diff --git a/src/parse/args.rs b/src/parse/args.rs
index da5b0c7..0e7dbc8 100644
--- a/src/parse/args.rs
+++ b/src/parse/args.rs
@@ -270,7 +270,7 @@ impl<'a> Parser<'a> {
             self.whitespace();
 
             if self.toks.peek().is_none() {
-                return Ok(CallArgs(args, span));
+                return Err(("expected \")\".", span).into());
             }
         }
     }
diff --git a/src/parse/ident.rs b/src/parse/ident.rs
index 9be64c4..eab65c0 100644
--- a/src/parse/ident.rs
+++ b/src/parse/ident.rs
@@ -80,7 +80,7 @@ impl<'a> Parser<'a> {
         let mut value = 0;
         let first = match self.toks.peek() {
             Some(t) => t,
-            None => return Ok(String::new()),
+            None => return Err(("Expected expression.", self.span_before).into()),
         };
         let mut span = first.pos();
         if first.kind == '\n' {
@@ -252,8 +252,18 @@ impl<'a> Parser<'a> {
         while let Some(tok) = self.toks.next() {
             span = span.merge(tok.pos());
             match tok.kind {
-                '"' if q == '"' => break,
-                '\'' if q == '\'' => break,
+                '"' if q == '"' => {
+                    return Ok(Spanned {
+                        node: Value::String(s, QuoteKind::Quoted),
+                        span,
+                    })
+                }
+                '\'' if q == '\'' => {
+                    return Ok(Spanned {
+                        node: Value::String(s, QuoteKind::Quoted),
+                        span,
+                    })
+                }
                 '#' => {
                     if let Some(Token { kind: '{', pos }) = self.toks.peek() {
                         self.span_before = self.span_before.merge(*pos);
@@ -318,9 +328,6 @@ impl<'a> Parser<'a> {
                 _ => s.push(tok.kind),
             }
         }
-        Ok(Spanned {
-            node: Value::String(s, QuoteKind::Quoted),
-            span,
-        })
+        Err((format!("Expected {}.", q), span).into())
     }
 }
diff --git a/src/parse/mod.rs b/src/parse/mod.rs
index b0d3578..33f6907 100644
--- a/src/parse/mod.rs
+++ b/src/parse/mod.rs
@@ -144,11 +144,10 @@ impl<'a> Parser<'a> {
                             }
                         }
                         AtRuleKind::Error => {
-                            let toks = read_until_semicolon_or_closing_curly_brace(self.toks)?;
                             let Spanned {
                                 node: message,
                                 span,
-                            } = self.parse_value_from_vec(toks)?;
+                            } = self.parse_value()?;
 
                             return Err((
                                 message.inspect(span)?.to_string(),
@@ -157,11 +156,10 @@ impl<'a> Parser<'a> {
                                 .into());
                         }
                         AtRuleKind::Warn => {
-                            let toks = read_until_semicolon_or_closing_curly_brace(self.toks)?;
                             let Spanned {
                                 node: message,
                                 span,
-                            } = self.parse_value_from_vec(toks)?;
+                            } = self.parse_value()?;
                             span.merge(kind_string.span);
                             if let Some(Token { kind: ';', pos }) = self.toks.peek() {
                                 kind_string.span.merge(*pos);
@@ -173,11 +171,10 @@ impl<'a> Parser<'a> {
                             })
                         }
                         AtRuleKind::Debug => {
-                            let toks = read_until_semicolon_or_closing_curly_brace(self.toks)?;
                             let Spanned {
                                 node: message,
                                 span,
-                            } = self.parse_value_from_vec(toks)?;
+                            } = self.parse_value()?;
                             span.merge(kind_string.span);
                             if let Some(Token { kind: ';', pos }) = self.toks.peek() {
                                 kind_string.span.merge(*pos);
@@ -534,14 +531,12 @@ impl<'a> Parser<'a> {
         let mut found_true = false;
         let mut body = Vec::new();
 
-        let init_cond_toks = read_until_open_curly_brace(self.toks)?;
-        if init_cond_toks.is_empty() {
-            return Err(("Expected expression.", self.span_before).into());
-        }
+        let init_cond = self.parse_value()?.node;
+
         // consume the open curly brace
         let span_before = match self.toks.next() {
-            Some(t) => t.pos,
-            None => return Err(("Expected expression.", self.span_before).into()),
+            Some(Token { kind: '{', pos }) => pos,
+            Some(..) | None => return Err(("expected \"}\".", self.span_before).into()),
         };
 
         if self.toks.peek().is_none() {
@@ -550,7 +545,7 @@ impl<'a> Parser<'a> {
 
         self.whitespace_or_comment();
 
-        if self.parse_value_from_vec(init_cond_toks)?.is_true() {
+        if init_cond.is_true() {
             found_true = true;
             body = Parser {
                 toks: self.toks,
diff --git a/src/parse/value/parse.rs b/src/parse/value/parse.rs
index d27f697..dd40e9b 100644
--- a/src/parse/value/parse.rs
+++ b/src/parse/value/parse.rs
@@ -55,8 +55,11 @@ impl<'a> Parser<'a> {
     pub(crate) fn parse_value(&mut self) -> SassResult<Spanned<Value>> {
         self.whitespace();
         let span = match self.toks.peek() {
+            Some(Token { kind: '}', .. })
+            | Some(Token { kind: ';', .. })
+            | Some(Token { kind: '{', .. })
+            | None => return Err(("Expected expression.", self.span_before).into()),
             Some(Token { pos, .. }) => *pos,
-            None => return Err(("Expected expression.", self.span_before).into()),
         };
         let mut last_was_whitespace = false;
         let mut space_separated = Vec::new();
diff --git a/tests/error.rs b/tests/error.rs
index d8571c5..7b9a359 100644
--- a/tests/error.rs
+++ b/tests/error.rs
@@ -219,17 +219,14 @@ error!(
     "a {$color: {ed;}", "Error: Expected expression."
 );
 error!(
-    #[ignore = "this test does not fail because the closing brace is included in the value"]
     empty_style_value_no_semicolon,
     "a {color:}", "Error: Expected expression."
 );
 error!(
-    #[ignore = "this test does not fail because the semicolon is included in the value"]
     empty_style_value_semicolon,
     "a {color:;}", "Error: Expected expression."
 );
 error!(
-    #[ignore = "this does not fail"]
     ident_colon_closing_brace,
     "r:}", "Error: Expected expression."
 );