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test: add smoke test for "nydus-image inspect"
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We use the output result of request_mode for verification.

In ./tests/texture/image-inspect/*.result, there stores the output
result of executing cmd
`nydus-image inspect -B ./tests/texture/bootstrap/image_v2.boot -R *`
with `nydus-image` that has not been refactored.

Then we load the result and compare them with result using the
refactored `nydus-image` to do the smoke test.

Signed-off-by: YushuoEdge <[email protected]>
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@YushuoEdge
YushuoEdge committed Sep 18, 2022
1 parent c4b51fa commit 117022f
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86 changes: 86 additions & 0 deletions tests/inspect.rs
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use std::{fs::File, io::Read};
use nydus_utils::exec;
use serde_json::Value::{self, Null};

pub fn test_image_inspect_cmd(cmd: &str, bootstrap_path: &str) {
let nydus_image = std::env::var("NYDUS_IMAGE").unwrap_or_else(|_| String::from("./target/debug/nydus-image"));

let output = exec(
format!("{} inspect -B {} -R {}", nydus_image, bootstrap_path, cmd).as_str(),
true,
b"",
).unwrap();
let mut expected = String::new();

let mut texture = File::open(format!("./tests/texture/image-inspect/{}.result", cmd)).unwrap();
texture.read_to_string(&mut expected).unwrap();
is_right(cmd, output, expected);
}

fn is_right(cmd: &str, output: String, expected: String) {
match cmd {
"stats" => is_right_stats(output, expected),
"prefetch" => is_right_prefetch(output, expected),
"blobs" => is_right_blobs(output, expected),
_ => println!("This cmd is not supported now!")
}
}

fn is_right_stats(output: String, expected: String) {
let output_value: Value = serde_json::from_str(output.as_str()).unwrap();
let expected_value: Value = serde_json::from_str(expected.as_str()).unwrap();
assert_eq!(output_value["inodes_count".to_string()], expected_value["inodes_count".to_string()]);
}

fn is_right_prefetch(output: String, expected: String) {
let output_value: Vec<Value> = serde_json::from_str(output.as_str()).unwrap();
let expected_value: Vec<Value> = serde_json::from_str(expected.as_str()).unwrap();

assert_eq!(output_value.len(), expected_value.len());
for index in 0..expected_value.len() {
let expected_v = expected_value.get(index).unwrap();
let mut matched = false;
for output_v in output_value.iter() {
if output_v["inode"] == expected_v["inode"] {
assert_eq!(output_v["path"], expected_v["path"]);
matched = true;
break;
}
}
assert!(matched);
}
}

fn is_right_blobs(output: String, expected: String) {
let output_value: Vec<Value> = serde_json::from_str(output.as_str()).unwrap();
let expected_value: Vec<Value> = serde_json::from_str(expected.as_str()).unwrap();

assert_eq!(output_value.len(), expected_value.len());
for index in 0..expected_value.len() {
let expected_v = expected_value.get(index).unwrap();
let mut matched = false;
for output_v in output_value.iter() {
if output_v["blob_id"] == expected_v["blob_id"] {
if expected_v["compressed_size"] == Null {
assert_eq!(0 as i32, output_v["compressed_size"]);
} else {
assert_eq!(expected_v["compressed_size"], output_v["compressed_size"])
}

if expected_v["decompressed_size"] == Null {
assert_eq!(0 as i32, output_v["decompressed_size"]);
} else {
assert_eq!(expected_v["decompressed_size"], output_v["decompressed_size"]);
}

assert_eq!(expected_v["readahead_offset"], output_v["readahead_offset"]);
assert_eq!(expected_v["readahead_size"], output_v["readahead_size"]);

matched = true;
break;
}
}

assert!(matched);
}
}
11 changes: 11 additions & 0 deletions tests/smoke.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,9 @@ use vmm_sys_util::tempdir::TempDir;

mod builder;
mod nydusd;
mod inspect;

use crate::inspect::test_image_inspect_cmd;

const COMPAT_BOOTSTRAPS: [&str; 2] = [
"blake3-lz4_block-non_repeatable",
Expand Down Expand Up @@ -396,3 +399,11 @@ fn test_unpack(work_dir: &Path, version: &str) {

assert_eq!(ret.trim(), expected.trim());
}

#[test]
fn test_image_inspect() {
let bootstrap_path = "./tests/texture/bootstrap/image_v2.boot";
test_image_inspect_cmd("stats", bootstrap_path);
test_image_inspect_cmd("prefetch", bootstrap_path);
test_image_inspect_cmd("blobs", bootstrap_path);
}
128 changes: 128 additions & 0 deletions tests/texture/image-inspect/blobs.result
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@@ -0,0 +1,128 @@
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"readahead_offset":0,
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},
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]
1 change: 1 addition & 0 deletions tests/texture/image-inspect/prefetch.result
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@@ -0,0 +1 @@
[{"inode":1,"path":"/"}]
1 change: 1 addition & 0 deletions tests/texture/image-inspect/stats.result
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{"inodes_count":43082}

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