Flag when validation has validated for the first time.

src/Validator.js

@@ -9,6 +9,7 @@ class Validator {
 
     this._validator = validate
     this._errors = Object.create(null)
+    this.hasValidated = false;
   }
 
 
@@ -34,6 +35,10 @@ class Validator {
     this._removeError(name)
 
     return Promise.all(fields)
+      .then(fields => {
+        this.hasValidated = true
+        return fields
+      })
   }
 
   _validateField(name, context){
@@ -58,4 +63,4 @@ class Validator {
   }
 }
 
-module.exports = Validator
+module.exports = Validator

test/validator.js

@@ -18,7 +18,7 @@ describe('validator', function(){
         spy.should.have.been.calledWithExactly('field', context)
       })
   })
-  
+
   it('should use passed in validation function', () => {
     var spy
       , context = {}
@@ -63,12 +63,21 @@ describe('validator', function(){
     return validator.validate('fieldA').should.be.fulfilled
       .then(() => {
         validator.errors().should.have.key('fieldA')
-        
+
         return validator.validate('fieldA').should.be.fulfilled
           .then(() => {
             validator.errors().should.not.have.key('fieldA')
           })
       })
   })
-})
 
+  it('should track initial validation state', () => {
+    var validator = new Validator( field => 'invalid')
+    validator.hasValidated.should.equal(false)
+
+    return validator.validate('fieldA').should.be.fulfilled
+      .then(() => {
+        validator.hasValidated.should.equal(true)
+      })
+  })
+})