First pass for windows support.

src/test/groovy/net/rubygrapefruit/platform/PosixFileTest.groovy

@@ -1,52 +1,55 @@
-package net.rubygrapefruit.platform
-
-import spock.lang.Specification
-import org.junit.Rule
-import org.junit.rules.TemporaryFolder
-
-class PosixFileTest extends Specification {
-    @Rule TemporaryFolder tmpDir
-    final PosixFile file = Native.get(PosixFile.class)
-
-    def "can set mode on a file"() {
-        def testFile = tmpDir.newFile("test.txt")
-
-        when:
-        file.setMode(testFile, 0740)
-
-        then:
-        file.getMode(testFile) == 0740
-    }
-
-    def "can set mode on a file with unicode in its name"() {
-        def testFile = tmpDir.newFile("test\u03b1.txt")
-
-        when:
-        file.setMode(testFile, 0740)
-
-        then:
-        file.getMode(testFile) == 0740
-    }
-
-    def "throws exception on failure to set mode"() {
-        def file = new File(tmpDir.root, "unknown")
-
-        when:
-        this.file.setMode(file, 0660)
-
-        then:
-        NativeException e = thrown()
-        e.message == "Could not set UNIX mode on $file: could not chmod file (errno 2)"
-    }
-
-    def "throws exception on failure to get mode"() {
-        def file = new File(tmpDir.root, "unknown")
-
-        when:
-        this.file.getMode(file)
-
-        then:
-        NativeException e = thrown()
-        e.message == "Could not get UNIX mode on $file: could not stat file (errno 2)"
-    }
-}
+package net.rubygrapefruit.platform
+
+import spock.lang.Specification
+import org.junit.Rule
+import org.junit.rules.TemporaryFolder
+import spock.lang.IgnoreIf
+import net.rubygrapefruit.platform.internal.Platform
+
+@IgnoreIf({Platform.current().windows})
+class PosixFileTest extends Specification {
+    @Rule TemporaryFolder tmpDir
+    final PosixFile file = Native.get(PosixFile.class)
+
+    def "can set mode on a file"() {
+        def testFile = tmpDir.newFile("test.txt")
+
+        when:
+        file.setMode(testFile, 0740)
+
+        then:
+        file.getMode(testFile) == 0740
+    }
+
+    def "can set mode on a file with unicode in its name"() {
+        def testFile = tmpDir.newFile("test\u03b1.txt")
+
+        when:
+        file.setMode(testFile, 0740)
+
+        then:
+        file.getMode(testFile) == 0740
+    }
+
+    def "throws exception on failure to set mode"() {
+        def file = new File(tmpDir.root, "unknown")
+
+        when:
+        this.file.setMode(file, 0660)
+
+        then:
+        NativeException e = thrown()
+        e.message == "Could not set UNIX mode on $file: could not chmod file (errno 2)"
+    }
+
+    def "throws exception on failure to get mode"() {
+        def file = new File(tmpDir.root, "unknown")
+
+        when:
+        this.file.getMode(file)
+
+        then:
+        NativeException e = thrown()
+        e.message == "Could not get UNIX mode on $file: could not stat file (errno 2)"
+    }
+}

src/test/groovy/net/rubygrapefruit/platform/ProcessTest.groovy

@@ -1,15 +1,15 @@
-package net.rubygrapefruit.platform
-
-import org.junit.Rule
-import org.junit.rules.TemporaryFolder
-import spock.lang.Specification
-
-class ProcessTest extends Specification {
-    @Rule TemporaryFolder tmpDir
-    final Process process = Native.get(Process.class)
-
-    def "can get PID"() {
-        expect:
-        process.getPid() != 0
-    }
-}
+package net.rubygrapefruit.platform
+
+import org.junit.Rule
+import org.junit.rules.TemporaryFolder
+import spock.lang.Specification
+
+class ProcessTest extends Specification {
+    @Rule TemporaryFolder tmpDir
+    final Process process = Native.get(Process.class)
+
+    def "can get PID"() {
+        expect:
+        process.getProcessId() != 0
+    }
+}

src/test/groovy/net/rubygrapefruit/platform/TerminalTest.groovy

@@ -1,25 +1,25 @@
-package net.rubygrapefruit.platform
-
-import org.junit.Rule
-import org.junit.rules.TemporaryFolder
-import spock.lang.Specification
-
-class TerminalTest extends Specification {
-    @Rule TemporaryFolder tmpDir
-    final TerminalAccess terminal = Native.get(TerminalAccess.class)
-
-    def "can check if attached to terminal"() {
-        expect:
-        !terminal.isTerminal(TerminalAccess.Output.Stdout);
-        !terminal.isTerminal(TerminalAccess.Output.Stderr);
-    }
-
-    def "cannot determine terminal size from a test"() {
-        when:
-        terminal.getTerminal(TerminalAccess.Output.Stdout)
-
-        then:
-        NativeException e = thrown()
-        e.message == 'Could not open terminal: not a terminal'
-    }
-}
+package net.rubygrapefruit.platform
+
+import org.junit.Rule
+import org.junit.rules.TemporaryFolder
+import spock.lang.Specification
+
+class TerminalTest extends Specification {
+    @Rule TemporaryFolder tmpDir
+    final TerminalAccess terminal = Native.get(TerminalAccess.class)
+
+    def "can check if attached to terminal"() {
+        expect:
+        !terminal.isTerminal(TerminalAccess.Output.Stdout);
+        !terminal.isTerminal(TerminalAccess.Output.Stderr);
+    }
+
+    def "cannot access terminal from a test"() {
+        when:
+        terminal.getTerminal(TerminalAccess.Output.Stdout)
+
+        then:
+        NativeException e = thrown()
+        e.message == 'Could not open terminal: not a terminal'
+    }
+}