github.com/blend/go-sdk@v1.20240719.1/assert/assert_test.go

/*

Copyright (c) 2024 - Present. Blend Labs, Inc. All rights reserved
Use of this source code is governed by a MIT license that can be found in the LICENSE file.

*/

package assert

import (
	"bytes"
	"fmt"
	"strings"
	"testing"
	"time"
)

func Test_Empty(t *testing.T) {
	t.Parallel()

	buf := bytes.NewBuffer(nil)
	a := Empty(OptOutput(buf))

	if a.Output == nil {
		t.Error("The empty assertion helper should have an output set")
		t.Fail()
	}
	if a.NonFatal().True(false, "this should fail") {
		t.Error("NonFatal true(false) didn't fail.")
	}
	if !a.NonFatal().True(true, "this should pass") {
		t.Error("NonFatal true(true) didn't pass.")
	}

	if len(buf.String()) == 0 {
		t.Error("We should have produced output.")
	}
}

func Test_isZero(t *testing.T) {
	t.Parallel()

	zeroShort := int16(0)
	if !isZero(zeroShort) {
		t.Error("isZero failed")
	}

	notZeroShort := int16(3)
	if isZero(notZeroShort) {
		t.Error("isZero failed")
	}

	zero := 0
	if !isZero(zero) {
		t.Error("isZero failed")
	}
	notZero := 3
	if isZero(notZero) {
		t.Error("isZero failed")
	}

	zeroFloat64 := 0.0
	if !isZero(zeroFloat64) {
		t.Error("isZero failed")
	}
	notZeroFloat64 := 3.14
	if isZero(notZeroFloat64) {
		t.Error("isZero failed")
	}

	zeroFloat32 := float32(0.0)
	if !isZero(zeroFloat32) {
		t.Error("isZero failed")
	}
	notZeroFloat32 := float32(3.14)
	if isZero(notZeroFloat32) {
		t.Error("isZero failed")
	}
}

func Test_getLength(t *testing.T) {
	t.Parallel()

	emptyString := ""
	l := getLength(emptyString)
	if l != 0 {
		t.Errorf("getLength incorrect.")
	}

	notEmptyString := "foo"
	l = getLength(notEmptyString)
	if l != 3 {
		t.Errorf("getLength incorrect.")
	}

	emptyArray := []int{}
	l = getLength(emptyArray)
	if l != 0 {
		t.Errorf("getLength incorrect.")
	}

	notEmptyArray := []int{1, 2, 3}
	l = getLength(notEmptyArray)
	if l != 3 {
		t.Errorf("getLength incorrect.")
	}

	emptyMap := map[string]int{}
	l = getLength(emptyMap)
	if l != 0 {
		t.Errorf("getLength incorrect.")
	}

	notEmptyMap := map[string]int{"foo": 1, "bar": 2, "baz": 3}
	l = getLength(notEmptyMap)
	if l != 3 {
		t.Errorf("getLength incorrect.")
	}
}

func Test_chanShouldHaveNonzeroCapacity(t *testing.T) {
	t.Parallel()

	var didFail bool
	var msg string
	const typeExpected = "Should be a channel"
	const expected = "Should not have capacity 0"

	didFail, msg = chanShouldHaveNonzeroCapacity(nil)
	if !didFail {
		t.Error("untyped nil is not a channel and should fail")
	}
	if msg != typeExpected {
		t.Errorf("unexpected error message. expected=%q, actual=%q", expected, msg)
	}

	didFail, msg = chanShouldHaveNonzeroCapacity(map[string]string{})
	if !didFail {
		t.Error("map is not a channel and should fail")
	}
	if msg != typeExpected {
		t.Errorf("unexpected error message. expected=%q, actual=%q", expected, msg)
	}

	var nilChan chan any
	didFail, msg = chanShouldHaveNonzeroCapacity(nilChan)
	if !didFail {
		t.Error("nil has zero capacity and should fail")
	}
	if msg != expected {
		t.Errorf("unexpected error message. expected=%q, actual=%q", expected, msg)
	}

	didFail, msg = chanShouldHaveNonzeroCapacity(make(chan any))
	if !didFail {
		t.Error("channel has zero capacity and should fail")
	}
	if msg != expected {
		t.Errorf("unexpected error message. expected=%q, actual=%q", expected, msg)
	}

	didFail, msg = chanShouldHaveNonzeroCapacity(make(chan string))
	if !didFail {
		t.Error("channel has zero capacity and should fail")
	}
	if msg != expected {
		t.Errorf("unexpected error message. expected=%q, actual=%q", expected, msg)
	}

	didFail, msg = chanShouldHaveNonzeroCapacity(make(chan any, 10))
	if didFail {
		t.Error("channel has non-zero capacity and should not fail")
	}
	if msg != "" {
		t.Errorf("error message should be an empty string, found %q", msg)
	}
}

func TestAssertions_EmptyBufferedChannel(t *testing.T) {
	t.Parallel()

	buf := bytes.NewBuffer(nil)
	a := Empty(OptOutput(buf))
	a.Optional = true // don't immediately panic for assertion failures
	a.OutputFormat = OutputFormatUnitTest
	if a.Output == nil {
		t.Error("The empty assertion helper should have an output set")
	}

	var didPass bool
	var msg string
	var expected string
	var ch chan any

	ch = make(chan any)
	didPass = a.EmptyBufferedChannel(ch)
	if didPass {
		t.Error("expected unbuffered channel to fail the assertion, but it succeeded")
	}
	msg = buf.String()
	expected = "Should not have capacity 0"
	if msg != expected {
		t.Errorf("unexpected error message. expected=%q, actual=%q", expected, msg)
	}
	buf.Reset()

	ch = make(chan any, 1)
	ch <- "fill"
	didPass = a.EmptyBufferedChannel(ch)
	if didPass {
		t.Error("expected buffered channel with length 1 to fail the assertion, but it succeeded")
	}
	msg = buf.String()
	expected = "Should be empty\n\t\x1b[37;01mActual\x1b[0m: \t(chan interface {})("
	if !strings.HasPrefix(msg, expected) {
		t.Errorf("unexpected error message. expected prefix=%q, actual message=%q", expected, msg)
	}
	buf.Reset()

	ch = make(chan any, 1)
	didPass = a.EmptyBufferedChannel(ch)
	if !didPass {
		t.Error("expected buffered channel with length 0 to pass the assertion, but it failed")
	}
	msg = buf.String()
	expected = ""
	if msg != expected {
		t.Errorf("unexpected error message. expected=%q, actual=%q", expected, msg)
	}
	buf.Reset()

	errChan := make(chan error, 1)
	errChan <- fmt.Errorf("fill")
	didPass = a.EmptyBufferedChannel(errChan)
	if didPass {
		t.Error("expected buffered channel with length 1 to fail the assertion, but it succeeded")
	}
	msg = buf.String()
	expected = "Should be empty\n\t\x1b[37;01mActual\x1b[0m: \t(chan error)("
	if !strings.HasPrefix(msg, expected) {
		t.Errorf("unexpected error message. expected prefix=%q, actual message=%q", expected, msg)
	}
	buf.Reset()

	errChan = make(chan error, 1)
	didPass = a.EmptyBufferedChannel(errChan)
	if !didPass {
		t.Error("expected buffered channel with length 0 to pass the assertion, but it failed")
	}
	msg = buf.String()
	expected = ""
	if msg != expected {
		t.Errorf("unexpected error message. expected=%q, actual=%q", expected, msg)
	}
	buf.Reset()
}

type myNestedStruct struct {
	ID   int
	Name string
}

type myTestStruct struct {
	ID          int
	Name        string
	SingleValue float32
	DoubleValue float64
	Timestamp   time.Time
	Struct      myNestedStruct

	IDPtr     *int
	NamePptr  *string
	StructPtr *myNestedStruct

	Slice    []myNestedStruct
	SlicePtr *[]myNestedStruct
}

func createTestStruct() myTestStruct {
	testInt := 1
	testName := "test struct"

	nestedA := myNestedStruct{1, "A"}
	nestedB := myNestedStruct{1, "B"}
	nestedC := myNestedStruct{1, "C"}

	testStruct := myTestStruct{
		ID:          testInt,
		Name:        testName,
		SingleValue: float32(3.14),
		DoubleValue: 6.28,
		Timestamp:   time.Now(),
		Struct:      nestedA,
		IDPtr:       &testInt,
		NamePptr:    &testName,
		StructPtr:   &nestedB,
		Slice:       []myNestedStruct{nestedA, nestedB, nestedC},
	}

	testStruct.SlicePtr = &testStruct.Slice
	return testStruct
}

func Test_shouldBeEqual_nestedStructsAreEqual(t *testing.T) {
	t.Parallel()

	testStructA := createTestStruct()
	testStructB := createTestStruct()
	testStructB.Name = "not test struct"

	if didFail, _ := shouldBeEqual(testStructA, testStructA); didFail {
		t.Error("shouldBeEqual Failed.")
		t.FailNow()
	}

	if didFail, _ := shouldBeEqual(testStructA, testStructB); !didFail {
		t.Error("shouldBeEqual Failed.")
		t.FailNow()
	}
}

func Test_shouldBeEqual(t *testing.T) {
	t.Parallel()

	byteA := byte('a')
	byteB := byte('b')

	if didFail, _ := shouldBeEqual(byteA, byteA); didFail {
		t.Error("shouldBeEqual Failed.")
		t.FailNow()
	}
	if didFail, _ := shouldBeEqual(byteA, byteB); !didFail {
		t.Error("shouldBeEqual Failed.")
		t.FailNow()
	}

	stringA := "test"
	stringB := "not test"

	if didFail, _ := shouldBeEqual(stringA, stringA); didFail {
		t.Error("shouldBeEqual Equal Failed.")
		t.FailNow()
	}
	if didFail, _ := shouldBeEqual(stringA, stringB); !didFail {
		t.Error("shouldBeEqual Failed.")
		t.FailNow()
	}

	intA := 1
	intB := 2

	if didFail, _ := shouldBeEqual(intA, intA); didFail {
		t.Error("shouldBeEqual Equal Failed.")
		t.FailNow()
	}
	if didFail, _ := shouldBeEqual(intA, intB); !didFail {
		t.Error("shouldBeEqual Failed.")
		t.FailNow()
	}

	float32A := float32(3.14)
	float32B := float32(6.28)

	if didFail, _ := shouldBeEqual(float32A, float32A); didFail {
		t.Error("shouldBeEqual Equal Failed.")
		t.FailNow()
	}
	if didFail, _ := shouldBeEqual(float32A, float32B); !didFail {
		t.Error("shouldBeEqual Failed.")
		t.FailNow()
	}

	floatA := 3.14
	floatB := 6.28

	if didFail, _ := shouldBeEqual(floatA, floatA); didFail {
		t.Error("shouldBeEqual Equal Failed.")
		t.FailNow()
	}
	if didFail, _ := shouldBeEqual(floatA, floatB); !didFail {
		t.Error("shouldBeEqual Failed.")
		t.FailNow()
	}
}

func makesThings(shouldReturnNil bool) *myTestStruct {
	if !shouldReturnNil {
		return &myTestStruct{}
	}
	return nil
}

func Test_shouldBeNil(t *testing.T) {
	t.Parallel()

	assertsToNil := makesThings(true)
	assertsToNotNil := makesThings(false)

	didFail, didFailErrMsg := shouldBeNil(assertsToNil)
	if didFail {
		t.Error(didFailErrMsg)
		t.FailNow()
	}

	didFail, _ = shouldBeNil(assertsToNotNil)
	if !didFail {
		t.Error("shouldBeNil returned did_fail as `true` for a not nil object")
		t.FailNow()
	}
}

func Test_shouldNotBeNil(t *testing.T) {
	t.Parallel()

	assertsToNil := makesThings(true)
	assertsToNotNil := makesThings(false)

	didFail, didFailErrMsg := shouldNotBeNil(assertsToNotNil)
	if didFail {
		t.Error(didFailErrMsg)
		t.FailNow()
	}

	didFail, _ = shouldNotBeNil(assertsToNil)
	if !didFail {
		t.Error("shouldNotBeNil returned did_fail as `true` for a not nil object")
		t.FailNow()
	}
}

func Test_shouldContain(t *testing.T) {
	t.Parallel()

	shouldNotHaveFailed, _ := shouldContain("this is a test", "is a")
	if shouldNotHaveFailed {
		t.Errorf("shouldConatain failed.")
		t.FailNow()
	}

	shouldHaveFailed, _ := shouldContain("this is a test", "beer")
	if !shouldHaveFailed {
		t.Errorf("shouldConatain failed.")
		t.FailNow()
	}
}

type anyTestObj struct {
	ID   int
	Name string
}

func Test_shouldAny(t *testing.T) {
	t.Parallel()

	testObjs := []anyTestObj{{1, "Test"}, {2, "Test2"}, {3, "Foo"}}

	didFail, _ := shouldAny(testObjs, func(obj interface{}) bool {
		if typed, didType := obj.(anyTestObj); didType {
			return strings.HasPrefix(typed.Name, "Foo")
		}
		return false
	})
	if didFail {
		t.Errorf("shouldAny failed.")
		t.FailNow()
	}

	didFail, _ = shouldAny(testObjs, func(obj interface{}) bool {
		if typed, didType := obj.(anyTestObj); didType {
			return strings.HasPrefix(typed.Name, "Bar")
		}
		return false
	})
	if !didFail {
		t.Errorf("shouldAny should have failed.")
		t.FailNow()
	}

	didFail, _ = shouldAny(anyTestObj{1, "test"}, func(obj interface{}) bool {
		return true
	})
	if !didFail {
		t.Errorf("shouldAny should have failed on non-slice target.")
		t.FailNow()
	}
}

func Test_shouldAll(t *testing.T) {
	t.Parallel()

	testObjs := []anyTestObj{{1, "Test"}, {2, "Test2"}, {3, "Foo"}}

	didFail, _ := shouldAll(testObjs, func(obj interface{}) bool {
		if typed, didType := obj.(anyTestObj); didType {
			return typed.ID > 0
		}
		return false
	})
	if didFail {
		t.Errorf("shouldAll shouldnt have failed.")
		t.FailNow()
	}

	didFail, _ = shouldAll(testObjs, func(obj interface{}) bool {
		if typed, didType := obj.(anyTestObj); didType {
			return strings.HasPrefix(typed.Name, "Test")
		}
		return false
	})
	if !didFail {
		t.Errorf("shouldAll should have failed.")
		t.FailNow()
	}

	didFail, _ = shouldAll(anyTestObj{1, "test"}, func(obj interface{}) bool {
		return true
	})
	if !didFail {
		t.Errorf("shouldAll should have failed on non-slice target.")
		t.FailNow()
	}
}

func Test_shouldNone(t *testing.T) {
	t.Parallel()

	testObjs := []anyTestObj{{1, "Test"}, {2, "Test2"}, {3, "Foo"}}

	didFail, _ := shouldNone(testObjs, func(obj interface{}) bool {
		if typed, didType := obj.(anyTestObj); didType {
			return typed.ID > 4
		}
		return false
	})
	if didFail {
		t.Errorf("shouldAll shouldnt have failed.")
		t.FailNow()
	}

	didFail, _ = shouldNone(testObjs, func(obj interface{}) bool {
		if typed, didType := obj.(anyTestObj); didType {
			return typed.ID > 0
		}
		return false
	})
	if !didFail {
		t.Errorf("shouldNone should have failed.")
		t.FailNow()
	}
}

func Test_shouldBeInTimeDelta(t *testing.T) {
	t.Parallel()

	value1 := time.Date(2016, 1, 29, 9, 0, 0, 0, time.UTC)
	value2 := time.Date(2016, 1, 29, 9, 0, 0, 1, time.UTC)
	value3 := time.Date(2016, 1, 29, 8, 0, 0, 0, time.UTC)
	value4 := time.Date(2015, 1, 29, 9, 0, 0, 0, time.UTC)

	didFail, _ := shouldBeInTimeDelta(value1, value2, 1*time.Minute)
	if didFail {
		t.Errorf("shouldBeInTimeDelta shouldnt have failed.")
		t.FailNow()
	}

	didFail, _ = shouldBeInTimeDelta(value1, value3, 1*time.Minute)
	if !didFail {
		t.Errorf("shouldBeInTimeDelta should have failed.")
		t.FailNow()
	}

	didFail, _ = shouldBeInTimeDelta(value1, value4, 1*time.Minute)
	if !didFail {
		t.Errorf("shouldBeInTimeDelta should have failed.")
		t.FailNow()
	}
}

func Test_New(t *testing.T) {
	t.Parallel()

	buffer := new(bytes.Buffer)
	a := New(t,
		OptOutput(buffer),
	)

	if a.T == nil {
		t.Errorf("should pass t to the assertion helper")
		t.Fail()
	}
	if a.Output == nil {
		t.Errorf("should run provided options")
		t.Fail()
	}
	if a.OutputFormat != OutputFormatFromEnv() {
		t.Errorf("should set the correct output format")
		t.Fail()
	}
	if a.Context == nil {
		t.Errorf("should set the context")
		t.Fail()
	}
	if GetTestName(a.Context) != t.Name() {
		t.Errorf("should set the context test name")
		t.Fail()
	}
	if GetContextID(a.Context) == "" {
		t.Errorf("should set the context id")
		t.Fail()
	}
}

func Test_Assert_NotFatal(t *testing.T) {
	t.Parallel()

	buf := bytes.NewBuffer(nil)
	a := New(t, OptOutput(buf))
	nf := a.NonFatal()
	if nf.T == nil {
		t.Errorf("should set t")
		t.FailNow()
	}
	if nf.Output == nil {
		t.Errorf("should set output")
		t.FailNow()
	}
}

func TestAssertNil(t *testing.T) {
	err := safeExec(func() {
		New(nil).Nil(nil) // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).Nil("foo")
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertNotNil(t *testing.T) {
	err := safeExec(func() {
		New(nil).NotNil("foo") // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).NotNil(nil)
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertLen(t *testing.T) {
	err := safeExec(func() {
		New(nil).Len("foo", 3) // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).Len([]string{}, 3)
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertEmpty(t *testing.T) {
	err := safeExec(func() {
		New(nil).Empty("") // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).Empty("foo")
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertNotEmpty(t *testing.T) {
	err := safeExec(func() {
		New(nil).NotEmpty("foo") // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).NotEmpty("")
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertEqual(t *testing.T) {
	err := safeExec(func() {
		New(nil).Equal("foo", "foo") // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).Equal("foo", "bar")
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertReferenceEqual(t *testing.T) {
	obj1 := "foo"
	obj2 := "foo"
	ref1 := &obj1
	ref2 := &obj1
	ref3 := &obj2

	err := safeExec(func() {
		New(nil).ReferenceEqual(ref1, ref2) // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).ReferenceEqual(ref1, ref3)
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertNotEqual(t *testing.T) {
	err := safeExec(func() {
		New(nil).NotEqual("foo", "bar") // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).NotEqual("foo", "foo")
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertZero(t *testing.T) {
	err := safeExec(func() {
		New(nil).Zero(0) // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).Zero(1)
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertNotZero(t *testing.T) {
	err := safeExec(func() {
		New(nil).NotZero(1) // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).NotZero(0)
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertTrue(t *testing.T) {
	err := safeExec(func() {
		New(nil).True(true) // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).True(1 == 0)
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertFalse(t *testing.T) {
	err := safeExec(func() {
		New(nil).False(false) // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).False(true)
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertInDelta(t *testing.T) {
	err := safeExec(func() {
		New(nil).InDelta(1, 2, 1)   // should be ok
		New(nil).InDelta(1, 1.5, 1) // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).InDelta(1, 3, 1)
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertInTimeDelta(t *testing.T) {
	t1 := time.Date(2018, 04, 10, 12, 00, 00, 00, time.UTC)
	t2 := time.Date(2018, 04, 10, 12, 00, 01, 00, time.UTC)
	t3 := time.Date(2018, 04, 10, 12, 01, 00, 00, time.UTC)

	err := safeExec(func() {
		New(nil).InTimeDelta(t1, t2, time.Second) // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).InTimeDelta(t1, t3, time.Second)
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertContains(t *testing.T) {
	err := safeExec(func() {
		New(nil).Contains("foo bar", "foo") // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).Contains("foo bar", "baz")
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertNotContains(t *testing.T) {
	err := safeExec(func() {
		New(nil).NotContains("foo bar", "buzz") // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).NotContains("foo bar", "foo")
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertHasPrefix(t *testing.T) {
	err := safeExec(func() {
		New(nil).HasPrefix("foo bar", "foo") // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).HasPrefix("foo bar", "baz")
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertNotHasPrefix(t *testing.T) {
	err := safeExec(func() {
		New(nil).NotHasPrefix("foo bar", "buzz") // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).NotHasPrefix("foo bar", "foo")
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertHasSuffix(t *testing.T) {
	err := safeExec(func() {
		New(nil).HasSuffix("foo bar", "bar") // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).HasSuffix("foo bar", "baz")
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertNotHasSuffix(t *testing.T) {
	err := safeExec(func() {
		New(nil).NotHasSuffix("foo bar", "buzz") // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).NotHasSuffix("foo bar", "bar")
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertAny(t *testing.T) {
	err := safeExec(func() {
		New(nil).Any([]int{1, 2, 3}, func(v interface{}) bool { return v.(int) == 1 }) // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).Any([]int{1, 2, 3}, func(v interface{}) bool { return v.(int) == 0 }) // should not be ok
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertAnyOfInt(t *testing.T) {
	err := safeExec(func() {
		New(nil).AnyOfInt([]int{1, 2, 3}, func(v int) bool { return v == 1 }) // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).AnyOfInt([]int{1, 2, 3}, func(v int) bool { return v == 0 }) // should not  be ok
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertAnyOfFloat64(t *testing.T) {
	err := safeExec(func() {
		New(nil).AnyOfFloat64([]float64{1, 2, 3}, func(v float64) bool { return v == 1 }) // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).AnyOfFloat64([]float64{1, 2, 3}, func(v float64) bool { return v == 0 }) // should not be ok
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertAnyOfString(t *testing.T) {
	err := safeExec(func() {
		New(nil).AnyOfString([]string{"foo", "bar", "baz"}, func(v string) bool { return v == "foo" }) // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).AnyOfString([]string{"foo", "bar", "baz"}, func(v string) bool { return v == "buzz" }) // should not be ok
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertAll(t *testing.T) {
	err := safeExec(func() {
		New(nil).All([]int{1, 2, 3}, func(v interface{}) bool { return v.(int) > 0 }) // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).All([]int{1, 2, 3}, func(v interface{}) bool { return v.(int) > 1 }) // should not be ok
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertAllOfInt(t *testing.T) {
	err := safeExec(func() {
		New(nil).AllOfInt([]int{1, 2, 3}, func(v int) bool { return v > 0 }) // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).AllOfInt([]int{1, 2, 3}, func(v int) bool { return v > 1 }) // should not  be ok
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertAllOfFloat64(t *testing.T) {
	err := safeExec(func() {
		New(nil).AllOfFloat64([]float64{1, 2, 3}, func(v float64) bool { return v > 0 }) // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).AllOfFloat64([]float64{1, 2, 3}, func(v float64) bool { return v > 1 }) // should not be ok
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertAllOfString(t *testing.T) {
	err := safeExec(func() {
		New(nil).AllOfString([]string{"foo", "bar", "baz"}, func(v string) bool { return len(v) == 3 }) // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).AllOfString([]string{"foo", "bar", "baz"}, func(v string) bool { return v == "foo" }) // should not be ok
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertNone(t *testing.T) {
	err := safeExec(func() {
		New(nil).None([]int{1, 2, 3}, func(v interface{}) bool { return v.(int) > 3 }) // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).None([]int{1, 2, 3}, func(v interface{}) bool { return v.(int) > 2 }) // should not be ok
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertNoneOfInt(t *testing.T) {
	err := safeExec(func() {
		New(nil).NoneOfInt([]int{1, 2, 3}, func(v int) bool { return v > 3 }) // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).NoneOfInt([]int{1, 2, 3}, func(v int) bool { return v > 2 }) // should not  be ok
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertNoneOfFloat64(t *testing.T) {
	err := safeExec(func() {
		New(nil).NoneOfFloat64([]float64{1, 2, 3}, func(v float64) bool { return v > 3 }) // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).NoneOfFloat64([]float64{1, 2, 3}, func(v float64) bool { return v > 2 }) // should not be ok
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertNoneOfString(t *testing.T) {
	err := safeExec(func() {
		New(nil).NoneOfString([]string{"foo", "bar", "baz"}, func(v string) bool { return len(v) == 0 }) // should be ok
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	err = safeExec(func() {
		New(nil, OptOutput(output)).NoneOfString([]string{"foo", "bar", "baz"}, func(v string) bool { return v == "foo" }) // should not be ok
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("Should have written output on failure")
		t.FailNow()
	}
}

func TestAssertNotPanic(t *testing.T) {
	err := safeExec(func() {
		New(nil).NotPanic(func() {})
	})
	if err != nil {
		t.Errorf("should not have produced a panic")
		t.FailNow()
	}

	err = safeExec(func() {
		New(nil).NotPanic(func() {
			panic("i'm gonna panic")
		})
	})
	if err == nil {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
}

// -----
// Optional / NotFatal
// -----

func TestAssertNonFatalNil(t *testing.T) {
	if !New(nil).NonFatal().Nil(nil) { // should be ok {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	if New(nil, OptOutput(output)).NonFatal().Nil("foo") {
		t.Errorf("should have failed")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("should have produced output")
		t.FailNow()
	}
}

func TestAssertNonFatalNotNil(t *testing.T) {
	if !New(nil).NonFatal().NotNil("foo") { // should be ok {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	if New(nil, OptOutput(output)).NonFatal().NotNil(nil) {
		t.Errorf("should have failed")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("should have produced output")
		t.FailNow()
	}
}

func TestAssertNonFatalLen(t *testing.T) {
	if !New(nil).NonFatal().Len("foo", 3) { // should be ok {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	if New(nil, OptOutput(output)).NonFatal().Len("foo", 4) {
		t.Errorf("should have failed")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("should have produced output")
		t.FailNow()
	}
}

func TestAssertNonFatalEmpty(t *testing.T) {
	if !New(nil).NonFatal().Empty("") { // should be ok {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	if New(nil, OptOutput(output)).NonFatal().Empty("foo") {
		t.Errorf("should have failed")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("should have produced output")
		t.FailNow()
	}
}

func TestAssertNonFatalNotEmpty(t *testing.T) {
	if !New(nil).NonFatal().NotEmpty("foo") { // should be ok {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	if New(nil, OptOutput(output)).NonFatal().NotEmpty("") {
		t.Errorf("should have failed")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("should have produced output")
		t.FailNow()
	}
}

func TestAssertNonFatalEqual(t *testing.T) {
	if !New(nil).NonFatal().Equal("foo", "foo") { // should be ok {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	if New(nil, OptOutput(output)).NonFatal().Equal("foo", "bar") {
		t.Errorf("should have failed")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("should have produced output")
		t.FailNow()
	}
}

func TestAssertNonFatalReferenceEqual(t *testing.T) {
	obj1 := "foo"
	obj2 := "foo"
	ref1 := &obj1
	ref2 := &obj1
	ref3 := &obj2

	if !New(nil).NonFatal().ReferenceEqual(ref1, ref2) { // should be ok {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	if New(nil, OptOutput(output)).NonFatal().ReferenceEqual(ref1, ref3) {
		t.Errorf("should have failed")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("should have produced output")
		t.FailNow()
	}
}

func TestAssertNonFatalNotEqual(t *testing.T) {
	if !New(nil).NonFatal().NotEqual("bar", "foo") { // should be ok {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	if New(nil, OptOutput(output)).NonFatal().NotEqual("foo", "foo") {
		t.Errorf("should have failed")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("should have produced output")
		t.FailNow()
	}
}

func TestAssertNonFatalZero(t *testing.T) {
	if !New(nil).NonFatal().Zero(0) { // should be ok {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	if New(nil, OptOutput(output)).NonFatal().Zero(1) {
		t.Errorf("should have failed")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("should have produced output")
		t.FailNow()
	}
}

func TestAssertNonFatalNotZero(t *testing.T) {
	if !New(nil).NonFatal().NotZero(1) { // should be ok {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	if New(nil, OptOutput(output)).NonFatal().NotZero(0) {
		t.Errorf("should have failed")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("should have produced output")
		t.FailNow()
	}
}

func TestAssertNonFatalTrue(t *testing.T) {
	if !New(nil).NonFatal().True(true) { // should be ok {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	if New(nil, OptOutput(output)).NonFatal().True(1 == 0) {
		t.Errorf("should have failed")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("should have produced output")
		t.FailNow()
	}
}

func TestAssertNonFatalFalse(t *testing.T) {
	if !New(nil).NonFatal().False(false) { // should be ok {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	if New(nil, OptOutput(output)).NonFatal().False(true) {
		t.Errorf("should have failed")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("should have produced output")
		t.FailNow()
	}
}

func TestAssertNonFatalInDelta(t *testing.T) {
	if !New(nil).NonFatal().InDelta(1, 2, 1) { // should be ok {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	if New(nil, OptOutput(output)).NonFatal().InDelta(1, 3, 1) {
		t.Errorf("should have failed")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("should have produced output")
		t.FailNow()
	}
}

func TestAssertNonFatalInTimeDelta(t *testing.T) {
	t1 := time.Date(2018, 04, 10, 12, 00, 00, 00, time.UTC)
	t2 := time.Date(2018, 04, 10, 12, 00, 01, 00, time.UTC)
	t3 := time.Date(2018, 04, 10, 12, 01, 00, 00, time.UTC)

	if !New(nil).NonFatal().InTimeDelta(t1, t2, time.Second) { // should be ok {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	if New(nil, OptOutput(output)).NonFatal().InTimeDelta(t1, t3, time.Second) {
		t.Errorf("should have failed")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("should have produced output")
		t.FailNow()
	}
}

func TestAssertNonFatalContains(t *testing.T) {
	if !New(nil).NonFatal().Contains("foo bar", "bar") { // should be ok {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	if New(nil, OptOutput(output)).NonFatal().Contains("foo bar", "something") {
		t.Errorf("should have failed")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("should have produced output")
		t.FailNow()
	}
}

func TestAssertNonFatalNotContains(t *testing.T) {
	if !New(nil).NonFatal().NotContains("foo bar", "buzz") { // should be ok {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	if New(nil, OptOutput(output)).NonFatal().NotContains("foo bar", "bar") {
		t.Errorf("should have failed")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("should have produced output")
		t.FailNow()
	}
}

func TestAssertNonFatalMatches(t *testing.T) {
	if !New(nil).NonFatal().Matches("(.*)", "bar") { // should be ok {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	if New(nil, OptOutput(output)).NonFatal().Matches("foo", "bar") {
		t.Errorf("should have failed")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("should have produced output")
		t.FailNow()
	}
}

func TestAssertNonFatalNotMatches(t *testing.T) {
	if !New(nil).NonFatal().NotMatches("foo", "bar") { // should be ok {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	if New(nil, OptOutput(output)).NonFatal().NotMatches("(.*)", "bar") {
		t.Errorf("should have failed")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("should have produced output")
		t.FailNow()
	}
}

func TestAssertNonFatalAny(t *testing.T) {
	t.Parallel()

	if !New(nil).NonFatal().Any([]int{1, 2, 3}, func(v interface{}) bool { return v.(int) == 2 }) { // should be ok {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	if New(nil, OptOutput(output)).NonFatal().Any([]int{1, 2, 3}, func(v interface{}) bool { return v.(int) == 0 }) {
		t.Errorf("should have failed")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("should have produced output")
		t.FailNow()
	}
}

func TestAssertNonFatalAll(t *testing.T) {
	t.Parallel()

	if !New(nil).NonFatal().All([]int{1, 2, 3}, func(v interface{}) bool { return v.(int) > 0 }) { // should be ok {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	if New(nil, OptOutput(output)).NonFatal().All([]int{1, 2, 3}, func(v interface{}) bool { return v.(int) > 1 }) {
		t.Errorf("should have failed")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("should have produced output")
		t.FailNow()
	}
}

func TestAssertNonFatalNone(t *testing.T) {
	t.Parallel()

	if !New(nil).NonFatal().None([]int{1, 2, 3}, func(v interface{}) bool { return v.(int) > 3 }) { // should be ok {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	output := bytes.NewBuffer(nil)
	if New(nil, OptOutput(output)).NonFatal().None([]int{1, 2, 3}, func(v interface{}) bool { return v.(int) > 2 }) {
		t.Errorf("should have failed")
		t.FailNow()
	}
	if len(output.String()) == 0 {
		t.Errorf("should have produced output")
		t.FailNow()
	}
}

func TestAssertNonFatalPanicEqual(t *testing.T) {
	t.Parallel()

	if !New(nil).NonFatal().PanicEqual("this is only a test", func() {
		panic("this is only a test")
	}) {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	if New(nil).NonFatal().PanicEqual("this is only a test", func() {}) {
		t.Errorf("should have failed without a panic triggered")
		t.FailNow()
	}

	if New(nil).NonFatal().PanicEqual("this is only a test", func() {
		panic("not what we want")
	}) {
		t.Errorf("should have failed on a wrong panic result")
		t.FailNow()
	}
}

func TestAssertNonFatalNotPanic(t *testing.T) {
	t.Parallel()

	if !New(nil).NonFatal().NotPanic(func() {}) {
		t.Errorf("should not have failed")
		t.FailNow()
	}

	if New(nil).NonFatal().NotPanic(func() {
		panic("i'm gonna panic")
	}) {
		t.Errorf("should have produced a panic")
		t.FailNow()
	}
}