mirror of
https://github.com/samber/lo.git
synced 2025-09-27 04:15:58 +08:00
9c8308ffda
* style(lint): gofumpt * style(lint): errcheck * style(lint): revive * style(lint): gocritic * style(lint): forcetypeassert * style(lint): add .golangci.yml * oops
663 lines
16 KiB
Go
663 lines
16 KiB
Go
package lo
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import (
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"errors"
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"fmt"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestValidate(t *testing.T) {
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is := assert.New(t)
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slice := []string{"a"}
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result1 := Validate(len(slice) == 0, "Slice should be empty but contains %v", slice)
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slice = []string{}
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result2 := Validate(len(slice) == 0, "Slice should be empty but contains %v", slice)
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is.Error(result1)
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is.NoError(result2)
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}
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func TestMust(t *testing.T) {
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t.Parallel()
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is := assert.New(t)
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is.Equal("foo", Must("foo", nil))
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is.PanicsWithValue("something went wrong", func() {
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Must("", errors.New("something went wrong"))
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})
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is.PanicsWithValue("operation shouldn't fail: something went wrong", func() {
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Must("", errors.New("something went wrong"), "operation shouldn't fail")
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})
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is.PanicsWithValue("operation shouldn't fail with foo: something went wrong", func() {
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Must("", errors.New("something went wrong"), "operation shouldn't fail with %s", "foo")
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})
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is.Equal(1, Must(1, true))
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is.PanicsWithValue("not ok", func() {
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Must(1, false)
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})
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is.PanicsWithValue("operation shouldn't fail", func() {
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Must(1, false, "operation shouldn't fail")
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})
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is.PanicsWithValue("operation shouldn't fail with foo", func() {
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Must(1, false, "operation shouldn't fail with %s", "foo")
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})
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cb := func() error {
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return assert.AnError
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}
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is.PanicsWithValue("operation should fail: assert.AnError general error for testing", func() {
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Must0(cb(), "operation should fail")
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})
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is.PanicsWithValue("must: invalid err type 'int', should either be a bool or an error", func() {
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Must0(0)
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})
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is.PanicsWithValue("must: invalid err type 'string', should either be a bool or an error", func() {
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Must0("error")
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})
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}
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func TestMustX(t *testing.T) {
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t.Parallel()
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is := assert.New(t)
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{
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is.PanicsWithValue("something went wrong", func() {
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Must0(errors.New("something went wrong"))
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})
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is.PanicsWithValue("operation shouldn't fail with foo: something went wrong", func() {
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Must0(errors.New("something went wrong"), "operation shouldn't fail with %s", "foo")
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})
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is.NotPanics(func() {
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Must0(nil)
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})
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}
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{
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val1 := Must1(1, nil)
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is.Equal(1, val1)
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is.PanicsWithValue("something went wrong", func() {
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Must1(1, errors.New("something went wrong"))
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})
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is.PanicsWithValue("operation shouldn't fail with foo: something went wrong", func() {
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Must1(1, errors.New("something went wrong"), "operation shouldn't fail with %s", "foo")
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})
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}
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{
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val1, val2 := Must2(1, 2, nil)
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is.Equal(1, val1)
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is.Equal(2, val2)
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is.PanicsWithValue("something went wrong", func() {
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Must2(1, 2, errors.New("something went wrong"))
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})
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is.PanicsWithValue("operation shouldn't fail with foo: something went wrong", func() {
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Must2(1, 2, errors.New("something went wrong"), "operation shouldn't fail with %s", "foo")
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})
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}
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{
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val1, val2, val3 := Must3(1, 2, 3, nil)
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is.Equal(1, val1)
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is.Equal(2, val2)
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is.Equal(3, val3)
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is.PanicsWithValue("something went wrong", func() {
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Must3(1, 2, 3, errors.New("something went wrong"))
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})
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is.PanicsWithValue("operation shouldn't fail with foo: something went wrong", func() {
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Must3(1, 2, 3, errors.New("something went wrong"), "operation shouldn't fail with %s", "foo")
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})
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}
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{
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val1, val2, val3, val4 := Must4(1, 2, 3, 4, nil)
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is.Equal(1, val1)
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is.Equal(2, val2)
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is.Equal(3, val3)
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is.Equal(4, val4)
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is.PanicsWithValue("something went wrong", func() {
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Must4(1, 2, 3, 4, errors.New("something went wrong"))
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})
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is.PanicsWithValue("operation shouldn't fail with foo: something went wrong", func() {
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Must4(1, 2, 3, 4, errors.New("something went wrong"), "operation shouldn't fail with %s", "foo")
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})
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}
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{
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val1, val2, val3, val4, val5 := Must5(1, 2, 3, 4, 5, nil)
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is.Equal(1, val1)
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is.Equal(2, val2)
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is.Equal(3, val3)
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is.Equal(4, val4)
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is.Equal(5, val5)
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is.PanicsWithValue("something went wrong", func() {
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Must5(1, 2, 3, 4, 5, errors.New("something went wrong"))
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})
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is.PanicsWithValue("operation shouldn't fail with foo: something went wrong", func() {
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Must5(1, 2, 3, 4, 5, errors.New("something went wrong"), "operation shouldn't fail with %s", "foo")
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})
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}
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{
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val1, val2, val3, val4, val5, val6 := Must6(1, 2, 3, 4, 5, 6, nil)
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is.Equal(1, val1)
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is.Equal(2, val2)
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is.Equal(3, val3)
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is.Equal(4, val4)
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is.Equal(5, val5)
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is.Equal(6, val6)
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is.PanicsWithValue("something went wrong", func() {
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Must6(1, 2, 3, 4, 5, 6, errors.New("something went wrong"))
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})
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is.PanicsWithValue("operation shouldn't fail with foo: something went wrong", func() {
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Must6(1, 2, 3, 4, 5, 6, errors.New("something went wrong"), "operation shouldn't fail with %s", "foo")
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})
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}
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{
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is.PanicsWithValue("not ok", func() {
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Must0(false)
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})
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is.PanicsWithValue("operation shouldn't fail with foo", func() {
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Must0(false, "operation shouldn't fail with %s", "foo")
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})
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is.NotPanics(func() {
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Must0(true)
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})
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}
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{
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val1 := Must1(1, true)
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is.Equal(1, val1)
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is.PanicsWithValue("not ok", func() {
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Must1(1, false)
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})
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is.PanicsWithValue("operation shouldn't fail with foo", func() {
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Must1(1, false, "operation shouldn't fail with %s", "foo")
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})
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}
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{
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val1, val2 := Must2(1, 2, true)
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is.Equal(1, val1)
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is.Equal(2, val2)
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is.PanicsWithValue("not ok", func() {
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Must2(1, 2, false)
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})
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is.PanicsWithValue("operation shouldn't fail with foo", func() {
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Must2(1, 2, false, "operation shouldn't fail with %s", "foo")
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})
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}
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{
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val1, val2, val3 := Must3(1, 2, 3, true)
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is.Equal(1, val1)
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is.Equal(2, val2)
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is.Equal(3, val3)
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is.PanicsWithValue("not ok", func() {
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Must3(1, 2, 3, false)
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})
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is.PanicsWithValue("operation shouldn't fail with foo", func() {
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Must3(1, 2, 3, false, "operation shouldn't fail with %s", "foo")
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})
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}
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{
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val1, val2, val3, val4 := Must4(1, 2, 3, 4, true)
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is.Equal(1, val1)
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is.Equal(2, val2)
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is.Equal(3, val3)
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is.Equal(4, val4)
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is.PanicsWithValue("not ok", func() {
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Must4(1, 2, 3, 4, false)
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})
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is.PanicsWithValue("operation shouldn't fail with foo", func() {
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Must4(1, 2, 3, 4, false, "operation shouldn't fail with %s", "foo")
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})
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}
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{
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val1, val2, val3, val4, val5 := Must5(1, 2, 3, 4, 5, true)
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is.Equal(1, val1)
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is.Equal(2, val2)
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is.Equal(3, val3)
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is.Equal(4, val4)
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is.Equal(5, val5)
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is.PanicsWithValue("not ok", func() {
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Must5(1, 2, 3, 4, 5, false)
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})
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is.PanicsWithValue("operation shouldn't fail with foo", func() {
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Must5(1, 2, 3, 4, 5, false, "operation shouldn't fail with %s", "foo")
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})
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}
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{
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val1, val2, val3, val4, val5, val6 := Must6(1, 2, 3, 4, 5, 6, true)
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is.Equal(1, val1)
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is.Equal(2, val2)
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is.Equal(3, val3)
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is.Equal(4, val4)
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is.Equal(5, val5)
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is.Equal(6, val6)
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is.PanicsWithValue("not ok", func() {
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Must6(1, 2, 3, 4, 5, 6, false)
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})
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is.PanicsWithValue("operation shouldn't fail with foo", func() {
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Must6(1, 2, 3, 4, 5, 6, false, "operation shouldn't fail with %s", "foo")
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})
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}
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}
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func TestTry(t *testing.T) {
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t.Parallel()
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is := assert.New(t)
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is.False(Try(func() error {
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panic("error")
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}))
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is.True(Try(func() error {
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return nil
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}))
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is.False(Try(func() error {
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return fmt.Errorf("fail")
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}))
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}
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func TestTryX(t *testing.T) {
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t.Parallel()
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is := assert.New(t)
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is.True(Try1(func() error {
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return nil
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}))
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is.True(Try2(func() (string, error) {
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return "", nil
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}))
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is.True(Try3(func() (string, string, error) {
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return "", "", nil
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}))
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is.True(Try4(func() (string, string, string, error) {
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return "", "", "", nil
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}))
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is.True(Try5(func() (string, string, string, string, error) {
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return "", "", "", "", nil
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}))
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is.True(Try6(func() (string, string, string, string, string, error) {
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return "", "", "", "", "", nil
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}))
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is.False(Try1(func() error {
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panic("error")
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}))
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is.False(Try2(func() (string, error) {
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panic("error")
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}))
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is.False(Try3(func() (string, string, error) {
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panic("error")
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}))
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is.False(Try4(func() (string, string, string, error) {
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panic("error")
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}))
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is.False(Try5(func() (string, string, string, string, error) {
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panic("error")
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}))
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is.False(Try6(func() (string, string, string, string, string, error) {
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panic("error")
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}))
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is.False(Try1(func() error {
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return errors.New("foo")
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}))
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is.False(Try2(func() (string, error) {
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return "", errors.New("foo")
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}))
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is.False(Try3(func() (string, string, error) {
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return "", "", errors.New("foo")
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}))
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is.False(Try4(func() (string, string, string, error) {
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return "", "", "", errors.New("foo")
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}))
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is.False(Try5(func() (string, string, string, string, error) {
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return "", "", "", "", errors.New("foo")
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}))
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is.False(Try6(func() (string, string, string, string, string, error) {
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return "", "", "", "", "", errors.New("foo")
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}))
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}
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func TestTryOr(t *testing.T) {
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t.Parallel()
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is := assert.New(t)
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a1, ok1 := TryOr(func() (int, error) { panic("error") }, 42)
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a2, ok2 := TryOr(func() (int, error) { return 21, assert.AnError }, 42)
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a3, ok3 := TryOr(func() (int, error) { return 21, nil }, 42)
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is.Equal(42, a1)
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is.False(ok1)
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is.Equal(42, a2)
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is.False(ok2)
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is.Equal(21, a3)
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is.True(ok3)
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}
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func TestTryOrX(t *testing.T) {
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t.Parallel()
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is := assert.New(t)
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{
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a1, ok1 := TryOr1(func() (int, error) { panic("error") }, 42)
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a2, ok2 := TryOr1(func() (int, error) { return 21, assert.AnError }, 42)
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a3, ok3 := TryOr1(func() (int, error) { return 21, nil }, 42)
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is.Equal(42, a1)
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is.False(ok1)
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is.Equal(42, a2)
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is.False(ok2)
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is.Equal(21, a3)
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is.True(ok3)
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}
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{
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a1, b1, ok1 := TryOr2(func() (int, string, error) { panic("error") }, 42, "hello")
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a2, b2, ok2 := TryOr2(func() (int, string, error) { return 21, "world", assert.AnError }, 42, "hello")
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a3, b3, ok3 := TryOr2(func() (int, string, error) { return 21, "world", nil }, 42, "hello")
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is.Equal(42, a1)
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is.Equal("hello", b1)
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is.False(ok1)
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is.Equal(42, a2)
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is.Equal("hello", b2)
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is.False(ok2)
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is.Equal(21, a3)
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is.Equal("world", b3)
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is.True(ok3)
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}
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{
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a1, b1, c1, ok1 := TryOr3(func() (int, string, bool, error) { panic("error") }, 42, "hello", false)
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a2, b2, c2, ok2 := TryOr3(func() (int, string, bool, error) { return 21, "world", true, assert.AnError }, 42, "hello", false)
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a3, b3, c3, ok3 := TryOr3(func() (int, string, bool, error) { return 21, "world", true, nil }, 42, "hello", false)
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is.Equal(42, a1)
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is.Equal("hello", b1)
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is.False(c1)
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is.False(ok1)
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is.Equal(42, a2)
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is.Equal("hello", b2)
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is.False(c2)
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is.False(ok2)
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is.Equal(21, a3)
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is.Equal("world", b3)
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is.True(c3)
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is.True(ok3)
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}
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{
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a1, b1, c1, d1, ok1 := TryOr4(func() (int, string, bool, int, error) { panic("error") }, 42, "hello", false, 42)
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a2, b2, c2, d2, ok2 := TryOr4(func() (int, string, bool, int, error) { return 21, "world", true, 21, assert.AnError }, 42, "hello", false, 42)
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a3, b3, c3, d3, ok3 := TryOr4(func() (int, string, bool, int, error) { return 21, "world", true, 21, nil }, 42, "hello", false, 42)
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is.Equal(42, a1)
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is.Equal("hello", b1)
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is.False(c1)
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is.Equal(42, d1)
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is.False(ok1)
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is.Equal(42, a2)
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is.Equal("hello", b2)
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is.False(c2)
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is.Equal(42, d2)
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is.False(ok2)
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is.Equal(21, a3)
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is.Equal("world", b3)
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is.True(c3)
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is.Equal(21, d3)
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is.True(ok3)
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}
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{
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a1, b1, c1, d1, e1, ok1 := TryOr5(func() (int, string, bool, int, int, error) { panic("error") }, 42, "hello", false, 42, 42)
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a2, b2, c2, d2, e2, ok2 := TryOr5(func() (int, string, bool, int, int, error) { return 21, "world", true, 21, 21, assert.AnError }, 42, "hello", false, 42, 42)
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a3, b3, c3, d3, e3, ok3 := TryOr5(func() (int, string, bool, int, int, error) { return 21, "world", true, 21, 21, nil }, 42, "hello", false, 42, 42)
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is.Equal(42, a1)
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is.Equal("hello", b1)
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is.False(c1)
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is.Equal(42, d1)
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is.Equal(42, e1)
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is.False(ok1)
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is.Equal(42, a2)
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is.Equal("hello", b2)
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is.False(c2)
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is.Equal(42, d2)
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is.Equal(42, e2)
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is.False(ok2)
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is.Equal(21, a3)
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is.Equal("world", b3)
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is.True(c3)
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is.Equal(21, d3)
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is.Equal(21, e3)
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is.True(ok3)
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}
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{
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a1, b1, c1, d1, e1, f1, ok1 := TryOr6(func() (int, string, bool, int, int, int, error) { panic("error") }, 42, "hello", false, 42, 42, 42)
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a2, b2, c2, d2, e2, f2, ok2 := TryOr6(func() (int, string, bool, int, int, int, error) { return 21, "world", true, 21, 21, 21, assert.AnError }, 42, "hello", false, 42, 42, 42)
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a3, b3, c3, d3, e3, f3, ok3 := TryOr6(func() (int, string, bool, int, int, int, error) { return 21, "world", true, 21, 21, 21, nil }, 42, "hello", false, 42, 42, 42)
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is.Equal(42, a1)
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is.Equal("hello", b1)
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is.False(c1)
|
|
is.Equal(42, d1)
|
|
is.Equal(42, e1)
|
|
is.Equal(42, f1)
|
|
is.False(ok1)
|
|
|
|
is.Equal(42, a2)
|
|
is.Equal("hello", b2)
|
|
is.False(c2)
|
|
is.Equal(42, d2)
|
|
is.Equal(42, e2)
|
|
is.Equal(42, f2)
|
|
is.False(ok2)
|
|
|
|
is.Equal(21, a3)
|
|
is.Equal("world", b3)
|
|
is.True(c3)
|
|
is.Equal(21, d3)
|
|
is.Equal(21, e3)
|
|
is.Equal(21, f3)
|
|
is.True(ok3)
|
|
}
|
|
}
|
|
|
|
func TestTryWithErrorValue(t *testing.T) {
|
|
t.Parallel()
|
|
is := assert.New(t)
|
|
|
|
err, ok := TryWithErrorValue(func() error {
|
|
// getting error in case of panic, using recover function
|
|
panic("error")
|
|
})
|
|
is.False(ok)
|
|
is.Equal("error", err)
|
|
|
|
err, ok = TryWithErrorValue(func() error {
|
|
return errors.New("foo")
|
|
})
|
|
is.False(ok)
|
|
e, isError := err.(error)
|
|
is.True(isError)
|
|
is.EqualError(e, "foo")
|
|
|
|
err, ok = TryWithErrorValue(func() error {
|
|
return nil
|
|
})
|
|
is.True(ok)
|
|
is.Nil(err)
|
|
}
|
|
|
|
func TestTryCatch(t *testing.T) {
|
|
t.Parallel()
|
|
is := assert.New(t)
|
|
|
|
caught := false
|
|
TryCatch(func() error {
|
|
panic("error")
|
|
}, func() {
|
|
// error was caught
|
|
caught = true
|
|
})
|
|
is.True(caught)
|
|
|
|
caught = false
|
|
TryCatch(func() error {
|
|
return nil
|
|
}, func() {
|
|
// no error to be caught
|
|
caught = true
|
|
})
|
|
is.False(caught)
|
|
}
|
|
|
|
func TestTryCatchWithErrorValue(t *testing.T) {
|
|
t.Parallel()
|
|
is := assert.New(t)
|
|
|
|
caught := false
|
|
TryCatchWithErrorValue(func() error {
|
|
panic("error")
|
|
}, func(val any) {
|
|
// error was caught
|
|
caught = val == "error"
|
|
})
|
|
is.True(caught)
|
|
|
|
caught = false
|
|
TryCatchWithErrorValue(func() error {
|
|
return nil
|
|
}, func(val any) {
|
|
// no error to be caught
|
|
caught = true
|
|
})
|
|
is.False(caught)
|
|
}
|
|
|
|
type internalError struct {
|
|
foobar string
|
|
}
|
|
|
|
func (e *internalError) Error() string {
|
|
return "internal error"
|
|
}
|
|
|
|
func TestErrorsAs(t *testing.T) {
|
|
t.Parallel()
|
|
is := assert.New(t)
|
|
|
|
err, ok := ErrorsAs[*internalError](fmt.Errorf("hello world"))
|
|
is.False(ok)
|
|
is.Nil(err)
|
|
|
|
err, ok = ErrorsAs[*internalError](&internalError{foobar: "foobar"})
|
|
is.True(ok)
|
|
is.Equal(&internalError{foobar: "foobar"}, err)
|
|
|
|
err, ok = ErrorsAs[*internalError](nil)
|
|
is.False(ok)
|
|
is.Nil(err)
|
|
}
|
|
|
|
func TestAssert(t *testing.T) {
|
|
t.Parallel()
|
|
is := assert.New(t)
|
|
|
|
is.NotPanics(func() {
|
|
Assert(true)
|
|
})
|
|
|
|
is.NotPanics(func() {
|
|
Assert(true, "user defined message")
|
|
})
|
|
|
|
is.PanicsWithValue("assertion failed", func() {
|
|
Assert(false)
|
|
})
|
|
|
|
is.PanicsWithValue("assertion failed: user defined message", func() {
|
|
Assert(false, "user defined message")
|
|
})
|
|
|
|
// checks that the examples in `README.md` compile
|
|
{
|
|
age := 20
|
|
is.NotPanics(func() {
|
|
Assert(age >= 15)
|
|
})
|
|
is.NotPanics(func() {
|
|
Assert(age >= 15, "user age must be >= 15")
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestAssertf(t *testing.T) {
|
|
t.Parallel()
|
|
is := assert.New(t)
|
|
|
|
is.NotPanics(func() {
|
|
Assertf(true, "user defined message")
|
|
})
|
|
|
|
is.NotPanics(func() {
|
|
Assertf(true, "user defined message %d %d", 1, 2)
|
|
})
|
|
|
|
is.PanicsWithValue("assertion failed: user defined message", func() {
|
|
Assertf(false, "user defined message")
|
|
})
|
|
|
|
is.PanicsWithValue("assertion failed: user defined message 1 2", func() {
|
|
Assertf(false, "user defined message %d %d", 1, 2)
|
|
})
|
|
|
|
// checks that the example in `README.md` compiles
|
|
{
|
|
age := 7
|
|
is.PanicsWithValue("assertion failed: user age must be >= 15, got 7", func() {
|
|
Assertf(age >= 15, "user age must be >= 15, got %d", age)
|
|
})
|
|
}
|
|
}
|