Fix path assertions so the unit tests also work on Windows

Author: lion7

src/test/java/io/swagger/codegen/v3/generators/php/PhpClientCodegenTest.java

@@ -4,6 +4,8 @@
 import org.testng.Assert;
 import org.testng.annotations.Test;
 
+import java.io.File;
+
 public class PhpClientCodegenTest {
     @Test
     public void testInitialValues() throws Exception {
@@ -20,8 +22,8 @@ public void testInitialValues() throws Exception {
         Assert.assertEquals(codegen.additionalProperties().get(CodegenConstants.SORT_PARAMS_BY_REQUIRED_FLAG), Boolean.TRUE);
         Assert.assertEquals(codegen.getHideGenerationTimestamp(), Boolean.TRUE);
         Assert.assertEquals(codegen.additionalProperties().get(CodegenConstants.HIDE_GENERATION_TIMESTAMP), Boolean.TRUE);
-        Assert.assertEquals(codegen.templateDir(), "v2/php");
-        Assert.assertEquals(codegen.embeddedTemplateDir(), "v2/php");
+        Assert.assertEquals(codegen.templateDir(), "v2" + File.separator + "php");
+        Assert.assertEquals(codegen.embeddedTemplateDir(), "v2" + File.separator + "php");
     }
 
     @Test
@@ -74,7 +76,7 @@ public void testPutTemplateDirProperty() throws Exception {
         codegen.processOpts();
 
         Assert.assertEquals(codegen.templateDir(), "/absolute/path");
-        Assert.assertEquals(codegen.embeddedTemplateDir(), "v2/php");
+        Assert.assertEquals(codegen.embeddedTemplateDir(), "v2" + File.separator + "php");
     }
 
 
@@ -86,6 +88,6 @@ public void testPutTemplateDirPropertyWithTemplateVersion() throws Exception {
         codegen.processOpts();
 
         Assert.assertEquals(codegen.templateDir(), "/absolute/path");
-        Assert.assertEquals(codegen.embeddedTemplateDir(), "v3/php");
+        Assert.assertEquals(codegen.embeddedTemplateDir(), "v3" + File.separator + "php");
     }
 }