import {
cleanString,
hasDicomPrefix,
DicomParser
} from '../../src/dicom/dicomParser';
import {getFileListFromDicomDir} from '../../src/dicom/dicomElementsWrapper';
import {b64urlToArrayBuffer} from './utils';
import dwvTestSimple from '../data/dwv-test-simple.dcm';
import dwvTestSequence from '../data/dwv-test-sequence.dcm';
import dwvDicomDir from '../data/DICOMDIR';
/**
* Tests for the 'dicom/dicomParser.js' file.
*/
// Do not warn if these variables were not defined before.
/* global QUnit */
/**
* Tests for {@link DicomParser} using simple DICOM data.
* Using remote file for CI integration.
*
* @function module:tests/dicom~dicomParserSimpleDicom
*/
QUnit.test('Test simple DICOM parsing.', function (assert) {
const buffer = b64urlToArrayBuffer(dwvTestSimple);
assert.ok(hasDicomPrefix(buffer), 'Response has DICOM prefix.');
// parse DICOM
const dicomParser = new DicomParser();
dicomParser.parse(buffer);
const numRows = 32;
const numCols = 32;
// raw tags
const rawTags = dicomParser.getDicomElements();
// check values
assert.equal(rawTags['00280010'].value[0], numRows, 'Number of rows (raw)');
assert.equal(
rawTags['00280011'].value[0], numCols, 'Number of columns (raw)');
// ReferencedImageSequence - ReferencedSOPInstanceUID
assert.equal(rawTags['00081140'].value[0]['00081155'].value[0],
'1.3.12.2.1107.5.2.32.35162.2012021515511672669154094',
'ReferencedImageSequence SQ (raw)');
// wrapped tags
const tags = dicomParser.getDicomElements();
// wrong key
assert.ok(typeof tags['12345678'] === 'undefined',
'Wrong key fails if test');
// empty key
assert.ok(typeof tags[''] === 'undefined',
'Empty key fails if test');
// good key
assert.ok(typeof tags['00280010'] !== 'undefined',
'Good key passes if test');
// zero value (passes test since it is a string)
assert.equal(tags['00181318'].value[0], 0, 'Good key, zero value');
// check values
assert.equal(tags['00280010'].value[0], numRows, 'Number of rows');
assert.equal(tags['00280011'].value[0], numCols, 'Number of columns');
// ReferencedImageSequence - ReferencedSOPInstanceUID
// only one item value -> returns the object directly
// (no need for tags["ReferencedImageSequence")[0])
assert.equal(tags['00081140'].value[0]['00081155'].value[0],
'1.3.12.2.1107.5.2.32.35162.2012021515511672669154094',
'ReferencedImageSequence SQ');
});
/**
* Tests for {@link DicomParser} using sequence test DICOM data.
* Using remote file for CI integration.
*
* @function module:tests/dicom~dicomParserSequenceDicom
*/
QUnit.test('Test sequence DICOM parsing.', function (assert) {
const buffer = b64urlToArrayBuffer(dwvTestSequence);
assert.ok(hasDicomPrefix(buffer), 'Response has DICOM prefix.');
// parse DICOM
const dicomParser = new DicomParser();
dicomParser.parse(buffer);
// raw tags
const tags = dicomParser.getDicomElements();
assert.ok((Object.keys(tags).length !== 0), 'Got raw tags.');
// ReferencedImageSequence: explicit sequence
const seq00 = tags['00081140'].value;
assert.equal(seq00.length, 3, 'ReferencedImageSequence length');
assert.equal(seq00[0]['00081155'].value[0],
'1.3.12.2.1107.5.2.32.35162.2012021515511672669154094',
'ReferencedImageSequence - item0 - ReferencedSOPInstanceUID');
assert.equal(seq00[1]['00081155'].value[0],
'1.3.12.2.1107.5.2.32.35162.2012021515511286933854090',
'ReferencedImageSequence - item1 - ReferencedSOPInstanceUID');
// SourceImageSequence: implicit sequence
const seq01 = tags['00082112'].value;
assert.equal(seq01.length, 3, 'SourceImageSequence length');
assert.equal(seq01[0]['00081155'].value[0],
'1.3.12.2.1107.5.2.32.35162.2012021515511672669154094',
'SourceImageSequence - item0 - ReferencedSOPInstanceUID');
assert.equal(seq01[1]['00081155'].value[0],
'1.3.12.2.1107.5.2.32.35162.2012021515511286933854090',
'SourceImageSequence - item1 - ReferencedSOPInstanceUID');
// ReferencedPatientSequence: explicit empty sequence
const seq10 = tags['00081120'].value;
assert.equal(seq10.length, 0, 'ReferencedPatientSequence length');
// ReferencedOverlaySequence: implicit empty sequence
const seq11 = tags['00081130'].value;
assert.equal(seq11.length, 0, 'ReferencedOverlaySequence length');
// ReferringPhysicianIdentificationSequence: explicit empty item
const seq12 = tags['00080096'].value;
assert.equal(seq12[0]['FFFEE000'].value.length, 0,
'ReferringPhysicianIdentificationSequence item length');
// ConsultingPhysicianIdentificationSequence: implicit empty item
const seq13 = tags['0008009D'].value;
assert.equal(seq13.length, 0,
'ConsultingPhysicianIdentificationSequence item length');
// ReferencedStudySequence: explicit sequence of sequence
const seq20 = tags['00081110'].value;
// just one element
//assert.equal(seq20.length, 2, "ReferencedStudySequence length");
assert.equal(seq20[0]['0040A170'].value[0]['00080100'].value[0],
'123456',
'ReferencedStudySequence - seq - item0 - CodeValue');
// ReferencedSeriesSequence: implicit sequence of sequence
const seq21 = tags['00081115'].value;
// just one element
//assert.equal(seq21.length, 2, "ReferencedSeriesSequence length");
assert.equal(seq21[0]['0040A170'].value[0]['00080100'].value[0],
'789101',
'ReferencedSeriesSequence - seq - item0 - CodeValue');
// ReferencedInstanceSequence: explicit empty sequence of sequence
const seq30 = tags['0008114A'].value;
assert.equal(seq30[0]['0040A170'].value.length, 0,
'ReferencedInstanceSequence - seq - length');
// ReferencedVisitSequence: implicit empty sequence of sequence
const seq31 = tags['00081125'].value;
assert.equal(seq31[0]['0040A170'].value.length, 0,
'ReferencedVisitSequence - seq - length');
});
/**
* Tests for {@link cleanString}.
*
* @function module:tests/dicom~cleanString
*/
QUnit.test('Test cleanString.', function (assert) {
// undefined
assert.throws(function () {
cleanString();
},
new TypeError('Cannot read properties of undefined (reading \'length\')'),
'cleanstring undefined throws.');
// null
assert.throws(function () {
cleanString(null);
},
new TypeError('Cannot read properties of null (reading \'length\')'),
'cleanstring null throws.');
// number
assert.throws(function () {
cleanString(3);
},
new TypeError('res.trim is not a function'),
'cleanstring number throws.');
// empty
assert.equal(cleanString(''), '', 'Clean empty');
// short
assert.equal(cleanString('a'), 'a', 'Clean short');
// special
const special = String.fromCharCode('u200B');
assert.equal(cleanString(special), '', 'Clean just special');
// regular
let str = ' El cielo azul ';
let refStr = 'El cielo azul';
assert.equal(cleanString(str), refStr, 'Clean regular');
// regular with special
str = ' El cielo azul' + special;
refStr = 'El cielo azul';
assert.equal(
cleanString(str), refStr, 'Clean regular with special');
// regular with special and ending space (not trimmed)
str = ' El cielo azul ' + special;
refStr = 'El cielo azul';
assert.equal(
cleanString(str), refStr, 'Clean regular with special 2');
});
/**
* Tests for {@link DicomParser} using DICOMDIR data.
* Using remote file for CI integration.
*
* @function module:tests/dicom~dicomParserDicomDir
*/
QUnit.test('Test DICOMDIR parsing.', function (assert) {
// get the file list
const list = getFileListFromDicomDir(
b64urlToArrayBuffer(dwvDicomDir)
);
// check file list
const nFilesSeries0Study0 = 23;
const nFilesSeries1Study0 = 20;
const nFilesSeries0Study1 = 1;
assert.equal(list.length, 2, 'Number of study');
assert.equal(list[0].length, 2, 'Number of series in first study');
assert.equal(list[1].length, 1, 'Number of series in second study');
assert.equal(
list[0][0].length,
nFilesSeries0Study0,
'Study#0:Series#0 number of files');
assert.equal(
list[0][1].length,
nFilesSeries1Study0,
'Study#0:Series#1 number of files');
assert.equal(
list[1][0].length,
nFilesSeries0Study1,
'Study#1:Series#0 number of files'
);
// files
const files00 = [];
let iStart = 0;
let iEnd = nFilesSeries0Study0;
for (let i = iStart; i < iEnd; ++i) {
files00.push('IMAGES/IM' + i);
}
assert.deepEqual(list[0][0], files00, 'Study#0:Series#0 file names');
const files01 = [];
iStart = iEnd;
iEnd += nFilesSeries1Study0;
for (let i = iStart; i < iEnd; ++i) {
files01.push('IMAGES/IM' + i);
}
assert.deepEqual(list[0][0], files00, 'Study#0:Series#1 file names');
const files10 = [];
iStart = iEnd;
iEnd += nFilesSeries0Study1;
for (let i = iStart; i < iEnd; ++i) {
files10.push('IMAGES/IM' + i);
}
assert.deepEqual(list[0][0], files00, 'Study#1:Series#0 file names');
});