test: Verify CI behavior

Author: epage

tests/custom-panic/tests/integration.rs

@@ -2,6 +2,7 @@
 #[cfg_attr(debug_assertions, ignore)]
 fn release() {
     snapbox::cmd::Command::new(snapbox::cmd::cargo_bin!("custom-panic-test"))
+        .env_remove("CI")
         .assert()
         .stderr_eq(snapbox::str![[r#"
 Well, this is embarrassing.
@@ -29,6 +30,7 @@ Thank you kindly!
 #[cfg_attr(not(debug_assertions), ignore)]
 fn debug() {
     snapbox::cmd::Command::new(snapbox::cmd::cargo_bin!("custom-panic-test"))
+        .env_remove("CI")
         .assert()
         .stderr_eq(snapbox::str![[r#"
 

tests/single-panic/tests/integration.rs

@@ -11,6 +11,7 @@ fn release() {
 
     snapbox::cmd::Command::new(snapbox::cmd::cargo_bin!("single-panic-test"))
         .envs(envs)
+        .env_remove("CI")
         .assert()
         .stderr_eq(snapbox::str![[r#"
 Well, this is embarrassing.
@@ -78,6 +79,7 @@ fn release_with_backtraces() {
 
     snapbox::cmd::Command::new(snapbox::cmd::cargo_bin!("single-panic-test"))
         .envs(envs)
+        .env_remove("CI")
         .env("RUST_BACKTRACE", "1")
         .assert()
         .stderr_eq(snapbox::str![[r#"
@@ -109,6 +111,74 @@ note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose bac
     root.close().unwrap();
 }
 
+#[test]
+#[cfg_attr(debug_assertions, ignore)]
+fn release_with_ci() {
+    let root = snapbox::dir::DirRoot::mutable_temp().unwrap();
+    let root_path = root.path().unwrap();
+
+    #[cfg(unix)]
+    let envs = [("TMPDIR", root_path)];
+    #[cfg(not(unix))]
+    let envs: [(&str, &str); 0] = [];
+
+    snapbox::cmd::Command::new(snapbox::cmd::cargo_bin!("single-panic-test"))
+        .envs(envs)
+        .env("CI", "1")
+        .assert()
+        .stderr_eq(snapbox::str![[r#"
+Well, this is embarrassing.
+
+single-panic-test had a problem and crashed. To help us diagnose the problem you can send us a crash report.
+
+We have generated a report file at "[..].toml". Submit an issue or email with the subject of "single-panic-test Crash Report" and include the report as an attachment.
+
+- Authors: Human Panic Authors <human-panic-crate@example.com>
+
+We take privacy seriously, and do not perform any automated error collection. In order to improve the software, we rely on people to submit reports.
+
+Thank you kindly!
+
+"#]])
+        .code(101);
+
+    #[cfg(unix)]
+    {
+        let mut files = root_path
+            .read_dir()
+            .unwrap()
+            .map(|e| {
+                let e = e.unwrap();
+                let path = e.path();
+                let content = std::fs::read_to_string(&path);
+                (path, content)
+            })
+            .collect::<Vec<_>>();
+        assert_eq!(files.len(), 1, "{files:?}");
+        let (_, report) = files.pop().unwrap();
+        let report = report.unwrap();
+        snapbox::assert_data_eq!(
+            report,
+            snapbox::str![[r#"
+name = "single-panic-test"
+operating_system = "[..]"
+crate_version = "0.1.0"
+explanation = """
+Panic occurred in file 'tests/single-panic/src/main.rs' at line [..]
+"""
+cause = "OMG EVERYTHING IS ON FIRE!!!"
+method = "Panic"
+backtrace = """
+...
+"""
+
+"#]]
+        );
+    }
+
+    root.close().unwrap();
+}
+
 #[test]
 #[cfg_attr(not(debug_assertions), ignore)]
 fn debug() {
@@ -122,6 +192,7 @@ fn debug() {
 
     snapbox::cmd::Command::new(snapbox::cmd::cargo_bin!("single-panic-test"))
         .envs(envs)
+        .env_remove("CI")
         .assert()
         .stderr_eq(snapbox::str![[r#"