1 files changed, 67 insertions, 0 deletions
diff --git a/main_test.go b/main_test.go
new file mode 100644
index 0000000..e494dc6
--- /dev/null
+++ b/main_test.go
@@ -0,0 +1,67 @@
+package main
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestFullyIncludes(t *testing.T) {
+	cases := []struct {
+		LeftTime    string
+		RightTime   string
+		Want        bool
+		Description string
+	}{
+		{
+			LeftTime:    "06:12.240",
+			RightTime:   "06:16.040",
+			Want:        true,
+			Description: "right time is bigger",
+		},
+		{
+			LeftTime:    "06:18.240",
+			RightTime:   "06:16.040",
+			Want:        false,
+			Description: "left time is bigger: inadequate",
+		},
+		{
+			LeftTime:    "06:18.240",
+			RightTime:   "06:18.240",
+			Want:        false,
+			Description: "left == right: inadequate",
+		},
+		{
+			LeftTime:    "01:00:08.000",
+			RightTime:   "59:37.800",
+			Want:        false,
+			Description: "with hours: left time is bigger: inadequate",
+		},
+		{
+			LeftTime:    "59:37.800",
+			RightTime:   "01:00:08.000",
+			Want:        true,
+			Description: "with hours: right time is bigger",
+		},
+		{
+			LeftTime:    "01:00:04.900",
+			RightTime:   "01:02:08.000",
+			Want:        true,
+			Description: "with hours: right time is bigger",
+		},
+		{
+			LeftTime:    "01:02:08.000",
+			RightTime:   "01:00:04.900",
+			Want:        false,
+			Description: "with hours: left time is bigger",
+		},
+	}
+	for i, tc := range cases {
+		t.Run(fmt.Sprintf("run: #%d; %q", i, tc.Description), func(t *testing.T) {
+			got := adequateTimes(tc.LeftTime, tc.RightTime)
+			if got != tc.Want {
+				t.Errorf("want: %v; got: %v", tc.Want, got)
+			}
+		})
+	}
+
+}