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assertions_test.go
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assertions_test.go
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package assert
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
"math"
"os"
"reflect"
"regexp"
"runtime"
"strings"
"testing"
"time"
)
var (
i interface{}
zeros = []interface{}{
false,
byte(0),
complex64(0),
complex128(0),
float32(0),
float64(0),
int(0),
int8(0),
int16(0),
int32(0),
int64(0),
rune(0),
uint(0),
uint8(0),
uint16(0),
uint32(0),
uint64(0),
uintptr(0),
"",
[0]interface{}{},
[]interface{}(nil),
struct{ x int }{},
(*interface{})(nil),
(func())(nil),
nil,
interface{}(nil),
map[interface{}]interface{}(nil),
(chan interface{})(nil),
(<-chan interface{})(nil),
(chan<- interface{})(nil),
}
nonZeros = []interface{}{
true,
byte(1),
complex64(1),
complex128(1),
float32(1),
float64(1),
int(1),
int8(1),
int16(1),
int32(1),
int64(1),
rune(1),
uint(1),
uint8(1),
uint16(1),
uint32(1),
uint64(1),
uintptr(1),
"s",
[1]interface{}{1},
[]interface{}{},
struct{ x int }{1},
(*interface{})(&i),
(func())(func() {}),
interface{}(1),
map[interface{}]interface{}{},
(chan interface{})(make(chan interface{})),
(<-chan interface{})(make(chan interface{})),
(chan<- interface{})(make(chan interface{})),
}
)
// AssertionTesterInterface defines an interface to be used for testing assertion methods
type AssertionTesterInterface interface {
TestMethod()
}
// AssertionTesterConformingObject is an object that conforms to the AssertionTesterInterface interface
type AssertionTesterConformingObject struct {
}
func (a *AssertionTesterConformingObject) TestMethod() {
}
// AssertionTesterNonConformingObject is an object that does not conform to the AssertionTesterInterface interface
type AssertionTesterNonConformingObject struct {
}
func TestObjectsAreEqual(t *testing.T) {
if !ObjectsAreEqual("Hello World", "Hello World") {
t.Error("objectsAreEqual should return true")
}
if !ObjectsAreEqual(123, 123) {
t.Error("objectsAreEqual should return true")
}
if !ObjectsAreEqual(123.5, 123.5) {
t.Error("objectsAreEqual should return true")
}
if !ObjectsAreEqual([]byte("Hello World"), []byte("Hello World")) {
t.Error("objectsAreEqual should return true")
}
if !ObjectsAreEqual(nil, nil) {
t.Error("objectsAreEqual should return true")
}
if ObjectsAreEqual(map[int]int{5: 10}, map[int]int{10: 20}) {
t.Error("objectsAreEqual should return false")
}
if ObjectsAreEqual('x', "x") {
t.Error("objectsAreEqual should return false")
}
if ObjectsAreEqual("x", 'x') {
t.Error("objectsAreEqual should return false")
}
if ObjectsAreEqual(0, 0.1) {
t.Error("objectsAreEqual should return false")
}
if ObjectsAreEqual(0.1, 0) {
t.Error("objectsAreEqual should return false")
}
if ObjectsAreEqual(uint32(10), int32(10)) {
t.Error("objectsAreEqual should return false")
}
if !ObjectsAreEqualValues(uint32(10), int32(10)) {
t.Error("ObjectsAreEqualValues should return true")
}
if ObjectsAreEqualValues(0, nil) {
t.Fail()
}
if ObjectsAreEqualValues(nil, 0) {
t.Fail()
}
}
func TestImplements(t *testing.T) {
mockT := new(testing.T)
if !Implements(mockT, (*AssertionTesterInterface)(nil), new(AssertionTesterConformingObject)) {
t.Error("Implements method should return true: AssertionTesterConformingObject implements AssertionTesterInterface")
}
if Implements(mockT, (*AssertionTesterInterface)(nil), new(AssertionTesterNonConformingObject)) {
t.Error("Implements method should return false: AssertionTesterNonConformingObject does not implements AssertionTesterInterface")
}
if Implements(mockT, (*AssertionTesterInterface)(nil), nil) {
t.Error("Implements method should return false: nil does not implement AssertionTesterInterface")
}
}
func TestIsType(t *testing.T) {
mockT := new(testing.T)
if !IsType(mockT, new(AssertionTesterConformingObject), new(AssertionTesterConformingObject)) {
t.Error("IsType should return true: AssertionTesterConformingObject is the same type as AssertionTesterConformingObject")
}
if IsType(mockT, new(AssertionTesterConformingObject), new(AssertionTesterNonConformingObject)) {
t.Error("IsType should return false: AssertionTesterConformingObject is not the same type as AssertionTesterNonConformingObject")
}
}
type myType string
func TestEqual(t *testing.T) {
mockT := new(testing.T)
if !Equal(mockT, "Hello World", "Hello World") {
t.Error("Equal should return true")
}
if !Equal(mockT, 123, 123) {
t.Error("Equal should return true")
}
if !Equal(mockT, 123.5, 123.5) {
t.Error("Equal should return true")
}
if !Equal(mockT, []byte("Hello World"), []byte("Hello World")) {
t.Error("Equal should return true")
}
if !Equal(mockT, nil, nil) {
t.Error("Equal should return true")
}
if !Equal(mockT, int32(123), int32(123)) {
t.Error("Equal should return true")
}
if !Equal(mockT, uint64(123), uint64(123)) {
t.Error("Equal should return true")
}
if !Equal(mockT, myType("1"), myType("1")) {
t.Error("Equal should return true")
}
if !Equal(mockT, &struct{}{}, &struct{}{}) {
t.Error("Equal should return true (pointer equality is based on equality of underlying value)")
}
var m map[string]interface{}
if Equal(mockT, m["bar"], "something") {
t.Error("Equal should return false")
}
if Equal(mockT, myType("1"), myType("2")) {
t.Error("Equal should return false")
}
}
// bufferT implements TestingT. Its implementation of Errorf writes the output that would be produced by
// testing.T.Errorf to an internal bytes.Buffer.
type bufferT struct {
buf bytes.Buffer
}
func (t *bufferT) Errorf(format string, args ...interface{}) {
// implementation of decorate is copied from testing.T
decorate := func(s string) string {
_, file, line, ok := runtime.Caller(3) // decorate + log + public function.
if ok {
// Truncate file name at last file name separator.
if index := strings.LastIndex(file, "/"); index >= 0 {
file = file[index+1:]
} else if index = strings.LastIndex(file, "\\"); index >= 0 {
file = file[index+1:]
}
} else {
file = "???"
line = 1
}
buf := new(bytes.Buffer)
// Every line is indented at least one tab.
buf.WriteByte('\t')
fmt.Fprintf(buf, "%s:%d: ", file, line)
lines := strings.Split(s, "\n")
if l := len(lines); l > 1 && lines[l-1] == "" {
lines = lines[:l-1]
}
for i, line := range lines {
if i > 0 {
// Second and subsequent lines are indented an extra tab.
buf.WriteString("\n\t\t")
}
buf.WriteString(line)
}
buf.WriteByte('\n')
return buf.String()
}
t.buf.WriteString(decorate(fmt.Sprintf(format, args...)))
}
func TestStringEqual(t *testing.T) {
for i, currCase := range []struct {
equalWant string
equalGot string
msgAndArgs []interface{}
want string
}{
{equalWant: "hi, \nmy name is", equalGot: "what,\nmy name is", want: "\tassertions.go:\\d+: \n\t+Error Trace:\t\n\t+Error:\\s+Not equal:\\s+\n\\s+expected: \"hi, \\\\nmy name is\"\n\\s+actual\\s+: \"what,\\\\nmy name is\"\n\\s+Diff:\n\\s+-+ Expected\n\\s+\\++ Actual\n\\s+@@ -1,2 \\+1,2 @@\n\\s+-hi, \n\\s+\\+what,\n\\s+my name is"},
} {
mockT := &bufferT{}
Equal(mockT, currCase.equalWant, currCase.equalGot, currCase.msgAndArgs...)
Regexp(t, regexp.MustCompile(currCase.want), mockT.buf.String(), "Case %d", i)
}
}
func TestEqualFormatting(t *testing.T) {
for i, currCase := range []struct {
equalWant string
equalGot string
msgAndArgs []interface{}
want string
}{
{equalWant: "want", equalGot: "got", want: "\tassertions.go:\\d+: \n\t+Error Trace:\t\n\t+Error:\\s+Not equal:\\s+\n\\s+expected: \"want\"\n\\s+actual\\s+: \"got\"\n\\s+Diff:\n\\s+-+ Expected\n\\s+\\++ Actual\n\\s+@@ -1 \\+1 @@\n\\s+-want\n\\s+\\+got\n"},
{equalWant: "want", equalGot: "got", msgAndArgs: []interface{}{"hello, %v!", "world"}, want: "\tassertions.go:[0-9]+: \n\t+Error Trace:\t\n\t+Error:\\s+Not equal:\\s+\n\\s+expected: \"want\"\n\\s+actual\\s+: \"got\"\n\\s+Diff:\n\\s+-+ Expected\n\\s+\\++ Actual\n\\s+@@ -1 \\+1 @@\n\\s+-want\n\\s+\\+got\n\\s+Messages:\\s+hello, world!\n"},
{equalWant: "want", equalGot: "got", msgAndArgs: []interface{}{123}, want: "\tassertions.go:[0-9]+: \n\t+Error Trace:\t\n\t+Error:\\s+Not equal:\\s+\n\\s+expected: \"want\"\n\\s+actual\\s+: \"got\"\n\\s+Diff:\n\\s+-+ Expected\n\\s+\\++ Actual\n\\s+@@ -1 \\+1 @@\n\\s+-want\n\\s+\\+got\n\\s+Messages:\\s+123\n"},
{equalWant: "want", equalGot: "got", msgAndArgs: []interface{}{struct{ a string }{"hello"}}, want: "\tassertions.go:[0-9]+: \n\t+Error Trace:\t\n\t+Error:\\s+Not equal:\\s+\n\\s+expected: \"want\"\n\\s+actual\\s+: \"got\"\n\\s+Diff:\n\\s+-+ Expected\n\\s+\\++ Actual\n\\s+@@ -1 \\+1 @@\n\\s+-want\n\\s+\\+got\n\\s+Messages:\\s+{a:hello}\n"},
} {
mockT := &bufferT{}
Equal(mockT, currCase.equalWant, currCase.equalGot, currCase.msgAndArgs...)
Regexp(t, regexp.MustCompile(currCase.want), mockT.buf.String(), "Case %d", i)
}
}
func TestFormatUnequalValues(t *testing.T) {
expected, actual := formatUnequalValues("foo", "bar")
Equal(t, `"foo"`, expected, "value should not include type")
Equal(t, `"bar"`, actual, "value should not include type")
expected, actual = formatUnequalValues(123, 123)
Equal(t, `123`, expected, "value should not include type")
Equal(t, `123`, actual, "value should not include type")
expected, actual = formatUnequalValues(int64(123), int32(123))
Equal(t, `int64(123)`, expected, "value should include type")
Equal(t, `int32(123)`, actual, "value should include type")
expected, actual = formatUnequalValues(int64(123), nil)
Equal(t, `int64(123)`, expected, "value should include type")
Equal(t, `<nil>(<nil>)`, actual, "value should include type")
type testStructType struct {
Val string
}
expected, actual = formatUnequalValues(&testStructType{Val: "test"}, &testStructType{Val: "test"})
Equal(t, `&assert.testStructType{Val:"test"}`, expected, "value should not include type annotation")
Equal(t, `&assert.testStructType{Val:"test"}`, actual, "value should not include type annotation")
}
func TestNotNil(t *testing.T) {
mockT := new(testing.T)
if !NotNil(mockT, new(AssertionTesterConformingObject)) {
t.Error("NotNil should return true: object is not nil")
}
if NotNil(mockT, nil) {
t.Error("NotNil should return false: object is nil")
}
if NotNil(mockT, (*struct{})(nil)) {
t.Error("NotNil should return false: object is (*struct{})(nil)")
}
}
func TestNil(t *testing.T) {
mockT := new(testing.T)
if !Nil(mockT, nil) {
t.Error("Nil should return true: object is nil")
}
if !Nil(mockT, (*struct{})(nil)) {
t.Error("Nil should return true: object is (*struct{})(nil)")
}
if Nil(mockT, new(AssertionTesterConformingObject)) {
t.Error("Nil should return false: object is not nil")
}
}
func TestTrue(t *testing.T) {
mockT := new(testing.T)
if !True(mockT, true) {
t.Error("True should return true")
}
if True(mockT, false) {
t.Error("True should return false")
}
}
func TestFalse(t *testing.T) {
mockT := new(testing.T)
if !False(mockT, false) {
t.Error("False should return true")
}
if False(mockT, true) {
t.Error("False should return false")
}
}
func TestExactly(t *testing.T) {
mockT := new(testing.T)
a := float32(1)
b := float64(1)
c := float32(1)
d := float32(2)
if Exactly(mockT, a, b) {
t.Error("Exactly should return false")
}
if Exactly(mockT, a, d) {
t.Error("Exactly should return false")
}
if !Exactly(mockT, a, c) {
t.Error("Exactly should return true")
}
if Exactly(mockT, nil, a) {
t.Error("Exactly should return false")
}
if Exactly(mockT, a, nil) {
t.Error("Exactly should return false")
}
}
func TestNotEqual(t *testing.T) {
mockT := new(testing.T)
if !NotEqual(mockT, "Hello World", "Hello World!") {
t.Error("NotEqual should return true")
}
if !NotEqual(mockT, 123, 1234) {
t.Error("NotEqual should return true")
}
if !NotEqual(mockT, 123.5, 123.55) {
t.Error("NotEqual should return true")
}
if !NotEqual(mockT, []byte("Hello World"), []byte("Hello World!")) {
t.Error("NotEqual should return true")
}
if !NotEqual(mockT, nil, new(AssertionTesterConformingObject)) {
t.Error("NotEqual should return true")
}
funcA := func() int { return 23 }
funcB := func() int { return 42 }
if NotEqual(mockT, funcA, funcB) {
t.Error("NotEqual should return false")
}
if NotEqual(mockT, "Hello World", "Hello World") {
t.Error("NotEqual should return false")
}
if NotEqual(mockT, 123, 123) {
t.Error("NotEqual should return false")
}
if NotEqual(mockT, 123.5, 123.5) {
t.Error("NotEqual should return false")
}
if NotEqual(mockT, []byte("Hello World"), []byte("Hello World")) {
t.Error("NotEqual should return false")
}
if NotEqual(mockT, new(AssertionTesterConformingObject), new(AssertionTesterConformingObject)) {
t.Error("NotEqual should return false")
}
if NotEqual(mockT, &struct{}{}, &struct{}{}) {
t.Error("NotEqual should return false")
}
}
type A struct {
Name, Value string
}
func TestContains(t *testing.T) {
mockT := new(testing.T)
list := []string{"Foo", "Bar"}
complexList := []*A{
{"b", "c"},
{"d", "e"},
{"g", "h"},
{"j", "k"},
}
simpleMap := map[interface{}]interface{}{"Foo": "Bar"}
if !Contains(mockT, "Hello World", "Hello") {
t.Error("Contains should return true: \"Hello World\" contains \"Hello\"")
}
if Contains(mockT, "Hello World", "Salut") {
t.Error("Contains should return false: \"Hello World\" does not contain \"Salut\"")
}
if !Contains(mockT, list, "Bar") {
t.Error("Contains should return true: \"[\"Foo\", \"Bar\"]\" contains \"Bar\"")
}
if Contains(mockT, list, "Salut") {
t.Error("Contains should return false: \"[\"Foo\", \"Bar\"]\" does not contain \"Salut\"")
}
if !Contains(mockT, complexList, &A{"g", "h"}) {
t.Error("Contains should return true: complexList contains {\"g\", \"h\"}")
}
if Contains(mockT, complexList, &A{"g", "e"}) {
t.Error("Contains should return false: complexList contains {\"g\", \"e\"}")
}
if Contains(mockT, complexList, &A{"g", "e"}) {
t.Error("Contains should return false: complexList contains {\"g\", \"e\"}")
}
if !Contains(mockT, simpleMap, "Foo") {
t.Error("Contains should return true: \"{\"Foo\": \"Bar\"}\" contains \"Foo\"")
}
if Contains(mockT, simpleMap, "Bar") {
t.Error("Contains should return false: \"{\"Foo\": \"Bar\"}\" does not contains \"Bar\"")
}
}
func TestNotContains(t *testing.T) {
mockT := new(testing.T)
list := []string{"Foo", "Bar"}
simpleMap := map[interface{}]interface{}{"Foo": "Bar"}
if !NotContains(mockT, "Hello World", "Hello!") {
t.Error("NotContains should return true: \"Hello World\" does not contain \"Hello!\"")
}
if NotContains(mockT, "Hello World", "Hello") {
t.Error("NotContains should return false: \"Hello World\" contains \"Hello\"")
}
if !NotContains(mockT, list, "Foo!") {
t.Error("NotContains should return true: \"[\"Foo\", \"Bar\"]\" does not contain \"Foo!\"")
}
if NotContains(mockT, list, "Foo") {
t.Error("NotContains should return false: \"[\"Foo\", \"Bar\"]\" contains \"Foo\"")
}
if NotContains(mockT, simpleMap, "Foo") {
t.Error("Contains should return true: \"{\"Foo\": \"Bar\"}\" contains \"Foo\"")
}
if !NotContains(mockT, simpleMap, "Bar") {
t.Error("Contains should return false: \"{\"Foo\": \"Bar\"}\" does not contains \"Bar\"")
}
}
func TestSubset(t *testing.T) {
mockT := new(testing.T)
if !Subset(mockT, []int{1, 2, 3}, nil) {
t.Error("Subset should return true: given subset is nil")
}
if !Subset(mockT, []int{1, 2, 3}, []int{}) {
t.Error("Subset should return true: any set contains the nil set")
}
if !Subset(mockT, []int{1, 2, 3}, []int{1, 2}) {
t.Error("Subset should return true: [1, 2, 3] contains [1, 2]")
}
if !Subset(mockT, []int{1, 2, 3}, []int{1, 2, 3}) {
t.Error("Subset should return true: [1, 2, 3] contains [1, 2, 3]")
}
if !Subset(mockT, []string{"hello", "world"}, []string{"hello"}) {
t.Error("Subset should return true: [\"hello\", \"world\"] contains [\"hello\"]")
}
if Subset(mockT, []string{"hello", "world"}, []string{"hello", "testify"}) {
t.Error("Subset should return false: [\"hello\", \"world\"] does not contain [\"hello\", \"testify\"]")
}
if Subset(mockT, []int{1, 2, 3}, []int{4, 5}) {
t.Error("Subset should return false: [1, 2, 3] does not contain [4, 5]")
}
if Subset(mockT, []int{1, 2, 3}, []int{1, 5}) {
t.Error("Subset should return false: [1, 2, 3] does not contain [1, 5]")
}
}
func TestNotSubset(t *testing.T) {
mockT := new(testing.T)
if NotSubset(mockT, []int{1, 2, 3}, nil) {
t.Error("NotSubset should return false: given subset is nil")
}
if NotSubset(mockT, []int{1, 2, 3}, []int{}) {
t.Error("NotSubset should return false: any set contains the nil set")
}
if NotSubset(mockT, []int{1, 2, 3}, []int{1, 2}) {
t.Error("NotSubset should return false: [1, 2, 3] contains [1, 2]")
}
if NotSubset(mockT, []int{1, 2, 3}, []int{1, 2, 3}) {
t.Error("NotSubset should return false: [1, 2, 3] contains [1, 2, 3]")
}
if NotSubset(mockT, []string{"hello", "world"}, []string{"hello"}) {
t.Error("NotSubset should return false: [\"hello\", \"world\"] contains [\"hello\"]")
}
if !NotSubset(mockT, []string{"hello", "world"}, []string{"hello", "testify"}) {
t.Error("NotSubset should return true: [\"hello\", \"world\"] does not contain [\"hello\", \"testify\"]")
}
if !NotSubset(mockT, []int{1, 2, 3}, []int{4, 5}) {
t.Error("NotSubset should return true: [1, 2, 3] does not contain [4, 5]")
}
if !NotSubset(mockT, []int{1, 2, 3}, []int{1, 5}) {
t.Error("NotSubset should return true: [1, 2, 3] does not contain [1, 5]")
}
}
func TestNotSubsetNil(t *testing.T) {
mockT := new(testing.T)
NotSubset(mockT, []string{"foo"}, nil)
if !mockT.Failed() {
t.Error("NotSubset on nil set should have failed the test")
}
}
func Test_includeElement(t *testing.T) {
list1 := []string{"Foo", "Bar"}
list2 := []int{1, 2}
simpleMap := map[interface{}]interface{}{"Foo": "Bar"}
ok, found := includeElement("Hello World", "World")
True(t, ok)
True(t, found)
ok, found = includeElement(list1, "Foo")
True(t, ok)
True(t, found)
ok, found = includeElement(list1, "Bar")
True(t, ok)
True(t, found)
ok, found = includeElement(list2, 1)
True(t, ok)
True(t, found)
ok, found = includeElement(list2, 2)
True(t, ok)
True(t, found)
ok, found = includeElement(list1, "Foo!")
True(t, ok)
False(t, found)
ok, found = includeElement(list2, 3)
True(t, ok)
False(t, found)
ok, found = includeElement(list2, "1")
True(t, ok)
False(t, found)
ok, found = includeElement(simpleMap, "Foo")
True(t, ok)
True(t, found)
ok, found = includeElement(simpleMap, "Bar")
True(t, ok)
False(t, found)
ok, found = includeElement(1433, "1")
False(t, ok)
False(t, found)
}
func TestElementsMatch(t *testing.T) {
mockT := new(testing.T)
if !ElementsMatch(mockT, nil, nil) {
t.Error("ElementsMatch should return true")
}
if !ElementsMatch(mockT, []int{}, []int{}) {
t.Error("ElementsMatch should return true")
}
if !ElementsMatch(mockT, []int{1}, []int{1}) {
t.Error("ElementsMatch should return true")
}
if !ElementsMatch(mockT, []int{1, 1}, []int{1, 1}) {
t.Error("ElementsMatch should return true")
}
if !ElementsMatch(mockT, []int{1, 2}, []int{1, 2}) {
t.Error("ElementsMatch should return true")
}
if !ElementsMatch(mockT, []int{1, 2}, []int{2, 1}) {
t.Error("ElementsMatch should return true")
}
if !ElementsMatch(mockT, [2]int{1, 2}, [2]int{2, 1}) {
t.Error("ElementsMatch should return true")
}
if !ElementsMatch(mockT, []string{"hello", "world"}, []string{"world", "hello"}) {
t.Error("ElementsMatch should return true")
}
if !ElementsMatch(mockT, []string{"hello", "hello"}, []string{"hello", "hello"}) {
t.Error("ElementsMatch should return true")
}
if !ElementsMatch(mockT, []string{"hello", "hello", "world"}, []string{"hello", "world", "hello"}) {
t.Error("ElementsMatch should return true")
}
if !ElementsMatch(mockT, [3]string{"hello", "hello", "world"}, [3]string{"hello", "world", "hello"}) {
t.Error("ElementsMatch should return true")
}
if !ElementsMatch(mockT, []int{}, nil) {
t.Error("ElementsMatch should return true")
}
if ElementsMatch(mockT, []int{1}, []int{1, 1}) {
t.Error("ElementsMatch should return false")
}
if ElementsMatch(mockT, []int{1, 2}, []int{2, 2}) {
t.Error("ElementsMatch should return false")
}
if ElementsMatch(mockT, []string{"hello", "hello"}, []string{"hello"}) {
t.Error("ElementsMatch should return false")
}
}
func TestCondition(t *testing.T) {
mockT := new(testing.T)
if !Condition(mockT, func() bool { return true }, "Truth") {
t.Error("Condition should return true")
}
if Condition(mockT, func() bool { return false }, "Lie") {
t.Error("Condition should return false")
}
}
func TestDidPanic(t *testing.T) {
if funcDidPanic, _ := didPanic(func() {
panic("Panic!")
}); !funcDidPanic {
t.Error("didPanic should return true")
}
if funcDidPanic, _ := didPanic(func() {
}); funcDidPanic {
t.Error("didPanic should return false")
}
}
func TestPanics(t *testing.T) {
mockT := new(testing.T)
if !Panics(mockT, func() {
panic("Panic!")
}) {
t.Error("Panics should return true")
}
if Panics(mockT, func() {
}) {
t.Error("Panics should return false")
}
}
func TestPanicsWithValue(t *testing.T) {
mockT := new(testing.T)
if !PanicsWithValue(mockT, "Panic!", func() {
panic("Panic!")
}) {
t.Error("PanicsWithValue should return true")
}
if PanicsWithValue(mockT, "Panic!", func() {
}) {
t.Error("PanicsWithValue should return false")
}
if PanicsWithValue(mockT, "at the disco", func() {
panic("Panic!")
}) {
t.Error("PanicsWithValue should return false")
}
}
func TestNotPanics(t *testing.T) {
mockT := new(testing.T)
if !NotPanics(mockT, func() {
}) {
t.Error("NotPanics should return true")
}
if NotPanics(mockT, func() {
panic("Panic!")
}) {
t.Error("NotPanics should return false")
}
}
func TestNoError(t *testing.T) {
mockT := new(testing.T)
// start with a nil error
var err error
True(t, NoError(mockT, err), "NoError should return True for nil arg")
// now set an error
err = errors.New("some error")
False(t, NoError(mockT, err), "NoError with error should return False")
// returning an empty error interface
err = func() error {
var err *customError
if err != nil {
t.Fatal("err should be nil here")
}
return err
}()
if err == nil { // err is not nil here!
t.Errorf("Error should be nil due to empty interface: %s", err)
}
False(t, NoError(mockT, err), "NoError should fail with empty error interface")
}
type customError struct{}
func (*customError) Error() string { return "fail" }
func TestError(t *testing.T) {
mockT := new(testing.T)
// start with a nil error
var err error
False(t, Error(mockT, err), "Error should return False for nil arg")
// now set an error
err = errors.New("some error")
True(t, Error(mockT, err), "Error with error should return True")
// go vet check
True(t, Errorf(mockT, err, "example with %s", "formatted message"), "Errorf with error should rturn True")
// returning an empty error interface
err = func() error {
var err *customError
if err != nil {
t.Fatal("err should be nil here")
}
return err
}()
if err == nil { // err is not nil here!
t.Errorf("Error should be nil due to empty interface: %s", err)
}
True(t, Error(mockT, err), "Error should pass with empty error interface")
}
func TestEqualError(t *testing.T) {
mockT := new(testing.T)
// start with a nil error
var err error
False(t, EqualError(mockT, err, ""),
"EqualError should return false for nil arg")
// now set an error
err = errors.New("some error")
False(t, EqualError(mockT, err, "Not some error"),
"EqualError should return false for different error string")
True(t, EqualError(mockT, err, "some error"),
"EqualError should return true")
}
func Test_isEmpty(t *testing.T) {
chWithValue := make(chan struct{}, 1)
chWithValue <- struct{}{}
True(t, isEmpty(""))
True(t, isEmpty(nil))
True(t, isEmpty([]string{}))
True(t, isEmpty(0))
True(t, isEmpty(int32(0)))
True(t, isEmpty(int64(0)))
True(t, isEmpty(false))
True(t, isEmpty(map[string]string{}))
True(t, isEmpty(new(time.Time)))
True(t, isEmpty(time.Time{}))
True(t, isEmpty(make(chan struct{})))
False(t, isEmpty("something"))
False(t, isEmpty(errors.New("something")))
False(t, isEmpty([]string{"something"}))
False(t, isEmpty(1))
False(t, isEmpty(true))
False(t, isEmpty(map[string]string{"Hello": "World"}))
False(t, isEmpty(chWithValue))
}
func TestEmpty(t *testing.T) {
mockT := new(testing.T)
chWithValue := make(chan struct{}, 1)
chWithValue <- struct{}{}
var tiP *time.Time
var tiNP time.Time
var s *string
var f *os.File
sP := &s
x := 1
xP := &x
type TString string
type TStruct struct {
x int
s []int
}
True(t, Empty(mockT, ""), "Empty string is empty")
True(t, Empty(mockT, nil), "Nil is empty")
True(t, Empty(mockT, []string{}), "Empty string array is empty")
True(t, Empty(mockT, 0), "Zero int value is empty")
True(t, Empty(mockT, false), "False value is empty")
True(t, Empty(mockT, make(chan struct{})), "Channel without values is empty")
True(t, Empty(mockT, s), "Nil string pointer is empty")
True(t, Empty(mockT, f), "Nil os.File pointer is empty")
True(t, Empty(mockT, tiP), "Nil time.Time pointer is empty")
True(t, Empty(mockT, tiNP), "time.Time is empty")
True(t, Empty(mockT, TStruct{}), "struct with zero values is empty")
True(t, Empty(mockT, TString("")), "empty aliased string is empty")
True(t, Empty(mockT, sP), "ptr to nil value is empty")
False(t, Empty(mockT, "something"), "Non Empty string is not empty")
False(t, Empty(mockT, errors.New("something")), "Non nil object is not empty")
False(t, Empty(mockT, []string{"something"}), "Non empty string array is not empty")
False(t, Empty(mockT, 1), "Non-zero int value is not empty")
False(t, Empty(mockT, true), "True value is not empty")
False(t, Empty(mockT, chWithValue), "Channel with values is not empty")
False(t, Empty(mockT, TStruct{x: 1}), "struct with initialized values is empty")
False(t, Empty(mockT, TString("abc")), "non-empty aliased string is empty")
False(t, Empty(mockT, xP), "ptr to non-nil value is not empty")
}
func TestNotEmpty(t *testing.T) {
mockT := new(testing.T)
chWithValue := make(chan struct{}, 1)
chWithValue <- struct{}{}
False(t, NotEmpty(mockT, ""), "Empty string is empty")
False(t, NotEmpty(mockT, nil), "Nil is empty")
False(t, NotEmpty(mockT, []string{}), "Empty string array is empty")
False(t, NotEmpty(mockT, 0), "Zero int value is empty")
False(t, NotEmpty(mockT, false), "False value is empty")
False(t, NotEmpty(mockT, make(chan struct{})), "Channel without values is empty")
True(t, NotEmpty(mockT, "something"), "Non Empty string is not empty")
True(t, NotEmpty(mockT, errors.New("something")), "Non nil object is not empty")
True(t, NotEmpty(mockT, []string{"something"}), "Non empty string array is not empty")
True(t, NotEmpty(mockT, 1), "Non-zero int value is not empty")
True(t, NotEmpty(mockT, true), "True value is not empty")
True(t, NotEmpty(mockT, chWithValue), "Channel with values is not empty")
}
func Test_getLen(t *testing.T) {
falseCases := []interface{}{
nil,
0,
true,
false,
'A',
struct{}{},
}
for _, v := range falseCases {
ok, l := getLen(v)
False(t, ok, "Expected getLen fail to get length of %#v", v)
Equal(t, 0, l, "getLen should return 0 for %#v", v)
}
ch := make(chan int, 5)
ch <- 1
ch <- 2
ch <- 3
trueCases := []struct {
v interface{}
l int
}{
{[]int{1, 2, 3}, 3},
{[...]int{1, 2, 3}, 3},
{"ABC", 3},
{map[int]int{1: 2, 2: 4, 3: 6}, 3},
{ch, 3},
{[]int{}, 0},
{map[int]int{}, 0},
{make(chan int), 0},
{[]int(nil), 0},
{map[int]int(nil), 0},
{(chan int)(nil), 0},
}
for _, c := range trueCases {
ok, l := getLen(c.v)
True(t, ok, "Expected getLen success to get length of %#v", c.v)
Equal(t, c.l, l)
}
}
func TestLen(t *testing.T) {
mockT := new(testing.T)