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Test Info:
/* Any copyright is dedicated to the Public Domain.
"use strict";
// Testing evaluating thowing expressions
const {
DevToolsServer,
} = require("resource://devtools/server/devtools-server.js");
add_task(async () => {
const tab = await addTab(`data:text/html;charset=utf-8,Test throw`);
const commands = await CommandsFactory.forTab(tab);
await commands.targetCommand.startListening();
const falsyValues = [
"-0",
"null",
"undefined",
"Infinity",
"-Infinity",
"NaN",
];
for (const value of falsyValues) {
const response = await commands.scriptCommand.execute(`throw ${value};`);
is(
response.exception.type,
value,
`Got the expected value for response.exception.type when throwing "${value}"`
);
}
const identityTestValues = [false, 0];
for (const value of identityTestValues) {
const response = await commands.scriptCommand.execute(`throw ${value};`);
is(
response.exception,
value,
`Got the expected value for response.exception when throwing "${value}"`
);
}
const symbolTestValues = [
["Symbol.iterator", "Symbol(Symbol.iterator)"],
["Symbol('foo')", "Symbol(foo)"],
["Symbol()", "Symbol()"],
];
for (const [expr, message] of symbolTestValues) {
const response = await commands.scriptCommand.execute(`throw ${expr};`);
is(
response.exceptionMessage,
message,
`Got the expected value for response.exceptionMessage when throwing "${expr}"`
);
}
const longString = Array(DevToolsServer.LONG_STRING_LENGTH + 1).join("a"),
shortedString = longString.substring(
0,
DevToolsServer.LONG_STRING_INITIAL_LENGTH
);
const response = await commands.scriptCommand.execute(
"throw '" + longString + "';"
);
is(
response.exception.initial,
shortedString,
"Got the expected value for exception.initial when throwing a longString"
);
is(
response.exceptionMessage.initial,
shortedString,
"Got the expected value for exceptionMessage.initial when throwing a longString"
);
});