1
2
3
4
5 package parse
6
7 import (
8 "flag"
9 "fmt"
10 "strings"
11 "testing"
12 )
13
14 var debug = flag.Bool("debug", false, "show the errors produced by the main tests")
15
16 type numberTest struct {
17 text string
18 isInt bool
19 isUint bool
20 isFloat bool
21 isComplex bool
22 int64
23 uint64
24 float64
25 complex128
26 }
27
28 var numberTests = []numberTest{
29
30 {"0", true, true, true, false, 0, 0, 0, 0},
31 {"-0", true, true, true, false, 0, 0, 0, 0},
32 {"73", true, true, true, false, 73, 73, 73, 0},
33 {"7_3", true, true, true, false, 73, 73, 73, 0},
34 {"0b10_010_01", true, true, true, false, 73, 73, 73, 0},
35 {"0B10_010_01", true, true, true, false, 73, 73, 73, 0},
36 {"073", true, true, true, false, 073, 073, 073, 0},
37 {"0o73", true, true, true, false, 073, 073, 073, 0},
38 {"0O73", true, true, true, false, 073, 073, 073, 0},
39 {"0x73", true, true, true, false, 0x73, 0x73, 0x73, 0},
40 {"0X73", true, true, true, false, 0x73, 0x73, 0x73, 0},
41 {"0x7_3", true, true, true, false, 0x73, 0x73, 0x73, 0},
42 {"-73", true, false, true, false, -73, 0, -73, 0},
43 {"+73", true, false, true, false, 73, 0, 73, 0},
44 {"100", true, true, true, false, 100, 100, 100, 0},
45 {"1e9", true, true, true, false, 1e9, 1e9, 1e9, 0},
46 {"-1e9", true, false, true, false, -1e9, 0, -1e9, 0},
47 {"-1.2", false, false, true, false, 0, 0, -1.2, 0},
48 {"1e19", false, true, true, false, 0, 1e19, 1e19, 0},
49 {"1e1_9", false, true, true, false, 0, 1e19, 1e19, 0},
50 {"1E19", false, true, true, false, 0, 1e19, 1e19, 0},
51 {"-1e19", false, false, true, false, 0, 0, -1e19, 0},
52 {"0x_1p4", true, true, true, false, 16, 16, 16, 0},
53 {"0X_1P4", true, true, true, false, 16, 16, 16, 0},
54 {"0x_1p-4", false, false, true, false, 0, 0, 1 / 16., 0},
55 {"4i", false, false, false, true, 0, 0, 0, 4i},
56 {"-1.2+4.2i", false, false, false, true, 0, 0, 0, -1.2 + 4.2i},
57 {"073i", false, false, false, true, 0, 0, 0, 73i},
58
59 {"0i", true, true, true, true, 0, 0, 0, 0},
60 {"-1.2+0i", false, false, true, true, 0, 0, -1.2, -1.2},
61 {"-12+0i", true, false, true, true, -12, 0, -12, -12},
62 {"13+0i", true, true, true, true, 13, 13, 13, 13},
63
64 {"0123", true, true, true, false, 0123, 0123, 0123, 0},
65 {"-0x0", true, true, true, false, 0, 0, 0, 0},
66 {"0xdeadbeef", true, true, true, false, 0xdeadbeef, 0xdeadbeef, 0xdeadbeef, 0},
67
68 {`'a'`, true, true, true, false, 'a', 'a', 'a', 0},
69 {`'\n'`, true, true, true, false, '\n', '\n', '\n', 0},
70 {`'\\'`, true, true, true, false, '\\', '\\', '\\', 0},
71 {`'\''`, true, true, true, false, '\'', '\'', '\'', 0},
72 {`'\xFF'`, true, true, true, false, 0xFF, 0xFF, 0xFF, 0},
73 {`'パ'`, true, true, true, false, 0x30d1, 0x30d1, 0x30d1, 0},
74 {`'\u30d1'`, true, true, true, false, 0x30d1, 0x30d1, 0x30d1, 0},
75 {`'\U000030d1'`, true, true, true, false, 0x30d1, 0x30d1, 0x30d1, 0},
76
77 {text: "+-2"},
78 {text: "0x123."},
79 {text: "1e."},
80 {text: "0xi."},
81 {text: "1+2."},
82 {text: "'x"},
83 {text: "'xx'"},
84 {text: "'433937734937734969526500969526500'"},
85
86 {"0xef", true, true, true, false, 0xef, 0xef, 0xef, 0},
87 }
88
89 func TestNumberParse(t *testing.T) {
90 for _, test := range numberTests {
91
92
93 var c complex128
94 typ := itemNumber
95 var tree *Tree
96 if test.text[0] == '\'' {
97 typ = itemCharConstant
98 } else {
99 _, err := fmt.Sscan(test.text, &c)
100 if err == nil {
101 typ = itemComplex
102 }
103 }
104 n, err := tree.newNumber(0, test.text, typ)
105 ok := test.isInt || test.isUint || test.isFloat || test.isComplex
106 if ok && err != nil {
107 t.Errorf("unexpected error for %q: %s", test.text, err)
108 continue
109 }
110 if !ok && err == nil {
111 t.Errorf("expected error for %q", test.text)
112 continue
113 }
114 if !ok {
115 if *debug {
116 fmt.Printf("%s\n\t%s\n", test.text, err)
117 }
118 continue
119 }
120 if n.IsComplex != test.isComplex {
121 t.Errorf("complex incorrect for %q; should be %t", test.text, test.isComplex)
122 }
123 if test.isInt {
124 if !n.IsInt {
125 t.Errorf("expected integer for %q", test.text)
126 }
127 if n.Int64 != test.int64 {
128 t.Errorf("int64 for %q should be %d Is %d", test.text, test.int64, n.Int64)
129 }
130 } else if n.IsInt {
131 t.Errorf("did not expect integer for %q", test.text)
132 }
133 if test.isUint {
134 if !n.IsUint {
135 t.Errorf("expected unsigned integer for %q", test.text)
136 }
137 if n.Uint64 != test.uint64 {
138 t.Errorf("uint64 for %q should be %d Is %d", test.text, test.uint64, n.Uint64)
139 }
140 } else if n.IsUint {
141 t.Errorf("did not expect unsigned integer for %q", test.text)
142 }
143 if test.isFloat {
144 if !n.IsFloat {
145 t.Errorf("expected float for %q", test.text)
146 }
147 if n.Float64 != test.float64 {
148 t.Errorf("float64 for %q should be %g Is %g", test.text, test.float64, n.Float64)
149 }
150 } else if n.IsFloat {
151 t.Errorf("did not expect float for %q", test.text)
152 }
153 if test.isComplex {
154 if !n.IsComplex {
155 t.Errorf("expected complex for %q", test.text)
156 }
157 if n.Complex128 != test.complex128 {
158 t.Errorf("complex128 for %q should be %g Is %g", test.text, test.complex128, n.Complex128)
159 }
160 } else if n.IsComplex {
161 t.Errorf("did not expect complex for %q", test.text)
162 }
163 }
164 }
165
166 type parseTest struct {
167 name string
168 input string
169 ok bool
170 result string
171 }
172
173 const (
174 noError = true
175 hasError = false
176 )
177
178 var parseTests = []parseTest{
179 {"empty", "", noError,
180 ``},
181 {"comment", "{{/*\n\n\n*/}}", noError,
182 ``},
183 {"spaces", " \t\n", noError,
184 `" \t\n"`},
185 {"text", "some text", noError,
186 `"some text"`},
187 {"emptyAction", "{{}}", hasError,
188 `{{}}`},
189 {"field", "{{.X}}", noError,
190 `{{.X}}`},
191 {"simple command", "{{printf}}", noError,
192 `{{printf}}`},
193 {"$ invocation", "{{$}}", noError,
194 "{{$}}"},
195 {"variable invocation", "{{with $x := 3}}{{$x 23}}{{end}}", noError,
196 "{{with $x := 3}}{{$x 23}}{{end}}"},
197 {"variable with fields", "{{$.I}}", noError,
198 "{{$.I}}"},
199 {"multi-word command", "{{printf `%d` 23}}", noError,
200 "{{printf `%d` 23}}"},
201 {"pipeline", "{{.X|.Y}}", noError,
202 `{{.X | .Y}}`},
203 {"pipeline with decl", "{{$x := .X|.Y}}", noError,
204 `{{$x := .X | .Y}}`},
205 {"nested pipeline", "{{.X (.Y .Z) (.A | .B .C) (.E)}}", noError,
206 `{{.X (.Y .Z) (.A | .B .C) (.E)}}`},
207 {"field applied to parentheses", "{{(.Y .Z).Field}}", noError,
208 `{{(.Y .Z).Field}}`},
209 {"simple if", "{{if .X}}hello{{end}}", noError,
210 `{{if .X}}"hello"{{end}}`},
211 {"if with else", "{{if .X}}true{{else}}false{{end}}", noError,
212 `{{if .X}}"true"{{else}}"false"{{end}}`},
213 {"if with else if", "{{if .X}}true{{else if .Y}}false{{end}}", noError,
214 `{{if .X}}"true"{{else}}{{if .Y}}"false"{{end}}{{end}}`},
215 {"if else chain", "+{{if .X}}X{{else if .Y}}Y{{else if .Z}}Z{{end}}+", noError,
216 `"+"{{if .X}}"X"{{else}}{{if .Y}}"Y"{{else}}{{if .Z}}"Z"{{end}}{{end}}{{end}}"+"`},
217 {"simple range", "{{range .X}}hello{{end}}", noError,
218 `{{range .X}}"hello"{{end}}`},
219 {"chained field range", "{{range .X.Y.Z}}hello{{end}}", noError,
220 `{{range .X.Y.Z}}"hello"{{end}}`},
221 {"nested range", "{{range .X}}hello{{range .Y}}goodbye{{end}}{{end}}", noError,
222 `{{range .X}}"hello"{{range .Y}}"goodbye"{{end}}{{end}}`},
223 {"range with else", "{{range .X}}true{{else}}false{{end}}", noError,
224 `{{range .X}}"true"{{else}}"false"{{end}}`},
225 {"range over pipeline", "{{range .X|.M}}true{{else}}false{{end}}", noError,
226 `{{range .X | .M}}"true"{{else}}"false"{{end}}`},
227 {"range []int", "{{range .SI}}{{.}}{{end}}", noError,
228 `{{range .SI}}{{.}}{{end}}`},
229 {"range 1 var", "{{range $x := .SI}}{{.}}{{end}}", noError,
230 `{{range $x := .SI}}{{.}}{{end}}`},
231 {"range 2 vars", "{{range $x, $y := .SI}}{{.}}{{end}}", noError,
232 `{{range $x, $y := .SI}}{{.}}{{end}}`},
233 {"constants", "{{range .SI 1 -3.2i true false 'a' nil}}{{end}}", noError,
234 `{{range .SI 1 -3.2i true false 'a' nil}}{{end}}`},
235 {"template", "{{template `x`}}", noError,
236 `{{template "x"}}`},
237 {"template with arg", "{{template `x` .Y}}", noError,
238 `{{template "x" .Y}}`},
239 {"with", "{{with .X}}hello{{end}}", noError,
240 `{{with .X}}"hello"{{end}}`},
241 {"with with else", "{{with .X}}hello{{else}}goodbye{{end}}", noError,
242 `{{with .X}}"hello"{{else}}"goodbye"{{end}}`},
243
244 {"trim left", "x \r\n\t{{- 3}}", noError, `"x"{{3}}`},
245 {"trim right", "{{3 -}}\n\n\ty", noError, `{{3}}"y"`},
246 {"trim left and right", "x \r\n\t{{- 3 -}}\n\n\ty", noError, `"x"{{3}}"y"`},
247 {"trim with extra spaces", "x\n{{- 3 -}}\ny", noError, `"x"{{3}}"y"`},
248 {"comment trim left", "x \r\n\t{{- /* hi */}}", noError, `"x"`},
249 {"comment trim right", "{{/* hi */ -}}\n\n\ty", noError, `"y"`},
250 {"comment trim left and right", "x \r\n\t{{- /* */ -}}\n\n\ty", noError, `"x""y"`},
251 {"block definition", `{{block "foo" .}}hello{{end}}`, noError,
252 `{{template "foo" .}}`},
253
254 {"unclosed action", "hello{{range", hasError, ""},
255 {"unmatched end", "{{end}}", hasError, ""},
256 {"unmatched else", "{{else}}", hasError, ""},
257 {"unmatched else after if", "{{if .X}}hello{{end}}{{else}}", hasError, ""},
258 {"multiple else", "{{if .X}}1{{else}}2{{else}}3{{end}}", hasError, ""},
259 {"missing end", "hello{{range .x}}", hasError, ""},
260 {"missing end after else", "hello{{range .x}}{{else}}", hasError, ""},
261 {"undefined function", "hello{{undefined}}", hasError, ""},
262 {"undefined variable", "{{$x}}", hasError, ""},
263 {"variable undefined after end", "{{with $x := 4}}{{end}}{{$x}}", hasError, ""},
264 {"variable undefined in template", "{{template $v}}", hasError, ""},
265 {"declare with field", "{{with $x.Y := 4}}{{end}}", hasError, ""},
266 {"template with field ref", "{{template .X}}", hasError, ""},
267 {"template with var", "{{template $v}}", hasError, ""},
268 {"invalid punctuation", "{{printf 3, 4}}", hasError, ""},
269 {"multidecl outside range", "{{with $v, $u := 3}}{{end}}", hasError, ""},
270 {"too many decls in range", "{{range $u, $v, $w := 3}}{{end}}", hasError, ""},
271 {"dot applied to parentheses", "{{printf (printf .).}}", hasError, ""},
272 {"adjacent args", "{{printf 3`x`}}", hasError, ""},
273 {"adjacent args with .", "{{printf `x`.}}", hasError, ""},
274 {"extra end after if", "{{if .X}}a{{else if .Y}}b{{end}}{{end}}", hasError, ""},
275
276 {"bug0a", "{{$x := 0}}{{$x}}", noError, "{{$x := 0}}{{$x}}"},
277 {"bug0b", "{{$x += 1}}{{$x}}", hasError, ""},
278 {"bug0c", "{{$x ! 2}}{{$x}}", hasError, ""},
279 {"bug0d", "{{$x % 3}}{{$x}}", hasError, ""},
280
281 {"bug0e", "{{range $x := $y := 3}}{{end}}", hasError, ""},
282
283 {"bug1a", "{{$x:=.}}{{$x!2}}", hasError, ""},
284 {"bug1b", "{{$x:=.}}{{$x+2}}", hasError, ""},
285 {"bug1c", "{{$x:=.}}{{$x +2}}", noError, "{{$x := .}}{{$x +2}}"},
286
287 {"dot after integer", "{{1.E}}", hasError, ""},
288 {"dot after float", "{{0.1.E}}", hasError, ""},
289 {"dot after boolean", "{{true.E}}", hasError, ""},
290 {"dot after char", "{{'a'.any}}", hasError, ""},
291 {"dot after string", `{{"hello".guys}}`, hasError, ""},
292 {"dot after dot", "{{..E}}", hasError, ""},
293 {"dot after nil", "{{nil.E}}", hasError, ""},
294
295 {"wrong pipeline dot", "{{12|.}}", hasError, ""},
296 {"wrong pipeline number", "{{.|12|printf}}", hasError, ""},
297 {"wrong pipeline string", "{{.|printf|\"error\"}}", hasError, ""},
298 {"wrong pipeline char", "{{12|printf|'e'}}", hasError, ""},
299 {"wrong pipeline boolean", "{{.|true}}", hasError, ""},
300 {"wrong pipeline nil", "{{'c'|nil}}", hasError, ""},
301 {"empty pipeline", `{{printf "%d" ( ) }}`, hasError, ""},
302
303 {"block definition", `{{block "foo"}}hello{{end}}`, hasError, ""},
304 }
305
306 var builtins = map[string]interface{}{
307 "printf": fmt.Sprintf,
308 "contains": strings.Contains,
309 }
310
311 func testParse(doCopy bool, t *testing.T) {
312 textFormat = "%q"
313 defer func() { textFormat = "%s" }()
314 for _, test := range parseTests {
315 tmpl, err := New(test.name).Parse(test.input, "", "", make(map[string]*Tree), builtins)
316 switch {
317 case err == nil && !test.ok:
318 t.Errorf("%q: expected error; got none", test.name)
319 continue
320 case err != nil && test.ok:
321 t.Errorf("%q: unexpected error: %v", test.name, err)
322 continue
323 case err != nil && !test.ok:
324
325 if *debug {
326 fmt.Printf("%s: %s\n\t%s\n", test.name, test.input, err)
327 }
328 continue
329 }
330 var result string
331 if doCopy {
332 result = tmpl.Root.Copy().String()
333 } else {
334 result = tmpl.Root.String()
335 }
336 if result != test.result {
337 t.Errorf("%s=(%q): got\n\t%v\nexpected\n\t%v", test.name, test.input, result, test.result)
338 }
339 }
340 }
341
342 func TestParse(t *testing.T) {
343 testParse(false, t)
344 }
345
346
347 func TestParseCopy(t *testing.T) {
348 testParse(true, t)
349 }
350
351 type isEmptyTest struct {
352 name string
353 input string
354 empty bool
355 }
356
357 var isEmptyTests = []isEmptyTest{
358 {"empty", ``, true},
359 {"nonempty", `hello`, false},
360 {"spaces only", " \t\n \t\n", true},
361 {"definition", `{{define "x"}}something{{end}}`, true},
362 {"definitions and space", "{{define `x`}}something{{end}}\n\n{{define `y`}}something{{end}}\n\n", true},
363 {"definitions and text", "{{define `x`}}something{{end}}\nx\n{{define `y`}}something{{end}}\ny\n", false},
364 {"definition and action", "{{define `x`}}something{{end}}{{if 3}}foo{{end}}", false},
365 }
366
367 func TestIsEmpty(t *testing.T) {
368 if !IsEmptyTree(nil) {
369 t.Errorf("nil tree is not empty")
370 }
371 for _, test := range isEmptyTests {
372 tree, err := New("root").Parse(test.input, "", "", make(map[string]*Tree), nil)
373 if err != nil {
374 t.Errorf("%q: unexpected error: %v", test.name, err)
375 continue
376 }
377 if empty := IsEmptyTree(tree.Root); empty != test.empty {
378 t.Errorf("%q: expected %t got %t", test.name, test.empty, empty)
379 }
380 }
381 }
382
383 func TestErrorContextWithTreeCopy(t *testing.T) {
384 tree, err := New("root").Parse("{{if true}}{{end}}", "", "", make(map[string]*Tree), nil)
385 if err != nil {
386 t.Fatalf("unexpected tree parse failure: %v", err)
387 }
388 treeCopy := tree.Copy()
389 wantLocation, wantContext := tree.ErrorContext(tree.Root.Nodes[0])
390 gotLocation, gotContext := treeCopy.ErrorContext(treeCopy.Root.Nodes[0])
391 if wantLocation != gotLocation {
392 t.Errorf("wrong error location want %q got %q", wantLocation, gotLocation)
393 }
394 if wantContext != gotContext {
395 t.Errorf("wrong error location want %q got %q", wantContext, gotContext)
396 }
397 }
398
399
400 var errorTests = []parseTest{
401
402 {"unclosed1",
403 "line1\n{{",
404 hasError, `unclosed1:2: unexpected unclosed action in command`},
405 {"unclosed2",
406 "line1\n{{define `x`}}line2\n{{",
407 hasError, `unclosed2:3: unexpected unclosed action in command`},
408
409 {"function",
410 "{{foo}}",
411 hasError, `function "foo" not defined`},
412 {"comment",
413 "{{/*}}",
414 hasError, `unclosed comment`},
415 {"lparen",
416 "{{.X (1 2 3}}",
417 hasError, `unclosed left paren`},
418 {"rparen",
419 "{{.X 1 2 3)}}",
420 hasError, `unexpected ")"`},
421 {"space",
422 "{{`x`3}}",
423 hasError, `in operand`},
424 {"idchar",
425 "{{a#}}",
426 hasError, `'#'`},
427 {"charconst",
428 "{{'a}}",
429 hasError, `unterminated character constant`},
430 {"stringconst",
431 `{{"a}}`,
432 hasError, `unterminated quoted string`},
433 {"rawstringconst",
434 "{{`a}}",
435 hasError, `unterminated raw quoted string`},
436 {"number",
437 "{{0xi}}",
438 hasError, `number syntax`},
439 {"multidefine",
440 "{{define `a`}}a{{end}}{{define `a`}}b{{end}}",
441 hasError, `multiple definition of template`},
442 {"eof",
443 "{{range .X}}",
444 hasError, `unexpected EOF`},
445 {"variable",
446
447 "{{$x := 23}}{{with $x.y := 3}}{{$x 23}}{{end}}",
448 hasError, `unexpected ":="`},
449 {"multidecl",
450 "{{$a,$b,$c := 23}}",
451 hasError, `too many declarations`},
452 {"undefvar",
453 "{{$a}}",
454 hasError, `undefined variable`},
455 {"wrongdot",
456 "{{true.any}}",
457 hasError, `unexpected . after term`},
458 {"wrongpipeline",
459 "{{12|false}}",
460 hasError, `non executable command in pipeline`},
461 {"emptypipeline",
462 `{{ ( ) }}`,
463 hasError, `missing value for parenthesized pipeline`},
464 {"multilinerawstring",
465 "{{ $v := `\n` }} {{",
466 hasError, `multilinerawstring:2: unexpected unclosed action`},
467 {"rangeundefvar",
468 "{{range $k}}{{end}}",
469 hasError, `undefined variable`},
470 {"rangeundefvars",
471 "{{range $k, $v}}{{end}}",
472 hasError, `undefined variable`},
473 {"rangemissingvalue1",
474 "{{range $k,}}{{end}}",
475 hasError, `missing value for range`},
476 {"rangemissingvalue2",
477 "{{range $k, $v := }}{{end}}",
478 hasError, `missing value for range`},
479 {"rangenotvariable1",
480 "{{range $k, .}}{{end}}",
481 hasError, `range can only initialize variables`},
482 {"rangenotvariable2",
483 "{{range $k, 123 := .}}{{end}}",
484 hasError, `range can only initialize variables`},
485 }
486
487 func TestErrors(t *testing.T) {
488 for _, test := range errorTests {
489 t.Run(test.name, func(t *testing.T) {
490 _, err := New(test.name).Parse(test.input, "", "", make(map[string]*Tree))
491 if err == nil {
492 t.Fatalf("expected error %q, got nil", test.result)
493 }
494 if !strings.Contains(err.Error(), test.result) {
495 t.Fatalf("error %q does not contain %q", err, test.result)
496 }
497 })
498 }
499 }
500
501 func TestBlock(t *testing.T) {
502 const (
503 input = `a{{block "inner" .}}bar{{.}}baz{{end}}b`
504 outer = `a{{template "inner" .}}b`
505 inner = `bar{{.}}baz`
506 )
507 treeSet := make(map[string]*Tree)
508 tmpl, err := New("outer").Parse(input, "", "", treeSet, nil)
509 if err != nil {
510 t.Fatal(err)
511 }
512 if g, w := tmpl.Root.String(), outer; g != w {
513 t.Errorf("outer template = %q, want %q", g, w)
514 }
515 inTmpl := treeSet["inner"]
516 if inTmpl == nil {
517 t.Fatal("block did not define template")
518 }
519 if g, w := inTmpl.Root.String(), inner; g != w {
520 t.Errorf("inner template = %q, want %q", g, w)
521 }
522 }
523
524 func TestLineNum(t *testing.T) {
525 const count = 100
526 text := strings.Repeat("{{printf 1234}}\n", count)
527 tree, err := New("bench").Parse(text, "", "", make(map[string]*Tree), builtins)
528 if err != nil {
529 t.Fatal(err)
530 }
531
532
533 nodes := tree.Root.Nodes
534 for i := 0; i < len(nodes); i += 2 {
535 line := 1 + i/2
536
537 action := nodes[i].(*ActionNode)
538 if action.Line != line {
539 t.Fatalf("line %d: action is line %d", line, action.Line)
540 }
541 pipe := action.Pipe
542 if pipe.Line != line {
543 t.Fatalf("line %d: pipe is line %d", line, pipe.Line)
544 }
545 }
546 }
547
548 func BenchmarkParseLarge(b *testing.B) {
549 text := strings.Repeat("{{1234}}\n", 10000)
550 for i := 0; i < b.N; i++ {
551 _, err := New("bench").Parse(text, "", "", make(map[string]*Tree), builtins)
552 if err != nil {
553 b.Fatal(err)
554 }
555 }
556 }
557
558 var sinkv, sinkl string
559
560 func BenchmarkVariableString(b *testing.B) {
561 v := &VariableNode{
562 Ident: []string{"$", "A", "BB", "CCC", "THIS_IS_THE_VARIABLE_BEING_PROCESSED"},
563 }
564 b.ResetTimer()
565 b.ReportAllocs()
566 for i := 0; i < b.N; i++ {
567 sinkv = v.String()
568 }
569 if sinkv == "" {
570 b.Fatal("Benchmark was not run")
571 }
572 }
573
574 func BenchmarkListString(b *testing.B) {
575 text := `
576 {{(printf .Field1.Field2.Field3).Value}}
577 {{$x := (printf .Field1.Field2.Field3).Value}}
578 {{$y := (printf $x.Field1.Field2.Field3).Value}}
579 {{$z := $y.Field1.Field2.Field3}}
580 {{if contains $y $z}}
581 {{printf "%q" $y}}
582 {{else}}
583 {{printf "%q" $x}}
584 {{end}}
585 {{with $z.Field1 | contains "boring"}}
586 {{printf "%q" . | printf "%s"}}
587 {{else}}
588 {{printf "%d %d %d" 11 11 11}}
589 {{printf "%d %d %s" 22 22 $x.Field1.Field2.Field3 | printf "%s"}}
590 {{printf "%v" (contains $z.Field1.Field2 $y)}}
591 {{end}}
592 `
593 tree, err := New("bench").Parse(text, "", "", make(map[string]*Tree), builtins)
594 if err != nil {
595 b.Fatal(err)
596 }
597 b.ResetTimer()
598 b.ReportAllocs()
599 for i := 0; i < b.N; i++ {
600 sinkl = tree.Root.String()
601 }
602 if sinkl == "" {
603 b.Fatal("Benchmark was not run")
604 }
605 }
606
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