Remove the word middleware (#1067)

* Rename middleware to plugin

first pass; mostly used 'sed', few spots where I manually changed
text.

This still builds a coredns binary.

* fmt error

* Rename AddMiddleware to AddPlugin

* Readd AddMiddleware to remain backwards compat

1 files changed, 0 insertions, 49 deletions

diff --git a/middleware/debug/debug_test.go b/middleware/debug/debug_test.go
deleted file mode 100644
index a4802fee5..000000000
--- a/middleware/debug/debug_test.go
+++ /dev/null
@@ -1,49 +0,0 @@
-package debug
-
-import (
-	"io/ioutil"
-	"log"
-	"testing"
-
-	"github.com/coredns/coredns/core/dnsserver"
-
-	"github.com/mholt/caddy"
-)
-
-func TestDebug(t *testing.T) {
-	log.SetOutput(ioutil.Discard)
-
-	tests := []struct {
-		input         string
-		shouldErr     bool
-		expectedDebug bool
-	}{
-		// positive
-		{
-			`debug`, false, true,
-		},
-		// negative
-		{
-			`debug off`, true, false,
-		},
-	}
-
-	for i, test := range tests {
-		c := caddy.NewTestController("dns", test.input)
-		err := setup(c)
-		cfg := dnsserver.GetConfig(c)
-
-		if test.shouldErr && err == nil {
-			t.Fatalf("Test %d: Expected error but found %s for input %s", i, err, test.input)
-		}
-
-		if err != nil {
-			if !test.shouldErr {
-				t.Fatalf("Test %d: Expected no error but found one for input %s. Error was: %v", i, test.input, err)
-			}
-		}
-		if cfg.Debug != test.expectedDebug {
-			t.Fatalf("Test %d: Expected debug to be: %t, but got: %t, input: %s", i, test.expectedDebug, cfg.Debug, test.input)
-		}
-	}
-}