1 files changed, 76 insertions, 0 deletions
diff --git a/tests/fuzz/profile/remembering.go b/tests/fuzz/profile/remembering.go
new file mode 100644
index 0000000..aab4ac4
--- /dev/null
+++ b/tests/fuzz/profile/remembering.go
@@ -0,0 +1,76 @@
+package remembering
+
+import (
+	"os"
+	"reflect"
+	"strings"
+	"testing"
+	"testing/internal/testdeps"
+)
+
+
+
+func fn(f *testing.F) {
+	f.Add("0 profile a\n1 profile b\n", "c\nd", "a")
+	f.Add("", "x", "x")
+	f.Fuzz(func(
+		t *testing.T,
+		content string,
+		input string,
+		choice string,
+	) {
+		profile := parseProfile(content)
+		again := parseProfile(serializeProfile(profile))
+		if !reflect.DeepEqual(again, profile) {
+			t.Fatalf(
+				"roundtrip: %#v != %#v",
+				again, profile,
+			)
+		}
+
+		if choice == "" ||
+			strings.Contains(choice, "\n") {
+			return
+		}
+		lines := splitLines(input)
+		next := nextProfile(profile, lines, choice)
+
+		found := false
+		for _, entry := range next {
+			if entry.text == choice {
+				found = true
+			}
+		}
+		if !found {
+			t.Fatalf(
+				"pick %q not learnt in %#v",
+				choice, next,
+			)
+		}
+
+		reNext := parseProfile(serializeProfile(next))
+		if !reflect.DeepEqual(reNext, next) {
+			t.Fatalf(
+				"next roundtrip: %#v != %#v",
+				reNext, next,
+			)
+		}
+	})
+}
+
+
+
+func MainTest() {
+	fuzzTargets := []testing.InternalFuzzTarget{
+		{"fn", fn},
+	}
+
+	deps := testdeps.TestDeps{}
+	tests      := []testing.InternalTest     {}
+	benchmarks := []testing.InternalBenchmark{}
+	examples   := []testing.InternalExample  {}
+	m := testing.MainStart(
+		deps, tests, benchmarks, fuzzTargets, examples,
+	)
+	os.Exit(m.Run())
+}