Move benchmark fixtures to testdata folder

diffmatchpatch/dmp_test.go

diff --git a/diffmatchpatch/dmp_test.go b/diffmatchpatch/dmp_test.go
index 99883bc..fe3a715 100644
--- a/diffmatchpatch/dmp_test.go
+++ b/diffmatchpatch/dmp_test.go
@@ -1531,8 +1531,8 @@
 }
 
 func Benchmark_DiffMainLarge(b *testing.B) {
-	s1 := readFile("speedtest1.txt", b)
-	s2 := readFile("speedtest2.txt", b)
+	s1 := readFile("../testdata/speedtest1.txt", b)
+	s2 := readFile("../testdata/speedtest2.txt", b)
 	dmp := New()
 	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
@@ -1541,8 +1541,8 @@
 }
 
 func Benchmark_DiffMainLargeLines(b *testing.B) {
-	s1 := readFile("speedtest1.txt", b)
-	s2 := readFile("speedtest2.txt", b)
+	s1 := readFile("../testdata/speedtest1.txt", b)
+	s2 := readFile("../testdata/speedtest2.txt", b)
 	dmp := New()
 	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
@@ -1553,8 +1553,8 @@
 }
 
 func Benchmark_DiffHalfMatch(b *testing.B) {
-	s1 := readFile("speedtest1.txt", b)
-	s2 := readFile("speedtest2.txt", b)
+	s1 := readFile("../testdata/speedtest1.txt", b)
+	s2 := readFile("../testdata/speedtest2.txt", b)
 	dmp := New()
 	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
@@ -1563,8 +1563,8 @@
 }
 
 func Benchmark_DiffCleanupSemantic(b *testing.B) {
-	s1 := readFile("speedtest1.txt", b)
-	s2 := readFile("speedtest2.txt", b)
+	s1 := readFile("../testdata/speedtest1.txt", b)
+	s2 := readFile("../testdata/speedtest2.txt", b)
 
 	dmp := New()
 

testdata/speedtest1.txt

diff --git a/diffmatchpatch/speedtest1.txt b/testdata/speedtest1.txt
similarity index 100%
rename from diffmatchpatch/speedtest1.txt
rename to testdata/speedtest1.txt

testdata/speedtest2.txt

diff --git a/diffmatchpatch/speedtest2.txt b/testdata/speedtest2.txt
similarity index 100%
rename from diffmatchpatch/speedtest2.txt
rename to testdata/speedtest2.txt