(#254) De-virtualize interfaces for specialized diffing
Dependency changes:
(#251) Use errors.Is with ≥go1.13 in compareErrors
v0.5.4
Bug fixes:
(#247) Fix non-determinism in diffing algorithm
(#248) Impose verbosity limit when formatting map keys
v0.5.3
Minor documentation changes:
(#236) Fix license headers
(#205) Add an example for IgnoreFields
(#237) Fix Diff documentation
v0.5.2
Minor documentation changes:
(#234) Suggest use of cmpopts.EquateErrors
(#231) Fix Diff documentation
v0.5.1
Minor reporter changes:
(#221) Swallow panics when calling String or Error methds.
(#229) Use triple-quote formatting for multiline strings in diffs.
Minor documentation changes:
(#228) Adjust panic for IgnoreUnexported and IgnoreFields to be more specific.
v0.5.0
The most notable changes in this release are improvements to the reporter output (i.e., the implementation that produces output for Diff). The changes seek to improve the signal-to-noise ratio such that differences of interest to the user are emphasized, while information that is less relevant are de-emphasized.
The reporter largely consists of a set of heuristics to determine what would be the best way to format the difference in the common case. If the output seems sub-par, please file an issue. The reports are highly valuable in improving its output (e.g., #195, #194, #202, #185).
Reporter changes:
(#201) Do not use custom format for nil slice. Previously, the reporter had a bug (#157) where it would fail to print the difference between empty slices that were nil versus non-nil, which is now fixed by this change.
(#212) Use custom triple-quote syntax for diffing string literals. This adds another way that strings are displayed. Previously, the reporter used a strings.Join({...}, "\n") syntax to show diffs between lines within a string. While this representation is unambiguous, the need to escape every line made the output visually distracting. Now, we add a new syntax where multiple lines are represented by a literal syntax using """ as delimiters. When possible, this syntax is preferred if it can unambiguously represent the difference.
(#208) Batch reporter output for simple lists of text elements. Previously, when formatting a slice of primitives, the reporter would print each element on a new line, causing the output to be long. Now, multiple elements are batched together into a single line to keep the output more dense.
(#210) Allow batched diffing of slices with a custom comparer. As a performance optimization, a user may choose to pass cmp.Comparer(bytes.Equal) so that large byte slices are compared using an efficient implementation. Previously, this would prevent the reporter from being able to use specialized logic to show the per-element difference between these two slices if they were different, but now it is able to.
(#213, #215) Limit verbosity of reporter output. For slices, maps, and structs, the reporter now imposes a limit on the number of elements, entries, and structs that it will print. The limit is chosen based on heuristics such as the depth of the tree and also whether the node represents an equal value or not, where inequal values are given a larger verbosity budget.
(#216) Disambiguate reporter output. Previously, there were certain edge cases where the reporter output failed to show a difference between two values that the comparer determined to be different. Now, the reporter works harder to ensure that the output is guaranteed to be different if a semantic difference is there. For example, it may try increasing the verbosity limit, printing pointer addresses, avoid calling the String method, using fully qualified type names, or some combination of the above.
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Bumps github.com/google/go-cmp from 0.4.0 to 0.5.5.
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... (truncated)
Commits
8fa37b4
Fix reporter verbosity bug (#253)dc6435e
De-virtualize interfaces for specialized diffing (#254)e9947a2
Run tests on Go 1.16 (#252)3a98a11
cmp/cmpopts: use errors.Is with ≥go1.13 in compareErrors (#251)ec71d6d
Impose verbosity limit when formatting map keys (#248)449e17c
Fix non-determinism in diffing algorithm (#247)ade6b74
Use GitHub actions for testing (#246)0a3ecd3
Fix Diff documentation (#237)d3c8501
Revert "Adjust for reflect.Type.NumMethod change in Go1.16 (#240)" (#242)ab46b8b
Adjust for reflect.Type.NumMethod change in Go1.16 (#240)Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
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