Grand test fixup (#138)

* start fixing up tests

* fix up tests + automate with drone

* fiddle with linting

* messing about with drone.yml

* some more fiddling

* hmmm

* add cache

* add vendor directory

* verbose

* ci updates

* update some little things

* update sig

1 files changed, 125 insertions, 0 deletions

diff --git a/vendor/github.com/golang/geo/s2/util.go b/vendor/github.com/golang/geo/s2/util.go
new file mode 100644
index 000000000..7cab746d8
--- /dev/null
+++ b/vendor/github.com/golang/geo/s2/util.go
@@ -0,0 +1,125 @@
+// Copyright 2017 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package s2
+
+import "github.com/golang/geo/s1"
+
+// roundAngle returns the value rounded to nearest as an int32.
+// This does not match C++ exactly for the case of x.5.
+func roundAngle(val s1.Angle) int32 {
+	if val < 0 {
+		return int32(val - 0.5)
+	}
+	return int32(val + 0.5)
+}
+
+// minAngle returns the smallest of the given values.
+func minAngle(x s1.Angle, others ...s1.Angle) s1.Angle {
+	min := x
+	for _, y := range others {
+		if y < min {
+			min = y
+		}
+	}
+	return min
+}
+
+// maxAngle returns the largest of the given values.
+func maxAngle(x s1.Angle, others ...s1.Angle) s1.Angle {
+	max := x
+	for _, y := range others {
+		if y > max {
+			max = y
+		}
+	}
+	return max
+}
+
+// minChordAngle returns the smallest of the given values.
+func minChordAngle(x s1.ChordAngle, others ...s1.ChordAngle) s1.ChordAngle {
+	min := x
+	for _, y := range others {
+		if y < min {
+			min = y
+		}
+	}
+	return min
+}
+
+// maxChordAngle returns the largest of the given values.
+func maxChordAngle(x s1.ChordAngle, others ...s1.ChordAngle) s1.ChordAngle {
+	max := x
+	for _, y := range others {
+		if y > max {
+			max = y
+		}
+	}
+	return max
+}
+
+// minFloat64 returns the smallest of the given values.
+func minFloat64(x float64, others ...float64) float64 {
+	min := x
+	for _, y := range others {
+		if y < min {
+			min = y
+		}
+	}
+	return min
+}
+
+// maxFloat64 returns the largest of the given values.
+func maxFloat64(x float64, others ...float64) float64 {
+	max := x
+	for _, y := range others {
+		if y > max {
+			max = y
+		}
+	}
+	return max
+}
+
+// minInt returns the smallest of the given values.
+func minInt(x int, others ...int) int {
+	min := x
+	for _, y := range others {
+		if y < min {
+			min = y
+		}
+	}
+	return min
+}
+
+// maxInt returns the largest of the given values.
+func maxInt(x int, others ...int) int {
+	max := x
+	for _, y := range others {
+		if y > max {
+			max = y
+		}
+	}
+	return max
+}
+
+// clampInt returns the number closest to x within the range min..max.
+func clampInt(x, min, max int) int {
+	if x < min {
+		return min
+	}
+	if x > max {
+		return max
+	}
+	return x
+}