Add validation for justify-content property

DEVSIX-5170

Author: Eugene Bochilo

styled-xml-parser/src/main/java/com/itextpdf/styledxmlparser/css/validate/CssDeclarationValidationMaster.java

@@ -185,6 +185,18 @@ public class CssDeclarationValidationMaster {
                                 CommonCssConstants.SELF_START, CommonCssConstants.SELF_END),
                         Arrays.asList(CommonCssConstants.SAFE, CommonCssConstants.UNSAFE)),
                 inheritInitialUnsetValidator));
+        DEFAULT_VALIDATORS.put(CommonCssConstants.JUSTIFY_CONTENT, new MultiTypeDeclarationValidator(
+                new CssEnumValidator(Arrays.asList(
+                        CommonCssConstants.SPACE_AROUND, CommonCssConstants.SPACE_BETWEEN,
+                        CommonCssConstants.SPACE_EVENLY, CommonCssConstants.STRETCH, CommonCssConstants.NORMAL,
+                        CommonCssConstants.LEFT, CommonCssConstants.RIGHT)),
+                new CssEnumValidator(Arrays.asList(
+                        CommonCssConstants.CENTER, CommonCssConstants.START, CommonCssConstants.FLEX_START,
+                        CommonCssConstants.SELF_START, CommonCssConstants.END, CommonCssConstants.FLEX_END,
+                        CommonCssConstants.SELF_END),
+                        Arrays.asList(CommonCssConstants.SAFE, CommonCssConstants.UNSAFE)),
+                inheritInitialUnsetValidator
+        ));
         DEFAULT_VALIDATORS.put(CommonCssConstants.JUSTIFY_ITEMS, new MultiTypeDeclarationValidator(
                 normalValidator,
                 new CssEnumValidator(Arrays.asList(CommonCssConstants.BASELINE),

styled-xml-parser/src/test/java/com/itextpdf/styledxmlparser/css/validate/CssDeclarationValidationMasterTest.java

@@ -329,4 +329,45 @@ public void wordWrapTest() {
                 new CssDeclaration(CommonCssConstants.WORD_BREAK, "norm")));
 
     }
+
+    @Test
+    public void justifyContentTest() {
+        Assert.assertTrue(CssDeclarationValidationMaster.checkDeclaration(
+                new CssDeclaration(CommonCssConstants.JUSTIFY_CONTENT, "inherit")));
+        Assert.assertTrue(CssDeclarationValidationMaster.checkDeclaration(
+                new CssDeclaration(CommonCssConstants.JUSTIFY_CONTENT, "right")));
+        Assert.assertTrue(CssDeclarationValidationMaster.checkDeclaration(
+                new CssDeclaration(CommonCssConstants.JUSTIFY_CONTENT, "normal")));
+        Assert.assertTrue(CssDeclarationValidationMaster.checkDeclaration(
+                new CssDeclaration(CommonCssConstants.JUSTIFY_CONTENT, "space-between")));
+        Assert.assertTrue(CssDeclarationValidationMaster.checkDeclaration(
+                new CssDeclaration(CommonCssConstants.JUSTIFY_CONTENT, "self-end")));
+        Assert.assertTrue(CssDeclarationValidationMaster.checkDeclaration(
+                new CssDeclaration(CommonCssConstants.JUSTIFY_CONTENT, "unsafe self-end")));
+        Assert.assertTrue(CssDeclarationValidationMaster.checkDeclaration(
+                new CssDeclaration(CommonCssConstants.JUSTIFY_CONTENT, "stretch")));
+        Assert.assertTrue(CssDeclarationValidationMaster.checkDeclaration(
+                new CssDeclaration(CommonCssConstants.JUSTIFY_CONTENT, "space-evenly")));
+        Assert.assertTrue(CssDeclarationValidationMaster.checkDeclaration(
+                new CssDeclaration(CommonCssConstants.JUSTIFY_CONTENT, "flex-start")));
+
+        Assert.assertFalse(CssDeclarationValidationMaster.checkDeclaration(
+                new CssDeclaration(CommonCssConstants.JUSTIFY_CONTENT, "baseline")));
+        Assert.assertFalse(CssDeclarationValidationMaster.checkDeclaration(
+                new CssDeclaration(CommonCssConstants.JUSTIFY_CONTENT, "safe right")));
+        Assert.assertFalse(CssDeclarationValidationMaster.checkDeclaration(
+                new CssDeclaration(CommonCssConstants.JUSTIFY_CONTENT, "unsafe normal")));
+        Assert.assertFalse(CssDeclarationValidationMaster.checkDeclaration(
+                new CssDeclaration(CommonCssConstants.JUSTIFY_CONTENT, "unsafe space-between")));
+        Assert.assertFalse(CssDeclarationValidationMaster.checkDeclaration(
+                new CssDeclaration(CommonCssConstants.JUSTIFY_CONTENT, "self-center")));
+        Assert.assertFalse(CssDeclarationValidationMaster.checkDeclaration(
+                new CssDeclaration(CommonCssConstants.JUSTIFY_CONTENT, "self-end unsafe")));
+        Assert.assertFalse(CssDeclarationValidationMaster.checkDeclaration(
+                new CssDeclaration(CommonCssConstants.JUSTIFY_CONTENT, "safe stretch")));
+        Assert.assertFalse(CssDeclarationValidationMaster.checkDeclaration(
+                new CssDeclaration(CommonCssConstants.JUSTIFY_CONTENT, "space_evenly")));
+        Assert.assertFalse(CssDeclarationValidationMaster.checkDeclaration(
+                new CssDeclaration(CommonCssConstants.JUSTIFY_CONTENT, "flex-start left")));
+    }
 }