diff --git a/tests/data_files/dir4/Readme b/tests/data_files/dir4/Readme
new file mode 100644
index 0000000..5732a64
--- /dev/null
+++ b/tests/data_files/dir4/Readme
@@ -0,0 +1,38 @@
+This directory contains the certificates for the tests targeting the enforcement of the policy indicated by the *pathLenConstraint* field. All leaf elements were generated with *is_ca* unset and all roots with the *selfsign=1* option. 
+
+1. zero pathlen constraint on an intermediate CA (invalid)
+```
+cert11.crt -> cert12.crt (max_pathlen=0) -> cert13.crt -> cert14.crt
+```
+
+2. zero pathlen constraint on the root CA (invalid)
+```
+cert21.crt (max_pathlen=0) -> cert22.crt -> cert23.crt
+```
+
+3. nonzero pathlen constraint on the root CA (invalid)
+```
+cert31.crt (max_pathlen=1) -> cert32.crt -> cert33.crt -> cert34.crt
+```
+
+4. nonzero pathlen constraint on an intermediate CA (invalid)
+```
+cert41.crt -> cert42.crt (max_pathlen=1) -> cert43.crt -> cert44.crt -> cert45.crt 
+```
+
+5. nonzero pathlen constraint on an intermediate CA with maximum number of elements in the chain (valid)
+```
+cert51.crt -> cert52.crt (max_pathlen=1) -> cert53.crt -> cert54.crt
+```
+
+6. nonzero pathlen constraint on the root CA with maximum number of elements in the chain (valid)
+```
+cert61.crt (max_pathlen=1) -> cert62.crt -> cert63.crt
+```
+
+7. pathlen constraint on the root CA with maximum number of elements and a self signed certificate in the chain (valid) 
+(This situation happens for example when a root of some hierarchy gets integrated into another hierarchy. In this case the certificates issued before the integration will have an intermadiate self signed certificate in their chain)
+```
+cert71.crt (max_pathlen=1) -> cert72.crt -> cert73.crt (self signed) -> cert74.crt -> cert74.crt
+```
+
diff --git a/tests/data_files/dir4/cert21.crt b/tests/data_files/dir4/cert21.crt
new file mode 100644
index 0000000..501c5d7
--- /dev/null
+++ b/tests/data_files/dir4/cert21.crt
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----
+MIIC+jCCAeKgAwIBAgIBATANBgkqhkiG9w0BAQsFADAWMRQwEgYDVQQDEwtUZXN0
+IHJvb3QgMjAeFw0wMTAxMDEwMDAwMDBaFw0zMDEyMzEyMzU5NTlaMBYxFDASBgNV
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+sz940Q4njAJqlpfiJ44aFytjp96uN4YVpViFCvRz//9uyQY9kuA/8kKwJuO3qw==
+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert22.crt b/tests/data_files/dir4/cert22.crt
new file mode 100644
index 0000000..5dcd65d
--- /dev/null
+++ b/tests/data_files/dir4/cert22.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDBzCCAe+gAwIBAgIBATANBgkqhkiG9w0BAQsFADAWMRQwEgYDVQQDEwtUZXN0
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+5m5YpRsknaICjYs=
+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert23.crt b/tests/data_files/dir4/cert23.crt
new file mode 100644
index 0000000..6c54725
--- /dev/null
+++ b/tests/data_files/dir4/cert23.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDDDCCAfSgAwIBAgIBATANBgkqhkiG9w0BAQsFADAmMSQwIgYDVQQDExtUZXN0
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+WVf02pylKRgqayOujH3PWA==
+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert31.crt b/tests/data_files/dir4/cert31.crt
new file mode 100644
index 0000000..8c2af4c
--- /dev/null
+++ b/tests/data_files/dir4/cert31.crt
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----
+MIIC+jCCAeKgAwIBAgIBATANBgkqhkiG9w0BAQsFADAWMRQwEgYDVQQDEwtUZXN0
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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert32.crt b/tests/data_files/dir4/cert32.crt
new file mode 100644
index 0000000..5dcd65d
--- /dev/null
+++ b/tests/data_files/dir4/cert32.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
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+5m5YpRsknaICjYs=
+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert33.crt b/tests/data_files/dir4/cert33.crt
new file mode 100644
index 0000000..8e5d192
--- /dev/null
+++ b/tests/data_files/dir4/cert33.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert34.crt b/tests/data_files/dir4/cert34.crt
new file mode 100644
index 0000000..bebcb65
--- /dev/null
+++ b/tests/data_files/dir4/cert34.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert41.crt b/tests/data_files/dir4/cert41.crt
new file mode 100644
index 0000000..7065c94
--- /dev/null
+++ b/tests/data_files/dir4/cert41.crt
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert42.crt b/tests/data_files/dir4/cert42.crt
new file mode 100644
index 0000000..c071318
--- /dev/null
+++ b/tests/data_files/dir4/cert42.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/tests/data_files/dir4/cert43.crt b/tests/data_files/dir4/cert43.crt
new file mode 100644
index 0000000..8e5d192
--- /dev/null
+++ b/tests/data_files/dir4/cert43.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/tests/data_files/dir4/cert44.crt b/tests/data_files/dir4/cert44.crt
new file mode 100644
index 0000000..084fb2d
--- /dev/null
+++ b/tests/data_files/dir4/cert44.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/tests/data_files/dir4/cert45.crt b/tests/data_files/dir4/cert45.crt
new file mode 100644
index 0000000..e5d5b3d
--- /dev/null
+++ b/tests/data_files/dir4/cert45.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/tests/data_files/dir4/cert51.crt b/tests/data_files/dir4/cert51.crt
new file mode 100644
index 0000000..7065c94
--- /dev/null
+++ b/tests/data_files/dir4/cert51.crt
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/tests/data_files/dir4/cert52.crt b/tests/data_files/dir4/cert52.crt
new file mode 100644
index 0000000..c071318
--- /dev/null
+++ b/tests/data_files/dir4/cert52.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/tests/data_files/dir4/cert53.crt b/tests/data_files/dir4/cert53.crt
new file mode 100644
index 0000000..8e5d192
--- /dev/null
+++ b/tests/data_files/dir4/cert53.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/tests/data_files/dir4/cert54.crt b/tests/data_files/dir4/cert54.crt
new file mode 100644
index 0000000..e42e14f
--- /dev/null
+++ b/tests/data_files/dir4/cert54.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
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diff --git a/tests/data_files/dir4/cert61.crt b/tests/data_files/dir4/cert61.crt
new file mode 100644
index 0000000..8c2af4c
--- /dev/null
+++ b/tests/data_files/dir4/cert61.crt
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert62.crt b/tests/data_files/dir4/cert62.crt
new file mode 100644
index 0000000..5dcd65d
--- /dev/null
+++ b/tests/data_files/dir4/cert62.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDBzCCAe+gAwIBAgIBATANBgkqhkiG9w0BAQsFADAWMRQwEgYDVQQDEwtUZXN0
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+5m5YpRsknaICjYs=
+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert63.crt b/tests/data_files/dir4/cert63.crt
new file mode 100644
index 0000000..ffa90e4
--- /dev/null
+++ b/tests/data_files/dir4/cert63.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDCjCCAfKgAwIBAgIBATANBgkqhkiG9w0BAQsFADAmMSQwIgYDVQQDExtUZXN0
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+VEyxyevfwivF4EQ70Jw=
+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert71.crt b/tests/data_files/dir4/cert71.crt
new file mode 100644
index 0000000..8c2af4c
--- /dev/null
+++ b/tests/data_files/dir4/cert71.crt
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----
+MIIC+jCCAeKgAwIBAgIBATANBgkqhkiG9w0BAQsFADAWMRQwEgYDVQQDEwtUZXN0
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+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert72.crt b/tests/data_files/dir4/cert72.crt
new file mode 100644
index 0000000..5dcd65d
--- /dev/null
+++ b/tests/data_files/dir4/cert72.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDBzCCAe+gAwIBAgIBATANBgkqhkiG9w0BAQsFADAWMRQwEgYDVQQDEwtUZXN0
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+5m5YpRsknaICjYs=
+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert73.crt b/tests/data_files/dir4/cert73.crt
new file mode 100644
index 0000000..6854c74
--- /dev/null
+++ b/tests/data_files/dir4/cert73.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDFzCCAf+gAwIBAgIBATANBgkqhkiG9w0BAQsFADAmMSQwIgYDVQQDExtUZXN0
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+GU8qhRmoQer7mLUzpb3s8mq/4rZx+alTQ3gu
+-----END CERTIFICATE-----
diff --git a/tests/data_files/dir4/cert74.crt b/tests/data_files/dir4/cert74.crt
new file mode 100644
index 0000000..920c4c2
--- /dev/null
+++ b/tests/data_files/dir4/cert74.crt
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDCjCCAfKgAwIBAgIBATANBgkqhkiG9w0BAQsFADAmMSQwIgYDVQQDExtUZXN0
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+ETGOumNQ51IJLUpq+hc=
+-----END CERTIFICATE-----
diff --git a/tests/suites/test_suite_x509parse.data b/tests/suites/test_suite_x509parse.data
index 5a69ecd..bfd084c 100644
--- a/tests/suites/test_suite_x509parse.data
+++ b/tests/suites/test_suite_x509parse.data
@@ -1128,10 +1128,38 @@
 depends_on:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_SHA256_C:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP384R1_ENABLED
 mbedtls_x509_crt_parse_path:"data_files/dir3":1:2
 
-X509 CRT verify path (4 certs)
+X509 CRT verify chain #1 (zero pathlen intermediate)
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C
 mbedtls_x509_crt_verify_chain:"data_files/dir4/cert14.crt data_files/dir4/cert13.crt data_files/dir4/cert12.crt":"data_files/dir4/cert11.crt":8
 
+X509 CRT verify chain #2 (zero pathlen root)
+depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C
+mbedtls_x509_crt_verify_chain:"data_files/dir4/cert23.crt data_files/dir4/cert22.crt":"data_files/dir4/cert21.crt":8
+
+X509 CRT verify chain #3 (nonzero pathlen root)
+depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C
+mbedtls_x509_crt_verify_chain:"data_files/dir4/cert34.crt data_files/dir4/cert33.crt data_files/dir4/cert32.crt":"data_files/dir4/cert31.crt":8
+
+X509 CRT verify chain #4 (nonzero pathlen intermediate)
+depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C
+mbedtls_x509_crt_verify_chain:"data_files/dir4/cert45.crt data_files/dir4/cert44.crt data_files/dir4/cert43.crt data_files/dir4/cert42.crt":"data_files/dir4/cert41.crt":8
+
+X509 CRT verify chain #5 (nonzero maxpathlen intermediate)
+depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C
+mbedtls_x509_crt_verify_chain:"data_files/dir4/cert54.crt data_files/dir4/cert53.crt data_files/dir4/cert52.crt":"data_files/dir4/cert51.crt":0
+
+X509 CRT verify chain #6 (nonzero maxpathlen root)
+depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C
+mbedtls_x509_crt_verify_chain:"data_files/dir4/cert63.crt data_files/dir4/cert62.crt":"data_files/dir4/cert61.crt":0
+
+X509 CRT verify chain #7 (maxpathlen root, self signed in path)
+depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C
+mbedtls_x509_crt_verify_chain:"data_files/dir4/cert74.crt data_files/dir4/cert73.crt data_files/dir4/cert72.crt":"data_files/dir4/cert71.crt":0
+
+X509 CRT verify chain #8 (self signed maxpathlen root)
+depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C
+mbedtls_x509_crt_verify_chain:"data_files/dir4/cert61.crt data_files/dir4/cert63.crt data_files/dir4/cert62.crt":"data_files/dir4/cert61.crt":0
+
 X509 OID description #1
 x509_oid_desc:"2B06010505070301":"TLS Web Server Authentication"
 
diff --git a/tests/suites/test_suite_x509parse.function b/tests/suites/test_suite_x509parse.function
index f0da0b3..49285f5 100644
--- a/tests/suites/test_suite_x509parse.function
+++ b/tests/suites/test_suite_x509parse.function
@@ -445,13 +445,15 @@
 /* END_CASE */
 
 /* BEGIN_CASE depends_on:MBEDTLS_FS_IO:MBEDTLS_X509_CRT_PARSE_C */
-void mbedtls_x509_crt_verify_chain(  char *chain_paths, char *trusted_ca, int ret )
+void mbedtls_x509_crt_verify_chain(  char *chain_paths, char *trusted_ca, int flags_result )
 {
     char* act;
     uint32_t flags;
-    int res;
+    int result, res;
     mbedtls_x509_crt trusted, chain; 
 
+    result= flags_result?MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:0;
+
     mbedtls_x509_crt_init( &chain );
     mbedtls_x509_crt_init( &trusted );
 
@@ -460,8 +462,9 @@
     TEST_ASSERT( mbedtls_x509_crt_parse_file( &trusted, trusted_ca ) == 0 ); 
 
     res = mbedtls_x509_crt_verify( &chain, &trusted, NULL, NULL, &flags, NULL, NULL );
-    
-    TEST_ASSERT( ret == res );
+
+    TEST_ASSERT( res == ( result ) );
+    TEST_ASSERT( flags == (uint32_t)( flags_result ) );
 
 exit:
     mbedtls_x509_crt_free( &trusted );