diff --git a/tests/false-positives.csv b/tests/false-positives.csv
new file mode 100644
index 0000000..5991e1a
--- /dev/null
+++ b/tests/false-positives.csv
@@ -0,0 +1,5 @@
+url,white,black,comment
+https://support.apple.com,support.apple.com,,EdgeKey / AkamaiEdge
+https://www.pinterest.fr/,i.pinimg.com,,Cedexis
+https://www.pinterest.fr/,i.pinimg.com,,Cedexis
+https://www.tumblr.com/,66.media.tumblr.com,,ChiCDN
diff --git a/tests/first-party.csv b/tests/first-party.csv
new file mode 100644
index 0000000..eafe74d
--- /dev/null
+++ b/tests/first-party.csv
@@ -0,0 +1,4 @@
+url,white,black,comment
+https://www.red-by-sfr.fr/,static.s-sfr.fr,nrg.red-by-sfr.fr,Eulerian
+https://www.cbc.ca/,,smetrics.cbc.ca,2o7 | Ominuture | Adobe Experience Cloud
+https://www.discover.com/,,content.discover.com,ThreatMetrix