doc: add godoc links

See https://go.dev/doc/comment#doclinks

assert/assert.go

@@ -4,7 +4,7 @@ values in tests. When an assertion fails a helpful error message is printed.
 
 # Example usage
 
-All the assertions in this package use testing.T.Helper to mark themselves as
+All the assertions in this package use [testing.T.Helper] to mark themselves as
 test helpers. This allows the testing package to print the filename and line
 number of the file function that failed.
 
@@ -67,19 +67,19 @@ message is omitted from these examples for brevity.
 
 # Assert and Check
 
-Assert and Check are very similar, they both accept a Comparison, and fail
+[Assert] and [Check] are very similar, they both accept a [cmp.Comparison], and fail
 the test when the comparison fails. The one difference is that Assert uses
-testing.T.FailNow to fail the test, which will end the test execution immediately.
-Check uses testing.T.Fail to fail the test, which allows it to return the
+[testing.T.FailNow] to fail the test, which will end the test execution immediately.
+Check uses [testing.T.Fail] to fail the test, which allows it to return the
 result of the comparison, then proceed with the rest of the test case.
 
-Like testing.T.FailNow, Assert must be called from the goroutine running the test,
-not from other goroutines created during the test. Check is safe to use from any
+Like [testing.T.FailNow], [Assert] must be called from the goroutine running the test,
+not from other goroutines created during the test. [Check] is safe to use from any
 goroutine.
 
 # Comparisons
 
-Package http://pkg.go.dev/gotest.tools/v3/assert/cmp provides
+Package [gotest.tools/v3/assert/cmp] provides
 many common comparisons. Additional comparisons can be written to compare
 values in other ways. See the example Assert (CustomComparison).
 
@@ -98,11 +98,11 @@ import (
 	"gotest.tools/v3/internal/assert"
 )
 
-// BoolOrComparison can be a bool, cmp.Comparison, or error. See Assert for
+// BoolOrComparison can be a bool, [cmp.Comparison], or error. See [Assert] for
 // details about how this type is used.
 type BoolOrComparison interface{}
 
-// TestingT is the subset of testing.T used by the assert package.
+// TestingT is the subset of [testing.T] (see also [testing.TB]) used by the assert package.
 type TestingT interface {
 	FailNow()
 	Fail()
@@ -133,11 +133,11 @@ type helperT interface {
 //
 // Extra details can be added to the failure message using msgAndArgs. msgAndArgs
 // may be either a single string, or a format string and args that will be
-// passed to fmt.Sprintf.
+// passed to [fmt.Sprintf].
 //
-// Assert uses t.FailNow to fail the test. Like t.FailNow, Assert must be called
+// Assert uses [testing.TB.FailNow] to fail the test. Like t.FailNow, Assert must be called
 // from the goroutine running the test function, not from other
-// goroutines created during the test. Use Check from other goroutines.
+// goroutines created during the test. Use [Check] from other goroutines.
 func Assert(t TestingT, comparison BoolOrComparison, msgAndArgs ...interface{}) {
 	if ht, ok := t.(helperT); ok {
 		ht.Helper()
@@ -151,7 +151,7 @@ func Assert(t TestingT, comparison BoolOrComparison, msgAndArgs ...interface{})
 // failed, a failure message is printed, and Check returns false. If the comparison
 // is successful Check returns true. Check may be called from any goroutine.
 //
-// See Assert for details about the comparison arg and failure messages.
+// See [Assert] for details about the comparison arg and failure messages.
 func Check(t TestingT, comparison BoolOrComparison, msgAndArgs ...interface{}) bool {
 	if ht, ok := t.(helperT); ok {
 		ht.Helper()
@@ -166,9 +166,9 @@ func Check(t TestingT, comparison BoolOrComparison, msgAndArgs ...interface{}) b
 // NilError fails the test immediately if err is not nil, and includes err.Error
 // in the failure message.
 //
-// NilError uses t.FailNow to fail the test. Like t.FailNow, NilError must be
+// NilError uses [testing.TB.FailNow] to fail the test. Like t.FailNow, NilError must be
 // called from the goroutine running the test function, not from other
-// goroutines created during the test. Use Check from other goroutines.
+// goroutines created during the test. Use [Check] from other goroutines.
 func NilError(t TestingT, err error, msgAndArgs ...interface{}) {
 	if ht, ok := t.(helperT); ok {
 		ht.Helper()
@@ -193,9 +193,9 @@ func NilError(t TestingT, err error, msgAndArgs ...interface{}) {
 // the unified diff will be augmented by replacing whitespace characters with
 // visible characters to identify the whitespace difference.
 //
-// Equal uses t.FailNow to fail the test. Like t.FailNow, Equal must be
+// Equal uses [testing.T.FailNow] to fail the test. Like t.FailNow, Equal must be
 // called from the goroutine running the test function, not from other
-// goroutines created during the test. Use Check with cmp.Equal from other
+// goroutines created during the test. Use [Check] with [cmp.Equal] from other
 // goroutines.
 func Equal(t TestingT, x, y interface{}, msgAndArgs ...interface{}) {
 	if ht, ok := t.(helperT); ok {
@@ -206,15 +206,15 @@ func Equal(t TestingT, x, y interface{}, msgAndArgs ...interface{}) {
 	}
 }
 
-// DeepEqual uses google/go-cmp (https://godoc.org/github.com/google/go-cmp/cmp)
+// DeepEqual uses [github.com/google/go-cmp/cmp]
 // to assert two values are equal and fails the test if they are not equal.
 //
-// Package http://pkg.go.dev/gotest.tools/v3/assert/opt provides some additional
+// Package [gotest.tools/v3/assert/opt] provides some additional
 // commonly used Options.
 //
-// DeepEqual uses t.FailNow to fail the test. Like t.FailNow, DeepEqual must be
+// DeepEqual uses [testing.T.FailNow] to fail the test. Like t.FailNow, DeepEqual must be
 // called from the goroutine running the test function, not from other
-// goroutines created during the test. Use Check with cmp.DeepEqual from other
+// goroutines created during the test. Use [Check] with [cmp.DeepEqual] from other
 // goroutines.
 func DeepEqual(t TestingT, x, y interface{}, opts ...gocmp.Option) {
 	if ht, ok := t.(helperT); ok {
@@ -227,13 +227,13 @@ func DeepEqual(t TestingT, x, y interface{}, opts ...gocmp.Option) {
 
 // Error fails the test if err is nil, or if err.Error is not equal to expected.
 // Both err.Error and expected will be included in the failure message.
-// Error performs an exact match of the error text. Use ErrorContains if only
-// part of the error message is relevant. Use ErrorType or ErrorIs to compare
+// Error performs an exact match of the error text. Use [ErrorContains] if only
+// part of the error message is relevant. Use [ErrorType] or [ErrorIs] to compare
 // errors by type.
 //
-// Error uses t.FailNow to fail the test. Like t.FailNow, Error must be
+// Error uses [testing.T.FailNow] to fail the test. Like t.FailNow, Error must be
 // called from the goroutine running the test function, not from other
-// goroutines created during the test. Use Check with cmp.Error from other
+// goroutines created during the test. Use [Check] with [cmp.Error] from other
 // goroutines.
 func Error(t TestingT, err error, expected string, msgAndArgs ...interface{}) {
 	if ht, ok := t.(helperT); ok {
@@ -248,9 +248,9 @@ func Error(t TestingT, err error, expected string, msgAndArgs ...interface{}) {
 // contain the expected substring. Both err.Error and the expected substring
 // will be included in the failure message.
 //
-// ErrorContains uses t.FailNow to fail the test. Like t.FailNow, ErrorContains
+// ErrorContains uses [testing.T.FailNow] to fail the test. Like t.FailNow, ErrorContains
 // must be called from the goroutine running the test function, not from other
-// goroutines created during the test. Use Check with cmp.ErrorContains from other
+// goroutines created during the test. Use [Check] with [cmp.ErrorContains] from other
 // goroutines.
 func ErrorContains(t TestingT, err error, substring string, msgAndArgs ...interface{}) {
 	if ht, ok := t.(helperT); ok {
@@ -280,12 +280,12 @@ func ErrorContains(t TestingT, err error, substring string, msgAndArgs ...interf
 //	reflect.Type
 //	  The assertion fails if err does not implement the reflect.Type.
 //
-// ErrorType uses t.FailNow to fail the test. Like t.FailNow, ErrorType
+// ErrorType uses [testing.T.FailNow] to fail the test. Like t.FailNow, ErrorType
 // must be called from the goroutine running the test function, not from other
-// goroutines created during the test. Use Check with cmp.ErrorType from other
+// goroutines created during the test. Use [Check] with [cmp.ErrorType] from other
 // goroutines.
 //
-// Deprecated: Use ErrorIs
+// Deprecated: Use [ErrorIs]
 func ErrorType(t TestingT, err error, expected interface{}, msgAndArgs ...interface{}) {
 	if ht, ok := t.(helperT); ok {
 		ht.Helper()
@@ -296,12 +296,12 @@ func ErrorType(t TestingT, err error, expected interface{}, msgAndArgs ...interf
 }
 
 // ErrorIs fails the test if err is nil, or the error does not match expected
-// when compared using errors.Is. See https://golang.org/pkg/errors/#Is for
+// when compared using errors.Is. See [errors.Is] for
 // accepted arguments.
 //
-// ErrorIs uses t.FailNow to fail the test. Like t.FailNow, ErrorIs
+// ErrorIs uses [testing.T.FailNow] to fail the test. Like t.FailNow, ErrorIs
 // must be called from the goroutine running the test function, not from other
-// goroutines created during the test. Use Check with cmp.ErrorIs from other
+// goroutines created during the test. Use [Check] with [cmp.ErrorIs] from other
 // goroutines.
 func ErrorIs(t TestingT, err error, expected error, msgAndArgs ...interface{}) {
 	if ht, ok := t.(helperT); ok {

assert/cmd/gty-migrate-from-testify/doc.go

@@ -1,6 +1,6 @@
 /*
 Command gty-migrate-from-testify migrates packages from
-testify/assert and testify/require to gotest.tools/v3/assert.
+testify/assert and testify/require to [gotest.tools/v3/assert].
 
 	$ go get gotest.tools/v3/assert/cmd/gty-migrate-from-testify
 

assert/cmp/compare.go

@@ -12,17 +12,16 @@ import (
 	"gotest.tools/v3/internal/format"
 )
 
-// Comparison is a function which compares values and returns ResultSuccess if
+// Comparison is a function which compares values and returns [ResultSuccess] if
 // the actual value matches the expected value. If the values do not match the
-// Result will contain a message about why it failed.
+// [Result] will contain a message about why it failed.
 type Comparison func() Result
 
-// DeepEqual compares two values using google/go-cmp
-// (https://godoc.org/github.com/google/go-cmp/cmp)
+// DeepEqual compares two values using [github.com/google/go-cmp/cmp]
 // and succeeds if the values are equal.
 //
 // The comparison can be customized using comparison Options.
-// Package http://pkg.go.dev/gotest.tools/v3/assert/opt provides some additional
+// Package [gotest.tools/v3/assert/opt] provides some additional
 // commonly used Options.
 func DeepEqual(x, y interface{}, opts ...cmp.Option) Comparison {
 	return func() (result Result) {
@@ -61,7 +60,7 @@ func toResult(success bool, msg string) Result {
 	return ResultFailure(msg)
 }
 
-// RegexOrPattern may be either a *regexp.Regexp or a string that is a valid
+// RegexOrPattern may be either a [*regexp.Regexp] or a string that is a valid
 // regexp pattern.
 type RegexOrPattern interface{}
 
@@ -95,7 +94,7 @@ func Regexp(re RegexOrPattern, v string) Comparison {
 	}
 }
 
-// Equal succeeds if x == y. See assert.Equal for full documentation.
+// Equal succeeds if x == y. See [gotest.tools/v3/assert.Equal] for full documentation.
 func Equal(x, y interface{}) Comparison {
 	return func() Result {
 		switch {
@@ -159,10 +158,10 @@ func Len(seq interface{}, expected int) Comparison {
 // slice, or array.
 //
 // If collection is a string, item must also be a string, and is compared using
-// strings.Contains().
+// [strings.Contains].
 // If collection is a Map, contains will succeed if item is a key in the map.
 // If collection is a slice or array, item is compared to each item in the
-// sequence using reflect.DeepEqual().
+// sequence using [reflect.DeepEqual].
 func Contains(collection interface{}, item interface{}) Comparison {
 	return func() Result {
 		colValue := reflect.ValueOf(collection)
@@ -259,7 +258,7 @@ func formatErrorMessage(err error) string {
 
 // Nil succeeds if obj is a nil interface, pointer, or function.
 //
-// Use NilError() for comparing errors. Use Len(obj, 0) for comparing slices,
+// Use [gotest.tools/v3/assert.NilError] for comparing errors. Use Len(obj, 0) for comparing slices,
 // maps, and channels.
 func Nil(obj interface{}) Comparison {
 	msgFunc := func(value reflect.Value) string {
@@ -306,9 +305,9 @@ func isNil(obj interface{}, msgFunc func(reflect.Value) string) Comparison {
 //
 //	reflect.Type
 //
-// Fails if err does not implement the reflect.Type.
+// Fails if err does not implement the [reflect.Type].
 //
-// Deprecated: Use ErrorIs
+// Deprecated: Use [ErrorIs]
 func ErrorType(err error, expected interface{}) Comparison {
 	return func() Result {
 		switch expectedType := expected.(type) {
@@ -383,7 +382,7 @@ var (
 )
 
 // ErrorIs succeeds if errors.Is(actual, expected) returns true. See
-// https://golang.org/pkg/errors/#Is for accepted argument values.
+// [errors.Is] for accepted argument values.
 func ErrorIs(actual error, expected error) Comparison {
 	return func() Result {
 		if errors.Is(actual, expected) {

assert/cmp/result.go

@@ -10,12 +10,12 @@ import (
 	"gotest.tools/v3/internal/source"
 )
 
-// A Result of a Comparison.
+// A Result of a [Comparison].
 type Result interface {
 	Success() bool
 }
 
-// StringResult is an implementation of Result that reports the error message
+// StringResult is an implementation of [Result] that reports the error message
 // string verbatim and does not provide any templating or formatting of the
 // message.
 type StringResult struct {
@@ -34,16 +34,16 @@ func (r StringResult) FailureMessage() string {
 	return r.message
 }
 
-// ResultSuccess is a constant which is returned by a ComparisonWithResult to
+// ResultSuccess is a constant which is returned by a [Comparison] to
 // indicate success.
 var ResultSuccess = StringResult{success: true}
 
-// ResultFailure returns a failed Result with a failure message.
+// ResultFailure returns a failed [Result] with a failure message.
 func ResultFailure(message string) StringResult {
 	return StringResult{message: message}
 }
 
-// ResultFromError returns ResultSuccess if err is nil. Otherwise ResultFailure
+// ResultFromError returns [ResultSuccess] if err is nil. Otherwise [ResultFailure]
 // is returned with the error message as the failure message.
 func ResultFromError(err error) Result {
 	if err == nil {
@@ -74,7 +74,7 @@ func (r templatedResult) UpdatedExpected(stackIndex int) error {
 	return source.UpdateExpectedValue(stackIndex+1, r.data["x"], r.data["y"])
 }
 
-// ResultFailureTemplate returns a Result with a template string and data which
+// ResultFailureTemplate returns a [Result] with a template string and data which
 // can be used to format a failure message. The template may access data from .Data,
 // the comparison args with the callArg function, and the formatNode function may
 // be used to format the call args.

assert/opt/opt.go

@@ -11,7 +11,7 @@ import (
 	gocmp "github.com/google/go-cmp/cmp"
 )
 
-// DurationWithThreshold returns a gocmp.Comparer for comparing time.Duration. The
+// DurationWithThreshold returns a [gocmp.Comparer] for comparing [time.Duration]. The
 // Comparer returns true if the difference between the two Duration values is
 // within the threshold and neither value is zero.
 func DurationWithThreshold(threshold time.Duration) gocmp.Option {
@@ -28,7 +28,7 @@ func cmpDuration(threshold time.Duration) func(x, y time.Duration) bool {
 	}
 }
 
-// TimeWithThreshold returns a gocmp.Comparer for comparing time.Time. The
+// TimeWithThreshold returns a [gocmp.Comparer] for comparing [time.Time]. The
 // Comparer returns true if the difference between the two Time values is
 // within the threshold and neither value is zero.
 func TimeWithThreshold(threshold time.Duration) gocmp.Option {
@@ -45,12 +45,12 @@ func cmpTime(threshold time.Duration) func(x, y time.Time) bool {
 	}
 }
 
-// PathString is a gocmp.FilterPath filter that returns true when path.String()
+// PathString is a [gocmp.FilterPath] filter that returns true when path.String()
 // matches any of the specs.
 //
 // The path spec is a dot separated string where each segment is a field name.
 // Slices, Arrays, and Maps are always matched against every element in the
-// sequence. gocmp.Indirect, gocmp.Transform, and gocmp.TypeAssertion are always
+// sequence. [gocmp.Indirect], [gocmp.Transform], and [gocmp.TypeAssertion] are always
 // ignored.
 //
 // Note: this path filter is not type safe. Incorrect paths will be silently
@@ -66,7 +66,7 @@ func PathString(specs ...string) func(path gocmp.Path) bool {
 	}
 }
 
-// PathDebug is a gocmp.FilerPath filter that always returns false. It prints
+// PathDebug is a [gocmp.FilterPath] filter that always returns false. It prints
 // each path it receives. It can be used to debug path matching problems.
 func PathDebug(path gocmp.Path) bool {
 	fmt.Printf("PATH string=%s gostring=%s\n", path, path.GoString())
@@ -95,7 +95,7 @@ func stepTypeFields(step gocmp.PathStep) string {
 	return ""
 }
 
-// PathField is a gocmp.FilerPath filter that matches a struct field by name.
+// PathField is a [gocmp.FilterPath] filter that matches a struct field by name.
 // PathField will match every instance of the field in a recursive or nested
 // structure.
 func PathField(structType interface{}, field string) func(gocmp.Path) bool {