29 lines
686 B
Go
29 lines
686 B
Go
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package tests
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import (
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"testing"
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"fmt"
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)
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func TestRequiredField(t *testing.T) {
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cases := []struct{ json, errorMessage string }{
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{`{"first_name":"Foo", "last_name": "Bar"}`, ""},
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{`{"last_name":"Bar"}`, "key 'first_name' is required"},
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{"{}", "key 'first_name' is required"},
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}
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for _, tc := range cases {
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var v RequiredOptionalStruct
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err := v.UnmarshalJSON([]byte(tc.json))
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if tc.errorMessage == "" {
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if err != nil {
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t.Errorf("%s. UnmarshallJSON didn`t expect error: %v", tc.json, err)
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}
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} else {
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if fmt.Sprintf("%v", err) != tc.errorMessage {
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t.Errorf("%s. UnmarshallJSON expected error: %v. got: %v", tc.json, tc.errorMessage, err)
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}
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}
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}
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}
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