created line.go and moved tests and funcs

point_test.go

@@ -27,49 +27,3 @@ func TestDistance(t *testing.T) {
 
 	}
 }
-
-func TestOnLine(t *testing.T) {
-	var onLineTest = []struct {
-		p        []Point
-		expected bool
-	}{
-		{[]Point{Point{1, 1}, Point{3, 3}, Point{2, 2}}, true},
-		{[]Point{Point{1, 1}, Point{3, 3}, Point{4, 4}}, false},
-		{[]Point{Point{-1, -1}, Point{-3, -3}, Point{-4, -4}}, false},
-		{[]Point{Point{-1, -1}, Point{-3, -3}, Point{-2, -2}}, true},
-	}
-	for _, rt := range onLineTest {
-		actual := onLine(rt.p[0], rt.p[1], rt.p[2])
-		if actual != rt.expected {
-			t.Errorf(
-				"failed onLine:\n\texpected: %t\n\t  actual: %t",
-				rt.expected,
-				actual,
-			)
-		}
-
-	}
-}
-
-func TestLineIntersection(t *testing.T) {
-	var lineIntersectionTest = []struct {
-		l        []line
-		expected Point
-	}{
-		{[]line{line{Point{0, 0}, Point{2, 2}}, line{Point{2, 0}, Point{0, 2}}}, Point{1, 1}},
-		{[]line{line{Point{0, 0}, Point{-2, -2}}, line{Point{-2, 0}, Point{0, -2}}}, Point{-1, -1}},
-		{[]line{line{Point{0, 0}, Point{-2, -2}}, line{Point{1, 0}, Point{1, -7}}}, Point{0, 0}},
-		{[]line{line{Point{5, 8}, Point{8, 5}}, line{Point{3, 7}, Point{7, 3}}}, Point{0, 0}},
-	}
-	for _, rt := range lineIntersectionTest {
-		actual, _ := lineIntersection(rt.l[0], rt.l[1])
-		if actual != rt.expected {
-			t.Errorf(
-				"failed lineIntersection:\n\texpected: %v\n\t  actual: %v",
-				rt.expected,
-				actual,
-			)
-		}
-
-	}
-}