fuzz: Automatically export all tests pickles into fuzz/corpus

This way whatever/whenever we add a tricky test pickle into main tests
table, it should be automatically also be present as a starting point in
the fuzz corpus. This should hopefully improve fuzzing coverage.

fuzz/corpus/test-0-1.pickle

+N.
\ No newline at end of file

fuzz/corpus/test-1-1.pickle

+I01
+.
\ No newline at end of file

fuzz/corpus/test-1-2.pickle

+.
\ No newline at end of file

fuzz/corpus/test-10-1.pickle

+(I1
+I2
+t.
\ No newline at end of file

fuzz/corpus/test-10-2.pickle

+(K
Kt.
\ No newline at end of file

fuzz/corpus/test-10-3.pickle

+K
K.
\ No newline at end of file

fuzz/corpus/test-10-4.pickle

+I1
+I2
+†.
\ No newline at end of file

fuzz/corpus/test-11-1.pickle

+(I1
+I2
+I3
+t.
\ No newline at end of file

fuzz/corpus/test-11-2.pickle

+(K
KKt.
\ No newline at end of file

fuzz/corpus/test-11-3.pickle

+K
KK.
\ No newline at end of file

fuzz/corpus/test-11-4.pickle

+I1
+I2
+I3
+‡.
\ No newline at end of file

fuzz/corpus/test-12-1.pickle

+((I1
+I2
+t(I3
+I4
+tt.
\ No newline at end of file

fuzz/corpus/test-12-2.pickle

+((K
Kt(KKtt.
\ No newline at end of file

fuzz/corpus/test-12-3.pickle

+K
KKK.
\ No newline at end of file

fuzz/corpus/test-12-4.pickle

+((I1
+I2
+tp0
+(I3
+I4
+tp1
+tp2
+.
\ No newline at end of file

fuzz/corpus/test-13-1.pickle

+(l.
\ No newline at end of file

fuzz/corpus/test-13-2.pickle

+].
\ No newline at end of file

fuzz/corpus/test-13-3.pickle

+(lp0
+.
\ No newline at end of file

fuzz/corpus/test-14-1.pickle

+(I1
+I2
+I3
+I01
+l.
\ No newline at end of file

fuzz/corpus/test-14-2.pickle

+(K
KKI01
+l.
\ No newline at end of file

fuzz/corpus/test-14-3.pickle

+(K
KKl.
\ No newline at end of file

fuzz/corpus/test-14-4.pickle

+(lp0
+I1
+aI2
+aI3
+aI01
+a.
\ No newline at end of file

fuzz/corpus/test-15-1.pickle

+S"abc"
+.
\ No newline at end of file

fuzz/corpus/test-15-2.pickle

+Uabc.
\ No newline at end of file

fuzz/corpus/test-15-4.pickle

+abc.
\ No newline at end of file

fuzz/corpus/test-15-6.pickle

+S'abc'
+p0
+.
\ No newline at end of file

fuzz/corpus/test-15-7.pickle

+S'abc'
+.
\ No newline at end of file

fuzz/corpus/test-16-1.pickle

+S"日本語"
+.
\ No newline at end of file

fuzz/corpus/test-16-2.pickle

+U	日本語.
\ No newline at end of file

fuzz/corpus/test-16-4.pickle

+	日本語.
\ No newline at end of file

fuzz/corpus/test-16-5.pickle

+V\u65e5\u672c\u8a9e
+p0
+.
\ No newline at end of file

fuzz/corpus/test-17-1.pickle

+V' \u77e5\u4e8b\u5c11\u65f6\u70e6\u607c\u5c11\u3001\u8bc6\u4eba\u591a\u5904\u662f\u975e\u591a\u3002
+.
\ No newline at end of file

fuzz/corpus/test-17-3.pickle

+2' 知事少时烦恼少、识人多处是非多。.
\ No newline at end of file

fuzz/corpus/test-18-1.pickle

+(dp0
+.
\ No newline at end of file

fuzz/corpus/test-19-1.pickle

+(dp0
+S'a'
+p1
+S'1'
+p2
+sS'b'
+p3
+S'2'
+p4
+s.
\ No newline at end of file

fuzz/corpus/test-2-1.pickle

+I00
+.
\ No newline at end of file

fuzz/corpus/test-2-2.pickle

+.
\ No newline at end of file

fuzz/corpus/test-20-1.pickle

+S'foo'
+S'bar'
+.
\ No newline at end of file

fuzz/corpus/test-21-1.pickle

+cfoo
+bar
+S'bing'
+…R.
\ No newline at end of file

fuzz/corpus/test-22-1.pickle

+Pabc
+.
\ No newline at end of file

fuzz/corpus/test-22-2.pickle

+UabcQ.
\ No newline at end of file

fuzz/corpus/test-22-4.pickle

+abcQ.
\ No newline at end of file

fuzz/corpus/test-23-1.pickle

+Uabc
+dQ.
\ No newline at end of file

fuzz/corpus/test-23-3.pickle

+abc
+dQ.
\ No newline at end of file

fuzz/corpus/test-24-1.pickle

+(K
KtQ.
\ No newline at end of file

fuzz/corpus/test-24-2.pickle

+K
KQ.
\ No newline at end of file

fuzz/corpus/test-24-3.pickle

+(I1
+I2
+tQ.
\ No newline at end of file

fuzz/corpus/test-25-1.pickle

+(lr0000I17
+a.
\ No newline at end of file

fuzz/corpus/test-27-1.pickle

+(lp0
+(dp1
+S'start'
+p2
+I1383782400
+sS'step'
+p3
+I86400
+sS'end'
+p4
+I1385164800
+sS'values'
+p5
+(lp6
+F473.0
+aF497.0
+aF540.0
+aF1497.0
+aF1808.0
+aF1890.0
+aF2013.0
+aF1821.0
+aF1847.0
+aF2176.0
+aF2156.0
+aF1250.0
+aF2055.0
+aF1570.0
+aNaNasS'name'
+p7
+S'user.login.area.machine.metric.minute'
+p8
+sa.
\ No newline at end of file

fuzz/corpus/test-28-1.pickle

+(lp1
+(dp2
+S'intervals'
+p3
+(lp4
+sS'metric_path'
+p5
+S'carbon.agents'
+p6
+sS'isLeaf'
+p7
+I00
+sa(dp8
+g3
+(lp9
+sg5
+S'carbon.aggregator'
+p10
+sg7
+I00
+sa(dp11
+g3
+(lp12
+sg5
+S'carbon.relays'
+p13
+sg7
+I00
+sa.
\ No newline at end of file

fuzz/corpus/test-29-1.pickle

+V28,34,30,55,100,130,87,169,194,202,232,252,267,274,286,315,308,221,358,368,401,406,434,452,475,422,497,530,517,559,400,418,571,578,599,600,625,630,635,647,220,715,736,760,705,785,794,495,808,852,861,863,869,875,890,893,896,922,812,980,1074,1087,1145,1153,1163,1171,445,1195,1203,1242,1255,1274,52,1287,1319,636,1160,1339,1345,1353,1369,1391,1396,1405,1221,1410,1431,1451,1460,1470,1472,1492,1517,1528,419,1530,1532,1535,1573,1547,1574,1437,1594,1595,847,1551,983,1637,1647,1666,1672,1691,1726,1515,1731,1739,1741,1723,1776,1685,505,1624,1436,1890,728,1910,1931,1544,2013,2025,2030,2043,2069,1162,2129,2160,2199,2210,1911,2246,804,2276,1673,2299,2315,2322,2328,2355,2376,2405,1159,2425,2430,2452,1804,2442,2567,2577,1167,2611,2534,1879,2623,2682,2699,2652,2742,2754,2774,2782,2795,2431,2821,2751,2850,2090,513,2898,592,2932,2933,1555,2969,3003,3007,3010,2595,3064,3087,3105,3106,3110,151,3129,3132,304,3173,3205,3233,3245,3279,3302,3307,714,316,3331,3347,3360,3375,3380,3442,2620,3482,3493,3504,3516,3517,3518,3533,3511,2681,3530,3601,3606,3615,1210,3633,3651,3688,3690,3781,1907,3839,3840,3847,3867,3816,3899,3924,2345,3912,3966,982,4040,4056,4076,4084,4105,2649,4171,3873,1415,3567,4188,4221,4227,4231,2279,4250,4253,770,894,4343,4356,4289,4404,4438,2572,3124,4334,2114,3953,4522,4537,4561,4571,641,4629,4640,4664,4687,4702,4709,4740,4605,4746,4768,3856,3980,4814,2984,4895,4908,1249,4944,4947,4979,4988,4995,32,4066,5043,4956,5069,5072,5076,5084,5085,5137,4262,5152,479,5156,3114,1277,5183,5186,1825,5106,5216,963,5239,5252,5218,5284,1980,1972,5352,5364,5294,5379,5387,5391,5397,5419,5434,5468,5471,3350,5510,5522,5525,5538,5554,5573,5597,5610,5615,5624,842,2851,5641,5655,5656,5658,5678,5682,5696,5699,5709,5728,5753,851,5805,3528,5822,801,5855,2929,5871,5899,5918,5925,5927,5931,5935,5939,5958,778,5971,5980,5300,6009,6023,6030,6032,6016,6110,5009,6155,6197,1760,6253,6267,4886,5608,6289,6308,6311,6321,6316,6333,6244,6070,6349,6353,6186,6357,6366,6386,6387,6389,6399,6411,6421,6432,6437,6465,6302,6493,5602,6511,6529,6536,6170,6557,6561,6577,6581,6590,5290,5649,6231,6275,6635,6651,6652,5929,6692,6693,6695,6705,6711,6723,6738,6752,6753,3629,2975,6790,5845,338,6814,6826,6478,6860,6872,6882,880,356,6897,4102,6910,6611,1030,6934,6936,6987,6984,6999,827,6902,7027,7049,7051,4628,7084,7083,7071,7102,7137,5867,7152,6048,2410,3896,7168,7177,7224,6606,7233,1793,7261,7284,7290,7292,5212,7315,6964,3238,355,1969,4256,448,7325,908,2824,2981,3193,3363,3613,5325,6388,2247,1348,72,131,5414,7285,7343,7349,7362,7372,7381,7410,7418,7443,5512,7470,7487,7497,7516,7277,2622,2863,945,4344,3774,1024,2272,7523,4476,256,5643,3164,7539,7540,7489,1932,7559,7575,7602,7605,7609,7608,7619,7204,7652,7663,6907,7672,7654,7674,7687,7718,7745,1202,4030,7797,7801,7799,2924,7871,7873,7900,7907,7911,7912,7917,7923,7935,8007,8017,7636,8084,8087,3686,8114,8153,8158,8171,8175,8182,8205,8222,8225,8229,8232,8234,8244,8247,7256,8279,6929,8285,7040,8328,707,6773,7949,8468,5759,6344,8509,1635
+.
\ No newline at end of file

fuzz/corpus/test-3-1.pickle

+I5
+.
\ No newline at end of file

fuzz/corpus/test-3-2.pickle

+K.
\ No newline at end of file

fuzz/corpus/test-31-1.pickle

+((S"Foo"
+S"Qux"
+S"Bar"
+I4
+dl.
\ No newline at end of file

fuzz/corpus/test-4-1.pickle

+I291
+.
\ No newline at end of file

fuzz/corpus/test-4-2.pickle

+M#
.
\ No newline at end of file

fuzz/corpus/test-5-1.pickle

+I74565
+.
\ No newline at end of file

fuzz/corpus/test-6-1.pickle

+F1.23
+.
\ No newline at end of file

fuzz/corpus/test-6-2.pickle

+G?zG.
\ No newline at end of file

fuzz/corpus/test-7-1.pickle

+L12321231232131231231L
+.
\ No newline at end of file

fuzz/corpus/test-8-1.pickle

+(t.
\ No newline at end of file

fuzz/corpus/test-8-2.pickle

+).
\ No newline at end of file

fuzz/corpus/test-9-1.pickle

+(I1
+t.
\ No newline at end of file

fuzz/corpus/test-9-2.pickle

+(K
t.
\ No newline at end of file

fuzz/corpus/test-9-3.pickle

+K
.
\ No newline at end of file

fuzz/corpus/test-9-4.pickle

+I1
+.
\ No newline at end of file

fuzz_test.go

+// +build gofuzz
+
+package ogórek
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"testing"
+)
+
+// TestFuzzGenerate is not a test - it's a program that puts all tests pickles
+// from main tests into fuzz/corpus. It is implemented as test because we need
+// *_test.go files to be linked in to get to test data defined there.
+//
+// It is triggered to be run by go:generate from ogorek_test.go .
+func TestFuzzGenerate(t *testing.T) {
+	for i, test := range tests {
+		j := 0
+		for _, pickle := range test.picklev {
+			if pickle.err != nil {
+				continue
+			}
+			j++
+
+			err := ioutil.WriteFile(
+				fmt.Sprintf("fuzz/corpus/test-%d-%d.pickle", i, j),
+				[]byte(pickle.data), 0666)
+			if err != nil {
+				log.Fatal(err)
+			}
+		}
+	}
+}

ogorek_test.go

@@ -141,7 +141,15 @@ var (
 	P4_   = PP(        4)
 )
 
+// make sure we use test pickles in fuzz corpus
+//go:generate go test -tags gofuzz -run TestFuzzGenerate
+
 // tests is the main registry for decode/encode tests.
+//
+// NOTE whenever you change something here - don't forget to run `go generate`
+// to export test pickles to fuzzing corpus.
+// XXX or better instead of `go generate`, automatically dump all test pickles
+// on every `go test` run?
 var tests = []TestEntry{
 	X("None", None{},
 		P0_("N.")), // NONE