highlight: add tests for ParseRanges

org/util_test.go

@@ -0,0 +1,38 @@
+package org
+
+import (
+	"fmt"
+	"testing"
+)
+
+var parseRangesTests = map[string][][2]int{
+	"3-5":           {{3, 5}},
+	"3 8-10":        {{3, 3}, {8, 10}},
+	"3   5 6":       {{3, 3}, {5, 5}, {6, 6}},
+	" 9-10 5-6  3 ": {{9, 10}, {5, 6}, {3, 3}},
+}
+
+func TestParseRanges(t *testing.T) {
+	for s, expected := range parseRangesTests {
+		t.Run(s, func(t *testing.T) {
+			actual := ParseRanges(s)
+			// If this fails it looks like:
+			// util_test.go:<line>:  9-10 5-6  3 :
+			//     --- Actual
+			//     +++ Expected
+			//     @@ -1 +1 @@
+			//     -[[9 10] [5 9] [3 3]]
+			//     +[[9 10] [5 6] [3 3]]
+			if len(actual) != len(expected) {
+				t.Errorf("%v:\n%v", s, diff(fmt.Sprintf("%v", actual), fmt.Sprintf("%v", expected)))
+			} else {
+				for i := range actual {
+					if actual[i] != expected[i] {
+						t.Errorf("%v:\n%v", s, diff(fmt.Sprintf("%v", actual), fmt.Sprintf("%v", expected)))
+					}
+				}
+			}
+		})
+	}
+
+}