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assertions_test.go
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assertions_test.go
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package assert
import (
"bufio"
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
"math"
"os"
"path/filepath"
"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},
(&i),
(func() {}),
interface{}(1),
map[interface{}]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) {
cases := []struct {
expected interface{}
actual interface{}
result bool
}{
// cases that are expected to be equal
{"Hello World", "Hello World", true},
{123, 123, true},
{123.5, 123.5, true},
{[]byte("Hello World"), []byte("Hello World"), true},
{nil, nil, true},
// cases that are expected not to be equal
{map[int]int{5: 10}, map[int]int{10: 20}, false},
{'x', "x", false},
{"x", 'x', false},
{0, 0.1, false},
{0.1, 0, false},
{time.Now, time.Now, false},
{func() {}, func() {}, false},
{uint32(10), int32(10), false},
}
for _, c := range cases {
t.Run(fmt.Sprintf("ObjectsAreEqual(%#v, %#v)", c.expected, c.actual), func(t *testing.T) {
res := ObjectsAreEqual(c.expected, c.actual)
if res != c.result {
t.Errorf("ObjectsAreEqual(%#v, %#v) should return %#v", c.expected, c.actual, c.result)
}
})
}
}
func TestObjectsAreEqualValues(t *testing.T) {
now := time.Now()
cases := []struct {
expected interface{}
actual interface{}
result bool
}{
{uint32(10), int32(10), true},
{0, nil, false},
{nil, 0, false},
{now, now.In(time.Local), false}, // should not be time zone independent
{int(270), int8(14), false}, // should handle overflow/underflow
{int8(14), int(270), false},
{[]int{270, 270}, []int8{14, 14}, false},
{complex128(1e+100 + 1e+100i), complex64(complex(math.Inf(0), math.Inf(0))), false},
{complex64(complex(math.Inf(0), math.Inf(0))), complex128(1e+100 + 1e+100i), false},
{complex128(1e+100 + 1e+100i), 270, false},
{270, complex128(1e+100 + 1e+100i), false},
{complex128(1e+100 + 1e+100i), 3.14, false},
{3.14, complex128(1e+100 + 1e+100i), false},
{complex128(1e+10 + 1e+10i), complex64(1e+10 + 1e+10i), true},
{complex64(1e+10 + 1e+10i), complex128(1e+10 + 1e+10i), true},
}
for _, c := range cases {
t.Run(fmt.Sprintf("ObjectsAreEqualValues(%#v, %#v)", c.expected, c.actual), func(t *testing.T) {
res := ObjectsAreEqualValues(c.expected, c.actual)
if res != c.result {
t.Errorf("ObjectsAreEqualValues(%#v, %#v) should return %#v", c.expected, c.actual, c.result)
}
})
}
}
type Nested struct {
Exported interface{}
notExported interface{}
}
type S struct {
Exported1 interface{}
Exported2 Nested
notExported1 interface{}
notExported2 Nested
}
type S2 struct {
foo interface{}
}
type S3 struct {
Exported1 *Nested
Exported2 *Nested
}
type S4 struct {
Exported1 []*Nested
}
type S5 struct {
Exported Nested
}
type S6 struct {
Exported string
unexported string
}
func TestObjectsExportedFieldsAreEqual(t *testing.T) {
intValue := 1
cases := []struct {
expected interface{}
actual interface{}
result bool
}{
{S{1, Nested{2, 3}, 4, Nested{5, 6}}, S{1, Nested{2, 3}, 4, Nested{5, 6}}, true},
{S{1, Nested{2, 3}, 4, Nested{5, 6}}, S{1, Nested{2, 3}, "a", Nested{5, 6}}, true},
{S{1, Nested{2, 3}, 4, Nested{5, 6}}, S{1, Nested{2, 3}, 4, Nested{5, "a"}}, true},
{S{1, Nested{2, 3}, 4, Nested{5, 6}}, S{1, Nested{2, 3}, 4, Nested{"a", "a"}}, true},
{S{1, Nested{2, 3}, 4, Nested{5, 6}}, S{1, Nested{2, "a"}, 4, Nested{5, 6}}, true},
{S{1, Nested{2, 3}, 4, Nested{5, 6}}, S{"a", Nested{2, 3}, 4, Nested{5, 6}}, false},
{S{1, Nested{2, 3}, 4, Nested{5, 6}}, S{1, Nested{"a", 3}, 4, Nested{5, 6}}, false},
{S{1, Nested{2, 3}, 4, Nested{5, 6}}, S2{1}, false},
{1, S{1, Nested{2, 3}, 4, Nested{5, 6}}, false},
{S3{&Nested{1, 2}, &Nested{3, 4}}, S3{&Nested{1, 2}, &Nested{3, 4}}, true},
{S3{nil, &Nested{3, 4}}, S3{nil, &Nested{3, 4}}, true},
{S3{&Nested{1, 2}, &Nested{3, 4}}, S3{&Nested{1, 2}, &Nested{3, "b"}}, true},
{S3{&Nested{1, 2}, &Nested{3, 4}}, S3{&Nested{1, "a"}, &Nested{3, "b"}}, true},
{S3{&Nested{1, 2}, &Nested{3, 4}}, S3{&Nested{"a", 2}, &Nested{3, 4}}, false},
{S3{&Nested{1, 2}, &Nested{3, 4}}, S3{}, false},
{S3{}, S3{}, true},
{S4{[]*Nested{{1, 2}}}, S4{[]*Nested{{1, 2}}}, true},
{S4{[]*Nested{{1, 2}}}, S4{[]*Nested{{1, 3}}}, true},
{S4{[]*Nested{{1, 2}, {3, 4}}}, S4{[]*Nested{{1, "a"}, {3, "b"}}}, true},
{S4{[]*Nested{{1, 2}, {3, 4}}}, S4{[]*Nested{{1, "a"}, {2, "b"}}}, false},
{Nested{&intValue, 2}, Nested{&intValue, 2}, true},
{Nested{&Nested{1, 2}, 3}, Nested{&Nested{1, "b"}, 3}, true},
{Nested{&Nested{1, 2}, 3}, Nested{nil, 3}, false},
{
Nested{map[interface{}]*Nested{nil: nil}, 2},
Nested{map[interface{}]*Nested{nil: nil}, 2},
true,
},
{
Nested{map[interface{}]*Nested{"a": nil}, 2},
Nested{map[interface{}]*Nested{"a": nil}, 2},
true,
},
{
Nested{map[interface{}]*Nested{"a": nil}, 2},
Nested{map[interface{}]*Nested{"a": {1, 2}}, 2},
false,
},
{
Nested{map[interface{}]Nested{"a": {1, 2}, "b": {3, 4}}, 2},
Nested{map[interface{}]Nested{"a": {1, 5}, "b": {3, 7}}, 2},
true,
},
{
Nested{map[interface{}]Nested{"a": {1, 2}, "b": {3, 4}}, 2},
Nested{map[interface{}]Nested{"a": {2, 2}, "b": {3, 4}}, 2},
false,
},
}
for _, c := range cases {
t.Run(fmt.Sprintf("ObjectsExportedFieldsAreEqual(%#v, %#v)", c.expected, c.actual), func(t *testing.T) {
res := ObjectsExportedFieldsAreEqual(c.expected, c.actual)
if res != c.result {
t.Errorf("ObjectsExportedFieldsAreEqual(%#v, %#v) should return %#v", c.expected, c.actual, c.result)
}
})
}
}
func TestCopyExportedFields(t *testing.T) {
intValue := 1
cases := []struct {
input interface{}
expected interface{}
}{
{
input: Nested{"a", "b"},
expected: Nested{"a", nil},
},
{
input: Nested{&intValue, 2},
expected: Nested{&intValue, nil},
},
{
input: Nested{nil, 3},
expected: Nested{nil, nil},
},
{
input: S{1, Nested{2, 3}, 4, Nested{5, 6}},
expected: S{1, Nested{2, nil}, nil, Nested{}},
},
{
input: S3{},
expected: S3{},
},
{
input: S3{&Nested{1, 2}, &Nested{3, 4}},
expected: S3{&Nested{1, nil}, &Nested{3, nil}},
},
{
input: S3{Exported1: &Nested{"a", "b"}},
expected: S3{Exported1: &Nested{"a", nil}},
},
{
input: S4{[]*Nested{
nil,
{1, 2},
}},
expected: S4{[]*Nested{
nil,
{1, nil},
}},
},
{
input: S4{[]*Nested{
{1, 2}},
},
expected: S4{[]*Nested{
{1, nil}},
},
},
{
input: S4{[]*Nested{
{1, 2},
{3, 4},
}},
expected: S4{[]*Nested{
{1, nil},
{3, nil},
}},
},
{
input: S5{Exported: Nested{"a", "b"}},
expected: S5{Exported: Nested{"a", nil}},
},
{
input: S6{"a", "b"},
expected: S6{"a", ""},
},
}
for _, c := range cases {
t.Run("", func(t *testing.T) {
output := copyExportedFields(c.input)
if !ObjectsAreEqualValues(c.expected, output) {
t.Errorf("%#v, %#v should be equal", c.expected, output)
}
})
}
}
func TestEqualExportedValues(t *testing.T) {
cases := []struct {
value1 interface{}
value2 interface{}
expectedEqual bool
expectedFail string
}{
{
value1: S{1, Nested{2, 3}, 4, Nested{5, 6}},
value2: S{1, Nested{2, nil}, nil, Nested{}},
expectedEqual: true,
},
{
value1: S{1, Nested{2, 3}, 4, Nested{5, 6}},
value2: S{1, Nested{1, nil}, nil, Nested{}},
expectedEqual: false,
expectedFail: `
Diff:
--- Expected
+++ Actual
@@ -3,3 +3,3 @@
Exported2: (assert.Nested) {
- Exported: (int) 2,
+ Exported: (int) 1,
notExported: (interface {}) <nil>`,
},
{
value1: S3{&Nested{1, 2}, &Nested{3, 4}},
value2: S3{&Nested{"a", 2}, &Nested{3, 4}},
expectedEqual: false,
expectedFail: `
Diff:
--- Expected
+++ Actual
@@ -2,3 +2,3 @@
Exported1: (*assert.Nested)({
- Exported: (int) 1,
+ Exported: (string) (len=1) "a",
notExported: (interface {}) <nil>`,
},
{
value1: S4{[]*Nested{
{1, 2},
{3, 4},
}},
value2: S4{[]*Nested{
{1, "a"},
{2, "b"},
}},
expectedEqual: false,
expectedFail: `
Diff:
--- Expected
+++ Actual
@@ -7,3 +7,3 @@
(*assert.Nested)({
- Exported: (int) 3,
+ Exported: (int) 2,
notExported: (interface {}) <nil>`,
},
{
value1: S{[2]int{1, 2}, Nested{2, 3}, 4, Nested{5, 6}},
value2: S{[2]int{1, 2}, Nested{2, nil}, nil, Nested{}},
expectedEqual: true,
},
}
for _, c := range cases {
t.Run("", func(t *testing.T) {
mockT := new(mockTestingT)
actual := EqualExportedValues(mockT, c.value1, c.value2)
if actual != c.expectedEqual {
t.Errorf("Expected EqualExportedValues to be %t, but was %t", c.expectedEqual, actual)
}
actualFail := mockT.errorString()
if !strings.Contains(actualFail, c.expectedFail) {
t.Errorf("Contains failure should include %q but was %q", c.expectedFail, actualFail)
}
})
}
}
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")
}
}
func TestEqual(t *testing.T) {
type myType string
mockT := new(testing.T)
var m map[string]interface{}
cases := []struct {
expected interface{}
actual interface{}
result bool
remark string
}{
{"Hello World", "Hello World", true, ""},
{123, 123, true, ""},
{123.5, 123.5, true, ""},
{[]byte("Hello World"), []byte("Hello World"), true, ""},
{nil, nil, true, ""},
{int32(123), int32(123), true, ""},
{uint64(123), uint64(123), true, ""},
{myType("1"), myType("1"), true, ""},
{&struct{}{}, &struct{}{}, true, "pointer equality is based on equality of underlying value"},
// Not expected to be equal
{m["bar"], "something", false, ""},
{myType("1"), myType("2"), false, ""},
// A case that might be confusing, especially with numeric literals
{10, uint(10), false, ""},
}
for _, c := range cases {
t.Run(fmt.Sprintf("Equal(%#v, %#v)", c.expected, c.actual), func(t *testing.T) {
res := Equal(mockT, c.expected, c.actual)
if res != c.result {
t.Errorf("Equal(%#v, %#v) should return %#v: %s", c.expected, c.actual, c.result, c.remark)
}
})
}
}
func ptr(i int) *int {
return &i
}
func TestSame(t *testing.T) {
mockT := new(testing.T)
if Same(mockT, ptr(1), ptr(1)) {
t.Error("Same should return false")
}
if Same(mockT, 1, 1) {
t.Error("Same should return false")
}
p := ptr(2)
if Same(mockT, p, *p) {
t.Error("Same should return false")
}
if !Same(mockT, p, p) {
t.Error("Same should return true")
}
}
func TestNotSame(t *testing.T) {
mockT := new(testing.T)
if !NotSame(mockT, ptr(1), ptr(1)) {
t.Error("NotSame should return true; different pointers")
}
if !NotSame(mockT, 1, 1) {
t.Error("NotSame should return true; constant inputs")
}
p := ptr(2)
if !NotSame(mockT, p, *p) {
t.Error("NotSame should return true; mixed-type inputs")
}
if NotSame(mockT, p, p) {
t.Error("NotSame should return false")
}
}
func Test_samePointers(t *testing.T) {
p := ptr(2)
type args struct {
first interface{}
second interface{}
}
tests := []struct {
name string
args args
assertion BoolAssertionFunc
}{
{
name: "1 != 2",
args: args{first: 1, second: 2},
assertion: False,
},
{
name: "1 != 1 (not same ptr)",
args: args{first: 1, second: 1},
assertion: False,
},
{
name: "ptr(1) == ptr(1)",
args: args{first: p, second: p},
assertion: True,
},
{
name: "int(1) != float32(1)",
args: args{first: int(1), second: float32(1)},
assertion: False,
},
{
name: "array != slice",
args: args{first: [2]int{1, 2}, second: []int{1, 2}},
assertion: False,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
tt.assertion(t, samePointers(tt.args.first, tt.args.second))
})
}
}
// 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)
cases := []struct {
expected interface{}
actual interface{}
result bool
}{
{a, b, false},
{a, d, false},
{a, c, true},
{nil, a, false},
{a, nil, false},
}
for _, c := range cases {
t.Run(fmt.Sprintf("Exactly(%#v, %#v)", c.expected, c.actual), func(t *testing.T) {
res := Exactly(mockT, c.expected, c.actual)
if res != c.result {
t.Errorf("Exactly(%#v, %#v) should return %#v", c.expected, c.actual, c.result)
}
})
}
}
func TestNotEqual(t *testing.T) {
mockT := new(testing.T)
cases := []struct {
expected interface{}
actual interface{}
result bool
}{
// cases that are expected not to match
{"Hello World", "Hello World!", true},
{123, 1234, true},
{123.5, 123.55, true},
{[]byte("Hello World"), []byte("Hello World!"), true},
{nil, new(AssertionTesterConformingObject), true},
// cases that are expected to match
{nil, nil, false},
{"Hello World", "Hello World", false},
{123, 123, false},
{123.5, 123.5, false},
{[]byte("Hello World"), []byte("Hello World"), false},
{new(AssertionTesterConformingObject), new(AssertionTesterConformingObject), false},
{&struct{}{}, &struct{}{}, false},
{func() int { return 23 }, func() int { return 24 }, false},
// A case that might be confusing, especially with numeric literals
{int(10), uint(10), true},
}
for _, c := range cases {
t.Run(fmt.Sprintf("NotEqual(%#v, %#v)", c.expected, c.actual), func(t *testing.T) {
res := NotEqual(mockT, c.expected, c.actual)
if res != c.result {
t.Errorf("NotEqual(%#v, %#v) should return %#v", c.expected, c.actual, c.result)
}
})
}
}
func TestNotEqualValues(t *testing.T) {
mockT := new(testing.T)
cases := []struct {
expected interface{}
actual interface{}
result bool
}{
// cases that are expected not to match
{"Hello World", "Hello World!", true},
{123, 1234, true},
{123.5, 123.55, true},
{[]byte("Hello World"), []byte("Hello World!"), true},
{nil, new(AssertionTesterConformingObject), true},
// cases that are expected to match
{nil, nil, false},
{"Hello World", "Hello World", false},
{123, 123, false},
{123.5, 123.5, false},
{[]byte("Hello World"), []byte("Hello World"), false},
{new(AssertionTesterConformingObject), new(AssertionTesterConformingObject), false},
{&struct{}{}, &struct{}{}, false},
// Different behaviour from NotEqual()
{func() int { return 23 }, func() int { return 24 }, true},
{int(10), int(11), true},
{int(10), uint(10), false},
{struct{}{}, struct{}{}, false},
}
for _, c := range cases {
t.Run(fmt.Sprintf("NotEqualValues(%#v, %#v)", c.expected, c.actual), func(t *testing.T) {
res := NotEqualValues(mockT, c.expected, c.actual)
if res != c.result {
t.Errorf("NotEqualValues(%#v, %#v) should return %#v", c.expected, c.actual, c.result)
}
})
}
}
func TestContainsNotContains(t *testing.T) {
type A struct {
Name, Value string
}
list := []string{"Foo", "Bar"}
complexList := []*A{
{"b", "c"},
{"d", "e"},
{"g", "h"},
{"j", "k"},
}
simpleMap := map[interface{}]interface{}{"Foo": "Bar"}
var zeroMap map[interface{}]interface{}
cases := []struct {
expected interface{}
actual interface{}
result bool
}{
{"Hello World", "Hello", true},
{"Hello World", "Salut", false},
{list, "Bar", true},
{list, "Salut", false},
{complexList, &A{"g", "h"}, true},
{complexList, &A{"g", "e"}, false},
{simpleMap, "Foo", true},
{simpleMap, "Bar", false},
{zeroMap, "Bar", false},
}
for _, c := range cases {
t.Run(fmt.Sprintf("Contains(%#v, %#v)", c.expected, c.actual), func(t *testing.T) {
mockT := new(testing.T)
res := Contains(mockT, c.expected, c.actual)
if res != c.result {
if res {
t.Errorf("Contains(%#v, %#v) should return true:\n\t%#v contains %#v", c.expected, c.actual, c.expected, c.actual)
} else {
t.Errorf("Contains(%#v, %#v) should return false:\n\t%#v does not contain %#v", c.expected, c.actual, c.expected, c.actual)
}
}
})
}
for _, c := range cases {
t.Run(fmt.Sprintf("NotContains(%#v, %#v)", c.expected, c.actual), func(t *testing.T) {
mockT := new(testing.T)
res := NotContains(mockT, c.expected, c.actual)
// NotContains should be inverse of Contains. If it's not, something is wrong
if res == Contains(mockT, c.expected, c.actual) {
if res {
t.Errorf("NotContains(%#v, %#v) should return true:\n\t%#v does not contains %#v", c.expected, c.actual, c.expected, c.actual)
} else {
t.Errorf("NotContains(%#v, %#v) should return false:\n\t%#v contains %#v", c.expected, c.actual, c.expected, c.actual)
}
}
})
}
}
func TestContainsNotContainsFailMessage(t *testing.T) {
mockT := new(mockTestingT)
type nonContainer struct {
Value string
}
cases := []struct {
assertion func(t TestingT, s, contains interface{}, msgAndArgs ...interface{}) bool
container interface{}
instance interface{}
expected string
}{
{
assertion: Contains,
container: "Hello World",
instance: errors.New("Hello"),
expected: "\"Hello World\" does not contain &errors.errorString{s:\"Hello\"}",
},
{
assertion: Contains,
container: map[string]int{"one": 1},
instance: "two",
expected: "map[string]int{\"one\":1} does not contain \"two\"\n",
},
{
assertion: NotContains,
container: map[string]int{"one": 1},
instance: "one",
expected: "map[string]int{\"one\":1} should not contain \"one\"",
},
{
assertion: Contains,
container: nonContainer{Value: "Hello"},
instance: "Hello",
expected: "assert.nonContainer{Value:\"Hello\"} could not be applied builtin len()\n",
},
{
assertion: NotContains,
container: nonContainer{Value: "Hello"},
instance: "Hello",
expected: "assert.nonContainer{Value:\"Hello\"} could not be applied builtin len()\n",
},
}
for _, c := range cases {
name := filepath.Base(runtime.FuncForPC(reflect.ValueOf(c.assertion).Pointer()).Name())
t.Run(fmt.Sprintf("%v(%T, %T)", name, c.container, c.instance), func(t *testing.T) {
c.assertion(mockT, c.container, c.instance)
actualFail := mockT.errorString()
if !strings.Contains(actualFail, c.expected) {
t.Errorf("Contains failure should include %q but was %q", c.expected, actualFail)
}
})
}