fix ^0.x and ^0.0.x

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "semverator"
-version = "0.3.0"
+version = "0.3.1"
 edition = "2021"
 license = "Apache-2.0"
 readme = "README.md"

src/range/parse.rs

@@ -52,8 +52,15 @@ impl<'a> Constraint<'a> {
             return match cap.get(1).context("invalid character")?.as_str() {
                 "^" => {
                     let v1 = Semver::parse(cap.get(2).context("invalid description")?.as_str())?;
-                    let v2 = Semver::parse(&format!("{}", v1.major + 1))?;
-                    Ok(Constraint::Contiguous(v1, v2))
+                    if v1.major > 0 {
+                        let v2 = Semver::parse(&format!("{}", v1.major + 1))?;
+                        return Ok(Constraint::Contiguous(v1, v2));
+                    } else if v1.minor > 0 {
+                        let v2 = Semver::parse(&format!("{}.{}", v1.major, v1.minor + 1))?;
+                        return Ok(Constraint::Contiguous(v1, v2));
+                    } else {
+                        return Ok(Constraint::Single(v1));
+                    }
                 }
                 "~" => {
                     let v1 = Semver::parse(cap.get(2).context("invalid description")?.as_str())?;

src/tests/range.rs

@@ -74,6 +74,22 @@ fn test_satisfies() -> Result<()> {
     assert!(!rd.satisfies(&sa));
     assert!(rd.satisfies(&sb));
 
+    let re = Range::parse("^0.1.0")?;
+
+    let se = Semver::parse("0.1.1")?;
+    let sf = Semver::parse("0.2.1")?;
+
+    assert!(re.satisfies(&se));
+    assert!(!re.satisfies(&sf));
+
+    let rg = Range::parse("^0.0.5")?;
+
+    let sg = Semver::parse("0.0.5")?;
+    let sh = Semver::parse("0.0.6")?;
+
+    assert!(rg.satisfies(&sg));
+    assert!(!rg.satisfies(&sh));
+
     Ok(())
 }