-//! Fixtures are strings containing rust source code with optional metadata.
-//! A fixture without metadata is parsed into a single source file.
-//! Use this to test functionality local to one file.
-//!
-//! Simple Example:
-//! ```
-//! r#"
-//! fn main() {
-//! println!("Hello World")
-//! }
-//! "#
-//! ```
-//!
-//! Metadata can be added to a fixture after a `//-` comment.
-//! The basic form is specifying filenames,
-//! which is also how to define multiple files in a single test fixture
-//!
-//! Example using two files in the same crate:
-//! ```
-//! "
-//! //- /main.rs
-//! mod foo;
-//! fn main() {
-//! foo::bar();
-//! }
-//!
-//! //- /foo.rs
-//! pub fn bar() {}
-//! "
-//! ```
-//!
-//! Example using two crates with one file each, with one crate depending on the other:
-//! ```
-//! r#"
-//! //- /main.rs crate:a deps:b
-//! fn main() {
-//! b::foo();
-//! }
-//! //- /lib.rs crate:b
-//! pub fn b() {
-//! println!("Hello World")
-//! }
-//! "#
-//! ```
-//!
-//! Metadata allows specifying all settings and variables
-//! that are available in a real rust project:
-//! - crate names via `crate:cratename`
-//! - dependencies via `deps:dep1,dep2`
-//! - configuration settings via `cfg:dbg=false,opt_level=2`
-//! - environment variables via `env:PATH=/bin,RUST_LOG=debug`
-//!
-//! Example using all available metadata:
-//! ```
-//! "
-//! //- /lib.rs crate:foo deps:bar,baz cfg:foo=a,bar=b env:OUTDIR=path/to,OTHER=foo
-//! fn insert_source_code_here() {}
-//! "
-//! ```
-use std::{str::FromStr, sync::Arc};
+//! A set of high-level utility fixture methods to use in tests.
+use std::{mem, str::FromStr, sync::Arc};
use cfg::CfgOptions;
use rustc_hash::FxHashMap;
-use test_utils::{extract_range_or_offset, Fixture, RangeOrOffset, CURSOR_MARKER};
+use test_utils::{
+ extract_range_or_offset, Fixture, RangeOrOffset, CURSOR_MARKER, ESCAPED_CURSOR_MARKER,
+};
use vfs::{file_set::FileSet, VfsPath};
use crate::{
- input::CrateName, Change, CrateGraph, CrateId, Edition, Env, FileId, FilePosition,
- SourceDatabaseExt, SourceRoot, SourceRootId,
+ input::CrateName, Change, CrateDisplayName, CrateGraph, CrateId, Edition, Env, FileId,
+ FilePosition, FileRange, SourceDatabaseExt, SourceRoot, SourceRootId,
};
pub const WORKSPACE: SourceRootId = SourceRootId(0);
(db, fixture.files[0])
}
+ fn with_many_files(ra_fixture: &str) -> (Self, Vec<FileId>) {
+ let fixture = ChangeFixture::parse(ra_fixture);
+ let mut db = Self::default();
+ fixture.change.apply(&mut db);
+ assert!(fixture.file_position.is_none());
+ (db, fixture.files)
+ }
+
fn with_files(ra_fixture: &str) -> Self {
let fixture = ChangeFixture::parse(ra_fixture);
let mut db = Self::default();
fn with_position(ra_fixture: &str) -> (Self, FilePosition) {
let (db, file_id, range_or_offset) = Self::with_range_or_offset(ra_fixture);
- let offset = match range_or_offset {
- RangeOrOffset::Range(_) => panic!(),
- RangeOrOffset::Offset(it) => it,
- };
+ let offset = range_or_offset.expect_offset();
(db, FilePosition { file_id, offset })
}
+ fn with_range(ra_fixture: &str) -> (Self, FileRange) {
+ let (db, file_id, range_or_offset) = Self::with_range_or_offset(ra_fixture);
+ let range = range_or_offset.expect_range();
+ (db, FileRange { file_id, range })
+ }
+
fn with_range_or_offset(ra_fixture: &str) -> (Self, FileId, RangeOrOffset) {
let fixture = ChangeFixture::parse(ra_fixture);
let mut db = Self::default();
fixture.change.apply(&mut db);
- let (file_id, range_or_offset) = fixture.file_position.unwrap();
+ let (file_id, range_or_offset) = fixture
+ .file_position
+ .expect("Could not find file position in fixture. Did you forget to add an `$0`?");
(db, file_id, range_or_offset)
}
impl ChangeFixture {
pub fn parse(ra_fixture: &str) -> ChangeFixture {
- let fixture = Fixture::parse(ra_fixture);
+ let (mini_core, fixture) = Fixture::parse(ra_fixture);
let mut change = Change::new();
let mut files = Vec::new();
let mut file_set = FileSet::default();
let source_root_prefix = "/".to_string();
let mut file_id = FileId(0);
+ let mut roots = Vec::new();
let mut file_position = None;
for entry in fixture {
let text = if entry.text.contains(CURSOR_MARKER) {
- let (range_or_offset, text) = extract_range_or_offset(&entry.text);
- assert!(file_position.is_none());
- file_position = Some((file_id, range_or_offset));
- text.to_string()
+ if entry.text.contains(ESCAPED_CURSOR_MARKER) {
+ entry.text.replace(ESCAPED_CURSOR_MARKER, CURSOR_MARKER)
+ } else {
+ let (range_or_offset, text) = extract_range_or_offset(&entry.text);
+ assert!(file_position.is_none());
+ file_position = Some((file_id, range_or_offset));
+ text
+ }
} else {
entry.text.clone()
};
let meta = FileMeta::from(entry);
assert!(meta.path.starts_with(&source_root_prefix));
+ if !meta.deps.is_empty() {
+ assert!(meta.krate.is_some(), "can't specify deps without naming the crate")
+ }
+
+ if meta.introduce_new_source_root {
+ roots.push(SourceRoot::new_local(mem::take(&mut file_set)));
+ }
if let Some(krate) = meta.krate {
let crate_name = CrateName::normalize_dashes(&krate);
meta.cfg,
meta.env,
Default::default(),
+ Default::default(),
);
let prev = crates.insert(crate_name.clone(), crate_id);
assert!(prev.is_none());
change.change_file(file_id, Some(Arc::new(text)));
let path = VfsPath::new_virtual_path(meta.path);
- file_set.insert(file_id, path.into());
+ file_set.insert(file_id, path);
files.push(file_id);
file_id.0 += 1;
}
default_cfg,
Env::default(),
Default::default(),
+ Default::default(),
);
} else {
for (from, to) in crate_deps {
}
}
- change.set_roots(vec![SourceRoot::new_local(file_set)]);
+ if let Some(mini_core) = mini_core {
+ let core_file = file_id;
+ file_id.0 += 1;
+
+ let mut fs = FileSet::default();
+ fs.insert(core_file, VfsPath::new_virtual_path("/sysroot/core/lib.rs".to_string()));
+ roots.push(SourceRoot::new_library(fs));
+
+ change.change_file(core_file, Some(Arc::new(mini_core.source_code())));
+
+ let all_crates = crate_graph.crates_in_topological_order();
+
+ let core_crate = crate_graph.add_crate_root(
+ core_file,
+ Edition::Edition2021,
+ Some(CrateDisplayName::from_canonical_name("core".to_string())),
+ CfgOptions::default(),
+ Env::default(),
+ Vec::new(),
+ );
+
+ for krate in all_crates {
+ crate_graph.add_dep(krate, CrateName::new("core").unwrap(), core_crate).unwrap();
+ }
+ }
+ roots.push(SourceRoot::new_local(mem::take(&mut file_set)));
+ change.set_roots(roots);
change.set_crate_graph(crate_graph);
ChangeFixture { file_position, files, change }
}
}
+#[derive(Debug)]
struct FileMeta {
path: String,
krate: Option<String>,
cfg: CfgOptions,
edition: Edition,
env: Env,
+ introduce_new_source_root: bool,
}
impl From<Fixture> for FileMeta {
edition: f
.edition
.as_ref()
- .map_or(Edition::Edition2018, |v| Edition::from_str(&v).unwrap()),
+ .map_or(Edition::Edition2018, |v| Edition::from_str(v).unwrap()),
env: f.env.into_iter().collect(),
+ introduce_new_source_root: f.introduce_new_source_root,
}
}
}
projects / rust.git / blobdiff