Merge pull request #217 from dtolnay/macro

A toml macro

1 files changed, 495 insertions, 0 deletions

diff --git a/test-suite/tests/parser.rs b/test-suite/tests/parser.rs
new file mode 100644
index 0000000..2282416
--- /dev/null
+++ b/test-suite/tests/parser.rs
@@ -0,0 +1,495 @@
+extern crate toml;
+
+use toml::Value;
+
+macro_rules! bad {
+    ($s:expr, $msg:expr) => ({
+        match $s.parse::<Value>() {
+            Ok(s) => panic!("successfully parsed as {}", s),
+            Err(e) => {
+                let e = e.to_string();
+                assert!(e.contains($msg), "error: {}", e);
+            }
+        }
+    })
+}
+
+#[test]
+fn crlf() {
+    "\
+[project]\r\n\
+\r\n\
+name = \"splay\"\r\n\
+version = \"0.1.0\"\r\n\
+authors = [\"alex@crichton.co\"]\r\n\
+\r\n\
+[[lib]]\r\n\
+\r\n\
+path = \"lib.rs\"\r\n\
+name = \"splay\"\r\n\
+description = \"\"\"\
+A Rust implementation of a TAR file reader and writer. This library does not\r\n\
+currently handle compression, but it is abstract over all I/O readers and\r\n\
+writers. Additionally, great lengths are taken to ensure that the entire\r\n\
+contents are never required to be entirely resident in memory all at once.\r\n\
+\"\"\"\
+".parse::<Value>().unwrap();
+}
+
+#[test]
+fn fun_with_strings() {
+    let table = r#"
+bar = "\U00000000"
+key1 = "One\nTwo"
+key2 = """One\nTwo"""
+key3 = """
+One
+Two"""
+
+key4 = "The quick brown fox jumps over the lazy dog."
+key5 = """
+The quick brown \
+
+
+fox jumps over \
+the lazy dog."""
+key6 = """\
+   The quick brown \
+   fox jumps over \
+   the lazy dog.\
+   """
+# What you see is what you get.
+winpath  = 'C:\Users\nodejs\templates'
+winpath2 = '\\ServerX\admin$\system32\'
+quoted   = 'Tom "Dubs" Preston-Werner'
+regex    = '<\i\c*\s*>'
+
+regex2 = '''I [dw]on't need \d{2} apples'''
+lines  = '''
+The first newline is
+trimmed in raw strings.
+All other whitespace
+is preserved.
+'''
+"#.parse::<Value>().unwrap();
+    assert_eq!(table["bar"].as_str(), Some("\0"));
+    assert_eq!(table["key1"].as_str(), Some("One\nTwo"));
+    assert_eq!(table["key2"].as_str(), Some("One\nTwo"));
+    assert_eq!(table["key3"].as_str(), Some("One\nTwo"));
+
+    let msg = "The quick brown fox jumps over the lazy dog.";
+    assert_eq!(table["key4"].as_str(), Some(msg));
+    assert_eq!(table["key5"].as_str(), Some(msg));
+    assert_eq!(table["key6"].as_str(), Some(msg));
+
+    assert_eq!(table["winpath"].as_str(), Some(r"C:\Users\nodejs\templates"));
+    assert_eq!(table["winpath2"].as_str(), Some(r"\\ServerX\admin$\system32\"));
+    assert_eq!(table["quoted"].as_str(), Some(r#"Tom "Dubs" Preston-Werner"#));
+    assert_eq!(table["regex"].as_str(), Some(r"<\i\c*\s*>"));
+    assert_eq!(table["regex2"].as_str(), Some(r"I [dw]on't need \d{2} apples"));
+    assert_eq!(table["lines"].as_str(),
+               Some("The first newline is\n\
+                     trimmed in raw strings.\n\
+                        All other whitespace\n\
+                        is preserved.\n"));
+}
+
+#[test]
+fn tables_in_arrays() {
+    let table = r#"
+[[foo]]
+#…
+[foo.bar]
+#…
+
+[[foo]] # ...
+#…
+[foo.bar]
+#...
+"#.parse::<Value>().unwrap();
+    table["foo"][0]["bar"].as_table().unwrap();
+    table["foo"][1]["bar"].as_table().unwrap();
+}
+
+#[test]
+fn empty_table() {
+    let table = r#"
+[foo]"#.parse::<Value>().unwrap();
+    table["foo"].as_table().unwrap();
+}
+
+#[test]
+fn fruit() {
+    let table = r#"
+[[fruit]]
+name = "apple"
+
+[fruit.physical]
+color = "red"
+shape = "round"
+
+[[fruit.variety]]
+name = "red delicious"
+
+[[fruit.variety]]
+name = "granny smith"
+
+[[fruit]]
+name = "banana"
+
+[[fruit.variety]]
+name = "plantain"
+"#.parse::<Value>().unwrap();
+    assert_eq!(table["fruit"][0]["name"].as_str(), Some("apple"));
+    assert_eq!(table["fruit"][0]["physical"]["color"].as_str(), Some("red"));
+    assert_eq!(table["fruit"][0]["physical"]["shape"].as_str(), Some("round"));
+    assert_eq!(table["fruit"][0]["variety"][0]["name"].as_str(), Some("red delicious"));
+    assert_eq!(table["fruit"][0]["variety"][1]["name"].as_str(), Some("granny smith"));
+    assert_eq!(table["fruit"][1]["name"].as_str(), Some("banana"));
+    assert_eq!(table["fruit"][1]["variety"][0]["name"].as_str(), Some("plantain"));
+}
+
+#[test]
+fn stray_cr() {
+    "\r".parse::<Value>().unwrap_err();
+    "a = [ \r ]".parse::<Value>().unwrap_err();
+    "a = \"\"\"\r\"\"\"".parse::<Value>().unwrap_err();
+    "a = \"\"\"\\  \r  \"\"\"".parse::<Value>().unwrap_err();
+    "a = '''\r'''".parse::<Value>().unwrap_err();
+    "a = '\r'".parse::<Value>().unwrap_err();
+    "a = \"\r\"".parse::<Value>().unwrap_err();
+}
+
+#[test]
+fn blank_literal_string() {
+    let table = "foo = ''".parse::<Value>().unwrap();
+    assert_eq!(table["foo"].as_str(), Some(""));
+}
+
+#[test]
+fn many_blank() {
+    let table = "foo = \"\"\"\n\n\n\"\"\"".parse::<Value>().unwrap();
+    assert_eq!(table["foo"].as_str(), Some("\n\n"));
+}
+
+#[test]
+fn literal_eats_crlf() {
+    let table = "
+        foo = \"\"\"\\\r\n\"\"\"
+        bar = \"\"\"\\\r\n   \r\n   \r\n   a\"\"\"
+    ".parse::<Value>().unwrap();
+    assert_eq!(table["foo"].as_str(), Some(""));
+    assert_eq!(table["bar"].as_str(), Some("a"));
+}
+
+#[test]
+fn string_no_newline() {
+    "a = \"\n\"".parse::<Value>().unwrap_err();
+    "a = '\n'".parse::<Value>().unwrap_err();
+}
+
+#[test]
+fn bad_leading_zeros() {
+    "a = 00".parse::<Value>().unwrap_err();
+    "a = -00".parse::<Value>().unwrap_err();
+    "a = +00".parse::<Value>().unwrap_err();
+    "a = 00.0".parse::<Value>().unwrap_err();
+    "a = -00.0".parse::<Value>().unwrap_err();
+    "a = +00.0".parse::<Value>().unwrap_err();
+    "a = 9223372036854775808".parse::<Value>().unwrap_err();
+    "a = -9223372036854775809".parse::<Value>().unwrap_err();
+}
+
+#[test]
+fn bad_floats() {
+    "a = 0.".parse::<Value>().unwrap_err();
+    "a = 0.e".parse::<Value>().unwrap_err();
+    "a = 0.E".parse::<Value>().unwrap_err();
+    "a = 0.0E".parse::<Value>().unwrap_err();
+    "a = 0.0e".parse::<Value>().unwrap_err();
+    "a = 0.0e-".parse::<Value>().unwrap_err();
+    "a = 0.0e+".parse::<Value>().unwrap_err();
+    "a = 0.0e+00".parse::<Value>().unwrap_err();
+}
+
+#[test]
+fn floats() {
+    macro_rules! t {
+        ($actual:expr, $expected:expr) => ({
+            let f = format!("foo = {}", $actual);
+            println!("{}", f);
+            let a = f.parse::<Value>().unwrap();
+            assert_eq!(a["foo"].as_float().unwrap(), $expected);
+        })
+    }
+
+    t!("1.0", 1.0);
+    t!("1.0e0", 1.0);
+    t!("1.0e+0", 1.0);
+    t!("1.0e-0", 1.0);
+    t!("1.001e-0", 1.001);
+    t!("2e10", 2e10);
+    t!("2e+10", 2e10);
+    t!("2e-10", 2e-10);
+    t!("2_0.0", 20.0);
+    t!("2_0.0_0e1_0", 20.0e10);
+    t!("2_0.1_0e1_0", 20.1e10);
+}
+
+#[test]
+fn bare_key_names() {
+    let a = "
+        foo = 3
+        foo_3 = 3
+        foo_-2--3--r23f--4-f2-4 = 3
+        _ = 3
+        - = 3
+        8 = 8
+        \"a\" = 3
+        \"!\" = 3
+        \"a^b\" = 3
+        \"\\\"\" = 3
+        \"character encoding\" = \"value\"
+        'ʎǝʞ' = \"value\"
+    ".parse::<Value>().unwrap();
+    &a["foo"];
+    &a["-"];
+    &a["_"];
+    &a["8"];
+    &a["foo_3"];
+    &a["foo_-2--3--r23f--4-f2-4"];
+    &a["a"];
+    &a["!"];
+    &a["\""];
+    &a["character encoding"];
+    &a["ʎǝʞ"];
+}
+
+#[test]
+fn bad_keys() {
+    "key\n=3".parse::<Value>().unwrap_err();
+    "key=\n3".parse::<Value>().unwrap_err();
+    "key|=3".parse::<Value>().unwrap_err();
+    "\"\"=3".parse::<Value>().unwrap_err();
+    "=3".parse::<Value>().unwrap_err();
+    "\"\"|=3".parse::<Value>().unwrap_err();
+    "\"\n\"|=3".parse::<Value>().unwrap_err();
+    "\"\r\"|=3".parse::<Value>().unwrap_err();
+}
+
+#[test]
+fn bad_table_names() {
+    "[]".parse::<Value>().unwrap_err();
+    "[.]".parse::<Value>().unwrap_err();
+    "[\"\".\"\"]".parse::<Value>().unwrap_err();
+    "[a.]".parse::<Value>().unwrap_err();
+    "[\"\"]".parse::<Value>().unwrap_err();
+    "[!]".parse::<Value>().unwrap_err();
+    "[\"\n\"]".parse::<Value>().unwrap_err();
+    "[a.b]\n[a.\"b\"]".parse::<Value>().unwrap_err();
+    "[']".parse::<Value>().unwrap_err();
+    "[''']".parse::<Value>().unwrap_err();
+    "['''''']".parse::<Value>().unwrap_err();
+    "['\n']".parse::<Value>().unwrap_err();
+    "['\r\n']".parse::<Value>().unwrap_err();
+}
+
+#[test]
+fn table_names() {
+    let a = "
+        [a.\"b\"]
+        [\"f f\"]
+        [\"f.f\"]
+        [\"\\\"\"]
+        ['a.a']
+        ['\"\"']
+    ".parse::<Value>().unwrap();
+    println!("{:?}", a);
+    &a["a"]["b"];
+    &a["f f"];
+    &a["f.f"];
+    &a["\""];
+    &a["\"\""];
+}
+
+#[test]
+fn invalid_bare_numeral() {
+    "4".parse::<Value>().unwrap_err();
+}
+
+#[test]
+fn inline_tables() {
+    "a = {}".parse::<Value>().unwrap();
+    "a = {b=1}".parse::<Value>().unwrap();
+    "a = {   b   =   1    }".parse::<Value>().unwrap();
+    "a = {a=1,b=2}".parse::<Value>().unwrap();
+    "a = {a=1,b=2,c={}}".parse::<Value>().unwrap();
+    "a = {a=1,}".parse::<Value>().unwrap_err();
+    "a = {,}".parse::<Value>().unwrap_err();
+    "a = {a=1,a=1}".parse::<Value>().unwrap_err();
+    "a = {\n}".parse::<Value>().unwrap_err();
+    "a = {".parse::<Value>().unwrap_err();
+    "a = {a=[\n]}".parse::<Value>().unwrap();
+    "a = {\"a\"=[\n]}".parse::<Value>().unwrap();
+    "a = [\n{},\n{},\n]".parse::<Value>().unwrap();
+}
+
+#[test]
+fn number_underscores() {
+    macro_rules! t {
+        ($actual:expr, $expected:expr) => ({
+            let f = format!("foo = {}", $actual);
+            let table = f.parse::<Value>().unwrap();
+            assert_eq!(table["foo"].as_integer().unwrap(), $expected);
+        })
+    }
+
+    t!("1_0", 10);
+    t!("1_0_0", 100);
+    t!("1_000", 1000);
+    t!("+1_000", 1000);
+    t!("-1_000", -1000);
+}
+
+#[test]
+fn bad_underscores() {
+    bad!("foo = 0_", "invalid number");
+    bad!("foo = 0__0", "invalid number");
+    bad!("foo = __0", "invalid number");
+    bad!("foo = 1_0_", "invalid number");
+}
+
+#[test]
+fn bad_unicode_codepoint() {
+    bad!("foo = \"\\uD800\"", "invalid escape value");
+}
+
+#[test]
+fn bad_strings() {
+    bad!("foo = \"\\uxx\"", "invalid hex escape");
+    bad!("foo = \"\\u\"", "invalid hex escape");
+    bad!("foo = \"\\", "unterminated");
+    bad!("foo = '", "unterminated");
+}
+
+#[test]
+fn empty_string() {
+    assert_eq!("foo = \"\"".parse::<Value>()
+                           .unwrap()["foo"]
+                           .as_str()
+                           .unwrap(),
+               "");
+}
+
+#[test]
+fn booleans() {
+    let table = "foo = true".parse::<Value>().unwrap();
+    assert_eq!(table["foo"].as_bool(), Some(true));
+
+    let table = "foo = false".parse::<Value>().unwrap();
+    assert_eq!(table["foo"].as_bool(), Some(false));
+
+    assert!("foo = true2".parse::<Value>().is_err());
+    assert!("foo = false2".parse::<Value>().is_err());
+    assert!("foo = t1".parse::<Value>().is_err());
+    assert!("foo = f2".parse::<Value>().is_err());
+}
+
+#[test]
+fn bad_nesting() {
+    bad!("
+        a = [2]
+        [[a]]
+        b = 5
+    ", "duplicate key: `a`");
+    bad!("
+        a = 1
+        [a.b]
+    ", "duplicate key: `a`");
+    bad!("
+        a = []
+        [a.b]
+    ", "duplicate key: `a`");
+    bad!("
+        a = []
+        [[a.b]]
+    ", "duplicate key: `a`");
+    bad!("
+        [a]
+        b = { c = 2, d = {} }
+        [a.b]
+        c = 2
+    ", "duplicate key: `b`");
+}
+
+#[test]
+fn bad_table_redefine() {
+    bad!("
+        [a]
+        foo=\"bar\"
+        [a.b]
+        foo=\"bar\"
+        [a]
+    ", "redefinition of table `a`");
+    bad!("
+        [a]
+        foo=\"bar\"
+        b = { foo = \"bar\" }
+        [a]
+    ", "redefinition of table `a`");
+    bad!("
+        [a]
+        b = {}
+        [a.b]
+    ", "duplicate key: `b`");
+
+    bad!("
+        [a]
+        b = {}
+        [a]
+    ", "redefinition of table `a`");
+}
+
+#[test]
+fn datetimes() {
+    macro_rules! t {
+        ($actual:expr) => ({
+            let f = format!("foo = {}", $actual);
+            let toml = f.parse::<Value>().expect(&format!("failed: {}", f));
+            assert_eq!(toml["foo"].as_datetime().unwrap().to_string(), $actual);
+        })
+    }
+
+    t!("2016-09-09T09:09:09Z");
+    t!("2016-09-09T09:09:09.1Z");
+    t!("2016-09-09T09:09:09.2+10:00");
+    t!("2016-09-09T09:09:09.123456789-02:00");
+    bad!("foo = 2016-09-09T09:09:09.Z", "failed to parse date");
+    bad!("foo = 2016-9-09T09:09:09Z", "failed to parse date");
+    bad!("foo = 2016-09-09T09:09:09+2:00", "failed to parse date");
+    bad!("foo = 2016-09-09T09:09:09-2:00", "failed to parse date");
+    bad!("foo = 2016-09-09T09:09:09Z-2:00", "failed to parse date");
+}
+
+#[test]
+fn require_newline_after_value() {
+    bad!("0=0r=false", "invalid number at line 1");
+    bad!(r#"
+0=""o=""m=""r=""00="0"q="""0"""e="""0"""
+"#, "expected newline");
+    bad!(r#"
+[[0000l0]]
+0="0"[[0000l0]]
+0="0"[[0000l0]]
+0="0"l="0"
+"#, "expected newline");
+    bad!(r#"
+0=[0]00=[0,0,0]t=["0","0","0"]s=[1000-00-00T00:00:00Z,2000-00-00T00:00:00Z]
+"#, "expected newline");
+    bad!(r#"
+0=0r0=0r=false
+"#, "invalid number at line 2");
+    bad!(r#"
+0=0r0=0r=falsefal=false
+"#, "invalid number at line 2");
+}