Adds test case four uri double encoding

diff --git a/tests/http-double-encoded-uri/README.md b/tests/http-double-encoded-uri/README.md
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+# Description
+
+Test http double encoded uri alert
+
+# PCAP
+
+The pcap comes from running
+`curl http://oisf.net/evil%2527sqli`

diff --git a/tests/http-double-encoded-uri/input.pcap b/tests/http-double-encoded-uri/input.pcap
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Binary files /dev/null and b/tests/http-double-encoded-uri/input.pcap differ

diff --git a/tests/http-double-encoded-uri/suricata.yaml b/tests/http-double-encoded-uri/suricata.yaml
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+%YAML 1.1
+---
+
+include: ../../etc/suricata-4.0.3.yaml
+
+app-layer:
+  protocols:
+    http:
+      libhtp:
+        default-config:
+          double-decode-path: yes
+          double-decode-query: yes

diff --git a/tests/http-double-encoded-uri/test.rules b/tests/http-double-encoded-uri/test.rules
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+alert http any any -> any any (msg:"SURICATA HTTP Request double encoded URI"; flow:established,to_server; app-layer-event:http.double_encoded_uri; flowint:http.anomaly.count,+,1; classtype:protocol-command-decode; sid:1; rev:1;)

diff --git a/tests/http-double-encoded-uri/test.yaml b/tests/http-double-encoded-uri/test.yaml
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+++ b/tests/http-double-encoded-uri/test.yaml
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+requires:
+  features:
+    - HAVE_LIBJANSSON
+  min-version: 5.0.0
+
+# disables checksum verification
+args:
+  - -k none
+
+checks:
+  - filter:
+      count: 1
+      match:
+        event_type: alert
+        alert.signature_id: 1