add tests

tests/pretty.rs

@@ -3,12 +3,14 @@ extern crate serde;
 
 use serde::ser::Serialize;
 
-const EXAMPLE: &'static str = "\
+const PRETTY_STD: &'static str = "\
 [example]
 array = [
     \"item 1\",
     \"item 2\",
 ]
+empty = []
+oneline = \"this has no newlines.\"
 text = '''
 this is the first line
 this is the second line
@@ -16,11 +18,116 @@ this is the second line
 ";
 
 #[test]
-fn test_pretty() {
-    let value: toml::Value = toml::from_str(EXAMPLE).unwrap();
+fn test_pretty_std() {
+    let toml = PRETTY_STD;
+    let value: toml::Value = toml::from_str(toml).unwrap();
     let mut result = String::with_capacity(128);
     value.serialize(&mut toml::Serializer::pretty(&mut result)).unwrap();
-    println!("example:\n{}", EXAMPLE);
-    println!("result:\n{}", result);
-    assert_eq!(EXAMPLE, &result);
+    println!("EXPECTED:\n{}", toml);
+    println!("\nRESULT:\n{}", result);
+    assert_eq!(toml, &result);
+}
+
+
+const PRETTY_INDENT_2: &'static str = "\
+[example]
+array = [
+  \"item 1\",
+  \"item 2\",
+]
+empty = []
+oneline = \"this has no newlines.\"
+text = '''
+this is the first line
+this is the second line
+'''
+";
+
+#[test]
+fn test_pretty_indent_2() {
+    let toml = PRETTY_INDENT_2;
+    let value: toml::Value = toml::from_str(toml).unwrap();
+    let mut result = String::with_capacity(128);
+    {
+        let mut serializer = toml::Serializer::pretty(&mut result);
+        serializer.pretty_array_indent(2);
+        value.serialize(&mut serializer).unwrap();
+    }
+    assert_eq!(toml, &result);
+}
+
+const PRETTY_INDENT_2_OTHER: &'static str = "\
+[example]
+array = [
+  \"item 1\",
+  \"item 2\",
+]
+empty = []
+oneline = \"this has no newlines.\"
+text = \"\\nthis is the first line\\nthis is the second line\\n\"
+";
+
+
+#[test]
+/// Test pretty indent when gotten the other way
+fn test_pretty_indent_2_other() {
+    let toml = PRETTY_INDENT_2_OTHER;
+    let value: toml::Value = toml::from_str(toml).unwrap();
+    let mut result = String::with_capacity(128);
+    {
+        let mut serializer = toml::Serializer::new(&mut result);
+        serializer.pretty_array_indent(2);
+        value.serialize(&mut serializer).unwrap();
+    }
+    assert_eq!(toml, &result);
+}
+
+
+const PRETTY_ARRAY_NO_COMMA: &'static str = "\
+[example]
+array = [
+    \"item 1\",
+    \"item 2\"
+]
+empty = []
+oneline = \"this has no newlines.\"
+text = \"\\nthis is the first line\\nthis is the second line\\n\"
+";
+#[test]
+/// Test pretty indent when gotten the other way
+fn test_pretty_indent_array_no_comma() {
+    let toml = PRETTY_ARRAY_NO_COMMA;
+    let value: toml::Value = toml::from_str(toml).unwrap();
+    let mut result = String::with_capacity(128);
+    {
+        let mut serializer = toml::Serializer::new(&mut result);
+        serializer.pretty_array_trailing_comma(false);
+        value.serialize(&mut serializer).unwrap();
+    }
+    assert_eq!(toml, &result);
+}
+
+
+const PRETTY_NO_STRING: &'static str = "\
+[example]
+array = [
+    \"item 1\",
+    \"item 2\",
+]
+empty = []
+oneline = \"this has no newlines.\"
+text = \"\\nthis is the first line\\nthis is the second line\\n\"
+";
+#[test]
+/// Test pretty indent when gotten the other way
+fn test_pretty_no_string() {
+    let toml = PRETTY_NO_STRING;
+    let value: toml::Value = toml::from_str(toml).unwrap();
+    let mut result = String::with_capacity(128);
+    {
+        let mut serializer = toml::Serializer::pretty(&mut result);
+        serializer.pretty_string(false);
+        value.serialize(&mut serializer).unwrap();
+    }
+    assert_eq!(toml, &result);
 }