1 files changed, 81 insertions, 7 deletions
diff --git a/tests/integration_tests.rs b/tests/integration_tests.rs
index c589db0..ea7cfc1 100644
--- a/tests/integration_tests.rs
+++ b/tests/integration_tests.rs
@@ -1,9 +1,13 @@
 use std::process::Command;
 use std::str;
 
+fn command() -> Command {
+    Command::new(env!("CARGO_BIN_EXE_mikusays"))
+}
+
 #[test]
 fn test_cli_list_styles() {
-    let output = Command::new("target/debug/mikusays")
+    let output = command()
         .arg("--list")
         .output()
         .expect("Failed to execute command");
@@ -19,9 +23,7 @@ fn test_cli_list_styles() {
 
 #[test]
 fn test_cli_error_no_text() {
-    let output = Command::new("target/debug/mikusays")
-        .output()
-        .expect("Failed to execute command");
+    let output = command().output().expect("Failed to execute command");
 
     assert!(!output.status.success());
     let stderr = str::from_utf8(&output.stderr).expect("Invalid UTF-8");
@@ -30,7 +32,7 @@ fn test_cli_error_no_text() {
 
 #[test]
 fn test_cli_error_conflicting_args() {
-    let output = Command::new("target/debug/mikusays")
+    let output = command()
         .arg("Test")
         .arg("--rainbow")
         .arg("--color")
@@ -40,16 +42,88 @@ fn test_cli_error_conflicting_args() {
 
     assert!(!output.status.success());
     let stderr = str::from_utf8(&output.stderr).expect("Invalid UTF-8");
-    assert!(stderr.contains("Cannot use --rainbow and --color together"));
+    assert!(stderr.contains("cannot be used with"));
 }
 
 #[test]
 fn test_cli_basic_functionality() {
     // Test that the binary runs and produces some output
-    let output = Command::new("target/debug/mikusays")
+    let output = command()
         .arg("--list")
         .output()
         .expect("Failed to execute command");
 
     assert!(output.status.success());
 }
+
+#[test]
+fn test_cli_no_color_overrides_solid_color() {
+    let output = command()
+        .args(["test", "--style", "0", "--color", "red", "--no-color"])
+        .env("TERM", "xterm-256color")
+        .output()
+        .expect("Failed to execute command");
+
+    assert!(output.status.success());
+    assert!(!output.stdout.contains(&0x1b));
+}
+
+#[test]
+fn test_cli_no_color_environment_overrides_gradient() {
+    let output = command()
+        .args(["test", "--style", "0", "--gradient", "red:blue"])
+        .env("NO_COLOR", "1")
+        .env("TERM", "xterm-256color")
+        .output()
+        .expect("Failed to execute command");
+
+    assert!(output.status.success());
+    assert!(!output.stdout.contains(&0x1b));
+}
+
+#[test]
+fn test_cli_rejects_out_of_range_style_without_panicking() {
+    let output = command()
+        .args(["test", "--style", "999"])
+        .output()
+        .expect("Failed to execute command");
+
+    assert_eq!(output.status.code(), Some(2));
+    let stderr = str::from_utf8(&output.stderr).expect("Invalid UTF-8");
+    assert!(stderr.contains("style 999 does not exist"));
+    assert!(!stderr.contains("panicked"));
+}
+
+#[test]
+fn test_cli_rejects_negative_style() {
+    let output = command()
+        .args(["test", "--style", "-1"])
+        .output()
+        .expect("Failed to execute command");
+
+    assert_eq!(output.status.code(), Some(2));
+    let stderr = str::from_utf8(&output.stderr).expect("Invalid UTF-8");
+    assert!(!stderr.contains("panicked"));
+}
+
+#[test]
+fn test_cli_rejects_out_of_range_saturation() {
+    let output = command()
+        .args(["test", "--rainbow", "--saturation", "101"])
+        .output()
+        .expect("Failed to execute command");
+
+    assert_eq!(output.status.code(), Some(2));
+}
+
+#[test]
+fn test_cli_rejects_invalid_color() {
+    let output = command()
+        .args(["test", "--color", "not-a-color"])
+        .output()
+        .expect("Failed to execute command");
+
+    assert_eq!(output.status.code(), Some(2));
+    let stderr = str::from_utf8(&output.stderr).expect("Invalid UTF-8");
+    assert!(stderr.contains("invalid color 'not-a-color'"));
+}