diff --git a/.travis.yml b/.travis.yml
index 04d3ba9..cb5cef5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,9 @@
 language: d
 sudo: false
 
+before_install:
+    - sudo apt-get install jq
+
 matrix:
   include:
     - d: dmd-2.064.2
diff --git a/source/dub/dub.d b/source/dub/dub.d
index 77abea4..31eb84e 100644
--- a/source/dub/dub.d
+++ b/source/dub/dub.d
@@ -422,27 +422,22 @@
 		write(dst.toPrettyString());
 	}
 
-	private void listPaths(string methodName)(BuildPlatform platform, string config)
+	void listImportPaths(BuildPlatform platform, string config)
 	{
-		string[] importPaths;
-
-		__traits(getMember, m_project, methodName)(importPaths, platform, config);
-
 		import std.stdio;
 
-		foreach(path; importPaths) {
+		foreach(path; m_project.listImportPaths(platform, config)) {
 			writeln(path);
 		}
 	}
 
-	void listImportPaths(BuildPlatform platform, string config)
-	{
-		listPaths!"listImportPaths"(platform, config);
-	}
-
 	void listStringImportPaths(BuildPlatform platform, string config)
 	{
-		listPaths!"listStringImportPaths"(platform, config);
+		import std.stdio;
+
+		foreach(path; m_project.listStringImportPaths(platform, config)) {
+			writeln(path);
+		}
 	}
 
 	/// Cleans intermediate/cache files of the given package
diff --git a/source/dub/project.d b/source/dub/project.d
index a5bb2cc..34b0dc6 100644
--- a/source/dub/project.d
+++ b/source/dub/project.d
@@ -582,11 +582,13 @@
 		}
 	}
 
-	private void listPaths(string attributeName)(ref string[] list, BuildPlatform platform, string config)
+	private string[] listPaths(string attributeName)(BuildPlatform platform, string config)
 	{
+		import std.path : buildPath, dirSeparator;
+
 		auto configs = getPackageConfigs(platform, config);
 
-		import std.path : buildPath, dirSeparator;
+		string[] list;
 
 		auto fullPackagePaths(Package pack) {
 			// Return full paths for the import paths, making sure a
@@ -605,19 +607,20 @@
 				list ~= path;
 			}
 		}
+
+		return list;
 	}
 
 	/// Outputs the import paths for the project, including its dependencies.
-	void listImportPaths(ref string[] list, BuildPlatform platform, string config)
+	string [] listImportPaths(BuildPlatform platform, string config)
 	{
-		listPaths!"importPaths"(list, platform, config);
-
+		return listPaths!"importPaths"(platform, config);
 	}
 
 	/// Outputs the string import paths for the project, including its dependencies.
-	void listStringImportPaths(ref string[] list, BuildPlatform platform, string config)
+	string[] listStringImportPaths(BuildPlatform platform, string config)
 	{
-		listPaths!"stringImportPaths"(list, platform, config);
+		return listPaths!"stringImportPaths"(platform, config);
 	}
 
 	void saveSelections()
diff --git a/test/4-describe-import-paths.sh b/test/4-describe-import-paths.sh
index 19e66f9..b896daf 100755
--- a/test/4-describe-import-paths.sh
+++ b/test/4-describe-import-paths.sh
@@ -1,5 +1,7 @@
 #!/bin/bash
 
+set -e -o pipefail
+
 cd "$CURR_DIR"/describe-project
 
 temp_file=`mktemp`
@@ -8,10 +10,9 @@
     rm $temp_file
 }
 
-$DUB describe --compiler=$COMPILER --import-paths > "$temp_file"
+trap cleanup EXIT
 
-if (( $? )); then
-    cleanup
+if ! $DUB describe --compiler=$COMPILER --import-paths > "$temp_file"; then
     die 'Printing import paths failed!'
 fi
 
@@ -21,9 +22,6 @@
 echo "$CURR_DIR/describe-dependency-2/some-path/" >> "$CURR_DIR/expected-import-path-output"
 
 if ! diff "$CURR_DIR"/expected-import-path-output "$temp_file"; then
-    cleanup
     die 'The import paths did not match the expected output!'
 fi
 
-cleanup
-exit 0
diff --git a/test/4-describe-json.sh b/test/4-describe-json.sh
index 254ac84..2969635 100755
--- a/test/4-describe-json.sh
+++ b/test/4-describe-json.sh
@@ -1,11 +1,34 @@
 #!/bin/bash
 
+set -e -o pipefail
+
 cd "$CURR_DIR"/describe-project
 
-$DUB describe --compiler=$COMPILER > /dev/null
+temp_file=`mktemp`
 
-if (( $? )); then
+function cleanup {
+    rm $temp_file
+}
+
+trap cleanup EXIT
+
+if ! $DUB describe --compiler=$COMPILER > "$temp_file"; then
     die 'Printing describe JSON failed!'
 fi
 
-exit 0
+declare -A expr_map
+
+expr_map[description]='A test describe project'
+expr_map[name]='describe-project'
+expr_map[targetType]='sourceLibrary'
+expr_map['authors[0]']='nobody'
+
+for expression in "${!expr_map[@]}"; do
+    expected="${expr_map[$expression]}"
+
+    actual=`jq --raw-output '.packages[0].'"$expression" "$temp_file"`
+
+    if [[ "$actual" != "$expected" ]]; then
+        die "The value for $expression was wrong in the describe output!"
+    fi
+done
diff --git a/test/4-describe-string-importh-paths.sh b/test/4-describe-string-importh-paths.sh
index 184b9ad..790af85 100755
--- a/test/4-describe-string-importh-paths.sh
+++ b/test/4-describe-string-importh-paths.sh
@@ -1,5 +1,7 @@
 #!/bin/bash
 
+set -e -o pipefail
+
 cd "$CURR_DIR"/describe-project
 
 temp_file=`mktemp`
@@ -8,10 +10,9 @@
     rm $temp_file
 }
 
-$DUB describe --compiler=$COMPILER --string-import-paths > "$temp_file"
+trap cleanup EXIT
 
-if (( $? )); then
-    cleanup
+if ! $DUB describe --compiler=$COMPILER --string-import-paths > "$temp_file"; then
     die 'Printing string import paths failed!'
 fi
 
@@ -20,10 +21,6 @@
 echo "$CURR_DIR/describe-dependency-2/some-extra-string-import-path/" >> "$CURR_DIR/expected-string-import-path-output"
 
 if ! diff "$CURR_DIR"/expected-string-import-path-output "$temp_file"; then
-    cleanup
     die 'The string import paths did not match the expected output!'
 fi
 
-cleanup
-exit 0
-