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'use strict';
const Path = require('path');
const { test } = require('tap');
const startCLI = require('./start-cli');
test('stepping through breakpoints', (t) => {
const script = Path.join('examples', 'break.js');
const cli = startCLI([script]);
function onFatal(error) {
cli.quit();
throw error;
}
return cli.waitForInitialBreak()
.then(() => cli.waitForPrompt())
.then(() => {
t.match(
cli.breakInfo,
{ filename: script, line: 1 },
'pauses in the first line of the script');
t.match(
cli.output,
/> 1 (?:\(function \([^)]+\) \{ )?const x = 10;/,
'shows the source and marks the current line');
})
.then(() => cli.stepCommand('n'))
.then(() => {
t.match(
cli.output,
`break in ${script}:2`,
'pauses in next line of the script');
t.match(
cli.output,
'> 2 let name = \'World\';',
'marks the 2nd line');
})
.then(() => cli.stepCommand('next'))
.then(() => {
t.match(
cli.output,
`break in ${script}:3`,
'pauses in next line of the script');
t.match(
cli.output,
'> 3 name = \'Robin\';',
'marks the 3nd line');
})
.then(() => cli.stepCommand('cont'))
.then(() => {
t.match(
cli.output,
`break in ${script}:10`,
'pauses on the next breakpoint');
t.match(
cli.output,
'>10 debugger;',
'marks the debugger line');
})
// Prepare additional breakpoints
.then(() => cli.command('sb("break.js", 6)'))
.then(() => t.notMatch(cli.output, 'Could not resolve breakpoint'))
.then(() => cli.command('sb("otherFunction()")'))
.then(() => cli.command('sb(16)'))
.then(() => t.notMatch(cli.output, 'Could not resolve breakpoint'))
.then(() => cli.command('breakpoints'))
.then(() => {
t.match(cli.output, `#0 ${script}:6`);
t.match(cli.output, `#1 ${script}:16`);
})
.then(() => cli.command('list()'))
.then(() => {
t.match(cli.output, '>10 debugger;', 'prints and marks current line');
t.strictDeepEqual(
cli.parseSourceLines(),
[5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15],
'prints 5 lines before and after');
})
.then(() => cli.command('list(2)'))
.then(() => {
t.match(cli.output, '>10 debugger;', 'prints and marks current line');
t.strictDeepEqual(
cli.parseSourceLines(),
[8, 9, 10, 11, 12],
'prints 2 lines before and after');
})
.then(() => cli.stepCommand('s'))
.then(() => cli.stepCommand(''))
.then(() => {
t.match(
cli.output,
'break in timers.js',
'entered timers.js');
})
.then(() => cli.stepCommand('cont'))
.then(() => {
t.match(
cli.output,
`break in ${script}:16`,
'found breakpoint we set above w/ line number only');
})
.then(() => cli.stepCommand('cont'))
.then(() => {
t.match(
cli.output,
`break in ${script}:6`,
'found breakpoint we set above w/ line number & script');
})
.then(() => cli.stepCommand(''))
.then(() => {
t.match(
cli.output,
`debugCommand in ${script}:14`,
'found function breakpoint we set above');
})
.then(() => cli.quit())
.then(null, onFatal);
});
test('sb before loading file', (t) => {
const script = Path.join('examples', 'cjs', 'index.js');
const otherScript = Path.join('examples', 'cjs', 'other.js');
const cli = startCLI([script]);
function onFatal(error) {
cli.quit();
throw error;
}
return cli.waitForInitialBreak()
.then(() => cli.waitForPrompt())
.then(() => cli.command('sb("other.js", 2)'))
.then(() => {
t.match(
cli.output,
'not loaded yet',
'warns that the script was not loaded yet');
})
.then(() => cli.stepCommand('cont'))
.then(() => {
t.match(
cli.output,
`break in ${otherScript}:2`,
'found breakpoint in file that was not loaded yet');
})
.then(() => cli.quit())
.then(null, onFatal);
});
test('clearBreakpoint', (t) => {
const script = Path.join('examples', 'break.js');
const cli = startCLI([script]);
function onFatal(error) {
cli.quit();
throw error;
}
return cli.waitForInitialBreak()
.then(() => cli.waitForPrompt())
.then(() => cli.command('sb("break.js", 3)'))
.then(() => cli.command('sb("break.js", 9)'))
.then(() => cli.command('breakpoints'))
.then(() => {
t.match(cli.output, `#0 ${script}:3`);
t.match(cli.output, `#1 ${script}:9`);
})
.then(() => cli.command('clearBreakpoint("break.js", 4)'))
.then(() => {
t.match(cli.output, 'Could not find breakpoint');
})
.then(() => cli.command('clearBreakpoint("not-such-script.js", 3)'))
.then(() => {
t.match(cli.output, 'Could not find breakpoint');
})
.then(() => cli.command('clearBreakpoint("break.js", 3)'))
.then(() => cli.command('breakpoints'))
.then(() => {
t.match(cli.output, `#0 ${script}:9`);
})
.then(() => cli.stepCommand('cont'))
.then(() => {
t.match(
cli.output,
`break in ${script}:9`,
'hits the 2nd breakpoint because the 1st was cleared');
})
.then(() => cli.quit())
.then(null, onFatal);
});