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textStorage.ts
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70 lines (55 loc) · 3.26 KB
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/// <reference path="../harness.ts" />
/// <reference path="../../server/scriptVersionCache.ts"/>
/// <reference path="./tsserverProjectSystem.ts" />
namespace ts.textStorage {
describe("Text storage", () => {
const f = {
path: "/a/app.ts",
content: `
let x = 1;
let y = 2;
function bar(a: number) {
return a + 1;
}`
};
it("text based storage should be have exactly the same as script version cache", () => {
const host = ts.projectSystem.createServerHost([f]);
const ts1 = new server.TextStorage(host, server.asNormalizedPath(f.path));
const ts2 = new server.TextStorage(host, server.asNormalizedPath(f.path));
ts1.useScriptVersionCache_TestOnly();
ts2.useText();
const lineMap = computeLineStarts(f.content);
for (let line = 0; line < lineMap.length; line++) {
const start = lineMap[line];
const end = line === lineMap.length - 1 ? f.path.length : lineMap[line + 1];
for (let offset = 0; offset < end - start; offset++) {
const pos1 = ts1.lineOffsetToPosition(line + 1, offset + 1);
const pos2 = ts2.lineOffsetToPosition(line + 1, offset + 1);
assert.isTrue(pos1 === pos2, `lineOffsetToPosition ${line + 1}-${offset + 1}: expected ${pos1} to equal ${pos2}`);
}
const {start: start1, length: length1 } = ts1.lineToTextSpan(line);
const {start: start2, length: length2 } = ts2.lineToTextSpan(line);
assert.isTrue(start1 === start2, `lineToTextSpan ${line}::start:: expected ${start1} to equal ${start2}`);
assert.isTrue(length1 === length2, `lineToTextSpan ${line}::length:: expected ${length1} to equal ${length2}`);
}
for (let pos = 0; pos < f.content.length; pos++) {
const { line: line1, offset: offset1 } = ts1.positionToLineOffset(pos);
const { line: line2, offset: offset2 } = ts2.positionToLineOffset(pos);
assert.isTrue(line1 === line2, `positionToLineOffset ${pos}::line:: expected ${line1} to equal ${line2}`);
assert.isTrue(offset1 === offset2, `positionToLineOffset ${pos}::offset:: expected ${offset1} to equal ${offset2}`);
}
});
it("should switch to script version cache if necessary", () => {
const host = ts.projectSystem.createServerHost([f]);
const ts1 = new server.TextStorage(host, server.asNormalizedPath(f.path));
ts1.getSnapshot();
assert.isTrue(!ts1.hasScriptVersionCache_TestOnly(), "should not have script version cache - 1");
ts1.edit(0, 5, " ");
assert.isTrue(ts1.hasScriptVersionCache_TestOnly(), "have script version cache - 1");
ts1.useText();
assert.isTrue(!ts1.hasScriptVersionCache_TestOnly(), "should not have script version cache - 2");
ts1.getLineInfo(0);
assert.isTrue(ts1.hasScriptVersionCache_TestOnly(), "have script version cache - 2");
});
});
}