Aneurin Barker Snook
50 lines
1.1 KiB
Go
50 lines
1.1 KiB
Go
package validate
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import (
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"errors"
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"fmt"
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"testing"
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)
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func TestErrorIs(t *testing.T) {
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type TestCase struct {
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A error
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B error
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Want bool
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}
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testCases := []TestCase{
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// Want any validation error
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{A: Err, B: Err, Want: true},
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{A: ErrDisallowedChars, B: Err, Want: true},
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{A: ErrMustBeGreater, B: Err, Want: true},
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// Want specific validation error
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{A: ErrDisallowedChars, B: ErrDisallowedChars, Want: true},
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{A: ErrMustBeGreater, B: ErrMustBeGreater, Want: true},
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// Want not specific validation error
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{A: Err, B: ErrDisallowedChars},
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{A: Err, B: ErrMustBeGreater},
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{A: ErrMustBeGreater, B: ErrDisallowedChars},
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{A: ErrDisallowedChars, B: ErrMustBeGreater},
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// Want not any other error
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{A: ErrDisallowedChars, B: errors.New("contains disallowed characters")},
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{A: ErrMustBeGreater, B: errors.New("must be greater than %v")},
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}
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for _, testCase := range testCases {
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a, b, want := testCase.A, testCase.B, testCase.Want
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t.Run(fmt.Sprintf("%v/%v", a, b), func(t *testing.T) {
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got := errors.Is(a, b)
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if got != want {
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t.Error("got", got)
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t.Error("want", want)
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}
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})
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}
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}
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