}
19
20func setUpDSFlagSetWithDefault(dsp *[]time.Duration) *FlagSet {
21	f := NewFlagSet("test", ContinueOnError)
22	f.DurationSliceVar(dsp, "ds", []time.Duration{0, 1}, "Command separated list!")
23	return f
24}
25
26func TestEmptyDS(t *testing.T) {
27	var ds []time.Duration
28	f := setUpDSFlagSet(&ds)
29	err := f.Parse([]string{})
30	if err != nil {
31		t.Fatal("expected no error; got", err)
32	}
33
34	getDS, err := f.GetDurationSlice("ds")
35	if err != nil {
36		t.Fatal("got an error from GetDurationSlice():", err)
37	}
38	if len(getDS) != 0 {
39		t.Fatalf("got ds %v with len=%d but expected length=0", getDS, len(getDS))
40	}
41}
42
43func TestDS(t *testing.T) {
44	var ds []time.Duration
45	f := setUpDSFlagSet(&ds)
46
47	vals := []string{"1ns", "2ms", "3m", "4h"}
48	arg := fmt.Sprintf("--ds=%s", strings.Join(vals, ","))
49	err := f.Parse([]string{arg})
50	if err != nil {
51		t.Fatal("expected no error; got", err)
52	}
53	for i, v := range ds {
54		d, err := time.ParseDuration(vals[i])
55		if err != nil {
56			t.Fatalf("got error: %v", err)
57		}
58		if d != v {
59			t.Fatalf("expected ds[%d] to be %s but got: %d", i, vals[i], v)
60		}
61	}
62	getDS, err := f.GetDurationSlice("ds")
63	if err != nil {
64		t.Fatalf("got error: %v", err)
65	}
66	for i, v := range getDS {
67		d, err := time.ParseDuration(vals[i])
68		if err != nil {
69			t.Fatalf("got error: %v", err)
70		}
71		if d != v {
72			t.Fatalf("expected ds[%d] to be %s but got: %d from GetDurationSlice", i, vals[i], v)
73		}
74	}
75}
76
77func TestDSDefault(t *testing.T) {
78	var ds []time.Duration
79	f := setUpDSFlagSetWithDefault(&ds)
80
81	vals := []string{"0s", "1ns"}
82
83	err := f.Parse([]string{})
84	if err != nil {
85		t.Fatal("expected no error; got", err)
86	}
87	for i, v := range ds {
88		d, err := time.ParseDuration(vals[i])
89		if err != nil {
90			t.Fatalf("got error: %v", err)
91		}
92		if d != v {
93			t.Fatalf("expected ds[%d] to be %d but got: %d", i, d, v)
94		}
95	}
96
97	getDS, err := f.GetDurationSlice("ds")
98	if err != nil {
99		t.Fatal("got an error from GetDurationSlice():", err)
100	}
101	for i, v := range getDS {
102		d, err := time.ParseDuration(vals[i])
103		if err != nil {
104			t.Fatal("got an error from GetDurationSlice():", err)
105		}
106		if d != v {
107			t.Fatalf("expected ds[%d] to be %d from GetDurationSlice but got: %d", i, d, v)
108		}
109	}
110}
111
112func TestDSWithDefault(t *testing.T) {
113	var ds []time.Duration
114	f := setUpDSFlagSetWithDefault(&ds)
115
116	vals := []string{"1ns", "2ns"}
117	arg := fmt.Sprintf("--ds=%s", strings.Join(vals, ","))
118	err := f.Parse([]string{arg})
119	if err != nil {
120		t.Fatal("expected no error; got", err)
121	}
122	for i, v := range ds {
123		d, err := time.ParseDuration(vals[i])
124		if err != nil {
125			t.Fatalf("got error: %v", err)
126		}
127		if d != v {
128			t.Fatalf("expected ds[%d] to be %d but got: %d", i, d, v)
129		}
130	}
131
132	getDS, err := f.GetDurationSlice("ds")
133	if err != nil {
134		t.Fatal("got an error from GetDurationSlice():", err)
135	}
136	for i, v := range getDS {
137		d, err := time.ParseDuration(vals[i])
138		if err != nil {
139			t.Fatalf("got error: %v", err)
140		}
141		if d != v {
142			t.Fatalf("expected ds[%d] to be %d from GetDurationSlice but got: %d", i, d, v)
143		}
144	}
145}
146
147func TestDSAsSliceValue(t *testing.T) {
148	var ds []time.Duration
149	f := setUpDSFlagSet(&ds)
150
151	in := []string{"1ns", "2ns"}
152	argfmt := "--ds=%s"
153	arg1 := fmt.Sprintf(argfmt, in[0])
154	arg2 := fmt.Sprintf(argfmt, in[1])
155	err := f.Parse([]string{arg1, arg2})
156	if err != nil {
157		t.Fatal("expected no error; got", err)
158	}
159
160	f.VisitAll(func(f *Flag) {
161		if val, ok := f.Value.(SliceValue); ok {
162			_ = val.Replace([]string{"3ns"})
163		}
164	})
165	if len(ds) != 1 || ds[0] != time.Duration(3) {
166		t.Fatalf("Expected ss to be overwritten with '3ns', but got: %v", ds)
167	}
168}
169
170func TestDSCalledTwice(t *testing.T) {
171	var ds []time.Duration
172	f := setUpDSFlagSet(&ds)
173
174	in := []string{"1ns,2ns", "3ns"}
175	expected := []time.Duration{1, 2, 3}
176	argfmt := "--ds=%s"
177	arg1 := fmt.Sprintf(argfmt, in[0])
178	arg2 := fmt.Sprintf(argfmt, in[1])
179	err := f.Parse([]string{arg1, arg2})
180	if err != nil {
181		t.Fatal("expected no error; got", err)
182	}
183	for i, v := range ds {
184		if expected[i] != v {
185			t.Fatalf("expected ds[%d] to be %d but got: %d", i, expected[i], v)
186		}
187	}
188}
189