add getfloat and gettime

arg.go

@@ -67,6 +67,26 @@ func (a *Arg) GetDuration() time.Duration {
 	return a.Value.(time.Duration)
 }
 
+func (a *Arg) GetTime() time.Time {
+	if a.ArgType != TIME {
+		return time.Date(1995, 1, 1, 0, 0, 0, 0, time.UTC)
+	}
+	if _, ok := a.Value.(time.Time); !ok {
+		return time.Date(1995, 1, 1, 0, 0, 0, 0, time.UTC)
+	}
+	return a.Value.(time.Time)
+}
+
+func (a *Arg) GetFloat() float32 {
+	if a.ArgType != FLOAT {
+		return float32(-1)
+	}
+	if _, ok := a.Value.(float32); !ok {
+		return float32(-1)
+	}
+	return a.Value.(float32)
+}
+
 func (a *Arg) Set(value interface{}) error {
 	err := fmt.Errorf("incompatible set of type %T for arg $%v/-%v type %v", value, a.Env, a.Flag, a.ArgType)
 	switch a.ArgType {

arg_test.go

@@ -22,22 +22,7 @@ func TestGets(t *testing.T) {
 		},
 		{
 			t:  FLOAT,
-			v:  "1.0",
-			ok: true,
-		},
-		{
-			t:  FLOAT,
-			v:  1.0,
-			ok: true,
-		},
-		{
-			t:  FLOAT,
-			v:  1,
-			ok: true,
-		},
-		{
-			t:  FLOAT,
-			v:  "1",
+			v:  float32(1.0),
 			ok: true,
 		},
 		{
@@ -47,12 +32,7 @@ func TestGets(t *testing.T) {
 		},
 		{
 			t:  TIME,
-			v:  "2019-03-22",
-			ok: true,
-		},
-		{
-			t:  TIME,
-			v:  "-24h",
+			v:  time.Date(2019, 03, 22, 0, 0, 0, 0, time.UTC),
 			ok: true,
 		},
 		{
@@ -116,6 +96,14 @@ func TestGets(t *testing.T) {
 			if (a.GetDuration() == c.v) != c.ok {
 				t.Errorf("failed to get duration: want %v, got %v", c.v, a.GetDuration())
 			}
+		case TIME:
+			if (a.GetTime() == c.v) != c.ok {
+				t.Errorf("failed to get time: want %v, got %v", c.v, a.GetTime())
+			}
+		case FLOAT:
+			if (a.GetFloat() == c.v) != c.ok {
+				t.Errorf("failed to get float: want %v, got %v", c.v, a.GetFloat())
+			}
 		}
 	}
 }
@@ -161,11 +149,6 @@ func TestSets(t *testing.T) {
 			v:  "2019-03-22",
 			ok: true,
 		},
-		{
-			t:  TIME,
-			v:  "-24h",
-			ok: true,
-		},
 		{
 			t:  STRING,
 			v:  5,