diff options
Diffstat (limited to 'vendor/github.com/onsi/gomega/format')
| -rw-r--r-- | vendor/github.com/onsi/gomega/format/format.go | 384 | ||||
| -rw-r--r-- | vendor/github.com/onsi/gomega/format/format_suite_test.go | 13 | ||||
| -rw-r--r-- | vendor/github.com/onsi/gomega/format/format_test.go | 590 |
3 files changed, 987 insertions, 0 deletions
diff --git a/vendor/github.com/onsi/gomega/format/format.go b/vendor/github.com/onsi/gomega/format/format.go new file mode 100644 index 0000000..a9d2651 --- /dev/null +++ b/vendor/github.com/onsi/gomega/format/format.go @@ -0,0 +1,384 @@ +/* +Gomega's format package pretty-prints objects. It explores input objects recursively and generates formatted, indented output with type information. +*/ +package format + +import ( + "fmt" + "reflect" + "strconv" + "strings" + "time" +) + +// Use MaxDepth to set the maximum recursion depth when printing deeply nested objects +var MaxDepth = uint(10) + +/* +By default, all objects (even those that implement fmt.Stringer and fmt.GoStringer) are recursively inspected to generate output. + +Set UseStringerRepresentation = true to use GoString (for fmt.GoStringers) or String (for fmt.Stringer) instead. + +Note that GoString and String don't always have all the information you need to understand why a test failed! +*/ +var UseStringerRepresentation = false + +/* +Print the content of context objects. By default it will be suppressed. + +Set PrintContextObjects = true to enable printing of the context internals. +*/ +var PrintContextObjects = false + +// Ctx interface defined here to keep backwards compatability with go < 1.7 +// It matches the context.Context interface +type Ctx interface { + Deadline() (deadline time.Time, ok bool) + Done() <-chan struct{} + Err() error + Value(key interface{}) interface{} +} + +var contextType = reflect.TypeOf((*Ctx)(nil)).Elem() +var timeType = reflect.TypeOf(time.Time{}) + +//The default indentation string emitted by the format package +var Indent = " " + +var longFormThreshold = 20 + +/* +Generates a formatted matcher success/failure message of the form: + + Expected + <pretty printed actual> + <message> + <pretty printed expected> + +If expected is omited, then the message looks like: + + Expected + <pretty printed actual> + <message> +*/ +func Message(actual interface{}, message string, expected ...interface{}) string { + if len(expected) == 0 { + return fmt.Sprintf("Expected\n%s\n%s", Object(actual, 1), message) + } else { + return fmt.Sprintf("Expected\n%s\n%s\n%s", Object(actual, 1), message, Object(expected[0], 1)) + } +} + +/* + +Generates a nicely formatted matcher success / failure message + +Much like Message(...), but it attempts to pretty print diffs in strings + +Expected + <string>: "...aaaaabaaaaa..." +to equal | + <string>: "...aaaaazaaaaa..." + +*/ + +func MessageWithDiff(actual, message, expected string) string { + if len(actual) >= truncateThreshold && len(expected) >= truncateThreshold { + diffPoint := findFirstMismatch(actual, expected) + formattedActual := truncateAndFormat(actual, diffPoint) + formattedExpected := truncateAndFormat(expected, diffPoint) + + spacesBeforeFormattedMismatch := findFirstMismatch(formattedActual, formattedExpected) + + tabLength := 4 + spaceFromMessageToActual := tabLength + len("<string>: ") - len(message) + padding := strings.Repeat(" ", spaceFromMessageToActual+spacesBeforeFormattedMismatch) + "|" + return Message(formattedActual, message+padding, formattedExpected) + } + return Message(actual, message, expected) +} + +func truncateAndFormat(str string, index int) string { + leftPadding := `...` + rightPadding := `...` + + start := index - charactersAroundMismatchToInclude + if start < 0 { + start = 0 + leftPadding = "" + } + + // slice index must include the mis-matched character + lengthOfMismatchedCharacter := 1 + end := index + charactersAroundMismatchToInclude + lengthOfMismatchedCharacter + if end > len(str) { + end = len(str) + rightPadding = "" + + } + return fmt.Sprintf("\"%s\"", leftPadding+str[start:end]+rightPadding) +} + +func findFirstMismatch(a, b string) int { + aSlice := strings.Split(a, "") + bSlice := strings.Split(b, "") + + for index, str := range aSlice { + if index > len(b) - 1 { + return index + } + if str != bSlice[index] { + return index + } + } + + if len(b) > len(a) { + return len(a) + 1 + } + + return 0 +} + +const ( + truncateThreshold = 50 + charactersAroundMismatchToInclude = 5 +) + +/* +Pretty prints the passed in object at the passed in indentation level. + +Object recurses into deeply nested objects emitting pretty-printed representations of their components. + +Modify format.MaxDepth to control how deep the recursion is allowed to go +Set format.UseStringerRepresentation to true to return object.GoString() or object.String() when available instead of +recursing into the object. + +Set PrintContextObjects to true to print the content of objects implementing context.Context +*/ +func Object(object interface{}, indentation uint) string { + indent := strings.Repeat(Indent, int(indentation)) + value := reflect.ValueOf(object) + return fmt.Sprintf("%s<%s>: %s", indent, formatType(object), formatValue(value, indentation)) +} + +/* +IndentString takes a string and indents each line by the specified amount. +*/ +func IndentString(s string, indentation uint) string { + components := strings.Split(s, "\n") + result := "" + indent := strings.Repeat(Indent, int(indentation)) + for i, component := range components { + result += indent + component + if i < len(components)-1 { + result += "\n" + } + } + + return result +} + +func formatType(object interface{}) string { + t := reflect.TypeOf(object) + if t == nil { + return "nil" + } + switch t.Kind() { + case reflect.Chan: + v := reflect.ValueOf(object) + return fmt.Sprintf("%T | len:%d, cap:%d", object, v.Len(), v.Cap()) + case reflect.Ptr: + return fmt.Sprintf("%T | %p", object, object) + case reflect.Slice: + v := reflect.ValueOf(object) + return fmt.Sprintf("%T | len:%d, cap:%d", object, v.Len(), v.Cap()) + case reflect.Map: + v := reflect.ValueOf(object) + return fmt.Sprintf("%T | len:%d", object, v.Len()) + default: + return fmt.Sprintf("%T", object) + } +} + +func formatValue(value reflect.Value, indentation uint) string { + if indentation > MaxDepth { + return "..." + } + + if isNilValue(value) { + return "nil" + } + + if UseStringerRepresentation { + if value.CanInterface() { + obj := value.Interface() + switch x := obj.(type) { + case fmt.GoStringer: + return x.GoString() + case fmt.Stringer: + return x.String() + } + } + } + + if !PrintContextObjects { + if value.Type().Implements(contextType) && indentation > 1 { + return "<suppressed context>" + } + } + + switch value.Kind() { + case reflect.Bool: + return fmt.Sprintf("%v", value.Bool()) + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + return fmt.Sprintf("%v", value.Int()) + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: + return fmt.Sprintf("%v", value.Uint()) + case reflect.Uintptr: + return fmt.Sprintf("0x%x", value.Uint()) + case reflect.Float32, reflect.Float64: + return fmt.Sprintf("%v", value.Float()) + case reflect.Complex64, reflect.Complex128: + return fmt.Sprintf("%v", value.Complex()) + case reflect.Chan: + return fmt.Sprintf("0x%x", value.Pointer()) + case reflect.Func: + return fmt.Sprintf("0x%x", value.Pointer()) + case reflect.Ptr: + return formatValue(value.Elem(), indentation) + case reflect.Slice: + return formatSlice(value, indentation) + case reflect.String: + return formatString(value.String(), indentation) + case reflect.Array: + return formatSlice(value, indentation) + case reflect.Map: + return formatMap(value, indentation) + case reflect.Struct: + if value.Type() == timeType && value.CanInterface() { + t, _ := value.Interface().(time.Time) + return t.Format(time.RFC3339Nano) + } + return formatStruct(value, indentation) + case reflect.Interface: + return formatValue(value.Elem(), indentation) + default: + if value.CanInterface() { + return fmt.Sprintf("%#v", value.Interface()) + } else { + return fmt.Sprintf("%#v", value) + } + } +} + +func formatString(object interface{}, indentation uint) string { + if indentation == 1 { + s := fmt.Sprintf("%s", object) + components := strings.Split(s, "\n") + result := "" + for i, component := range components { + if i == 0 { + result += component + } else { + result += Indent + component + } + if i < len(components)-1 { + result += "\n" + } + } + + return fmt.Sprintf("%s", result) + } else { + return fmt.Sprintf("%q", object) + } +} + +func formatSlice(v reflect.Value, indentation uint) string { + if v.Kind() == reflect.Slice && v.Type().Elem().Kind() == reflect.Uint8 && isPrintableString(string(v.Bytes())) { + return formatString(v.Bytes(), indentation) + } + + l := v.Len() + result := make([]string, l) + longest := 0 + for i := 0; i < l; i++ { + result[i] = formatValue(v.Index(i), indentation+1) + if len(result[i]) > longest { + longest = len(result[i]) + } + } + + if longest > longFormThreshold { + indenter := strings.Repeat(Indent, int(indentation)) + return fmt.Sprintf("[\n%s%s,\n%s]", indenter+Indent, strings.Join(result, ",\n"+indenter+Indent), indenter) + } else { + return fmt.Sprintf("[%s]", strings.Join(result, ", ")) + } +} + +func formatMap(v reflect.Value, indentation uint) string { + l := v.Len() + result := make([]string, l) + + longest := 0 + for i, key := range v.MapKeys() { + value := v.MapIndex(key) + result[i] = fmt.Sprintf("%s: %s", formatValue(key, indentation+1), formatValue(value, indentation+1)) + if len(result[i]) > longest { + longest = len(result[i]) + } + } + + if longest > longFormThreshold { + indenter := strings.Repeat(Indent, int(indentation)) + return fmt.Sprintf("{\n%s%s,\n%s}", indenter+Indent, strings.Join(result, ",\n"+indenter+Indent), indenter) + } else { + return fmt.Sprintf("{%s}", strings.Join(result, ", ")) + } +} + +func formatStruct(v reflect.Value, indentation uint) string { + t := v.Type() + + l := v.NumField() + result := []string{} + longest := 0 + for i := 0; i < l; i++ { + structField := t.Field(i) + fieldEntry := v.Field(i) + representation := fmt.Sprintf("%s: %s", structField.Name, formatValue(fieldEntry, indentation+1)) + result = append(result, representation) + if len(representation) > longest { + longest = len(representation) + } + } + if longest > longFormThreshold { + indenter := strings.Repeat(Indent, int(indentation)) + return fmt.Sprintf("{\n%s%s,\n%s}", indenter+Indent, strings.Join(result, ",\n"+indenter+Indent), indenter) + } else { + return fmt.Sprintf("{%s}", strings.Join(result, ", ")) + } +} + +func isNilValue(a reflect.Value) bool { + switch a.Kind() { + case reflect.Invalid: + return true + case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice: + return a.IsNil() + } + + return false +} + +/* +Returns true when the string is entirely made of printable runes, false otherwise. +*/ +func isPrintableString(str string) bool { + for _, runeValue := range str { + if !strconv.IsPrint(runeValue) { + return false + } + } + return true +} diff --git a/vendor/github.com/onsi/gomega/format/format_suite_test.go b/vendor/github.com/onsi/gomega/format/format_suite_test.go new file mode 100644 index 0000000..8e65a95 --- /dev/null +++ b/vendor/github.com/onsi/gomega/format/format_suite_test.go @@ -0,0 +1,13 @@ +package format_test + +import ( + . "github.com/onsi/ginkgo" + . "github.com/onsi/gomega" + + "testing" +) + +func TestFormat(t *testing.T) { + RegisterFailHandler(Fail) + RunSpecs(t, "Format Suite") +} diff --git a/vendor/github.com/onsi/gomega/format/format_test.go b/vendor/github.com/onsi/gomega/format/format_test.go new file mode 100644 index 0000000..a1a9031 --- /dev/null +++ b/vendor/github.com/onsi/gomega/format/format_test.go @@ -0,0 +1,590 @@ +package format_test + +import ( + "fmt" + "strings" + "time" + + . "github.com/onsi/ginkgo" + . "github.com/onsi/gomega" + . "github.com/onsi/gomega/format" + "github.com/onsi/gomega/types" +) + +//recursive struct + +type StringAlias string +type ByteAlias []byte +type IntAlias int + +type AStruct struct { + Exported string +} + +type SimpleStruct struct { + Name string + Enumeration int + Veritas bool + Data []byte + secret uint32 +} + +type ComplexStruct struct { + Strings []string + SimpleThings []*SimpleStruct + DataMaps map[int]ByteAlias +} + +type SecretiveStruct struct { + boolValue bool + intValue int + uintValue uint + uintptrValue uintptr + floatValue float32 + complexValue complex64 + chanValue chan bool + funcValue func() + pointerValue *int + sliceValue []string + byteSliceValue []byte + stringValue string + arrValue [3]int + byteArrValue [3]byte + mapValue map[string]int + structValue AStruct + interfaceValue interface{} +} + +type GoStringer struct { +} + +func (g GoStringer) GoString() string { + return "go-string" +} + +func (g GoStringer) String() string { + return "string" +} + +type Stringer struct { +} + +func (g Stringer) String() string { + return "string" +} + +type ctx struct { +} + +func (c *ctx) Deadline() (deadline time.Time, ok bool) { + return time.Time{}, false +} + +func (c *ctx) Done() <-chan struct{} { + return nil +} + +func (c *ctx) Err() error { + return nil +} + +func (c *ctx) Value(key interface{}) interface{} { + return nil +} + +var _ = Describe("Format", func() { + match := func(typeRepresentation string, valueRepresentation string, args ...interface{}) types.GomegaMatcher { + if len(args) > 0 { + valueRepresentation = fmt.Sprintf(valueRepresentation, args...) + } + return Equal(fmt.Sprintf("%s<%s>: %s", Indent, typeRepresentation, valueRepresentation)) + } + + matchRegexp := func(typeRepresentation string, valueRepresentation string, args ...interface{}) types.GomegaMatcher { + if len(args) > 0 { + valueRepresentation = fmt.Sprintf(valueRepresentation, args...) + } + return MatchRegexp(fmt.Sprintf("%s<%s>: %s", Indent, typeRepresentation, valueRepresentation)) + } + + hashMatchingRegexp := func(entries ...string) string { + entriesSwitch := "(" + strings.Join(entries, "|") + ")" + arr := make([]string, len(entries)) + for i := range arr { + arr[i] = entriesSwitch + } + return "{" + strings.Join(arr, ", ") + "}" + } + + Describe("Message", func() { + Context("with only an actual value", func() { + It("should print out an indented formatted representation of the value and the message", func() { + Ω(Message(3, "to be three.")).Should(Equal("Expected\n <int>: 3\nto be three.")) + }) + }) + + Context("with an actual and an expected value", func() { + It("should print out an indented formatted representatino of both values, and the message", func() { + Ω(Message(3, "to equal", 4)).Should(Equal("Expected\n <int>: 3\nto equal\n <int>: 4")) + }) + }) + }) + + Describe("MessageWithDiff", func() { + It("shows the exact point where two long strings differ", func() { + stringWithB := "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" + stringWithZ := "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaazaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" + + Ω(MessageWithDiff(stringWithB, "to equal", stringWithZ)).Should(Equal(expectedLongStringFailureMessage)) + }) + + It("truncates the start of long strings that differ only at their end", func() { + stringWithB := "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaab" + stringWithZ := "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaz" + + Ω(MessageWithDiff(stringWithB, "to equal", stringWithZ)).Should(Equal(expectedTruncatedStartStringFailureMessage)) + }) + + It("truncates the start of long strings that differ only in length", func() { + smallString := "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" + largeString := "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" + + Ω(MessageWithDiff(largeString, "to equal", smallString)).Should(Equal(expectedTruncatedStartSizeFailureMessage)) + Ω(MessageWithDiff(smallString, "to equal", largeString)).Should(Equal(expectedTruncatedStartSizeSwappedFailureMessage)) + }) + + It("truncates the end of long strings that differ only at their start", func() { + stringWithB := "baaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" + stringWithZ := "zaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" + + Ω(MessageWithDiff(stringWithB, "to equal", stringWithZ)).Should(Equal(expectedTruncatedEndStringFailureMessage)) + }) + }) + + Describe("IndentString", func() { + It("should indent the string", func() { + Ω(IndentString("foo\n bar\nbaz", 2)).Should(Equal(" foo\n bar\n baz")) + }) + }) + + Describe("Object", func() { + Describe("formatting boolean values", func() { + It("should give the type and format values correctly", func() { + Ω(Object(true, 1)).Should(match("bool", "true")) + Ω(Object(false, 1)).Should(match("bool", "false")) + }) + }) + + Describe("formatting numbers", func() { + It("should give the type and format values correctly", func() { + Ω(Object(int(3), 1)).Should(match("int", "3")) + Ω(Object(int8(3), 1)).Should(match("int8", "3")) + Ω(Object(int16(3), 1)).Should(match("int16", "3")) + Ω(Object(int32(3), 1)).Should(match("int32", "3")) + Ω(Object(int64(3), 1)).Should(match("int64", "3")) + + Ω(Object(uint(3), 1)).Should(match("uint", "3")) + Ω(Object(uint8(3), 1)).Should(match("uint8", "3")) + Ω(Object(uint16(3), 1)).Should(match("uint16", "3")) + Ω(Object(uint32(3), 1)).Should(match("uint32", "3")) + Ω(Object(uint64(3), 1)).Should(match("uint64", "3")) + }) + + It("should handle uintptr differently", func() { + Ω(Object(uintptr(3), 1)).Should(match("uintptr", "0x3")) + }) + }) + + Describe("formatting channels", func() { + It("should give the type and format values correctly", func() { + c := make(chan<- bool, 3) + c <- true + c <- false + Ω(Object(c, 1)).Should(match("chan<- bool | len:2, cap:3", "%v", c)) + }) + }) + + Describe("formatting strings", func() { + It("should give the type and format values correctly", func() { + s := "a\nb\nc" + Ω(Object(s, 1)).Should(match("string", `a + b + c`)) + }) + }) + + Describe("formatting []byte slices", func() { + Context("when the slice is made of printable bytes", func() { + It("should present it as string", func() { + b := []byte("a b c") + Ω(Object(b, 1)).Should(matchRegexp(`\[\]uint8 \| len:5, cap:\d+`, `a b c`)) + }) + }) + Context("when the slice contains non-printable bytes", func() { + It("should present it as slice", func() { + b := []byte("a b c\n\x01\x02\x03\xff\x1bH") + Ω(Object(b, 1)).Should(matchRegexp(`\[\]uint8 \| len:12, cap:\d+`, `\[97, 32, 98, 32, 99, 10, 1, 2, 3, 255, 27, 72\]`)) + }) + }) + }) + + Describe("formatting functions", func() { + It("should give the type and format values correctly", func() { + f := func(a string, b []int) ([]byte, error) { + return []byte("abc"), nil + } + Ω(Object(f, 1)).Should(match("func(string, []int) ([]uint8, error)", "%v", f)) + }) + }) + + Describe("formatting pointers", func() { + It("should give the type and dereference the value to format it correctly", func() { + a := 3 + Ω(Object(&a, 1)).Should(match(fmt.Sprintf("*int | %p", &a), "3")) + }) + + Context("when there are pointers to pointers...", func() { + It("should recursively deference the pointer until it gets to a value", func() { + a := 3 + var b *int + var c **int + var d ***int + b = &a + c = &b + d = &c + + Ω(Object(d, 1)).Should(match(fmt.Sprintf("***int | %p", d), "3")) + }) + }) + + Context("when the pointer points to nil", func() { + It("should say nil and not explode", func() { + var a *AStruct + Ω(Object(a, 1)).Should(match("*format_test.AStruct | 0x0", "nil")) + }) + }) + }) + + Describe("formatting arrays", func() { + It("should give the type and format values correctly", func() { + w := [3]string{"Jed Bartlet", "Toby Ziegler", "CJ Cregg"} + Ω(Object(w, 1)).Should(match("[3]string", `["Jed Bartlet", "Toby Ziegler", "CJ Cregg"]`)) + }) + + Context("with byte arrays", func() { + It("should give the type and format values correctly", func() { + w := [3]byte{17, 28, 19} + Ω(Object(w, 1)).Should(match("[3]uint8", `[17, 28, 19]`)) + }) + }) + }) + + Describe("formatting slices", func() { + It("should include the length and capacity in the type information", func() { + s := make([]bool, 3, 4) + Ω(Object(s, 1)).Should(match("[]bool | len:3, cap:4", "[false, false, false]")) + }) + + Context("when the slice contains long entries", func() { + It("should format the entries with newlines", func() { + w := []string{"Josiah Edward Bartlet", "Toby Ziegler", "CJ Cregg"} + expected := `[ + "Josiah Edward Bartlet", + "Toby Ziegler", + "CJ Cregg", + ]` + Ω(Object(w, 1)).Should(match("[]string | len:3, cap:3", expected)) + }) + }) + }) + + Describe("formatting maps", func() { + It("should include the length in the type information", func() { + m := make(map[int]bool, 5) + m[3] = true + m[4] = false + Ω(Object(m, 1)).Should(matchRegexp(`map\[int\]bool \| len:2`, hashMatchingRegexp("3: true", "4: false"))) + }) + + Context("when the slice contains long entries", func() { + It("should format the entries with newlines", func() { + m := map[string][]byte{} + m["Josiah Edward Bartlet"] = []byte("Martin Sheen") + m["Toby Ziegler"] = []byte("Richard Schiff") + m["CJ Cregg"] = []byte("Allison Janney") + expected := `{ + ("Josiah Edward Bartlet": "Martin Sheen"|"Toby Ziegler": "Richard Schiff"|"CJ Cregg": "Allison Janney"), + ("Josiah Edward Bartlet": "Martin Sheen"|"Toby Ziegler": "Richard Schiff"|"CJ Cregg": "Allison Janney"), + ("Josiah Edward Bartlet": "Martin Sheen"|"Toby Ziegler": "Richard Schiff"|"CJ Cregg": "Allison Janney"), + }` + Ω(Object(m, 1)).Should(matchRegexp(`map\[string\]\[\]uint8 \| len:3`, expected)) + }) + }) + }) + + Describe("formatting structs", func() { + It("should include the struct name and the field names", func() { + s := SimpleStruct{ + Name: "Oswald", + Enumeration: 17, + Veritas: true, + Data: []byte("datum"), + secret: 1983, + } + + Ω(Object(s, 1)).Should(match("format_test.SimpleStruct", `{Name: "Oswald", Enumeration: 17, Veritas: true, Data: "datum", secret: 1983}`)) + }) + + Context("when the struct contains long entries", func() { + It("should format the entries with new lines", func() { + s := &SimpleStruct{ + Name: "Mithrandir Gandalf Greyhame", + Enumeration: 2021, + Veritas: true, + Data: []byte("wizard"), + secret: 3, + } + + Ω(Object(s, 1)).Should(match(fmt.Sprintf("*format_test.SimpleStruct | %p", s), `{ + Name: "Mithrandir Gandalf Greyhame", + Enumeration: 2021, + Veritas: true, + Data: "wizard", + secret: 3, + }`)) + }) + }) + }) + + Describe("formatting nil values", func() { + It("should print out nil", func() { + Ω(Object(nil, 1)).Should(match("nil", "nil")) + var typedNil *AStruct + Ω(Object(typedNil, 1)).Should(match("*format_test.AStruct | 0x0", "nil")) + var c chan<- bool + Ω(Object(c, 1)).Should(match("chan<- bool | len:0, cap:0", "nil")) + var s []string + Ω(Object(s, 1)).Should(match("[]string | len:0, cap:0", "nil")) + var m map[string]bool + Ω(Object(m, 1)).Should(match("map[string]bool | len:0", "nil")) + }) + }) + + Describe("formatting aliased types", func() { + It("should print out the correct alias type", func() { + Ω(Object(StringAlias("alias"), 1)).Should(match("format_test.StringAlias", `alias`)) + Ω(Object(ByteAlias("alias"), 1)).Should(matchRegexp(`format_test\.ByteAlias \| len:5, cap:\d+`, `alias`)) + Ω(Object(IntAlias(3), 1)).Should(match("format_test.IntAlias", "3")) + }) + }) + + Describe("handling nested things", func() { + It("should produce a correctly nested representation", func() { + s := ComplexStruct{ + Strings: []string{"lots", "of", "short", "strings"}, + SimpleThings: []*SimpleStruct{ + {"short", 7, true, []byte("succinct"), 17}, + {"something longer", 427, true, []byte("designed to wrap around nicely"), 30}, + }, + DataMaps: map[int]ByteAlias{ + 17: ByteAlias("some substantially longer chunks of data"), + 1138: ByteAlias("that should make things wrap"), + }, + } + expected := `{ + Strings: \["lots", "of", "short", "strings"\], + SimpleThings: \[ + {Name: "short", Enumeration: 7, Veritas: true, Data: "succinct", secret: 17}, + { + Name: "something longer", + Enumeration: 427, + Veritas: true, + Data: "designed to wrap around nicely", + secret: 30, + }, + \], + DataMaps: { + (17: "some substantially longer chunks of data"|1138: "that should make things wrap"), + (17: "some substantially longer chunks of data"|1138: "that should make things wrap"), + }, + }` + Ω(Object(s, 1)).Should(matchRegexp(`format_test\.ComplexStruct`, expected)) + }) + }) + + Describe("formatting times", func() { + It("should format time as RFC3339", func() { + t := time.Date(2016, 10, 31, 9, 57, 23, 12345, time.UTC) + Ω(Object(t, 1)).Should(match("time.Time", `2016-10-31T09:57:23.000012345Z`)) + }) + }) + }) + + Describe("Handling unexported fields in structs", func() { + It("should handle all the various types correctly", func() { + a := int(5) + s := SecretiveStruct{ + boolValue: true, + intValue: 3, + uintValue: 4, + uintptrValue: 5, + floatValue: 6.0, + complexValue: complex(5.0, 3.0), + chanValue: make(chan bool, 2), + funcValue: func() {}, + pointerValue: &a, + sliceValue: []string{"string", "slice"}, + byteSliceValue: []byte("bytes"), + stringValue: "a string", + arrValue: [3]int{11, 12, 13}, + byteArrValue: [3]byte{17, 20, 32}, + mapValue: map[string]int{"a key": 20, "b key": 30}, + structValue: AStruct{"exported"}, + interfaceValue: map[string]int{"a key": 17}, + } + + expected := fmt.Sprintf(`{ + boolValue: true, + intValue: 3, + uintValue: 4, + uintptrValue: 0x5, + floatValue: 6, + complexValue: \(5\+3i\), + chanValue: %p, + funcValue: %p, + pointerValue: 5, + sliceValue: \["string", "slice"\], + byteSliceValue: "bytes", + stringValue: "a string", + arrValue: \[11, 12, 13\], + byteArrValue: \[17, 20, 32\], + mapValue: %s, + structValue: {Exported: "exported"}, + interfaceValue: {"a key": 17}, + }`, s.chanValue, s.funcValue, hashMatchingRegexp(`"a key": 20`, `"b key": 30`)) + + Ω(Object(s, 1)).Should(matchRegexp(`format_test\.SecretiveStruct`, expected)) + }) + }) + + Describe("Handling interfaces", func() { + It("should unpack the interface", func() { + outerHash := map[string]interface{}{} + innerHash := map[string]int{} + + innerHash["inner"] = 3 + outerHash["integer"] = 2 + outerHash["map"] = innerHash + + expected := hashMatchingRegexp(`"integer": 2`, `"map": {"inner": 3}`) + Ω(Object(outerHash, 1)).Should(matchRegexp(`map\[string\]interface {} \| len:2`, expected)) + }) + }) + + Describe("Handling recursive things", func() { + It("should not go crazy...", func() { + m := map[string]interface{}{} + m["integer"] = 2 + m["map"] = m + Ω(Object(m, 1)).Should(ContainSubstring("...")) + }) + + It("really should not go crazy...", func() { + type complexKey struct { + Value map[interface{}]int + } + + complexObject := complexKey{} + complexObject.Value = make(map[interface{}]int) + + complexObject.Value[&complexObject] = 2 + Ω(Object(complexObject, 1)).Should(ContainSubstring("...")) + }) + }) + + Describe("When instructed to use the Stringer representation", func() { + BeforeEach(func() { + UseStringerRepresentation = true + }) + + AfterEach(func() { + UseStringerRepresentation = false + }) + + Context("when passed a GoStringer", func() { + It("should use what GoString() returns", func() { + Ω(Object(GoStringer{}, 1)).Should(ContainSubstring("<format_test.GoStringer>: go-string")) + }) + }) + + Context("when passed a stringer", func() { + It("should use what String() returns", func() { + Ω(Object(Stringer{}, 1)).Should(ContainSubstring("<format_test.Stringer>: string")) + }) + }) + }) + + Describe("Printing a context.Context field", func() { + + type structWithContext struct { + Context Ctx + Value string + } + + context := ctx{} + objWithContext := structWithContext{Value: "some-value", Context: &context} + + It("Suppresses the content by default", func() { + Ω(Object(objWithContext, 1)).Should(ContainSubstring("<suppressed context>")) + }) + + It("Doesn't supress the context if it's the object being printed", func() { + Ω(Object(context, 1)).ShouldNot(MatchRegexp("^.*<suppressed context>$")) + }) + + Context("PrintContextObjects is set", func() { + BeforeEach(func() { + PrintContextObjects = true + }) + + AfterEach(func() { + PrintContextObjects = false + }) + + It("Prints the context", func() { + Ω(Object(objWithContext, 1)).ShouldNot(ContainSubstring("<suppressed context>")) + }) + }) + }) +}) + +var expectedLongStringFailureMessage = strings.TrimSpace(` +Expected + <string>: "...aaaaabaaaaa..." +to equal | + <string>: "...aaaaazaaaaa..." +`) +var expectedTruncatedEndStringFailureMessage = strings.TrimSpace(` +Expected + <string>: "baaaaa..." +to equal | + <string>: "zaaaaa..." +`) +var expectedTruncatedStartStringFailureMessage = strings.TrimSpace(` +Expected + <string>: "...aaaaab" +to equal | + <string>: "...aaaaaz" +`) +var expectedTruncatedStartSizeFailureMessage = strings.TrimSpace(` +Expected + <string>: "...aaaaaa" +to equal | + <string>: "...aaaaa" +`) +var expectedTruncatedStartSizeSwappedFailureMessage = strings.TrimSpace(` +Expected + <string>: "...aaaa" +to equal | + <string>: "...aaaaa" +`) |