diff --git a/test/cli-tests/no_reinstall_test.sh b/test/cli-tests/no_reinstall_test.sh
index 8dfd1142..124ce1cc 100755
--- a/test/cli-tests/no_reinstall_test.sh
+++ b/test/cli-tests/no_reinstall_test.sh
@@ -2,7 +2,7 @@
 
 . ./test/helper.sh
 
-test_install_dir="$test_fixtures_dir/install_dir"
+test_install_dir="$test_fixtures_dir/no_reinstall_test"
 
 function setUp()
 {
@@ -22,7 +22,7 @@ function test_no_reinstall_when_ruby_executable_exists()
 
 function tearDown()
 {
-	rm -r "$test_install_dir"
+	rm -rf "$test_install_dir"
 }
 
 SHUNIT_PARENT=$0 . $SHUNIT2
diff --git a/test/functions-tests/apply_patches_test.sh b/test/functions-tests/apply_patches_test.sh
index bda0c617..17139d07 100755
--- a/test/functions-tests/apply_patches_test.sh
+++ b/test/functions-tests/apply_patches_test.sh
@@ -3,7 +3,7 @@
 . ./test/helper.sh
 . ./share/ruby-install/functions.sh
 
-src_dir="$test_fixtures_dir/src"
+src_dir="$test_fixtures_dir/apply_patches_test"
 ruby_dir_name="ruby-1.9.3-p448"
 patches=("$src_dir/$ruby_dir_name/falcon-gc.diff")
 
@@ -30,7 +30,7 @@ function test_apply_patches()
 
 function tearDown()
 {
-	rm -r "$src_dir/$ruby_dir_name"
+	rm -rf "$src_dir"
 }
 
 SHUNIT_PARENT=$0 . $SHUNIT2
diff --git a/test/functions-tests/download_patches_test.sh b/test/functions-tests/download_patches_test.sh
index fd804239..3b273adb 100755
--- a/test/functions-tests/download_patches_test.sh
+++ b/test/functions-tests/download_patches_test.sh
@@ -3,6 +3,8 @@
 . ./test/helper.sh
 . ./share/ruby-install/functions.sh
 
+src_dir="$test_fixtures_dir/download_patches_test"
+
 patches=("https://gist.github.com/funny-falcon/2981959/raw/ary-queue.diff" "local.patch")
 ruby_dir_name="ruby-1.9.3-p448"
 
@@ -17,13 +19,16 @@ function test_download_patches()
 
 	assertTrue "did not download patches to \$src_dir/\$ruby_dir_name" \
 		   '[[ -f "$src_dir/$ruby_dir_name/ary-queue.diff" ]]'
+
 	assertEquals "did not update \$patches" \
 		     "${patches[0]}" "$src_dir/$ruby_dir_name/ary-queue.diff"
+
+	ls "$src_dir/$ruby_dir_name"
 }
 
 function tearDown()
 {
-	rm -r "$src_dir/$ruby_dir_name"
+	rm -rf "$src_dir"
 }
 
 SHUNIT_PARENT=$0 . $SHUNIT2
diff --git a/test/ruby-versions-tests/download_ruby_versions_file_test.sh b/test/ruby-versions-tests/download_ruby_versions_file_test.sh
index b5cca309..d3fde5c2 100755
--- a/test/ruby-versions-tests/download_ruby_versions_file_test.sh
+++ b/test/ruby-versions-tests/download_ruby_versions_file_test.sh
@@ -3,8 +3,11 @@
 . ./test/helper.sh
 . ./share/ruby-install/ruby-versions.sh
 
+ruby_install_cache_dir="$test_fixtures_dir/download_ruby_versions_file_test"
+
 ruby="ruby"
 file="stable.txt"
+
 expected_path="$ruby_install_cache_dir/$ruby/$file"
 
 function test_download_ruby_versions_file_with_no_parent_dir()
@@ -42,7 +45,7 @@ function test_download_ruby_versions_file_with_existing_file()
 
 function tearDown()
 {
-	rm -rf "$ruby_install_cache_dir/$ruby"
+	rm -rf "$ruby_install_cache_dir"
 }
 
 SHUNIT_PARENT=$0 . $SHUNIT2
diff --git a/test/util-tests/fetch_test.sh b/test/util-tests/fetch_test.sh
index 1d6daf00..d778db20 100755
--- a/test/util-tests/fetch_test.sh
+++ b/test/util-tests/fetch_test.sh
@@ -2,7 +2,7 @@
 
 . ./test/helper.sh
 
-ruby_install_dir="$test_fixtures_dir/fetch"
+ruby_install_dir="$test_fixtures_dir/fetch_test"
 
 test_file="$ruby_install_dir/db.txt"
 
@@ -61,7 +61,7 @@ function test_fetch_with_unknown_key()
 
 function tearDown()
 {
-	rm -r "$ruby_install_dir"
+	rm -rf "$ruby_install_dir"
 }
 
 SHUNIT_PARENT=$0 . $SHUNIT2