Merge pull request #227 from matthiasbeyer/test-weird-keys

Add tests for weird keys

Author: matthiasbeyer

tests/weird_keys.rs

@@ -0,0 +1,115 @@
+// Please note: This file is named "weird" keys because these things are normally not keys, not
+// because your software is weird if it expects these keys in the config file.
+//
+// Please don't be offended!
+//
+
+extern crate config;
+
+#[macro_use]
+extern crate serde_derive;
+extern crate serde;
+
+use config::*;
+
+/// Helper fn to test the different deserializations
+fn test_config_as<'a, T>(config: &str, format: FileFormat) -> T
+where
+    T: serde::Deserialize<'a> + std::fmt::Debug,
+{
+    let cfg = config::Config::builder()
+        .add_source(File::from_str(config, format))
+        .build();
+
+    assert!(cfg.is_ok(), "Config could not be built: {:?}", cfg);
+    let cfg = cfg.unwrap().try_into();
+
+    assert!(cfg.is_ok(), "Config could not be transformed: {:?}", cfg);
+    let cfg: T = cfg.unwrap();
+    cfg
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+struct SettingsColon {
+    #[serde(rename = "foo:foo")]
+    foo: u8,
+
+    bar: u8,
+}
+
+#[test]
+fn test_colon_key_toml() {
+    let config = r#"
+        "foo:foo" = 8
+        bar = 12
+    "#;
+
+    let cfg = test_config_as::<SettingsColon>(config, FileFormat::Toml);
+    assert_eq!(cfg.foo, 8);
+    assert_eq!(cfg.bar, 12);
+}
+
+#[test]
+fn test_colon_key_json() {
+    let config = r#" {"foo:foo": 8, "bar": 12 } "#;
+
+    let cfg = test_config_as::<SettingsColon>(config, FileFormat::Json);
+    assert_eq!(cfg.foo, 8);
+    assert_eq!(cfg.bar, 12);
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+struct SettingsSlash {
+    #[serde(rename = "foo/foo")]
+    foo: u8,
+    bar: u8,
+}
+
+#[test]
+fn test_slash_key_toml() {
+    let config = r#"
+        "foo/foo" = 8
+        bar = 12
+    "#;
+
+    let cfg = test_config_as::<SettingsSlash>(config, FileFormat::Toml);
+    assert_eq!(cfg.foo, 8);
+    assert_eq!(cfg.bar, 12);
+}
+
+#[test]
+fn test_slash_key_json() {
+    let config = r#" {"foo/foo": 8, "bar": 12 } "#;
+
+    let cfg = test_config_as::<SettingsSlash>(config, FileFormat::Json);
+    assert_eq!(cfg.foo, 8);
+    assert_eq!(cfg.bar, 12);
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+struct SettingsDoubleBackslash {
+    #[serde(rename = "foo\\foo")]
+    foo: u8,
+    bar: u8,
+}
+
+#[test]
+fn test_doublebackslash_key_toml() {
+    let config = r#"
+        "foo\\foo" = 8
+        bar = 12
+    "#;
+
+    let cfg = test_config_as::<SettingsDoubleBackslash>(config, FileFormat::Toml);
+    assert_eq!(cfg.foo, 8);
+    assert_eq!(cfg.bar, 12);
+}
+
+#[test]
+fn test_doublebackslash_key_json() {
+    let config = r#" {"foo\\foo": 8, "bar": 12 } "#;
+
+    let cfg = test_config_as::<SettingsDoubleBackslash>(config, FileFormat::Json);
+    assert_eq!(cfg.foo, 8);
+    assert_eq!(cfg.bar, 12);
+}