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[exports-validate] Exports validate to provide a easy method to valid… #1

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12 changes: 6 additions & 6 deletions emvqr/emvqr.js
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Original file line number Diff line number Diff line change
@@ -1,8 +1,7 @@

const crc = require('./crc');
const { getTag, getSubTag } = require('./scheme');

const validate = (text) => {
const validate = text => {
const data = text.substring(0, text.length - 4);
const checksum = text.substring(text.length - 4);

Expand Down Expand Up @@ -42,7 +41,7 @@ const read = (text, describe, tagId) => {
id,
name: subtag ? subtag.name : tag.name,
len,
data
data,
};
}
else {
Expand All @@ -52,12 +51,12 @@ const read = (text, describe, tagId) => {
if (next.length) {
return {
[id]: value,
...read(next, describe, tagId)
...read(next, describe, tagId),
};
}
else {
return {
[id]: value
[id]: value,
};
}
};
Expand All @@ -71,5 +70,6 @@ const decode = (text, tiny = false) => {
};

module.exports = {
decode
decode,
validate,
};
15 changes: 13 additions & 2 deletions test/emvqr.spec.js
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Original file line number Diff line number Diff line change
@@ -1,6 +1,10 @@
const emvqr = require('../emvqr/emvqr');

const emvqrHelloWorldExample = '00020101021229300012D156000000000510A93FO3230Q31280012D15600000001030812345678520441115802CN5914BEST TRANSPORT6007BEIJING64200002ZH0104最佳运输0202北京540523.7253031565502016233030412340603***0708A60086670902ME91320016A0112233449988770708123456786304A13A';
const emvqrHelloWorldExample =
'00020101021229300012D156000000000510A93FO3230Q31280012D15600000001030812345678520441115802CN5914BEST TRANSPORT6007BEIJING64200002ZH0104最佳运输0202北京540523.7253031565502016233030412340603***0708A60086670902ME91320016A0112233449988770708123456786304A13A';

const emvqrBadChecksumExample =
'00020101021229300012D156000000000510A93FO3230Q31280012D15600000001030812345678520441115802CN5914BEZT TRANSPORT6007BEIJING64200002ZH0104最佳运输0202北京540523.7253031565502016233030412340603***0708A60086670902ME91320016A0112233449988770708123456786304A13A';

test('should return a valid object, when its called', () => {
const emvObject = emvqr.decode(emvqrHelloWorldExample);
Expand All @@ -21,8 +25,15 @@ test('valid expected output for emvqr string example', () => {
});

test('should throw an error, when its called with an invalid checksum', () => {
const emvqrBadChecksumExample = '00020101021229300012D156000000000510A93FO3230Q31280012D15600000001030812345678520441115802CN5914BEZT TRANSPORT6007BEIJING64200002ZH0104最佳运输0202北京540523.7253031565502016233030412340603***0708A60086670902ME91320016A0112233449988770708123456786304A13A';
expect(() => {
emvqr.decode(emvqrBadChecksumExample);
}).toThrow(Error);
});

test('should return true, when its called with a valid checksum', () => {
expect(emvqr.validate(emvqrHelloWorldExample)).toBe(true);
});

test('should return false, when its called with a invalid checksum', () => {
expect(emvqr.validate(emvqrBadChecksumExample)).toBe(false);
});