Add test for configuration file

Cargo.lock

@@ -665,6 +665,7 @@ version = "0.1.3"
 dependencies = [
  "pretty_assertions 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "sailfish 0.1.3",
+ "sailfish-compiler 0.1.3",
  "sailfish-macros 0.1.3",
  "trybuild 1.0.28 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

integration-tests/Cargo.toml

@@ -8,6 +8,7 @@ publish = false
 [dependencies]
 sailfish = { path = "../sailfish" }
 sailfish-macros = { path = "../sailfish-macros" }
+sailfish-compiler = { path = "../sailfish-compiler" }
 
 [dev-dependencies]
 trybuild = "1.0.28"

integration-tests/config/sailfish.yml

@@ -0,0 +1,6 @@
+template_dir: "../templates"
+escape: true
+delimiter: "%"
+
+optimization:
+    rm_whitespace: false

integration-tests/tests/config.rs

@@ -0,0 +1,13 @@
+use sailfish_compiler::Config;
+use std::path::Path;
+
+#[test]
+fn read_config() {
+    let path = Path::new(env!("CARGO_MANIFEST_DIR")).join("config");
+    let config = Config::search_file_and_read(&*path).unwrap();
+
+    assert_eq!(config.delimiter, '%');
+    assert_eq!(config.escape, true);
+    assert_eq!(config.rm_whitespace, false);
+    assert_eq!(config.template_dirs.len(), 1);
+}