Auto merge of #16655 - servo:jdm-patch-1, r=emilio

Fix broken unit tests

These are tests that only get run on TravisCI, apparently, so they were broken by be0139ff3c and 32c624e585 without anybody noticing.

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.travis.yml

@@ -22,7 +22,7 @@ matrix:
          - bash etc/ci/lockfile_changed.sh
          - bash etc/ci/manifest_changed.sh
          - ./mach cargo test -p selectors
-         - ./mach cargo test -p style
+         - ./mach test-unit -p style
       cache:
         directories:
           - .cargo

components/selectors/Cargo.toml

@@ -14,6 +14,8 @@ license = "MPL-2.0"
 [lib]
 name = "selectors"
 path = "lib.rs"
+# https://github.com/servo/servo/issues/16710
+doctest = false
 
 [dependencies]
 bitflags = "0.7"

components/style/restyle_hints.rs

@@ -431,8 +431,11 @@ fn combinator_to_restyle_hint(combinator: Option<Combinator>) -> RestyleHint {
 
 #[derive(Debug)]
 #[cfg_attr(feature = "servo", derive(HeapSizeOf))]
-struct Sensitivities {
+/// The aspects of an selector which are sensitive.
+pub struct Sensitivities {
+    /// The states which are sensitive.
     pub states: ElementState,
+    /// Whether attributes are sensitive.
     pub attrs: bool,
 }
 
@@ -469,11 +472,13 @@ impl Sensitivities {
 /// change may have on the style of elements in the document.
 #[derive(Debug)]
 #[cfg_attr(feature = "servo", derive(HeapSizeOf))]
-struct Dependency {
+pub struct Dependency {
     #[cfg_attr(feature = "servo", ignore_heap_size_of = "Arc")]
     selector: SelectorInner<SelectorImpl>,
-    hint: RestyleHint,
-    sensitivities: Sensitivities,
+    /// The hint associated with this dependency.
+    pub hint: RestyleHint,
+    /// The sensitivities associated with this dependency.
+    pub sensitivities: Sensitivities,
 }
 
 
@@ -681,27 +686,9 @@ impl DependencySet {
             }
         }
     }
-}
-
-#[test]
-#[cfg(all(test, feature = "servo"))]
-fn smoke_restyle_hints() {
-    use cssparser::Parser;
-    use selector_parser::SelectorParser;
-    use stylesheets::{Origin, Namespaces};
-    let namespaces = Namespaces::default();
-    let parser = SelectorParser {
-        stylesheet_origin: Origin::Author,
-        namespaces: &namespaces,
-    };
-
-    let mut dependencies = DependencySet::new();
-
-    let mut p = Parser::new(":not(:active) ~ label");
-    let selector = ComplexSelector::parse(&parser, &mut p).unwrap();
-    dependencies.note_selector(&selector);
-    assert_eq!(dependencies.len(), 1);
-    assert_eq!(dependencies.state_deps.len(), 1);
-    assert!(!dependencies.state_deps[0].sensitivities.states.is_empty());
-    assert!(dependencies.state_deps[0].hint.contains(RESTYLE_LATER_SIBLINGS));
+
+    /// Get the dependencies affected by state.
+    pub fn get_state_deps(&self) -> &[Dependency] {
+        &self.state_deps
+    }
 }

python/servo/testing_commands.py

@@ -231,8 +231,10 @@ class MachCommands(CommandBase):
             else:
                 test_patterns.append(test)
 
+        in_crate_packages = []
         if not packages:
             packages = set(os.listdir(path.join(self.context.topdir, "tests", "unit"))) - set(['.DS_Store'])
+            in_crate_packages += ["selectors"]
 
         packages.discard('stylo')
 
@@ -255,6 +257,8 @@ class MachCommands(CommandBase):
             args = ["cargo", "bench" if bench else "test"]
             for crate in packages:
                 args += ["-p", "%s_tests" % crate]
+            for crate in in_crate_packages:
+                args += ["-p", crate]
             args += test_patterns
 
             if features:

tests/unit/style/lib.rs

@@ -27,6 +27,7 @@ mod logical_geometry;
 mod media_queries;
 mod parsing;
 mod properties;
+mod restyle_hints;
 mod rule_tree;
 mod size_of;
 mod str;

tests/unit/style/restyle_hints.rs

@@ -0,0 +1,31 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#[test]
+fn smoke_restyle_hints() {
+    use cssparser::Parser;
+    use selectors::parser::SelectorList;
+    use style::restyle_hints::{DependencySet, RESTYLE_LATER_SIBLINGS};
+    use style::selector_parser::SelectorParser;
+    use style::stylesheets::{Origin, Namespaces};
+    let namespaces = Namespaces::default();
+    let parser = SelectorParser {
+        stylesheet_origin: Origin::Author,
+        namespaces: &namespaces,
+    };
+
+    let mut dependencies = DependencySet::new();
+
+    let mut p = Parser::new(":not(:active) ~ label");
+    let selectors = SelectorList::parse(&parser, &mut p).unwrap();
+    assert_eq!((selectors.0).len(), 1);
+
+    let selector = (selectors.0).first().unwrap();
+    dependencies.note_selector(selector);
+    assert_eq!(dependencies.len(), 1);
+    let state_deps = dependencies.get_state_deps();
+    assert_eq!(state_deps.len(), 1);
+    assert!(!state_deps[0].sensitivities.states.is_empty());
+    assert!(state_deps[0].hint.contains(RESTYLE_LATER_SIBLINGS));
+}