update elements and fix some bugs

lib/src/prism/tests/languages/julia/string_feature.test

Index: lib/src/prism/tests/languages/julia/string_feature.test
diff --git a/lib/src/prism/tests/languages/julia/string_feature.test b/lib/src/prism/tests/languages/julia/string_feature.test
new file mode 100644
index 0000000000000000000000000000000000000000..207b3f4425a78ff81477bbea0120187ea64d93c7
--- /dev/null
+++ b/lib/src/prism/tests/languages/julia/string_feature.test
@@ -0,0 +1,29 @@
+""
+"fo\"o"
+'x'
+'\''
+'\u2200'
+"""foo"""
+"""fo"o
+bar"""
+'''foo'''
+'''fo'o
+bar'''
+
+----------------------------------------------------
+
+[
+	["string", "\"\""],
+	["string", "\"fo\\\"o\""],
+	["string", "'x'"],
+	["string", "'\\''"],
+	["string", "'\\u2200'"],
+	["string", "\"\"\"foo\"\"\""],
+	["string", "\"\"\"fo\"o\r\nbar\"\"\""],
+	["string", "'''foo'''"],
+	["string", "'''fo'o\r\nbar'''"]
+]
+
+----------------------------------------------------
+
+Checks for strings and characters.