Fix .* version constraints parsing to include nonstable versions

src/Composer/Package/Version/VersionParser.php

@@ -135,18 +135,30 @@ class VersionParser
         // match wildcard constraints
         if (preg_match('{^(\d+)(?:\.(\d+))?(?:\.(\d+))?\.\*$}', $constraint, $matches)) {
             if (isset($matches[3])) {
-                $lowVersion = $matches[1] . '.' . $matches[2] . '.' . $matches[3] . '.0';
                 $highVersion = $matches[1] . '.' . $matches[2] . '.' . $matches[3] . '.9999999';
+                if ($matches[3] === '0') {
+                    $lowVersion = $matches[1] . '.' . ($matches[2] - 1) . '.9999999.9999999';
+                } else {
+                    $lowVersion = $matches[1] . '.' . $matches[2] . '.' . ($matches[3] - 1). '.9999999';
+                }
             } elseif (isset($matches[2])) {
-                $lowVersion = $matches[1] . '.' . $matches[2] . '.0.0';
                 $highVersion = $matches[1] . '.' . $matches[2] . '.9999999.9999999';
+                if ($matches[2] === '0') {
+                    $lowVersion = ($matches[1] - 1) . '.9999999.9999999.9999999';
+                } else {
+                    $lowVersion = $matches[1] . '.' . ($matches[2] - 1) . '.9999999.9999999';
+                }
             } else {
-                $lowVersion = $matches[1] . '.0.0.0';
                 $highVersion = $matches[1] . '.9999999.9999999.9999999';
+                if ($matches[1] === '0') {
+                    return array(new VersionConstraint('<', $highVersion));
+                } else {
+                    $lowVersion = ($matches[1] - 1) . '.9999999.9999999.9999999';
+                }
             }
 
             return array(
-                new VersionConstraint('>=', $lowVersion),
+                new VersionConstraint('>', $lowVersion),
                 new VersionConstraint('<', $highVersion),
             );
         }

tests/Composer/Test/Package/Version/VersionParserTest.php

@@ -132,7 +132,11 @@ class VersionParserTest extends \PHPUnit_Framework_TestCase
     public function testParseConstraintsWildcard($input, $min, $max)
     {
         $parser = new VersionParser;
-        $expected = new MultiConstraint(array($min, $max));
+        if ($min) {
+            $expected = new MultiConstraint(array($min, $max));
+        } else {
+            $expected = $max;
+        }
 
         $this->assertSame((string) $expected, (string) $parser->parseConstraints($input));
     }
@@ -140,12 +144,13 @@ class VersionParserTest extends \PHPUnit_Framework_TestCase
     public function wildcardConstraints()
     {
         return array(
-            array('2.*',     new VersionConstraint('>=', '2.0.0.0'), new VersionConstraint('<', '2.9999999.9999999.9999999')),
-            array('20.*',    new VersionConstraint('>=', '20.0.0.0'), new VersionConstraint('<', '20.9999999.9999999.9999999')),
-            array('2.0.*',   new VersionConstraint('>=', '2.0.0.0'), new VersionConstraint('<', '2.0.9999999.9999999')),
-            array('2.2.*',   new VersionConstraint('>=', '2.2.0.0'), new VersionConstraint('<', '2.2.9999999.9999999')),
-            array('2.10.*',  new VersionConstraint('>=', '2.10.0.0'), new VersionConstraint('<', '2.10.9999999.9999999')),
-            array('2.1.3.*', new VersionConstraint('>=', '2.1.3.0'), new VersionConstraint('<', '2.1.3.9999999')),
+            array('2.*',     new VersionConstraint('>', '1.9999999.9999999.9999999'), new VersionConstraint('<', '2.9999999.9999999.9999999')),
+            array('20.*',    new VersionConstraint('>', '19.9999999.9999999.9999999'), new VersionConstraint('<', '20.9999999.9999999.9999999')),
+            array('2.0.*',   new VersionConstraint('>', '1.9999999.9999999.9999999'), new VersionConstraint('<', '2.0.9999999.9999999')),
+            array('2.2.*',   new VersionConstraint('>', '2.1.9999999.9999999'), new VersionConstraint('<', '2.2.9999999.9999999')),
+            array('2.10.*',  new VersionConstraint('>', '2.9.9999999.9999999'), new VersionConstraint('<', '2.10.9999999.9999999')),
+            array('2.1.3.*', new VersionConstraint('>', '2.1.2.9999999'), new VersionConstraint('<', '2.1.3.9999999')),
+            array('0.*',     null, new VersionConstraint('<', '0.9999999.9999999.9999999')),
         );
     }