mirror of
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272 lines
9.5 KiB
TypeScript
272 lines
9.5 KiB
TypeScript
import * as imageSource from "tns-core-modules/image-source";
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import * as imageAssetModule from "tns-core-modules/image-asset";
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import * as fs from "tns-core-modules/file-system";
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import * as app from "tns-core-modules/application";
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import * as TKUnit from "../TKUnit";
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import * as platform from "tns-core-modules/platform";
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const imagePath = "~/logo.png";
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const splashscreenPath = "~/splashscreen.png";
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const splashscreenWidth = 372;
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const splashscreenHeight = 218;
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const smallImagePath = "~/small-image.png";
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export function testFromResource() {
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// >> imagesource-resname
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const img = imageSource.fromResource("icon");
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// << imagesource-resname
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TKUnit.assert(img.height > 0, "image.fromResource failed");
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}
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export function testFromUrl(done) {
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let result: imageSource.ImageSource;
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// Deprecated method fromUrl
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imageSource.fromUrl("https://www.google.com/images/errors/logo_sm_2.png")
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.then((res: imageSource.ImageSource) => {
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// console.log("Image successfully loaded");
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// completed = true;
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result = res;
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try {
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TKUnit.assertNotEqual(result, undefined, "Image not downloaded");
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TKUnit.assert(result.height > 0, "Image not downloaded");
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done(null);
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}
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catch (e) {
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done(e);
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}
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}, (error) => {
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// console.log("Error loading image: " + error);
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//completed = true;
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done(error);
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});
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}
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export function testSaveToFile() {
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// >> imagesource-save-to
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const img = imageSource.fromFile(imagePath);
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const folder = fs.knownFolders.documents();
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const path = fs.path.join(folder.path, "test.png");
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const saved = img.saveToFile(path, "png");
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// << imagesource-save-to
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TKUnit.assert(saved, "Image not saved to file");
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TKUnit.assert(fs.File.exists(path), "Image not saved to file");
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}
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export function testSaveToFile_WithQuality() {
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const img = imageSource.fromFile(imagePath);
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const folder = fs.knownFolders.documents();
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const path = fs.path.join(folder.path, "test.png");
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const saved = img.saveToFile(path, "png", 70);
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TKUnit.assert(saved, "Image not saved to file");
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TKUnit.assert(fs.File.exists(path), "Image not saved to file");
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}
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export function testFromFile() {
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// >> imagesource-load-local
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const folder = fs.knownFolders.documents();
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const path = fs.path.join(folder.path, "test.png");
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const img = imageSource.fromFile(path);
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// << imagesource-load-local
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TKUnit.assert(img.height > 0, "image.fromResource failed");
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// remove the image from the file system
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const file = folder.getFile("test.png");
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file.remove();
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TKUnit.assert(!fs.File.exists(path), "test.png not removed");
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}
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export function testFromAssetFileNotFound(done) {
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let asset = new imageAssetModule.ImageAsset('invalidFile.png');
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asset.options = {
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width: 0,
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height: 0,
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keepAspectRatio: true
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};
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let img = imageSource.fromAsset(asset).then((source) => {
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done('Should not resolve with invalid file name.');
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}, (error) => {
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TKUnit.assertNotNull(error);
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done();
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});
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}
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export function testFromAssetSimple(done) {
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let asset = new imageAssetModule.ImageAsset(splashscreenPath);
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asset.options = {
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width: 0,
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height: 0,
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keepAspectRatio: true
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};
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let img = imageSource.fromAsset(asset).then((source) => {
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TKUnit.assertEqual(source.width, splashscreenWidth);
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TKUnit.assertEqual(source.height, splashscreenHeight);
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done();
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}, (error) => {
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done(error);
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});
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}
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export function testFromAssetWithScaling(done) {
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let asset = new imageAssetModule.ImageAsset(splashscreenPath);
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let scaleWidth = 10;
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let scaleHeight = 11;
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asset.options = {
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width: scaleWidth,
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height: scaleHeight,
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keepAspectRatio: false
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};
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let img = imageSource.fromAsset(asset).then((source) => {
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TKUnit.assertEqual(source.width, scaleWidth);
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TKUnit.assertEqual(source.height, scaleHeight);
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done();
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}, (error) => {
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done(error);
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});
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}
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export function testFromAssetWithScalingAndAspectRatio(done) {
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let asset = new imageAssetModule.ImageAsset(splashscreenPath);
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let scaleWidth = 10;
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let scaleHeight = 11;
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asset.options = {
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width: scaleWidth,
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height: scaleHeight,
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keepAspectRatio: true
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};
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let img = imageSource.fromAsset(asset).then((source) => {
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TKUnit.assertEqual(source.width, 18);
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TKUnit.assertEqual(source.height, scaleHeight);
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done();
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}, (error) => {
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done(error);
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});
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}
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export function testFromAssetWithScalingAndDefaultAspectRatio(done) {
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let asset = new imageAssetModule.ImageAsset(splashscreenPath);
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let scaleWidth = 10;
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let scaleHeight = 11;
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asset.options.width = scaleWidth;
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asset.options.height = scaleHeight;
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let img = imageSource.fromAsset(asset).then((source) => {
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TKUnit.assertEqual(source.width, 18);
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TKUnit.assertEqual(source.height, scaleHeight);
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done();
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}, (error) => {
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done(error);
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});
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}
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export function testFromAssetWithBiggerScaling(done) {
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let asset = new imageAssetModule.ImageAsset(splashscreenPath);
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let scaleWidth = 600;
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let scaleHeight = 600;
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asset.options = {
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width: scaleWidth,
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height: scaleHeight,
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keepAspectRatio: false
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};
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let img = imageSource.fromAsset(asset).then((source) => {
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TKUnit.assertEqual(source.width, scaleWidth);
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TKUnit.assertEqual(source.height, scaleHeight);
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done();
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}, (error) => {
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done(error);
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});
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}
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export function testNativeFields() {
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const img = imageSource.fromFile(imagePath);
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if (app.android) {
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TKUnit.assert(img.android != null, "Image.android not updated.");
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} else if (app.ios) {
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TKUnit.assert(img.ios != null, "Image.ios not updated.");
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}
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}
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const fullAndroidPng = "iVBORw0KGgoAAAANSUhEUgAAAAQAAAAECAIAAAAmkwkpAAAAA3NCSVQICAjb4U/gAAAAFUlEQVQImWP8z4AAjAz/kTnIPGQAAG86AwGcuMlCAAAAAElFTkSuQmCC";
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const fullIosPng = "iVBORw0KGgoAAAANSUhEUgAAAAQAAAAECAIAAAAmkwkpAAAAAXNSR0IArs4c6QAAABxpRE9UAAAAAgAAAAAAAAACAAAAKAAAAAIAAAACAAAARiS4uJEAAAASSURBVBgZYvjPwABHSMz/DAAAAAD//0GWpK0AAAAOSURBVGNgYPiPhBgQAACEvQv1D5y/pAAAAABJRU5ErkJggg==";
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const jpgImageAsBase64String = "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";
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const expectedJpegStart = "/9j/4AAQSkZJRgAB";
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const expectedPngStart = "iVBORw0KGgoAAAANSUhEUgAAAAQAAAAECAIAAAAmkwkpAAA";
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export function testBase64Encode_PNG() {
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// >> imagesource-to-base-string
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const img = imageSource.fromFile(smallImagePath);
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let base64String = img.toBase64String("png");
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// << imagesource-to-base-string
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base64String = base64String.substr(0, expectedPngStart.length);
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TKUnit.assertEqual(
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base64String,
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expectedPngStart,
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"Base 64 encoded PNG");
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}
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export function testBase64Encode_PNG_WithQuality() {
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const img = imageSource.fromFile(smallImagePath);
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let base64String = img.toBase64String("png", 80);
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base64String = base64String.substr(0, expectedPngStart.length);
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TKUnit.assertEqual(
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base64String,
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expectedPngStart,
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"Base 64 encoded PNG");
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}
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export function testBase64Encode_JPEG() {
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const img = imageSource.fromFile(smallImagePath);
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let base64String = img.toBase64String("jpeg");
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base64String = base64String.substr(0, expectedJpegStart.length);
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TKUnit.assertEqual(
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base64String,
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expectedJpegStart,
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"Base 64 encoded JPEG");
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}
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export function testBase64Encode_JPEG_With_Quality() {
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const img = imageSource.fromFile(smallImagePath);
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let base64String = img.toBase64String("jpeg", 80);
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base64String = base64String.substr(0, expectedJpegStart.length);
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TKUnit.assertEqual(
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base64String,
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expectedJpegStart,
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"Base 64 encoded JPEG");
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}
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export function testLoadFromBase64Encode_JPEG() {
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// >> imagesource-from-base-string
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let img: imageSource.ImageSource;
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img = imageSource.fromBase64(jpgImageAsBase64String);
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// << imagesource-from-base-string
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TKUnit.assert(img !== null, "Actual: " + img);
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TKUnit.assertEqual(img.width, 4, "img.width");
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TKUnit.assertEqual(img.height, 4, "img.height");
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}
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export function testLoadFromBase64Encode_PNG() {
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let img: imageSource.ImageSource;
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if (app.android) {
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img = imageSource.fromBase64(fullAndroidPng);
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} else if (app.ios) {
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img = imageSource.fromBase64(fullIosPng);
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}
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TKUnit.assert(img !== null, "Actual: " + img);
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TKUnit.assertEqual(img.width, 4, "img.width");
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TKUnit.assertEqual(img.height, 4, "img.height");
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}
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