Add a few snippets, mostly for testing

gosnippets/UltiSnips/go.snippets

@@ -20,6 +20,11 @@ snippet ap "append(slice, value)"
 append(${1:slice}, ${0:value})
 endsnippet
 
+# append assignment
+snippet ap= "a = append(a, value)"
+${1:slice} = append($1, ${0:value})
+endsnippet
+
 # break
 snippet br "break"
 break
@@ -307,6 +312,30 @@ func Test${1:Function}(t *testing.T) {
 }
 endsnippet
 
+# quick test server
+snippet tsrv "httptest.NewServer"
+ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+	fmt.Fprintln(w, ${1:`response`})
+}))
+defer ts.Close()
+
+${0:someUrl} = ts.URL
+endsnippet
+
+# test error handling
+snippet ter "if err != nil { t.Errorf(...) }"
+if err != nil {
+	t.Errorf("${0:message}")
+}
+endsnippet
+
+# test fatal error
+snippet terf "if err != nil { t.Fatalf(...) }"
+if err != nil {
+	t.Fatalf("${0:message}")
+}
+endsnippet
+
 # variable declaration
 snippet var "var x Type [= ...]"
 var ${1:x} ${2:Type}${3: = ${0:value\}}
@@ -344,6 +373,4 @@ def closing_par(snip, pos):
 
 endglobal
 
-
 # vim:ft=snippets:
-

gosnippets/snippets/go.snip

@@ -12,6 +12,10 @@ abbr fn := func() { ... }
 snippet ap
 abbr append(slice, value)
 	append(${1:slice}, ${0:value})
+# append assign
+snippet ap=
+abbr slice = append(slice, value)
+  ${1:slice} = append($1, ${0:value})
 # break
 snippet br
 abbr break
@@ -262,6 +266,28 @@ abbr func TestXYZ(t *testing.T) { ... }
 	func Test${1:Function}(t *testing.T) {
 		${0}
 	}
+# test server
+snippet tsrv
+abbr ts := httptest.NewServer(...)
+  ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+    fmt.Fprintln(w, ${1:`response`})
+  }))
+  defer ts.Close()
+
+  //Use testing server url (type string) somewhere
+  ${0:someUrl} = ts.URL
+# test error
+snippet ter
+abbr if err != nil { t.Errorf(...) }
+  if err != nil {
+    t.Errorf("${1}")
+  }
+# test fatal error
+snippet terf
+abbr if err != nil { t.Fatalf(...) }
+  if err != nil {
+    t.Fatalf("${1}")
+  }
 # variable declaration
 snippet var
 abbr var x Type [= ...]