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// Copyright 2022 The Pigweed Authors
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
/* eslint-env browser */
import { PrintfDecoder } from './printf_decoder';
import IntDB from './int_testdata';
function argFromString(arg: string): Uint8Array {
const data = new TextEncoder().encode(arg);
return new Uint8Array([data.length, ...data]);
}
function argFromStringBinary(arg: string): Uint8Array {
return new Uint8Array(arg.split('').map((ch) => ch.charCodeAt(0)));
}
function argsConcat(...args: Uint8Array[]): Uint8Array {
let data: number[] = [];
for (const index in args) {
const argData = args[index];
data = data.concat([...argData]);
}
return new Uint8Array(data);
}
describe('PrintfDecoder', () => {
let printfDecoder: PrintfDecoder;
beforeEach(() => {
printfDecoder = new PrintfDecoder();
});
it('formats string correctly', () => {
expect(printfDecoder.decode('Hello %s', argFromString('Computer'))).toEqual(
'Hello Computer',
);
expect(
printfDecoder.decode(
'Hello %s and %s',
argsConcat(argFromString('Mac'), argFromString('PC')),
),
).toEqual('Hello Mac and PC');
});
it('formats string + number correctly', () => {
expect(
printfDecoder.decode(
'Hello %s and %u',
argsConcat(
argFromString('Computer'),
argFromStringBinary('\xff\xff\x03'),
),
),
).toEqual('Hello Computer and 4294934528');
});
it('formats integers correctly', () => {
for (let index = 0; index < IntDB.length; index++) {
const testcase = IntDB[index];
// Test signed
expect(
printfDecoder.decode(testcase[0], argFromStringBinary(testcase[4])),
).toEqual(testcase[1]);
// Test unsigned
expect(
printfDecoder.decode(testcase[2], argFromStringBinary(testcase[4])),
).toEqual(testcase[3]);
}
});
it('formats string correctly', () => {
expect(
printfDecoder.decode(
'Hello %s and %s',
argsConcat(argFromString('Mac'), argFromString('PC')),
),
).toEqual('Hello Mac and PC');
});
it('formats varint correctly', () => {
const arg = argFromStringBinary('\xff\xff\x03');
expect(printfDecoder.decode('Number %d', arg)).toEqual('Number -32768');
expect(
printfDecoder.decode('Numbers %u and %d', argsConcat(arg, arg)),
).toEqual('Numbers 4294934528 and -32768');
expect(printfDecoder.decode('Growth is %u%', arg)).toEqual(
'Growth is 4294934528%',
);
});
it('formats char correctly', () => {
expect(
printfDecoder.decode('Battery: 100%c', argFromStringBinary('\x4a')),
).toEqual('Battery: 100%');
expect(
printfDecoder.decode('Price: %c97.99', argFromStringBinary('\x48')),
).toEqual('Price: $97.99');
});
it('formats floats correctly', () => {
expect(
printfDecoder.decode(
'Value: %f',
argFromStringBinary('\xdb\x0f\x49\x40'),
),
).toEqual('Value: 3.1415927410125732');
expect(
printfDecoder.decode(
'Value: %.5f',
argFromStringBinary('\xdb\x0f\x49\x40'),
),
).toEqual('Value: 3.14159');
});
});
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