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Changelog

All notable changes to insta and cargo-insta are documented here.

1.41.1

  • Re-release of 1.41.1 to generate release artifacts correctly.

1.41.0

  • Experimental support for binary snapshots. #610 (Florian Plattner)

  • --force-update-snapshots now causes cargo-insta to write every snapshot, regardless of whether snapshots fully match, and now implies --accept. This allows for --force-update-snapshots to update inline snapshots' delimiters and indentation.

    For the previous behavior of --force-update-snapshots, which limited writes to snapshots which didn't fully match, use --require-full-match. The main difference between --require-full-match and the existing behavior of --force-update-snapshots is a non-zero exit code on any snapshots which don't fully match.

    Like the previous behavior of --force-update-snapshots, --require-full-match doesn't track inline snapshots' delimiters or indentation, so can't update if those don't match. #644

  • Inline snapshots only use # characters as delimiters when required. #603

  • Warnings for undiscovered snapshots are more robust, and include files with custom snapshot extensions. #637

  • Insta runs correctly on packages which reference rust files in a parent path. #626

  • Warnings are printed when any snapshot uses a legacy format. #599

  • cargo insta --version now prints a version. #665

  • insta now internally uses INSTA_UPDATE=force rather than INSTA_FORCE_UPDATE=1. (This doesn't affect users of cargo-insta, which handles this internally.) #482

  • cargo-insta's integration tests continue to grow over the past couple of versions, and now offer coverage of most of cargo-insta's interface.

1.40.0

  • cargo-insta no longer panics when running cargo insta test --accept --workspace on a workspace with a default crate. #532

  • MSRV for insta has been raised to 1.60, and for cargo-insta to 1.64.

  • Added support for compact debug snapshots (assert_compact_debug_snapshot). #514

  • Deprecate --no-force-pass in cargo-insta. The --check option covers the same functionality and has a clearer name. #513

  • Inline snapshots now use the required number of #s to escape the snapshot value, rather than always using ###. This allows snapshotting values which themselves contain ###. If there are no existing # characters in the snapshot value, a single # will be used. #540

  • Inline snapshots can now be updated with --force-update-snapshots. #569

  • cargo insta test accepts multiple --exclude flags. #520

  • test runner in insta's yaml config works. #544

  • Print a warning when encountering old snapshot formats. #503

  • Group the options in cargo insta --help, upgrade to clap from structopt. #518

  • No longer suggest running cargo insta message when running cargo insta test --check. #515

  • Print a clearer error message when accepting a snapshot that was removed. #516

  • Mark require-full-match as experimental, given some corner-cases are currently difficult to manage. #497

  • Add a new integration test approach for cargo-insta and a set of integration tests. #537

  • Enable Filters to be created from IntoIterator types, rather than just Vecs. #570

  • Implemented total sort order for an internal Key type correctly. This prevents potential crashes introduced by the new sort algorithm in Rust 1.81. #586

1.39.0

  • Fixed a bug in require_full_match. #485

  • Fixed a bug that caused snapshot and module names to sometimes be inaccurate. #483

  • Insta will no longer error when attempting to remove snapshots that were already removed. #484

  • Added support for trailing commas in inline snapshots. #472

  • Don't pass --color in all cases to libtest any more to work around limitations with custom test harnesses. #491

1.38.0

  • Filters is now constructible from IntoIterator. #400

  • Change std macro calls to be fully qualified. This fixes issues where the prelude was not used or the macros were overridden. #469

1.37.0

  • All macros for file snapshots should now handle trailing commas (but not yet inline snapshots)

  • Vendored old yaml-rust dependency to avoid rustsec warnings. #465

1.36.1

  • Fix an ownership issue introduced in 1.36 with snapshot assertions. #453

1.36.0

  • Deprecate INSTA_FORCE_UPDATE_SNAPSHOTS env-var for INSTA_FORCE_UPDATE. The latter was documented, the former was implemented. #449

  • Add require_full_match option. #448

  • Deprecate assert_display_snapshot!. #385

1.35.1

  • Fixed a bug with diffs showing bogus newlines.

1.35.0

  • Fixed a crash when a file named .config was in the root.
  • Added new alternative match .. { ... } syntax to redactions for better rustfmt support. (#428)
  • The --package parameter can be supplied multiple times now. (#427)
  • Leading newlines in snapshots are now ignored to resolve issues with inline snapshots that were never able to match. (#444)
  • cargo insta test now accepts the --test parameter multiple times. (#437)

1.34.0

  • Snapshots are now sorted in the UI on review. (#413)
  • Re-organized repository to move cargo-insta into a workspace. (#410)
  • Fixed handling of --manifest-path with regards to virtual workspaces. (#409)

1.33.0

  • Added --all-targets parameter support to cargo insta test. (#408)

1.32.0

  • Added --profile parameter support to cargo insta test.

1.31.0

  • Fixed a bug that caused cargo insta test not to report test failures.
  • Suppress needless_raw_string_hashes clippy lint on inline snapshots. (#390)

1.30.0

  • Resolved a bug on Windows that caused input_file not to be written into the snapshots. (#386)
  • Snapshots are accepted when running with --accept even if a test outside insta fails. (#358)
  • Mark settings drop guard as #[must_use].
  • Write inline snapshots with atomic rename to avoid some rare races. (#373)
  • Pass --color=... to libtest to propagate color choices in more situations. (#375)

1.29.0

  • Fixed a rendering bug with snapshot display (lines were not rendered to the terminal width).
  • Added --exclude option to cargo insta test. (#360)
  • Inherit color option from a CARGO_TERM_COLOR environment variable (#361)

1.28.0

  • Added allow_duplicates! to enable multiple assertions for a single snapshot. (#346)
  • Ensure that expressions formatted with rustfmt use unix newlines.
  • Added a way to disable diffing in review. (#348)
  • Added three argument version of glob! to set a different base path. (#347)
  • Added rounded_redaction to truncate floating point values. (#350)

1.27.0

  • Fix an issue where the inline snapshot patcher could panic in certain situations. (#341)
  • cargo insta test now correctly detects CI environments like cargo test does. In that case it will by fail rather than create snapshot update files. (#345)
  • Added cargo insta test --check to force check runs. (#345)

1.26.0

  • Make canonicalization in glob! optional to better support WASI.

1.25.0

  • Added a way to disable the undiscoverable snapshots warning. By setting the review.warn_undiscovered config key to false a warning is never printed. (#334)
  • Force updating snapshots will now not overwrite files that did not change. This improves the behavior for situations if that behavior is preferred as a default choice. (#335)

1.24.1

  • Fix non working --include-hidden flag (#331)
  • Fix incorrect mapping of review.include_ignored (#330)

1.24.0

  • Added an insta tool config (.config/insta.yaml) to change the behavior of insta and cargo-insta. (#322)
  • Renamed --no-ignore to --include-ignored.
  • Added --include-hidden to instruct insta to also walk into hidden paths.
  • Added new --unreferenced option to cargo-insta test which allows fine tuning of what should happen with unreferenced files. It's now possible to ignore (default), warn, reject or delete unreferenced snapshots. (#328)
  • Resolved an error message about doc tests when using nextest with test targeting. (#317)

1.23.0

  • Add a hint if snapshots might be skipped. (#314)
  • Avoid extra newline in YAML snapshots. (#311)

1.22.0

  • Added support for rendering some invisibles in diffs. This now also should make sure that ANSI sequences in strings are no longer screwing up the terminal output. (#308)
  • Prevent inline snapshots to be used in loops. (#307)
  • Support the --target option to cargo insta test. (#309)
  • Globbing now adds directories as disambiguators into the snapshot suffixes. This allows patterns such as foo/*/*.txt without creating conflicts. (#310)

1.21.2

  • Added missing parameters to cargo insta test. (#305)
  • Fixed a sorting issue in hash maps for compound keys. (#304)

1.21.1

  • Fix incorrect handling of extra args to cargo insta test.

1.21.0

  • Fixed an issue that broke support for older rust versions. (#292)
  • Added cargo insta show command to render a snapshot.
  • Added support for compact JSON snapshots. (#288)

1.20.0

  • cargo insta now supports nextest as test runner. (#285)
  • The glob! macro now defers failures by default. (#284)

1.19.1

  • Added support for numeric keys in JSON which regressed in 0.18.0. (#281)

1.19.0

  • Removed backtrace feature.
  • Removed serialization feature.
  • assert_json_snapshot! and assert_yaml_snapshot! now require the json and yaml feature respectively.
  • Doctests now emit a warning that inline snapshot updating is not supported (#272)
  • Added support for INSTA_GLOB_FILTER to skip over tests expanded from a glob. (#274)

1.18.2

  • Avoid the use of #[allow(unused)] in the macro. (#271)

1.18.1

  • Fixed a regression in the JSON serialization format with newtypes and tuple variants. (#270)

1.18.0

  • Settings::bind now can return a result.
  • Expose the drop guard type of bind_to_scope.
  • The serde dependency is now optional. While still enabled by default users need to opt into yaml and json features explicitly to regain support for it. To avoid the default serde dependency the default features just need to be disabled. (#255)
  • Deprecated unused serialization features.
  • Deprecated unused backtrace feature.
  • Removed deprecated Settings::bind_to_thread.

Breaking Changes / Upgrading: If you are upgrading to serde 1.18.0 you will receive deprecating warnings if you are using the assert_yaml_snapshot! and assert_json_snapshot! macros. These macros will continue to function in the future but they will require explicit opting into the yaml and json features. To silence the warning add them to your insta dependency. Additionally the backtrace feature was deprecated. It is no longer needed so just remove it.

1.17.2

  • Remove an accidentally debug print output.

1.17.1

  • Added support for nextest. (#242)
  • Resolved an issue where inline snapshot tests in doctests refused to work. (#252)

1.17.0

  • Fixed an issue in cargo-insta where sometimes accepting inline snapshots would crash with an out of bounds panic.
  • Added new filters feature. (#245)
  • Disallow unnamed snapshots in doctests. (#246)
  • with_settings! macro now inherits the former settings rather than resetting. (#249)
  • Added support for Settings::bind_to_scope and deprecated Settings::bind_to_thread. (#250)
  • Added support for minimal-versions builds.

1.16.0

  • Added --no-quiet/-Q flag to cargo insta test to suppress the quiet flag. This works around limitations with custom test harnesses such as cucumber.
  • Update RON to 0.7.1.
  • Improved ergonomics around with_settings!. It's now a perfect match to the settings object's setter methods.
  • Added description and info to snapshots. (#239)
  • Added omit_expression setting. (#239)
  • Added improved support for running insta from doctests. (#243)

1.15.0

  • Bump minimum version of Rust to 1.56.1. This was done because the used serde-yaml dependency no longer supports older versions of Rust.

1.14.1

  • Update uuid crate to 1.0.0. (#228)
  • Use inline block format also for strings of form "foo\n". (#225)

1.14.0

  • Fixed a bug that caused insta to panic if inline snapshot assertions moved since the time of the snapshot creation. (#220)
  • cargo insta test now returns non zero status code when snapshots are left for review. (#222)
  • Assertion failures now mention cargo insta test. (#223)

1.13.0

  • Fixed a bug where an extra newline was emitted following the snapshot header.
  • assertion_line is no longer retained in snapshots. (#218)

1.12.0

  • Add support for sorting redactions (sorted_redaction and Settings::sort_selector). (#212)
  • Changed snapshot name detection to no longer use thread names but function names. (#213)

Upgrade Notes:

Insta used to detect the current test name by using the current thread name. This appeared to work well but unfortunately ran into various limitations. In particular in some cases the thread name was truncated, missing or did not point to the current test name. To better support different platforms and situations insta now uses the function name instead.

This however changes behavior. In particular if you are using a helper function to assert, a different snapshot name will now be used. You can work around this issue by using a helper macro instead or to explicitly pass a snapshot name in such situations.

1.11.0

  • Trim down some unnecessary dependencies and switch to once_cell. (#208)

1.10.0

  • Update internal dependencies for console and ron.

1.9.0

  • cargo-insta now correctly handles the package (-p) argument on test when deleting unreferenced snapshots. (#201)

1.8.0

  • Added the ability to redact into a key. (#192)
  • Insta now memorizes assertion line numbers in snapshots. While these will quickly be old, they are often useful when reviewing snapshots immediately after creation with cargo-insta. (#191)

1.7.2

  • Fixed an issue where selectors could not start with underscore. (#189)
  • Allow passing arguments to cargo test. (#183)
  • Avoid the use of Box::leak. (#185)
  • When INSTA_WORKSPACE_ROOT is set, the value is used as the manifest directory rather than whatever CARGO_MANIFEST_DIR was set to at compile time. (#180)

1.7.1

  • Removed an accidental debug print. (#175)

1.7.0

  • Added support for u128/i128. (#169)
  • Normalize newlines to unix before before asserting. (#172)
  • Switch diffing to patience. (#173)

1.6.3

  • Fix a bug with empty lines in inline snapshots. (#166)

1.6.2

  • Lower Rust support to 1.41.0 (#165)

1.6.1

  • Bump similar dependency to reintroduce support for Rust 1.43.0 (#162)
  • Fixed custom extension support in cargo-insta (#163)

1.6.0

  • Change CSV serialization format to format multiple structs as multiple rows. (#156)
  • Improvements to diff rendering.
  • Detect some snapshot name clashes. (#159)

1.5.3

1.5.2

  • API documentation updates.

1.5.1

  • Fixed glob not working correctly.
  • Fail by default if glob is not returning any matches. Fixes #151.

1.5.0

  • Add pending-snapshots parameter to cargo-insta.
  • cargo-insta now honors ignore files. This can be overridden with --no-ignore.
  • cargo-insta now supports the vscode extension.

1.4.0

  • Add --delete-unreferenced-snapshots parameter to cargo-insta.
  • Switch to the globset crate for the glob feature.
  • When INSTA_UPDATE is set to always or unseen it won't fail on execution.
  • Changed informational outputs also show on pass.

1.3.0

  • Expose more useful methods from Content.
  • Fixes for latest rustc version.

1.2.0

  • Fix invalid offset calculation for inline snapshot (#137)
  • Added support for newtype variant redactions. (#139)

1.1.0

  • Added the INSTA_SNAPSHOT_REFERENCES_FILE environment variable to support deletions of unreferenced snapshot files. (#136)
  • Added support for TOML serializations.
  • Avoid diff calculation on large input files. (#135)
  • Added prepend_module_to_snapshot flag to disable prepending of module names to snapshot files. (#133)
  • Made console dependency optional. The colors feature can be disabled now which disables colored output.

1.0.0

  • Globs now follow links (#132)
  • Added CSV Support (#134)
  • Changed globs to also include directories not just files.
  • Support snapshots outside source folder. (#70)
  • Update RON to 0.6.

0.16.1

  • Add Settings::bind_async when the async feature is enabled. (#121)
  • Bumped console dependency to 0.11. (#124)
  • Fixed incorrect path handling for glob!. (#123)
  • Remove cargo-insta from workspace and add Cargo.lock. (#116)

0.16.0

  • Made snapshot names optional for inline snapshots. (#106)
  • Remove legacy macros. (#115)
  • Made small improvements to cargo-insta's messaging and flags (#114)
  • Added new logo.
  • Added glob support. (#112)
  • Made MetaData fields internal. (#111)

0.15.0

  • Added test output control (INSTA_OUTPUT envvar). (#103)

0.14.0

  • Dependency bump for console (lowers total dependency count)
  • Change binary name to cargo insta in help pages.

0.13.1

  • Added support for INSTA_UPDATE=unseen to write out unseen snapshots without review (#96)
  • Added the backtrace feature which adds support for test name (and thus snapshot name) recovery from the backtrace if rust-test is not used in concurrent mode (#94, #98)

0.13

  • Add support for deep wildcard matches (#92)
  • Use module paths for test names (#87)
  • Do not emit useless indentations for empty lines (#88)

0.12

  • Improve redactions support (#81)
  • Deprecated macros are now hidden
  • Reduce number of dependencies further.
  • Added support for newtype struct redactions.
  • Fixed bugs with recursive content operations (#80)

0.11

  • redactions are now an optional feature that must be turned on to be used (redactions).
  • RON format is now an optional feature that must be turned on to be used (ron).
  • added support for sorting maps before serialization.
  • added settings support.
  • added support for overriding the snapshot path.
  • correctly handle nested macros that might contain inline snapshots.
  • use thread name as snapshot name for inline snapshots.
  • use leading whitespace normalization for inline snapshots.
  • removed creator and created field from snapshot metadata.
  • removed the _matches suffix from all macros.
  • added an --accept option to cargo insta test
  • added --force-update-snapshots option to cargo insta test
  • added --jobs and --release argument to cargo insta test.

To upgrade to the new insta macros and snapshot formats you can use fastmod and cargo-insta together:

$ cargo install fastmod
$ cargo install cargo-insta
$ fastmod '\bassert_([a-z]+_snapshot)_matches!' 'assert_${`}!' -e rs --accept-all
$ cargo insta test --all --force-update-snapshots --accept