From dc519adc1955c9dec8dae834eb636e39430c4493 Mon Sep 17 00:00:00 2001
From: Alex Goodman <wagoodman@gmail.com>
Date: Tue, 6 Nov 2018 21:36:44 -0500
Subject: added efficiency test

---
 filetree/efficiency_test.go | 91 ++++++++++++++++++++++-----------------------
 ui/detailsview.go           |  5 ++-
 2 files changed, 47 insertions(+), 49 deletions(-)

diff --git a/filetree/efficiency_test.go b/filetree/efficiency_test.go
index fea9236..4988053 100644
--- a/filetree/efficiency_test.go
+++ b/filetree/efficiency_test.go
@@ -1,49 +1,46 @@
 package filetree
 
-// TODO: rewrite this to be weighted by file size
-
-// func TestEfficencyMap(t *testing.T) {
-// 	trees := make([]*FileTree, 3)
-// 	for ix, _ := range trees {
-// 		tree := NewFileTree()
-// 		tree.AddPath("/etc/nginx/nginx.conf", FileInfo{})
-// 		tree.AddPath("/etc/nginx/public", FileInfo{})
-// 		trees[ix] = tree
-// 	}
-// 	var expectedMap = map[string]int{
-// 		"/etc/nginx/nginx.conf": 3,
-// 		"/etc/nginx/public":     3,
-// 	}
-// 	actualMap := EfficiencyMap(trees)
-// 	if !reflect.DeepEqual(expectedMap, actualMap) {
-// 		t.Fatalf("Expected %v but go %v", expectedMap, actualMap)
-// 	}
-// }
-//
-// func TestEfficiencyScore(t *testing.T) {
-// 	trees := make([]*FileTree, 3)
-// 	for ix, _ := range trees {
-// 		tree := NewFileTree()
-// 		tree.AddPath("/etc/nginx/nginx.conf", FileInfo{})
-// 		tree.AddPath("/etc/nginx/public", FileInfo{})
-// 		trees[ix] = tree
-// 	}
-// 	expected := 2.0 / 6.0
-// 	actual := CalculateEfficiency(trees)
-// 	if math.Abs(expected-actual) > 0.0001 {
-// 		t.Fatalf("Expected %f but got %f", expected, actual)
-// 	}
-//
-// 	trees = make([]*FileTree, 1)
-// 	for ix, _ := range trees {
-// 		tree := NewFileTree()
-// 		tree.AddPath("/etc/nginx/nginx.conf", FileInfo{})
-// 		tree.AddPath("/etc/nginx/public", FileInfo{})
-// 		trees[ix] = tree
-// 	}
-// 	expected = 1.0
-// 	actual = CalculateEfficiency(trees)
-// 	if math.Abs(expected-actual) > 0.0001 {
-// 		t.Fatalf("Expected %f but got %f", expected, actual)
-// 	}
-// }
+import (
+	"archive/tar"
+	"testing"
+)
+
+func TestEfficencyMap(t *testing.T) {
+	trees := make([]*FileTree, 3)
+	for idx := range trees {
+		trees[idx] = NewFileTree()
+	}
+
+	trees[0].AddPath("/etc/nginx/nginx.conf", FileInfo{TarHeader: tar.Header{Size: 2000}})
+	trees[0].AddPath("/etc/nginx/public", FileInfo{TarHeader: tar.Header{Size: 3000}})
+
+	trees[1].AddPath("/etc/nginx/nginx.conf", FileInfo{TarHeader: tar.Header{Size: 5000}})
+	trees[1].AddPath("/etc/athing", FileInfo{TarHeader: tar.Header{Size: 10000}})
+
+	trees[2].AddPath("/etc/.wh.nginx", *BlankFileChangeInfo("/etc/.wh.nginx"))
+
+	var expectedScore = 0.75
+	var expectedMatches = EfficiencySlice{
+		&EfficiencyData{Path: "/etc/nginx/nginx.conf", CumulativeSize: 7000},
+	}
+	actualScore, actualMatches := Efficiency(trees)
+
+	if expectedScore != actualScore {
+		t.Errorf("Expected score of %v but go %v", expectedScore, actualScore)
+	}
+
+	if len(actualMatches) != len(expectedMatches) {
+		for _, match := range actualMatches {
+			t.Logf("   match: %+v", match)
+		}
+		t.Fatalf("Expected to find %d inefficient path, but found %d", len(expectedMatches), len(actualMatches))
+	}
+
+	if expectedMatches[0].Path != actualMatches[0].Path {
+		t.Errorf("Expected path of %s but go %s", expectedMatches[0].Path, actualMatches[0].Path)
+	}
+
+	if expectedMatches[0].CumulativeSize != actualMatches[0].CumulativeSize {
+		t.Errorf("Expected cumulative size of %v but go %v", expectedMatches[0].CumulativeSize, actualMatches[0].CumulativeSize)
+	}
+}
diff --git a/ui/detailsview.go b/ui/detailsview.go
index 3728c59..0fd16f0 100644
--- a/ui/detailsview.go
+++ b/ui/detailsview.go
@@ -2,12 +2,13 @@ package ui
 
 import (
 	"fmt"
+	"strconv"
+	"strings"
+
 	"github.com/dustin/go-humanize"
 	"github.com/jroimartin/gocui"
 	"github.com/lunixbochs/vtclean"
 	"github.com/wagoodman/dive/filetree"
-	"strconv"
-	"strings"
 )
 
 // DetailsView holds the UI objects and data models for populating the lower-left pane. Specifically the pane that
-- 
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