feat(test): allow dynamic mocking of commands (#2307)

1 files changed, 27 insertions, 1 deletions

diff --git a/src/modules/java.rs b/src/modules/java.rs
index 9fa1789b2..26745d7d5 100644
--- a/src/modules/java.rs
+++ b/src/modules/java.rs
@@ -91,7 +91,7 @@ fn parse_java_version(java_version: &str) -> Option<String> {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use crate::test::ModuleRenderer;
+    use crate::{test::ModuleRenderer, utils::CommandOutput};
     use ansi_term::Color;
     use std::fs::File;
     use std::io;
@@ -180,6 +180,32 @@ mod tests {
     }
 
     #[test]
+    fn folder_with_java_file_preview() -> io::Result<()> {
+        let dir = tempfile::tempdir()?;
+        File::create(dir.path().join("Main.java"))?.sync_all()?;
+        let actual = ModuleRenderer::new("java").cmd("java -Xinternalversion", Some(CommandOutput {
+            stdout: "OpenJDK 64-Bit Server VM (16+14) for bsd-aarch64 JRE (16+14), built on Jan 17 2021 07:19:47 by \"brew\" with clang Apple LLVM 12.0.0 (clang-1200.0.32.28)\n".to_owned(),
+            stderr: "".to_owned()
+        })).path(dir.path()).collect();
+        let expected = Some(format!("via {}", Color::Red.dimmed().paint("☕ v16 ")));
+        assert_eq!(expected, actual);
+        dir.close()
+    }
+
+    #[test]
+    fn folder_with_java_file_no_java_installed() -> io::Result<()> {
+        let dir = tempfile::tempdir()?;
+        File::create(dir.path().join("Main.java"))?.sync_all()?;
+        let actual = ModuleRenderer::new("java")
+            .cmd("java -Xinternalversion", None)
+            .path(dir.path())
+            .collect();
+        let expected = Some(format!("via {}", Color::Red.dimmed().paint("☕ ")));
+        assert_eq!(expected, actual);
+        dir.close()
+    }
+
+    #[test]
     fn folder_with_class_file() -> io::Result<()> {
         let dir = tempfile::tempdir()?;
         File::create(dir.path().join("Main.class"))?.sync_all()?;