refactor: Port from assert_matches_exact to assert_e2e

This leaves off `validate_crate_contents` as that would be an effort on
its own

crates/cargo-test-support/src/compare.rs

@@ -97,6 +97,60 @@ pub fn assert_ui() -> snapbox::Assert {
         .redact_with(subs)
 }
 
+/// Assertion policy for functional end-to-end tests
+///
+/// This emphasizes showing as much content as possible at the cost of more brittleness
+///
+/// # Snapshots
+///
+/// Updating of snapshots is controlled with the `SNAPSHOTS` environment variable:
+///
+/// - `skip`: do not run the tests
+/// - `ignore`: run the tests but ignore their failure
+/// - `verify`: run the tests
+/// - `overwrite`: update the snapshots based on the output of the tests
+///
+/// # Patterns
+///
+/// - `[..]` is a character wildcard, stopping at line breaks
+/// - `\n...\n` is a multi-line wildcard
+/// - `[EXE]` matches the exe suffix for the current platform
+/// - `[ROOT]` matches [`paths::root()`][crate::paths::root]
+/// - `[ROOTURL]` matches [`paths::root()`][crate::paths::root] as a URL
+///
+/// # Normalization
+///
+/// In addition to the patterns described above, text is normalized
+/// in such a way to avoid unwanted differences. The normalizations are:
+///
+/// - Backslashes are converted to forward slashes to deal with Windows paths.
+///   This helps so that all tests can be written assuming forward slashes.
+///   Other heuristics are applied to try to ensure Windows-style paths aren't
+///   a problem.
+/// - Carriage returns are removed, which can help when running on Windows.
+pub fn assert_e2e() -> snapbox::Assert {
+    let root = paths::root();
+    // Use `from_file_path` instead of `from_dir_path` so the trailing slash is
+    // put in the users output, rather than hidden in the variable
+    let root_url = url::Url::from_file_path(&root).unwrap().to_string();
+
+    let mut subs = snapbox::Redactions::new();
+    subs.extend(MIN_LITERAL_REDACTIONS.into_iter().cloned())
+        .unwrap();
+    subs.extend(E2E_LITERAL_REDACTIONS.into_iter().cloned())
+        .unwrap();
+    subs.insert("[ROOT]", root).unwrap();
+    subs.insert("[ROOTURL]", root_url).unwrap();
+    subs.insert(
+        "[ELAPSED]",
+        regex::Regex::new("[FINISHED].*in (?<redacted>[0-9]+(\\.[0-9]+))s").unwrap(),
+    )
+    .unwrap();
+    snapbox::Assert::new()
+        .action_env(snapbox::assert::DEFAULT_ACTION_ENV)
+        .redact_with(subs)
+}
+
 static MIN_LITERAL_REDACTIONS: &[(&str, &str)] = &[("[EXE]", std::env::consts::EXE_SUFFIX)];
 static E2E_LITERAL_REDACTIONS: &[(&str, &str)] = &[
     ("[RUNNING]", "     Running"),
@@ -287,7 +341,7 @@ pub(crate) fn match_exact(
 
 /// Convenience wrapper around [`match_exact`] which will panic on error.
 #[track_caller]
-pub fn assert_match_exact(expected: &str, actual: &str) {
+pub(crate) fn assert_match_exact(expected: &str, actual: &str) {
     if let Err(e) = match_exact(expected, actual, "", "", None) {
         crate::panic_error("", e);
     }

crates/cargo-test-support/src/lib.rs

@@ -76,6 +76,7 @@ pub mod prelude {
     pub use crate::CargoCommand;
     pub use crate::ChannelChanger;
     pub use crate::TestEnv;
+    pub use snapbox::IntoData;
 }
 
 /*

tests/testsuite/alt_registry.rs

@@ -1,8 +1,9 @@
 //! Tests for alternative registries.
 
-use cargo_test_support::compare::assert_match_exact;
+use cargo_test_support::compare::assert_e2e;
 use cargo_test_support::publish::validate_alt_upload;
 use cargo_test_support::registry::{self, Package, RegistryBuilder};
+use cargo_test_support::str;
 use cargo_test_support::{basic_manifest, paths, project};
 use std::fs;
 
@@ -1476,9 +1477,10 @@ fn sparse_lockfile() {
         .build();
 
     p.cargo("generate-lockfile").run();
-    assert_match_exact(
+    assert_e2e().eq(
         &p.read_lockfile(),
-        r#"# This file is automatically @generated by Cargo.
+        str![[r##"
+# This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
 version = 3
 
@@ -1492,8 +1494,10 @@ dependencies = [
 [[package]]
 name = "foo"
 version = "0.1.0"
-source = "sparse+http://[..]/"
-checksum = "458c1addb23fde7dfbca0410afdbcc0086f96197281ec304d9e0e10def3cb899""#,
+source = "sparse+http://127.0.0.1:[..]/index/"
+checksum = "458c1addb23fde7dfbca0410afdbcc0086f96197281ec304d9e0e10def3cb899"
+
+"##]],
     );
 }
 

tests/testsuite/artifact_dep.rs

@@ -1,8 +1,9 @@
 //! Tests specific to artifact dependencies, designated using
 //! the new `dep = { artifact = "bin", … }` syntax in manifests.
 
-use cargo_test_support::compare;
+use cargo_test_support::compare::assert_e2e;
 use cargo_test_support::registry::{Package, RegistryBuilder};
+use cargo_test_support::str;
 use cargo_test_support::{
     basic_bin_manifest, basic_manifest, cross_compile, project, publish, registry, rustc_host,
     Project,
@@ -595,25 +596,31 @@ fn build_script_with_bin_artifacts() {
     let build_script_output = build_script_output_string(&p, "foo");
     // we need the binary directory for this artifact along with all binary paths
     if cfg!(target_env = "msvc") {
-        compare::assert_match_exact(
-            "[..]/artifact/bar-[..]/bin/baz.exe\n\
-             [..]/artifact/bar-[..]/staticlib/bar-[..].lib\n\
-             [..]/artifact/bar-[..]/cdylib/bar.dll\n\
-             [..]/artifact/bar-[..]/bin\n\
-             [..]/artifact/bar-[..]/bin/bar.exe\n\
-             [..]/artifact/bar-[..]/bin/bar.exe",
+        assert_e2e().eq(
             &build_script_output,
-        )
+            str![[r#"
+[ROOT]/foo/target/debug/deps/artifact/bar-[..]/bin/baz[EXE]
+[ROOT]/foo/target/debug/deps/artifact/bar-[..]/staticlib/bar-[..].lib
+[ROOT]/foo/target/debug/deps/artifact/bar-[..]/cdylib/bar.dll
+[ROOT]/foo/target/debug/deps/artifact/bar-[..]/bin
+[ROOT]/foo/target/debug/deps/artifact/bar-[..]/bin/bar[EXE]
+[ROOT]/foo/target/debug/deps/artifact/bar-[..]/bin/bar[EXE]
+
+"#]],
+        );
     } else {
-        compare::assert_match_exact(
-            "[..]/artifact/bar-[..]/bin/baz-[..]\n\
-             [..]/artifact/bar-[..]/staticlib/libbar-[..].a\n\
-             [..]/artifact/bar-[..]/cdylib/[..]bar.[..]\n\
-             [..]/artifact/bar-[..]/bin\n\
-             [..]/artifact/bar-[..]/bin/bar-[..]\n\
-             [..]/artifact/bar-[..]/bin/bar-[..]",
+        assert_e2e().eq(
             &build_script_output,
-        )
+            str![[r#"
+[ROOT]/foo/target/debug/deps/artifact/bar-[..]/bin/baz-[..]
+[ROOT]/foo/target/debug/deps/artifact/bar-[..]/staticlib/libbar-[..].a
+[ROOT]/foo/target/debug/deps/artifact/bar-[..]/cdylib/libbar.[..]
+[ROOT]/foo/target/debug/deps/artifact/bar-[..]/bin
+[ROOT]/foo/target/debug/deps/artifact/bar-[..]/bin/bar-[..]
+[ROOT]/foo/target/debug/deps/artifact/bar-[..]/bin/bar-[..]
+
+"#]],
+        );
     }
 
     assert!(
@@ -777,19 +784,22 @@ fn build_script_with_selected_dashed_bin_artifact_and_lib_true() {
     let build_script_output = build_script_output_string(&p, "foo");
     // we need the binary directory for this artifact and the binary itself
     if cfg!(target_env = "msvc") {
-        compare::assert_match_exact(
-            &format!(
-                "[..]/artifact/bar-baz-[..]/bin\n\
-                 [..]/artifact/bar-baz-[..]/bin/baz_suffix{}",
-                std::env::consts::EXE_SUFFIX,
-            ),
+        assert_e2e().eq(
             &build_script_output,
+            str![[r#"
+[ROOT]/foo/target/debug/deps/artifact/bar-baz-[..]/bin
+[ROOT]/foo/target/debug/deps/artifact/bar-baz-[..]/bin/baz_suffix[EXE]
+
+"#]],
         );
     } else {
-        compare::assert_match_exact(
-            "[..]/artifact/bar-baz-[..]/bin\n\
-        [..]/artifact/bar-baz-[..]/bin/baz_suffix-[..]",
+        assert_e2e().eq(
             &build_script_output,
+            str![[r#"
+[ROOT]/foo/target/debug/deps/artifact/bar-baz-[..]/bin
+[ROOT]/foo/target/debug/deps/artifact/bar-baz-[..]/bin/baz_suffix-[..]
+
+"#]],
         );
     }
 
@@ -1740,7 +1750,14 @@ fn allow_dep_renames_with_multiple_versions() {
         .with_stderr_contains("[COMPILING] foo [..]")
         .run();
     let build_script_output = build_script_output_string(&p, "foo");
-    compare::assert_match_exact("0.5.0\n1.0.0", &build_script_output);
+    assert_e2e().eq(
+        &build_script_output,
+        str![[r#"
+0.5.0
+1.0.0
+
+"#]],
+    );
 }
 
 #[cargo_test]
@@ -3216,18 +3233,26 @@ fn build_only_specified_artifact_library() {
         .cargo("build -Z bindeps")
         .masquerade_as_nightly_cargo(&["bindeps"])
         .run();
-    compare::assert_match_exact(
-        "cdylib present: true\nstaticlib present: false",
+    assert_e2e().eq(
         &build_script_output_string(&cdylib, "foo"),
+        str![[r#"
+cdylib present: true
+staticlib present: false
+
+"#]],
     );
 
     let staticlib = create_project("staticlib");
     staticlib
         .cargo("build -Z bindeps")
         .masquerade_as_nightly_cargo(&["bindeps"])
         .run();
-    compare::assert_match_exact(
-        "cdylib present: false\nstaticlib present: true",
+    assert_e2e().eq(
         &build_script_output_string(&staticlib, "foo"),
+        str![[r#"
+cdylib present: false
+staticlib present: true
+
+"#]],
     );
 }

tests/testsuite/build_script.rs

@@ -1,9 +1,10 @@
 //! Tests for build.rs scripts.
 
-use cargo_test_support::compare::assert_match_exact;
+use cargo_test_support::compare::assert_e2e;
 use cargo_test_support::install::cargo_home;
 use cargo_test_support::paths::CargoPathExt;
 use cargo_test_support::registry::Package;
+use cargo_test_support::str;
 use cargo_test_support::tools;
 use cargo_test_support::{
     basic_manifest, cargo_exe, cross_compile, is_coarse_mtime, project, project_in,
@@ -3398,9 +3399,12 @@ fn generate_good_d_files() {
 
     println!("*.d file content*: {}", &dot_d);
 
-    assert_match_exact(
-        "[..]/target/debug/meow[EXE]: [..]/awoo/barkbarkbark [..]/awoo/build.rs[..]",
+    assert_e2e().eq(
         &dot_d,
+        str![[r#"
+[ROOT]/foo/target/debug/meow[EXE]: [ROOT]/foo/awoo/barkbarkbark [ROOT]/foo/awoo/build.rs [ROOT]/foo/awoo/src/lib.rs [ROOT]/foo/src/main.rs
+
+"#]],
     );
 
     // paths relative to dependency roots should not be allowed
@@ -3421,9 +3425,12 @@ fn generate_good_d_files() {
 
     println!("*.d file content with dep-info-basedir*: {}", &dot_d);
 
-    assert_match_exact(
-        "target/debug/meow[EXE]: awoo/barkbarkbark awoo/build.rs[..]",
+    assert_e2e().eq(
         &dot_d,
+        str![[r#"
+target/debug/meow[EXE]: awoo/barkbarkbark awoo/build.rs awoo/src/lib.rs src/main.rs
+
+"#]],
     );
 
     // paths relative to dependency roots should not be allowed
@@ -3485,16 +3492,10 @@ fn generate_good_d_files_for_external_tools() {
 
     println!("*.d file content with dep-info-basedir*: {}", &dot_d);
 
-    assert_match_exact(
-        concat!(
-            "rust_things/foo/target/debug/meow[EXE]:",
-            " rust_things/foo/awoo/barkbarkbark",
-            " rust_things/foo/awoo/build.rs",
-            " rust_things/foo/awoo/src/lib.rs",
-            " rust_things/foo/src/main.rs",
-        ),
-        &dot_d,
-    );
+    assert_e2e().eq(&dot_d, str![[r#"
+rust_things/foo/target/debug/meow[EXE]: rust_things/foo/awoo/barkbarkbark rust_things/foo/awoo/build.rs rust_things/foo/awoo/src/lib.rs rust_things/foo/src/main.rs
+
+"#]]);
 }
 
 #[cargo_test]

tests/testsuite/check.rs

@@ -3,10 +3,11 @@
 use std::fmt::{self, Write};
 
 use crate::messages::raw_rustc_output;
-use cargo_test_support::compare;
+use cargo_test_support::compare::assert_e2e;
 use cargo_test_support::install::exe;
 use cargo_test_support::paths::CargoPathExt;
 use cargo_test_support::registry::Package;
+use cargo_test_support::str;
 use cargo_test_support::tools;
 use cargo_test_support::{basic_bin_manifest, basic_manifest, git, project};
 
@@ -1553,7 +1554,10 @@ fn pkgid_querystring_works() {
     let output = p.cargo("pkgid").arg("gitdep").exec_with_output().unwrap();
     let gitdep_pkgid = String::from_utf8(output.stdout).unwrap();
     let gitdep_pkgid = gitdep_pkgid.trim();
-    compare::assert_match_exact("git+file://[..]/gitdep?branch=master#1.0.0", &gitdep_pkgid);
+    assert_e2e().eq(
+        gitdep_pkgid,
+        str!["git+[ROOTURL]/gitdep?branch=master#1.0.0"],
+    );
 
     p.cargo("build -p")
         .arg(gitdep_pkgid)