1 package format_test
2
3 import (
4 "testing"
5
6 "gotest.tools/v3/assert"
7 "gotest.tools/v3/internal/format"
8 )
9
10 func TestMessage(t *testing.T) {
11 var testcases = []struct {
12 doc string
13 args []interface{}
14 expected string
15 }{
16 {
17 doc: "none",
18 },
19 {
20 doc: "single string",
21 args: args("foo"),
22 expected: "foo",
23 },
24 {
25 doc: "single non-string",
26 args: args(123),
27 expected: "123",
28 },
29 {
30 doc: "format string and args",
31 args: args("%s %v", "a", 3),
32 expected: "a 3",
33 },
34 }
35
36 for _, tc := range testcases {
37 t.Run(tc.doc, func(t *testing.T) {
38 assert.Equal(t, format.Message(tc.args...), tc.expected)
39 })
40 }
41 }
42
43 func args(a ...interface{}) []interface{} {
44 return a
45 }
46
47 func TestWithCustomMessage(t *testing.T) {
48 t.Run("only custom", func(t *testing.T) {
49 msg := format.WithCustomMessage("", "extra")
50 assert.Equal(t, msg, "extra")
51 })
52
53 t.Run("only source", func(t *testing.T) {
54 msg := format.WithCustomMessage("source")
55 assert.Equal(t, msg, "source")
56 })
57
58 t.Run("source and custom", func(t *testing.T) {
59 msg := format.WithCustomMessage("source", "extra")
60 assert.Equal(t, msg, "source: extra")
61 })
62 }
63
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