77 lines
4.3 KiB
JavaScript
77 lines
4.3 KiB
JavaScript
export async function runBrowserOpfsMirrorSections(context, simulator) {
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const {
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expectMissingWasmPath,
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expectText,
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runSection,
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} = context;
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await runSection("opfs wasm mirror persist file", async () => {
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const wasmPath = simulator.fs.opfs.resolvePath("programs/browser-smoke.ngc");
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const wasmDecoded = new TextDecoder().decode(simulator.fs.module.FS.readFile(wasmPath));
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expectText(wasmDecoded, "G21 G90\nG0 X1\n", "OPFS file was not mirrored into the WASM filesystem");
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const persistedPath = simulator.fs.opfs.resolvePath("programs/browser-persisted.ngc");
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simulator.fs.module.FS.writeFile(persistedPath, new TextEncoder().encode("G21 G90\nG0 X2\n"));
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const persisted = new TextDecoder().decode(await simulator.fs.opfs.persistFile("programs/browser-persisted.ngc"));
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expectText(persisted, "G21 G90\nG0 X2\n", "WASM filesystem file was not persisted into OPFS");
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const persistedDecoded = new TextDecoder().decode(
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await simulator.fs.opfs.readFile("programs/browser-persisted.ngc"),
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);
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expectText(persistedDecoded, "G21 G90\nG0 X2\n",
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"persisted WASM filesystem file was not readable from OPFS");
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});
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await runSection("opfs copy and move mirror files", async () => {
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// LinuxCNC source basis: rs274ngc_pre.cc save_parameters()
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// links the current parameter file to filename + ".bak", then
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// writes filename + ".new" and renames it over the parameter file.
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await simulator.fs.opfs.writeFile("parameters/move-main.var", "5161\t1.000000\n");
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const copiedParameterBackup = new TextDecoder().decode(
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await simulator.fs.opfs.copyFile("parameters/move-main.var", "parameters/move-main.var.bak"),
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);
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expectText(copiedParameterBackup, "5161\t1.000000\n",
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"OPFS copyFile did not return the copied file contents");
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const copiedParameterBackupFile = new TextDecoder().decode(
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await simulator.fs.opfs.readFile("parameters/move-main.var.bak"),
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);
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expectText(copiedParameterBackupFile, "5161\t1.000000\n",
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"OPFS copyFile did not create the backup file");
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const copiedParameterBackupWasmPath = simulator.fs.opfs.resolvePath("parameters/move-main.var.bak");
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const copiedParameterBackupWasm = new TextDecoder().decode(
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simulator.fs.module.FS.readFile(copiedParameterBackupWasmPath),
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);
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expectText(copiedParameterBackupWasm, "5161\t1.000000\n",
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"OPFS copyFile did not update the WASM mirror destination");
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await simulator.fs.opfs.writeFile("parameters/move-main.var.new", "5161\t2.000000\n");
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await simulator.fs.opfs.moveFile("parameters/move-main.var.new", "parameters/move-main.var");
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const movedParameterFile = new TextDecoder().decode(
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await simulator.fs.opfs.readFile("parameters/move-main.var"),
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);
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expectText(movedParameterFile, "5161\t2.000000\n",
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"OPFS moveFile did not replace the destination file");
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if (await simulator.fs.opfs.exists("parameters/move-main.var.new")) {
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throw new Error("OPFS moveFile left the source file behind");
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}
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const movedParameterWasmPath = simulator.fs.opfs.resolvePath("parameters/move-main.var");
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const movedParameterWasm = new TextDecoder().decode(
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simulator.fs.module.FS.readFile(movedParameterWasmPath),
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);
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expectText(movedParameterWasm, "5161\t2.000000\n",
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"OPFS moveFile did not update the WASM mirror destination");
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const movedTemporaryWasmPath = simulator.fs.opfs.resolvePath("parameters/move-main.var.new");
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expectMissingWasmPath(
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() => simulator.fs.module.FS.stat(movedTemporaryWasmPath),
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"OPFS moveFile left the WASM mirror source behind",
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);
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});
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await runSection("opfs write truncates wasm mirror", async () => {
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await simulator.fs.opfs.writeFile("programs/truncate.ngc", "G21 G90\nG0 X12345\nM30\n");
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await simulator.fs.opfs.writeFile("programs/truncate.ngc", "G21\n");
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const truncatedProgram = new TextDecoder().decode(await simulator.fs.opfs.readFile("programs/truncate.ngc"));
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expectText(truncatedProgram, "G21\n", "OPFS writeFile did not truncate stale program bytes");
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const truncatedWasmPath = simulator.fs.opfs.resolvePath("programs/truncate.ngc");
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const truncatedWasmProgram = new TextDecoder().decode(simulator.fs.module.FS.readFile(truncatedWasmPath));
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expectText(truncatedWasmProgram, "G21\n", "OPFS writeFile did not truncate the WASM mirror");
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});
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}
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