Merge pull request #238 from grosser/grosser/lte

add >= and <=

version.go

@@ -381,11 +381,21 @@ func (v *Version) LessThan(o *Version) bool {
 	return v.Compare(o) < 0
 }
 
+// LessThanEqual tests if one version is less or equal than another one.
+func (v *Version) LessThanEqual(o *Version) bool {
+	return v.Compare(o) <= 0
+}
+
 // GreaterThan tests if one version is greater than another one.
 func (v *Version) GreaterThan(o *Version) bool {
 	return v.Compare(o) > 0
 }
 
+// GreaterThanEqual tests if one version is greater or equal than another one.
+func (v *Version) GreaterThanEqual(o *Version) bool {
+	return v.Compare(o) >= 0
+}
+
 // Equal tests if two versions are equal to each other.
 // Note, versions can be equal with different metadata since metadata
 // is not considered part of the comparable version.

version_test.go

@@ -303,6 +303,39 @@ func TestLessThan(t *testing.T) {
 	}
 }
 
+func TestLessThanEqual(t *testing.T) {
+	tests := []struct {
+		v1       string
+		v2       string
+		expected bool
+	}{
+		{"1.2.3", "1.5.1", true},
+		{"2.2.3", "1.5.1", false},
+		{"1.5.1", "1.5.1", true},
+	}
+
+	for _, tc := range tests {
+		v1, err := NewVersion(tc.v1)
+		if err != nil {
+			t.Errorf("Error parsing version: %s", err)
+		}
+
+		v2, err := NewVersion(tc.v2)
+		if err != nil {
+			t.Errorf("Error parsing version: %s", err)
+		}
+
+		a := v1.LessThanEqual(v2)
+		e := tc.expected
+		if a != e {
+			t.Errorf(
+				"Comparison of '%s' and '%s' failed. Expected '%t', got '%t'",
+				tc.v1, tc.v2, e, a,
+			)
+		}
+	}
+}
+
 func TestGreaterThan(t *testing.T) {
 	tests := []struct {
 		v1       string
@@ -341,6 +374,39 @@ func TestGreaterThan(t *testing.T) {
 	}
 }
 
+func TestGreaterThanEqual(t *testing.T) {
+	tests := []struct {
+		v1       string
+		v2       string
+		expected bool
+	}{
+		{"1.2.3", "1.5.1", false},
+		{"2.2.3", "1.5.1", true},
+		{"1.5.1", "1.5.1", true},
+	}
+
+	for _, tc := range tests {
+		v1, err := NewVersion(tc.v1)
+		if err != nil {
+			t.Errorf("Error parsing version: %s", err)
+		}
+
+		v2, err := NewVersion(tc.v2)
+		if err != nil {
+			t.Errorf("Error parsing version: %s", err)
+		}
+
+		a := v1.GreaterThanEqual(v2)
+		e := tc.expected
+		if a != e {
+			t.Errorf(
+				"Comparison of '%s' and '%s' failed. Expected '%t', got '%t'",
+				tc.v1, tc.v2, e, a,
+			)
+		}
+	}
+}
+
 func TestEqual(t *testing.T) {
 	tests := []struct {
 		v1       *Version