Add tests for path-to-value extractor functionality
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4759076249
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1 changed files with 255 additions and 2 deletions
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@ -672,6 +672,8 @@ impl Entry {
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#[cfg(test)]
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mod test {
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use std::collections::BTreeMap;
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use super::EntryHeader;
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use super::Token;
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use toml::Value;
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@ -822,7 +824,258 @@ Hai";
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assert_eq!(TEST_ENTRY, string);
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}
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#[test]
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fn test_walk_header_simple() {
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let tokens = EntryHeader::tokenize("a").unwrap();
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assert!(tokens.len() == 1, "1 token was expected, {} were parsed", tokens.len());
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assert!(tokens.iter().next().unwrap() == &Token::Key(String::from("a")),
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"'a' token was expected, {:?} was parsed", tokens.iter().next());
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let mut header = BTreeMap::new();
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header.insert(String::from("a"), Value::Integer(1));
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let mut v_header = Value::Table(header);
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let res = EntryHeader::walk_header(&mut v_header, tokens);
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assert_eq!(&mut Value::Integer(1), res.unwrap());
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}
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#[test]
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fn test_walk_header_with_array() {
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let tokens = EntryHeader::tokenize("a.0").unwrap();
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assert!(tokens.len() == 2, "2 token was expected, {} were parsed", tokens.len());
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assert!(tokens.iter().next().unwrap() == &Token::Key(String::from("a")),
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"'a' token was expected, {:?} was parsed", tokens.iter().next());
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let mut header = BTreeMap::new();
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let ary = Value::Array(vec![Value::Integer(1)]);
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header.insert(String::from("a"), ary);
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let mut v_header = Value::Table(header);
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let res = EntryHeader::walk_header(&mut v_header, tokens);
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assert_eq!(&mut Value::Integer(1), res.unwrap());
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}
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#[test]
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fn test_walk_header_extract_array() {
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let tokens = EntryHeader::tokenize("a").unwrap();
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assert!(tokens.len() == 1, "1 token was expected, {} were parsed", tokens.len());
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assert!(tokens.iter().next().unwrap() == &Token::Key(String::from("a")),
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"'a' token was expected, {:?} was parsed", tokens.iter().next());
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let mut header = BTreeMap::new();
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let ary = Value::Array(vec![Value::Integer(1)]);
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header.insert(String::from("a"), ary);
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let mut v_header = Value::Table(header);
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let res = EntryHeader::walk_header(&mut v_header, tokens);
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assert_eq!(&mut Value::Array(vec![Value::Integer(1)]), res.unwrap());
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}
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/**
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* Creates a big testing header.
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*
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* JSON equivalent:
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*
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* ```json
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* {
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* "a": {
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* "array": [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 ]
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* },
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* "b": {
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* "array": [ "string1", "string2", "string3", "string4" ]
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* },
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* "c": {
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* "array": [ 1, "string2", 3, "string4" ]
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* },
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* "d": {
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* "array": [
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* {
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* "d1": 1
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* },
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* {
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* "d2": 2
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* },
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* {
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* "d3": 3
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* },
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* ],
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*
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* "something": "else",
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*
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* "and": {
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* "something": {
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* "totally": "different"
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* }
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* }
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* }
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* }
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* ```
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*
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* The sections "a", "b", "c", "d" are created in the respective helper functions
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* create_header_section_a, create_header_section_b, create_header_section_c and
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* create_header_section_d.
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*
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* These functions can also be used for testing.
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*
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*/
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fn create_header() -> Value {
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let a = create_header_section_a();
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let b = create_header_section_b();
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let c = create_header_section_c();
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let d = create_header_section_d();
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let mut header = BTreeMap::new();
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header.insert(String::from("a"), a);
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header.insert(String::from("b"), b);
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header.insert(String::from("c"), c);
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header.insert(String::from("d"), d);
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Value::Table(header)
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}
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fn create_header_section_a() -> Value {
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// 0..10 is exclusive 10
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let a_ary = Value::Array((0..10).map(|x| Value::Integer(x)).collect());
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let mut a_obj = BTreeMap::new();
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a_obj.insert(String::from("array"), a_ary);
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Value::Table(a_obj)
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}
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fn create_header_section_b() -> Value {
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let b_ary = Value::Array((0..9)
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.map(|x| Value::String(format!("string{}", x)))
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.collect());
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let mut b_obj = BTreeMap::new();
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b_obj.insert(String::from("array"), b_ary);
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Value::Table(b_obj)
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}
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fn create_header_section_c() -> Value {
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let c_ary = Value::Array(
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vec![
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Value::Integer(1),
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Value::String(String::from("string2")),
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Value::Integer(3),
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Value::String(String::from("string4"))
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]);
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let mut c_obj = BTreeMap::new();
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c_obj.insert(String::from("array"), c_ary);
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Value::Table(c_obj)
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}
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fn create_header_section_d() -> Value {
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let d_ary = Value::Array(
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vec![
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{
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let mut tab = BTreeMap::new();
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tab.insert(String::from("d1"), Value::Integer(1));
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tab
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},
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{
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let mut tab = BTreeMap::new();
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tab.insert(String::from("d2"), Value::Integer(2));
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tab
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},
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{
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let mut tab = BTreeMap::new();
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tab.insert(String::from("d3"), Value::Integer(3));
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tab
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},
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].into_iter().map(Value::Table).collect());
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let and_obj = Value::Table({
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let mut tab = BTreeMap::new();
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let something_tab = Value::Table({
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let mut tab = BTreeMap::new();
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tab.insert(String::from("totally"), Value::String(String::from("different")));
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tab
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});
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tab.insert(String::from("something"), something_tab);
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tab
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});
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let mut d_obj = BTreeMap::new();
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d_obj.insert(String::from("array"), d_ary);
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d_obj.insert(String::from("something"), Value::String(String::from("else")));
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d_obj.insert(String::from("and"), and_obj);
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Value::Table(d_obj)
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}
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#[test]
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fn test_walk_header_big_a() {
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test_walk_header_extract_section("a", &create_header_section_a());
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}
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#[test]
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fn test_walk_header_big_b() {
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test_walk_header_extract_section("b", &create_header_section_b());
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}
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#[test]
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fn test_walk_header_big_c() {
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test_walk_header_extract_section("c", &create_header_section_c());
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}
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#[test]
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fn test_walk_header_big_d() {
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test_walk_header_extract_section("d", &create_header_section_d());
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}
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fn test_walk_header_extract_section(secname: &str, expected: &Value) {
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let tokens = EntryHeader::tokenize(secname).unwrap();
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assert!(tokens.len() == 1, "1 token was expected, {} were parsed", tokens.len());
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assert!(tokens.iter().next().unwrap() == &Token::Key(String::from(secname)),
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"'{}' token was expected, {:?} was parsed", secname, tokens.iter().next());
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let mut header = create_header();
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let res = EntryHeader::walk_header(&mut header, tokens);
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assert_eq!(expected, res.unwrap());
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}
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#[test]
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fn test_walk_header_extract_numbers() {
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test_extract_number("a", 0, 0);
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test_extract_number("a", 1, 1);
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test_extract_number("a", 2, 2);
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test_extract_number("a", 3, 3);
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test_extract_number("a", 4, 4);
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test_extract_number("a", 5, 5);
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test_extract_number("a", 6, 6);
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test_extract_number("a", 7, 7);
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test_extract_number("a", 8, 8);
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test_extract_number("a", 9, 9);
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test_extract_number("c", 0, 1);
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test_extract_number("c", 2, 3);
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}
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fn test_extract_number(sec: &str, idx: usize, exp: i64) {
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let tokens = EntryHeader::tokenize(&format!("{}.array.{}", sec, idx)[..]).unwrap();
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assert!(tokens.len() == 3, "3 token was expected, {} were parsed", tokens.len());
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{
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let mut iter = tokens.iter();
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let tok = iter.next().unwrap();
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let exp = Token::Key(String::from(sec));
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assert!(tok == &exp, "'{}' token was expected, {:?} was parsed", sec, tok);
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let tok = iter.next().unwrap();
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let exp = Token::Key(String::from("array"));
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assert!(tok == &exp, "'array' token was expected, {:?} was parsed", tok);
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let tok = iter.next().unwrap();
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let exp = Token::Index(idx);
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assert!(tok == &exp, "'{}' token was expected, {:?} was parsed", idx, tok);
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}
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let mut header = create_header();
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let res = EntryHeader::walk_header(&mut header, tokens);
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assert_eq!(&mut Value::Integer(exp), res.unwrap());
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}
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}
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