Merge branch 'keyword_warn_compiletest'

.travis.yml

@@ -3,17 +3,23 @@ rust: nightly
 sudo: false
 
 before_script:
-  - rustup component add clippy-preview --toolchain=nightly
+  - |
+    RUN_CLIPPY=true
+    rustup component add clippy-preview --toolchain=nightly || RUN_CLIPPY=false
 
 script:
   - (cd maud && cargo build --features="iron")
+  # The compiletest tests require a single version of the crate to be built
+  # or else there will be errors in picking the right version - so we test now
+  - cargo test --all
   - (cd maud && cargo build --features="rocket")
   - (cd maud && cargo build --features="actix-web")
-  - cargo test --all
   - (cd benchmarks && cargo bench --no-run)
   - |
-    CLIPPY_STATUS=0
-    for package in maud_htmlescape maud_macros maud maud_extras; do
-      (cd $package && cargo clippy -- -D warnings) || CLIPPY_STATUS=$?
-    done
-    (exit $CLIPPY_STATUS)
+    if $RUN_CLIPPY; then
+      CLIPPY_STATUS=0
+      for package in maud_htmlescape maud_macros maud maud_extras; do
+        (cd $package && cargo clippy -- -D warnings) || CLIPPY_STATUS=$?
+      done
+      (exit $CLIPPY_STATUS)
+    fi

maud/Cargo.toml

@@ -19,6 +19,9 @@ iron = { version = ">= 0.5.1, < 0.7.0", optional = true }
 rocket = { version = "0.3", optional = true }
 actix-web = { version = ">= 0.6.12, < 0.8.0", optional = true }
 
+[dev-dependencies]
+compiletest_rs = "0.3.15"
+
 [badges]
 travis-ci = { repository = "lfairy/maud" }
 

maud/tests/warnings.rs

@@ -0,0 +1,15 @@
+extern crate compiletest_rs;
+
+use std::path::PathBuf;
+
+#[test]
+fn run_warnings() {
+    let mut config = compiletest_rs::Config::default();
+
+    config.mode = compiletest_rs::common::Mode::Ui;
+    config.src_base = PathBuf::from("tests/warnings");
+    config.link_deps(); // Populate config.target_rustcflags with dependencies on the path
+    config.clean_rmeta(); // If your tests import the parent crate, this helps with E0464
+
+    compiletest_rs::run_tests(&config);
+}

maud/tests/warnings/warn_on_keyword_names.rs

@@ -0,0 +1,11 @@
+#![feature(proc_macro_hygiene)]
+
+extern crate maud_macros;
+
+use maud_macros::html;
+
+fn main() {
+    html! {
+        if {}
+    };
+}

maud/tests/warnings/warn_on_keyword_names.stderr

@@ -0,0 +1,6 @@
+warning: found keyword `if` - should this be a `@if`?
+ --> $DIR/warn_on_keyword_names.rs:9:9
+  |
+9 |         if {}
+  |         ^^
+