settings: add tests for SettingsExtManual

src/settings.rs

@@ -22,3 +22,65 @@ impl<O: IsA<Settings>> SettingsExtManual for O {
         self.set_value(key, &value.to_variant())
     }
 }
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use std::env::set_var;
+    use std::path::Path;
+    use std::process::Command;
+    use std::str::from_utf8;
+
+    fn set_env() {
+        let path_string = format!("{}/tests/gschema.compile", env!("CARGO_MANIFEST_DIR"));
+        let gschema_path = Path::new(&path_string);
+
+        let output = Command::new("glib-compile-schemas")
+            .args(&[
+                gschema_path.to_str().unwrap(),
+                "--targetdir",
+                env!("OUT_DIR"),
+            ])
+            .output()
+            .unwrap();
+
+        if !output.status.success() {
+            println!("Failed to generate GSchema!");
+            println!(
+                "glib-compile-schemas stdout: {}",
+                from_utf8(&output.stdout).unwrap()
+            );
+            println!(
+                "glib-compile-schemas stderr: {}",
+                from_utf8(&output.stderr).unwrap()
+            );
+            panic!("Can't test without GSchemas!");
+        }
+
+        set_var("GSETTINGS_SCHEMA_DIR", env!("OUT_DIR"));
+        set_var("GSETTINGS_BACKEND", "memory");
+    }
+
+    #[test]
+    fn string_get() {
+        set_env();
+        let settings = Settings::new("com.github.gtk-rs.test");
+        assert_eq!(settings.get::<String>("test-string").as_str(), "Good");
+    }
+
+    #[test]
+    fn bool_set_get() {
+        set_env();
+        let settings = Settings::new("com.github.gtk-rs.test");
+        settings.set("test-bool", &false).unwrap();
+        assert!(!settings.get::<bool>("test-bool"));
+    }
+
+    #[test]
+    #[should_panic]
+    fn wrong_type() {
+        set_env();
+        let settings = Settings::new("com.github.gtk-rs.test");
+        settings.get::<u8>("test-string");
+    }
+}

tests/com.github.gtk-rs.test.gschema.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<schemalist>
+
+    <schema path="/com/github/gtk-rs/" id="com.github.gtk-rs.test">
+
+        <key name="test-string" type="s">
+            <default>"Good"</default>
+        </key>
+
+        <key name="test-bool" type="b">
+            <default>true</default>
+        </key>
+
+    </schema>
+
+</schemalist>