diff --git a/promql/fuzz-data/ParseMetric/corpus/exposition_formats_0 b/promql/fuzz-data/ParseMetric/corpus/exposition_formats_0
new file mode 100644
index 0000000000000000000000000000000000000000..405bb5131c841f034b4f67745c79afbb387bd7ce
--- /dev/null
+++ b/promql/fuzz-data/ParseMetric/corpus/exposition_formats_0
@@ -0,0 +1,3 @@
+# HELP api_http_request_count The total number of HTTP requests.
+# TYPE api_http_request_count counter
+http_request_count{method="post",code="200"} 1027 1395066363000
diff --git a/promql/fuzz-data/ParseMetric/corpus/exposition_formats_1 b/promql/fuzz-data/ParseMetric/corpus/exposition_formats_1
new file mode 100644
index 0000000000000000000000000000000000000000..76ede7fb69603510a88144f1c4a928ba8b2fa079
--- /dev/null
+++ b/promql/fuzz-data/ParseMetric/corpus/exposition_formats_1
@@ -0,0 +1 @@
+msdos_file_access_time_ms{path="C:\\DIR\\FILE.TXT",error="Cannot find file:\n\"FILE.TXT\""} 1.234e3
diff --git a/promql/fuzz-data/ParseMetric/corpus/exposition_formats_2 b/promql/fuzz-data/ParseMetric/corpus/exposition_formats_2
new file mode 100644
index 0000000000000000000000000000000000000000..64674abec98131984ecb69ab60e996a04ecafeab
--- /dev/null
+++ b/promql/fuzz-data/ParseMetric/corpus/exposition_formats_2
@@ -0,0 +1 @@
+metric_without_timestamp_and_labels 12.47
diff --git a/promql/fuzz-data/ParseMetric/corpus/exposition_formats_3 b/promql/fuzz-data/ParseMetric/corpus/exposition_formats_3
new file mode 100644
index 0000000000000000000000000000000000000000..6bb7e38838bbc6796e3fc9842bee42b58bbef980
--- /dev/null
+++ b/promql/fuzz-data/ParseMetric/corpus/exposition_formats_3
@@ -0,0 +1 @@
+something_weird{problem="division by zero"} +Inf -3982045
diff --git a/promql/fuzz-data/ParseMetric/corpus/exposition_formats_4 b/promql/fuzz-data/ParseMetric/corpus/exposition_formats_4
new file mode 100644
index 0000000000000000000000000000000000000000..47cd3366bcdfc31feed6fca53efd3de0359b969d
--- /dev/null
+++ b/promql/fuzz-data/ParseMetric/corpus/exposition_formats_4
@@ -0,0 +1 @@
+http_request_duration_seconds_bucket{le="+Inf"} 144320