Add x509_crt_check_extended_key_usage()
diff --git a/tests/data_files/server5.eku-cli.crt b/tests/data_files/server5.eku-cli.crt
new file mode 100644
index 0000000..8aa2e44
--- /dev/null
+++ b/tests/data_files/server5.eku-cli.crt
@@ -0,0 +1,13 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/server5.eku-cs.crt b/tests/data_files/server5.eku-cs.crt
new file mode 100644
index 0000000..db97b40
--- /dev/null
+++ b/tests/data_files/server5.eku-cs.crt
@@ -0,0 +1,13 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/server5.eku-cs_any.crt b/tests/data_files/server5.eku-cs_any.crt
new file mode 100644
index 0000000..8fa8632
--- /dev/null
+++ b/tests/data_files/server5.eku-cs_any.crt
@@ -0,0 +1,13 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/server5.eku-srv.crt b/tests/data_files/server5.eku-srv.crt
new file mode 100644
index 0000000..64312f6
--- /dev/null
+++ b/tests/data_files/server5.eku-srv.crt
@@ -0,0 +1,13 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/tests/data_files/server5.eku-srv_cli.crt b/tests/data_files/server5.eku-srv_cli.crt
new file mode 100644
index 0000000..9f58fed
--- /dev/null
+++ b/tests/data_files/server5.eku-srv_cli.crt
@@ -0,0 +1,13 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----