1
2
3
4
5 package analysistest_test
6
7 import (
8 "fmt"
9 "go/token"
10 "log"
11 "os"
12 "reflect"
13 "strings"
14 "testing"
15
16 "golang.org/x/tools/go/analysis"
17 "golang.org/x/tools/go/analysis/analysistest"
18 "golang.org/x/tools/go/analysis/passes/findcall"
19 "golang.org/x/tools/internal/testenv"
20 )
21
22 func init() {
23
24
25 if err := os.Setenv("GOPROXY", "off"); err != nil {
26 log.Fatal(err)
27 }
28 }
29
30
31 func TestTheTest(t *testing.T) {
32 testenv.NeedsTool(t, "go")
33
34
35
36 findcall.Analyzer.Flags.Set("name", "println")
37
38 filemap := map[string]string{
39 "a/b.go": `package main // want package:"found"
40
41 func main() {
42 // The expectation is ill-formed:
43 print() // want: "diagnostic"
44 print() // want foo"fact"
45 print() // want foo:
46 print() // want "\xZZ scan error"
47
48 // A diagnostic is reported at this line, but the expectation doesn't match:
49 println("hello, world") // want "wrong expectation text"
50
51 // An unexpected diagnostic is reported at this line:
52 println() // trigger an unexpected diagnostic
53
54 // No diagnostic is reported at this line:
55 print() // want "unsatisfied expectation"
56
57 // OK
58 println("hello, world") // want "call of println"
59
60 // OK /* */-form.
61 println("안녕, 세계") /* want "call of println" */
62
63 // OK (nested comment)
64 println("Γειά σου, Κόσμε") // some comment // want "call of println"
65
66 // OK (nested comment in /**/)
67 println("你好，世界") /* some comment // want "call of println" */
68
69 // OK (multiple expectations on same line)
70 println(); println() // want "call of println(...)" "call of println(...)"
71
72 // A Line that is not formatted correctly in the golden file.
73 }
74
75 // OK (facts and diagnostics on same line)
76 func println(...interface{}) { println() } // want println:"found" "call of println(...)"
77
78 `,
79 "a/b.go.golden": `package main // want package:"found"
80
81 func main() {
82 // The expectation is ill-formed:
83 print() // want: "diagnostic"
84 print() // want foo"fact"
85 print() // want foo:
86 print() // want "\xZZ scan error"
87
88 // A diagnostic is reported at this line, but the expectation doesn't match:
89 println_TEST_("hello, world") // want "wrong expectation text"
90
91 // An unexpected diagnostic is reported at this line:
92 println_TEST_() // trigger an unexpected diagnostic
93
94 // No diagnostic is reported at this line:
95 print() // want "unsatisfied expectation"
96
97 // OK
98 println_TEST_("hello, world") // want "call of println"
99
100 // OK /* */-form.
101 println_TEST_("안녕, 세계") /* want "call of println" */
102
103 // OK (nested comment)
104 println_TEST_("Γειά σου, Κόσμε") // some comment // want "call of println"
105
106 // OK (nested comment in /**/)
107 println_TEST_("你好，世界") /* some comment // want "call of println" */
108
109 // OK (multiple expectations on same line)
110 println_TEST_()
111 println_TEST_() // want "call of println(...)" "call of println(...)"
112
113 // A Line that is not formatted correctly in the golden file.
114 }
115
116 // OK (facts and diagnostics on same line)
117 func println(...interface{}) { println_TEST_() } // want println:"found" "call of println(...)"
118 `,
119 "a/b_test.go": `package main
120
121 // Test file shouldn't mess with things (issue #40574)
122 `,
123 }
124 dir, cleanup, err := analysistest.WriteFiles(filemap)
125 if err != nil {
126 t.Fatal(err)
127 }
128 defer cleanup()
129
130 var got []string
131 t2 := errorfunc(func(s string) { got = append(got, s) })
132 analysistest.RunWithSuggestedFixes(t2, dir, findcall.Analyzer, "a")
133
134 want := []string{
135 `a/b.go:5: in 'want' comment: unexpected ":"`,
136 `a/b.go:6: in 'want' comment: got String after foo, want ':'`,
137 `a/b.go:7: in 'want' comment: got EOF, want regular expression`,
138 `a/b.go:8: in 'want' comment: invalid char escape`,
139 "a/b.go:11:9: diagnostic \"call of println(...)\" does not match pattern `wrong expectation text`",
140 `a/b.go:14:9: unexpected diagnostic: call of println(...)`,
141 "a/b.go:11: no diagnostic was reported matching `wrong expectation text`",
142 "a/b.go:17: no diagnostic was reported matching `unsatisfied expectation`",
143
144 `a/b.go:5: in 'want' comment: unexpected ":"`,
145 `a/b.go:6: in 'want' comment: got String after foo, want ':'`,
146 `a/b.go:7: in 'want' comment: got EOF, want regular expression`,
147 `a/b.go:8: in 'want' comment: invalid char escape`,
148 "a/b.go:11:9: diagnostic \"call of println(...)\" does not match pattern `wrong expectation text`",
149 `a/b.go:14:9: unexpected diagnostic: call of println(...)`,
150 "a/b.go:11: no diagnostic was reported matching `wrong expectation text`",
151 "a/b.go:17: no diagnostic was reported matching `unsatisfied expectation`",
152 }
153 if !reflect.DeepEqual(got, want) {
154 t.Errorf("got:\n%s\nwant:\n%s",
155 strings.Join(got, "\n"),
156 strings.Join(want, "\n"))
157 }
158 }
159
160
161
162 func TestNoEnd(t *testing.T) {
163 noend := &analysis.Analyzer{
164 Name: "noend",
165 Doc: "inserts /*hello*/ before first decl",
166 Run: func(pass *analysis.Pass) (any, error) {
167 decl := pass.Files[0].Decls[0]
168 pass.Report(analysis.Diagnostic{
169 Pos: decl.Pos(),
170 End: token.NoPos,
171 Message: "say hello",
172 SuggestedFixes: []analysis.SuggestedFix{{
173 Message: "say hello",
174 TextEdits: []analysis.TextEdit{
175 {
176 Pos: decl.Pos(),
177 End: token.NoPos,
178 NewText: []byte("/*hello*/"),
179 },
180 },
181 }},
182 })
183 return nil, nil
184 },
185 }
186
187 filemap := map[string]string{
188 "a/a.go": `package a
189
190 func F() {} // want "say hello"`,
191 "a/a.go.golden": `package a
192
193 /*hello*/
194 func F() {} // want "say hello"`,
195 }
196 dir, cleanup, err := analysistest.WriteFiles(filemap)
197 if err != nil {
198 t.Fatal(err)
199 }
200 defer cleanup()
201
202 analysistest.RunWithSuggestedFixes(t, dir, noend, "a")
203 }
204
205 type errorfunc func(string)
206
207 func (f errorfunc) Errorf(format string, args ...interface{}) {
208 f(fmt.Sprintf(format, args...))
209 }
210
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