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preprocessors.test.ts
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preprocessors.test.ts
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/* eslint-disable deprecation/deprecation */
import { componentTrackingPreprocessor, defaultComponentTrackingOptions } from '../src/preprocessors';
function expectComponentCodeToBeModified(
preprocessedComponents: {
originalCode: string;
filename: string;
name: string;
newCode: string;
map: any;
}[],
options: any,
) {
const expectedImportStmt = 'import { trackComponent } from "@sentry/svelte";\n';
preprocessedComponents.forEach(cmp => {
const expectedFunctionCallOptions = {
trackInit: options?.trackInit ?? true,
trackUpdates: options?.trackUpdates ?? true,
componentName: cmp.name,
};
const expectedFunctionCall = `trackComponent(${JSON.stringify(expectedFunctionCallOptions)});\n`;
expect(cmp.newCode).toBeDefined();
expect(cmp.map).toBeDefined();
expect(cmp.newCode).toEqual(`${expectedImportStmt}${expectedFunctionCall}${cmp.originalCode}`);
});
}
describe('componentTrackingPreprocessor', () => {
it('correctly inits the script preprocessor', () => {
const preProc = componentTrackingPreprocessor();
expect(preProc.script).toBeDefined();
expect(preProc.markup).toBeUndefined();
expect(preProc.style).toBeUndefined();
});
it.each([
['no options', undefined],
['default options', defaultComponentTrackingOptions],
['custom options (init 0, updates 0)', { trackInit: false, trackUpdates: false }],
['custom options (init 0, updates 1)', { trackInit: false, trackUpdates: true }],
['custom options (init 1, updates 0)', { trackInit: true, trackUpdates: false }],
['custom options (init 1, updates 1)', { trackInit: true, trackUpdates: true }],
])('adds the function call to all components if %s are set', (_, options) => {
const preProc = componentTrackingPreprocessor(options);
const components = [
{ originalCode: 'console.log(cmp1);', filename: 'components/Cmp1.svelte', name: 'Cmp1' },
{ originalCode: 'console.log(cmp2);', filename: 'components/Cmp2.svelte', name: 'Cmp2' },
{ originalCode: 'console.log(cmp3);', filename: 'components/Cmp3.svelte', name: 'Cmp3' },
];
const preprocessedComponents = components.map(cmp => {
const res: any =
preProc.script &&
preProc.script({
content: cmp.originalCode,
filename: cmp.filename,
attributes: {},
markup: '',
});
return { ...cmp, newCode: res.code, map: res.map };
});
expectComponentCodeToBeModified(preprocessedComponents, options);
});
it('does not add the function call to any component if `trackComponents` is set to `false`', () => {
const preProc = componentTrackingPreprocessor({ trackComponents: false });
const components = [
{ originalCode: 'console.log(cmp1)', filename: 'components/Cmp1.svelte', name: 'Cmp1' },
{ originalCode: 'console.log(cmp2)', filename: 'components/Cmp2.svelte', name: 'Cmp2' },
{ originalCode: 'console.log(cmp3)', filename: 'components/Cmp3.svelte', name: 'Cmp3' },
];
const preprocessedComponents = components.map(cmp => {
const res: any =
preProc.script &&
preProc.script({
content: cmp.originalCode,
filename: cmp.filename,
attributes: {},
markup: '',
});
return { ...cmp, newCode: res.code, map: res.map };
});
preprocessedComponents.forEach(cmp => {
expect(cmp.newCode).toEqual(cmp.originalCode);
});
});
it('adds the function call to specific components if specified in `trackComponents`', () => {
const preProc = componentTrackingPreprocessor({ trackComponents: ['Cmp1', 'Cmp3'] });
const components = [
{ originalCode: 'console.log(cmp1)', filename: 'components/Cmp1.svelte', name: 'Cmp1' },
{ originalCode: 'console.log(cmp2)', filename: 'lib/Cmp2.svelte', name: 'Cmp2' },
{ originalCode: 'console.log(cmp3)', filename: 'lib/subdir/sub/Cmp3.svelte', name: 'Cmp3' },
];
const [cmp1, cmp2, cmp3] = components.map(cmp => {
const res: any =
preProc.script &&
preProc.script({
content: cmp.originalCode,
filename: cmp.filename,
attributes: {},
markup: '',
});
return { ...cmp, newCode: res.code, map: res.map };
});
expect(cmp2.newCode).toEqual(cmp2.originalCode);
expectComponentCodeToBeModified([cmp1, cmp3], { trackInit: true, trackUpdates: true });
});
it('doesnt inject the function call to the same component more than once', () => {
const preProc = componentTrackingPreprocessor();
const components = [
{
originalCode: 'console.log(cmp1)',
filename: 'components/Cmp1.svelte',
name: 'Cmp1',
},
{
originalCode:
'import { trackComponent } from "@sentry/svelte";\ntrackComponent({"trackInit":true,"trackUpdates":true,"componentName":"Cmp1"});\nconsole.log(cmp1)',
filename: 'components/Cmp1.svelte',
name: 'Cmp1',
},
{
originalCode: 'console.log(cmp2)',
filename: 'lib/Cmp2.svelte',
name: 'Cmp2',
},
];
const [cmp11, cmp12, cmp2] = components.map(cmp => {
const res: any =
preProc.script &&
preProc.script({
content: cmp.originalCode,
filename: cmp.filename,
attributes: {},
markup: '',
});
return { ...cmp, newCode: res.code, map: res.map };
});
expectComponentCodeToBeModified([cmp11, cmp2], { trackInit: true, trackUpdates: true });
expect(cmp12.newCode).toEqual(cmp12.originalCode);
});
it('doesnt inject the function call to a module context script block', () => {
const preProc = componentTrackingPreprocessor();
const component = {
originalCode: 'console.log(cmp2)',
filename: 'lib/Cmp2.svelte',
name: 'Cmp2',
};
const res: any =
preProc.script &&
preProc.script({
content: component.originalCode,
filename: component.filename,
attributes: { context: 'module' },
markup: '',
});
const processedComponent = { ...component, newCode: res.code, map: res.map };
expect(processedComponent.newCode).toEqual(processedComponent.originalCode);
});
});