diff --git a/src/context.rs b/src/context.rs
index 2079c79121..9a45770c9c 100644
--- a/src/context.rs
+++ b/src/context.rs
@@ -367,7 +367,7 @@ pub unsafe fn dc_set_config(
     }
     if strcmp(key, b"selfavatar\x00" as *const u8 as *const libc::c_char) == 0 && !value.is_null() {
         rel_path = dc_strdup(value);
-        if !(0 == dc_make_rel_and_copy(context, &mut rel_path)) {
+        if dc_make_rel_and_copy(context, &mut rel_path) {
             ret =
                 dc_sqlite3_set_config(context, &context.sql.clone().read().unwrap(), key, rel_path)
         }
diff --git a/src/dc_array.rs b/src/dc_array.rs
index be10d86ec2..a079dc03cc 100644
--- a/src/dc_array.rs
+++ b/src/dc_array.rs
@@ -404,6 +404,20 @@ mod tests {
     use super::*;
     use std::ffi::CStr;
 
+    #[test]
+    fn test_dc_arr_to_string() {
+        let arr2: [uint32_t; 4] = [
+            0i32 as uint32_t,
+            12i32 as uint32_t,
+            133i32 as uint32_t,
+            1999999i32 as uint32_t,
+        ];
+
+        let str_0 = unsafe { dc_arr_to_string(arr2.as_ptr(), 4i32) };
+        assert_eq!(to_string(str_0), "0,12,133,1999999");
+        unsafe { free(str_0 as *mut _) };
+    }
+
     #[test]
     fn test_dc_array() {
         unsafe {
@@ -491,5 +505,4 @@ mod tests {
             dc_array_unref(arr);
         }
     }
-
 }
diff --git a/src/dc_chat.rs b/src/dc_chat.rs
index 77f6aebbd7..4463b0a59f 100644
--- a/src/dc_chat.rs
+++ b/src/dc_chat.rs
@@ -443,7 +443,7 @@ unsafe fn prepare_msg_common<'a>(
                 (*msg).type_0 as libc::c_int,
             );
             current_block = 2171833246886114521;
-        } else if (*msg).state == 18i32 && 0 == dc_is_blobdir_path(context, pathNfilename) {
+        } else if (*msg).state == 18i32 && !dc_is_blobdir_path(context, pathNfilename) {
             dc_log_error(
                 context,
                 0i32,
@@ -451,7 +451,7 @@ unsafe fn prepare_msg_common<'a>(
                     as *const libc::c_char,
             );
             current_block = 2171833246886114521;
-        } else if 0 == dc_make_rel_and_copy(context, &mut pathNfilename) {
+        } else if !dc_make_rel_and_copy(context, &mut pathNfilename) {
             current_block = 2171833246886114521;
         } else {
             dc_param_set((*msg).param, 'f' as i32, pathNfilename);
@@ -1105,11 +1105,10 @@ unsafe fn set_draft_raw(context: &Context, chat_id: uint32_t, msg: *mut dc_msg_t
             pathNfilename = dc_param_get((*msg).param, 'f' as i32, 0 as *const libc::c_char);
             if pathNfilename.is_null() {
                 current_block = 14513523936503887211;
-            } else if 0 != dc_msg_is_increation(msg)
-                && 0 == dc_is_blobdir_path(context, pathNfilename)
+            } else if 0 != dc_msg_is_increation(msg) && !dc_is_blobdir_path(context, pathNfilename)
             {
                 current_block = 14513523936503887211;
-            } else if 0 == dc_make_rel_and_copy(context, &mut pathNfilename) {
+            } else if !dc_make_rel_and_copy(context, &mut pathNfilename) {
                 current_block = 14513523936503887211;
             } else {
                 dc_param_set((*msg).param, 'f' as i32, pathNfilename);
@@ -2068,7 +2067,7 @@ pub unsafe fn dc_set_chat_profile_image(
                 /* we shoud respect this - whatever we send to the group, it gets discarded anyway! */
                 if !new_image.is_null() {
                     new_image_rel = dc_strdup(new_image);
-                    if 0 == dc_make_rel_and_copy(context, &mut new_image_rel) {
+                    if !dc_make_rel_and_copy(context, &mut new_image_rel) {
                         current_block = 14766584022300871387;
                     } else {
                         current_block = 1856101646708284338;
diff --git a/src/dc_tools.rs b/src/dc_tools.rs
index 48fb75aa3a..aa7736a7b6 100644
--- a/src/dc_tools.rs
+++ b/src/dc_tools.rs
@@ -1386,15 +1386,9 @@ pub unsafe fn dc_get_fine_pathNfilename(
     ret
 }
 
-// TODO should return bool /rtn
-pub unsafe fn dc_is_blobdir_path(context: &Context, path: *const libc::c_char) -> libc::c_int {
-    if strncmp(path, context.get_blobdir(), strlen(context.get_blobdir())) == 0i32
-        || strncmp(path, b"$BLOBDIR\x00" as *const u8 as *const libc::c_char, 8) == 0i32
-    {
-        return 1i32;
-    }
-
-    0
+pub unsafe fn dc_is_blobdir_path(context: &Context, path: *const libc::c_char) -> bool {
+    (strncmp(path, context.get_blobdir(), strlen(context.get_blobdir())) == 0
+        || strncmp(path, b"$BLOBDIR\x00" as *const u8 as *const libc::c_char, 8) == 0)
 }
 
 pub unsafe fn dc_make_rel_path(context: &Context, path: *mut *mut libc::c_char) {
@@ -1410,15 +1404,14 @@ pub unsafe fn dc_make_rel_path(context: &Context, path: *mut *mut libc::c_char)
     };
 }
 
-// TODO should return bool /rtn
-pub unsafe fn dc_make_rel_and_copy(context: &Context, path: *mut *mut libc::c_char) -> libc::c_int {
-    let mut success: libc::c_int = 0i32;
+pub unsafe fn dc_make_rel_and_copy(context: &Context, path: *mut *mut libc::c_char) -> bool {
+    let mut success: bool = false;
     let mut filename: *mut libc::c_char = 0 as *mut libc::c_char;
     let mut blobdir_path: *mut libc::c_char = 0 as *mut libc::c_char;
     if !(path.is_null() || (*path).is_null()) {
-        if 0 != dc_is_blobdir_path(context, *path) {
+        if dc_is_blobdir_path(context, *path) {
             dc_make_rel_path(context, path);
-            success = 1i32
+            success = true;
         } else {
             filename = dc_get_filename(*path);
             if !(filename.is_null()
@@ -1436,7 +1429,7 @@ pub unsafe fn dc_make_rel_and_copy(context: &Context, path: *mut *mut libc::c_ch
                 *path = blobdir_path;
                 blobdir_path = 0 as *mut libc::c_char;
                 dc_make_rel_path(context, path);
-                success = 1i32
+                success = true;
             }
         }
     }
diff --git a/tests/fixtures/delta-logo.png b/tests/fixtures/delta-logo.png
new file mode 100644
index 0000000000..9408ad90b4
Binary files /dev/null and b/tests/fixtures/delta-logo.png differ
diff --git a/tests/stress.rs b/tests/stress.rs
index cb245e21e5..1e4181a464 100644
--- a/tests/stress.rs
+++ b/tests/stress.rs
@@ -1,7 +1,9 @@
 //! Stress some functions for testing; if used as a lib, this file is obsolete.
 
 use std::collections::HashSet;
-use std::ffi::{CStr, CString};
+use std::env::current_dir;
+use std::ffi::CString;
+use std::path::PathBuf;
 
 use mmime::mailimf_types::*;
 use tempfile::{tempdir, TempDir};
@@ -121,21 +123,15 @@ unsafe fn stress_functions(context: &Context) {
             context.get_blobdir(),
             b"foobar\x00" as *const u8 as *const libc::c_char,
         );
-        assert_ne!(0, dc_is_blobdir_path(context, abs_path));
-        assert_ne!(
-            0,
-            dc_is_blobdir_path(
-                context,
-                b"$BLOBDIR/fofo\x00" as *const u8 as *const libc::c_char,
-            )
-        );
-        assert_eq!(
-            0,
-            dc_is_blobdir_path(
-                context,
-                b"/BLOBDIR/fofo\x00" as *const u8 as *const libc::c_char,
-            )
-        );
+        assert!(dc_is_blobdir_path(context, abs_path));
+        assert!(dc_is_blobdir_path(
+            context,
+            b"$BLOBDIR/fofo\x00" as *const u8 as *const libc::c_char,
+        ));
+        assert!(!dc_is_blobdir_path(
+            context,
+            b"/BLOBDIR/fofo\x00" as *const u8 as *const libc::c_char,
+        ));
         assert_ne!(0, dc_file_exist(context, abs_path));
         free(abs_path as *mut libc::c_void);
         assert_ne!(
@@ -946,23 +942,60 @@ fn test_dc_get_oauth2_token() {
 }
 
 #[test]
-fn test_stress_tests() {
+fn test_dc_get_abs_path() {
+    let ctx = unsafe { create_test_context() };
+
+    let blobdir_c = unsafe { dc_get_blobdir(&ctx.ctx) };
+    let mut image_path = PathBuf::from(to_string(blobdir_c));
+    image_path.push("image.png");
+
+    let mut image_path_2 = PathBuf::from("$BLOBDIR");
+    image_path_2.push("image.png");
+
+    let image_c = CString::new(image_path_2.to_str().unwrap()).unwrap();
+    let abs_path = unsafe { dc_get_abs_path(&ctx.ctx, image_c.as_ptr()) };
+
+    assert_eq!(to_string(abs_path), image_path.to_str().unwrap());
+}
+
+#[test]
+fn test_selfavatar_config() {
+    let ctx = unsafe { create_test_context() };
+
+    let mut logo_path = current_dir().unwrap();
+    logo_path.push("tests");
+    logo_path.push("fixtures");
+    logo_path.push("delta-logo.png");
+    assert!(logo_path.as_path().exists());
+
+    let logo_path_c = CString::new(logo_path.to_str().unwrap()).unwrap();
     unsafe {
-        let context = create_test_context();
-        stress_functions(&context.ctx);
+        dc_set_config(
+            &ctx.ctx,
+            b"selfavatar\x00" as *const u8 as *const libc::c_char,
+            logo_path_c.as_ptr(),
+        );
     }
+
+    let selfavatar = unsafe {
+        dc_get_config(
+            &ctx.ctx,
+            b"selfavatar\x00" as *const u8 as *const libc::c_char,
+        )
+    };
+
+    let blobdir_c = unsafe { dc_get_blobdir(&ctx.ctx) };
+    let mut image_path = PathBuf::from(to_string(blobdir_c));
+    image_path.push("delta-logo.png");
+
+    assert!(image_path.as_path().exists());
+    assert_eq!(to_string(selfavatar), image_path.to_str().unwrap());
 }
 
 #[test]
-fn test_arr_to_string() {
-    let arr2: [uint32_t; 4] = [
-        0i32 as uint32_t,
-        12i32 as uint32_t,
-        133i32 as uint32_t,
-        1999999i32 as uint32_t,
-    ];
-
-    let str_0 = unsafe { dc_arr_to_string(arr2.as_ptr(), 4i32) };
-    assert_eq!(to_string(str_0), "0,12,133,1999999");
-    unsafe { free(str_0 as *mut _) };
+fn test_stress_tests() {
+    unsafe {
+        let context = create_test_context();
+        stress_functions(&context.ctx);
+    }
 }