1// Copyright 2009 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5package pflag
6
7import (
8	"fmt"
9	"strconv"
10	"strings"
11	"testing"
12)
13
14func setUpISFlagSet(isp *[]int) *FlagSet {
15	f := NewFlagSet("test", ContinueOnError)
16	f.IntSliceVar(isp, "is", []int{}, "Command separated list!")
17	return f
18}
19
20func setUpISFlagSetWithDefault(isp *[]int) *FlagSet {
21	f := NewFlagSet("test", ContinueOnError)
22	f.IntSliceVar(isp, "is", []int{0, 1}, "Command separated list!")
23	return f
24}
25
26func TestEmptyIS(t *testing.T) {
27	var is []int
28	f := setUpISFlagSet(&is)
29	err := f.Parse([]string{})
30	if err != nil {
31		t.Fatal("expected no error; got", err)
32	}
33
34	getIS, err := f.GetIntSlice("is")
35	if err != nil {
36		t.Fatal("got an error from GetIntSlice():", err)
37	}
38	if len(getIS) != 0 {
39		t.Fatalf("got is %v with len=%d but expected length=0", getIS, len(getIS))
40	}
41}
42
43func TestIS(t *testing.T) {
44	var is []int
45	f := setUpISFlagSet(&is)
46
47	vals := []string{"1", "2", "4", "3"}
48	arg := fmt.Sprintf("--is=%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 is {
54		d, err := strconv.Atoi(vals[i])
55		if err != nil {
56			t.Fatalf("got error: %v", err)
57		}
58		if d != v {
59			t.Fatalf("expected is[%d] to be %s but got: %d", i, vals[i], v)
60		}
61	}
62	getIS, err := f.GetIntSlice("is")
63	if err != nil {
64		t.Fatalf("got error: %v", err)
65	}
66	for i, v := range getIS {
67		d, err := strconv.Atoi(vals[i])
68		if err != nil {
69			t.Fatalf("got error: %v", err)
70		}
71		if d != v {
72			t.Fatalf("expected is[%d] to be %s but got: %d from GetIntSlice", i, vals[i], v)
73		}
74	}
75}
76
77func TestISDefault(t *testing.T) {
78	var is []int
79	f := setUpISFlagSetWithDefault(&is)
80
81	vals := []string{"0", "1"}
82
83	err := f.Parse([]string{})
84	if err != nil {
85		t.Fatal("expected no error; got", err)
86	}
87	for i, v := range is {
88		d, err := strconv.Atoi(vals[i])
89		if err != nil {
90			t.Fatalf("got error: %v", err)
91		}
92		if d != v {
93			t.Fatalf("expected is[%d] to be %d but got: %d", i, d, v)
94		}
95	}
96
97	getIS, err := f.GetIntSlice("is")
98	if err != nil {
99		t.Fatal("got an error from GetIntSlice():", err)
100	}
101	for i, v := range getIS {
102		d, err := strconv.Atoi(vals[i])
103		if err != nil {
104			t.Fatal("got an error from GetIntSlice():", err)
105		}
106		if d != v {
107			t.Fatalf("expected is[%d] to be %d from GetIntSlice but got: %d", i, d, v)
108		}
109	}
110}
111
112func TestISWithDefault(t *testing.T) {
113	var is []int
114	f := setUpISFlagSetWithDefault(&is)
115
116	vals := []string{"1", "2"}
117	arg := fmt.Sprintf("--is=%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 is {
123		d, err := strconv.Atoi(vals[i])
124		if err != nil {
125			t.Fatalf("got error: %v", err)
126		}
127		if d != v {
128			t.Fatalf("expected is[%d] to be %d but got: %d", i, d, v)
129		}
130	}
131
132	getIS, err := f.GetIntSlice("is")
133	if err != nil {
134		t.Fatal("got an error from GetIntSlice():", err)
135	}
136	for i, v := range getIS {
137		d, err := strconv.Atoi(vals[i])
138		if err != nil {
139			t.Fatalf("got error: %v", err)
140		}
141		if d != v {
142			t.Fatalf("expected is[%d] to be %d from GetIntSlice but got: %d", i, d, v)
143		}
144	}
145}
146
147func TestISCalledTwice(t *testing.T) {
148	var is []int
149	f := setUpISFlagSet(&is)
150
151	in := []string{"1,2", "3"}
152	expected := []int{1, 2, 3}
153	argfmt := "--is=%s"
154	arg1 := fmt.Sprintf(argfmt, in[0])
155	arg2 := fmt.Sprintf(argfmt, in[1])
156	err := f.Parse([]string{arg1, arg2})
157	if err != nil {
158		t.Fatal("expected no error; got", err)
159	}
160	for i, v := range is {
161		if expected[i] != v {
162			t.Fatalf("expected is[%d] to be %d but got: %d", i, expected[i], v)
163		}
164	}
165}
166