Auto merge of #11228 - matthiaskrgr:fix_integration_tests2__with_test, r=<try>

test that we correctly detect panics in intergation tests

Right now, this should pass as it is on top of #11225

but once I removed that from the pr, I should be able to see the failure.

changelog: add test for integration tests

Author: bors

.github/workflows/clippy_bors.yml

@@ -187,16 +187,14 @@ jobs:
     - name: Extract Binaries
       run: |
         DIR=$CARGO_TARGET_DIR/debug
-        rm $DIR/deps/integration-*.d
-        mv $DIR/deps/integration-* $DIR/integration
+        find $DIR/deps/integration-* -executable ! -type d | xargs -I {} mv {} $DIR/integration
         find $DIR ! -executable -o -type d ! -path $DIR | xargs rm -rf
-        rm -rf $CARGO_TARGET_DIR/release
 
     - name: Upload Binaries
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v3
       with:
-        name: target
-        path: target
+        name: binaries
+        path: target/debug
 
   integration:
     needs: integration_build
@@ -206,22 +204,21 @@ jobs:
       matrix:
         integration:
         - 'rust-lang/cargo'
-        # FIXME: re-enable once fmt_macros is renamed in RLS
-        # - 'rust-lang/rls'
         - 'rust-lang/chalk'
         - 'rust-lang/rustfmt'
         - 'Marwes/combine'
         - 'Geal/nom'
         - 'rust-lang/stdarch'
         - 'serde-rs/serde'
-        # FIXME: chrono currently cannot be compiled with `--all-targets`
-        # - 'chronotope/chrono'
+        - 'chronotope/chrono'
         - 'hyperium/hyper'
         - 'rust-random/rand'
         - 'rust-lang/futures-rs'
         - 'rust-itertools/itertools'
         - 'rust-lang-nursery/failure'
         - 'rust-lang/log'
+        - 'matthiaskrgr/clippy_ci_panic_test'
+
 
     runs-on: ubuntu-latest
 
@@ -237,12 +234,17 @@ jobs:
     - name: Install toolchain
       run: rustup show active-toolchain
 
+    - name: Set LD_LIBRARY_PATH
+      run: |
+        SYSROOT=$(rustc --print sysroot)
+        echo "LD_LIBRARY_PATH=${SYSROOT}/lib${LD_LIBRARY_PATH+:${LD_LIBRARY_PATH}}" >> $GITHUB_ENV
+
     # Download
     - name: Download target dir
-      uses: actions/download-artifact@v1
+      uses: actions/download-artifact@v3
       with:
-        name: target
-        path: target
+        name: binaries
+        path: target/debug
 
     - name: Make Binaries Executable
       run: chmod +x $CARGO_TARGET_DIR/debug/*
@@ -251,7 +253,7 @@ jobs:
     - name: Test ${{ matrix.integration }}
       run: |
         RUSTUP_TOOLCHAIN="$(rustup show active-toolchain | grep -o -E "nightly-[0-9]{4}-[0-9]{2}-[0-9]{2}")" \
-          $CARGO_TARGET_DIR/debug/integration
+          $CARGO_TARGET_DIR/debug/integration --show-output
       env:
         INTEGRATION: ${{ matrix.integration }}
 

tests/integration.rs

@@ -65,6 +65,22 @@ fn integration_test() {
         .expect("unable to run clippy");
 
     let stderr = String::from_utf8_lossy(&output.stderr);
+
+    // debug:
+    eprintln!("{stderr}");
+
+    // this is an internal test to make sure we would correctly panic on a delay_span_bug
+    if repo_name == "matthiaskrgr/clippy_ci_panic_test" {
+        // we need to kind of switch around our logic here:
+        // if we find a panic, everything is fine, if we don't panic, SOMETHING is broken about our testing
+
+        if let Some(backtrace_start) = stderr.find("error: internal compiler error") {
+            eprintln!("we saw that we intentionally panicked, yay")
+        } else {
+            panic!("panic caused by delay_span_bug was NOT detected! Something is broken!")
+        }
+    }
+
     if let Some(backtrace_start) = stderr.find("error: internal compiler error") {
         static BACKTRACE_END_MSG: &str = "end of query stack";
         let backtrace_end = stderr[backtrace_start..]