Merge pull request #5 from dnnrly/bugfix/unique-filters

Bugfix/unique filters

cmd/root.go

@@ -17,6 +17,12 @@ var rootCmd = &cobra.Command{
 	Short: "Command line access to HTTP references",
 	Long: `This displays useful information related to HTTP.
 
+It will prefer exact matches where there are mutliple entries matching
+the filter (e.g. Accept and Accept-Language). If you want to match
+everything with the same prefix then you can use * as a wildcard suffix,
+for example:
+    httpref 'Accept*'
+
 Most of the content comes from the Mozilla developer
 documentation (https://developer.mozilla.org/en-US/docs/Web/HTTP)
 and is copyright Mozilla and individual contributors. See
@@ -59,7 +65,7 @@ func root(cmd *cobra.Command, args []string) error {
 func printResults(results httpref.References) {
 	switch len(results) {
 	case 0:
-		fmt.Fprintf(os.Stderr, "Name note recognised\n")
+		fmt.Fprintf(os.Stderr, "Filter not found any results\n")
 		os.Exit(1)
 	case 1:
 		fmt.Printf("%s - %s\n\n%s\n", results[0].Name, results[0].Summary, results[0].Description)

httpref.go

@@ -14,7 +14,14 @@ type References []Reference
 func (r References) ByName(code string) References {
 	results := References{}
 
+	wildcard := strings.HasSuffix(code, "*")
+	code = strings.ReplaceAll(code, "*", "")
+
 	for _, v := range r {
+		if !wildcard && v.Name == code {
+			return References{v}
+		}
+
 		if strings.HasPrefix(v.Name, code) {
 			results = append(results, v)
 		}

httpref_test.go

@@ -8,6 +8,7 @@ func Test_Anything(t *testing.T) {
 }
 
 func TestReferences_ByName(t *testing.T) {
+	Statuses = append(Statuses, Reference{Name: "501-extended"})
 	type args struct {
 		code string
 	}
@@ -18,6 +19,7 @@ func TestReferences_ByName(t *testing.T) {
 		{name: "1", want: 5},
 		{name: "40", want: 10},
 		{name: "501", want: 1},
+		{name: "501*", want: 2},
 	}
 
 	for _, tt := range tests {

test/basic.bats

@@ -26,3 +26,21 @@ BIN=./httpref
     [ $status -eq 0 ]
 }
 
+@test "Finds unique entry on exact match on root" {
+    run ${BIN} Accept
+    [ $status -eq 0 ]
+    [ "$(echo $output | grep -c '/docs/Web/HTTP/Headers/Accept$')" -eq 1 ]
+}
+
+@test "Wildcard matching works on root" {
+    run ${BIN} 'Accept*'
+    [ $status -eq 0 ]
+    [ "$(echo $output | grep -c '/docs/Web/HTTP/Headers/Accept$')" -eq 0 ]
+}
+
+@test "Finds unique entry on exact match on headers" {
+    run ${BIN} headers Accept
+    [ $status -eq 0 ]
+    [ "$(echo $output | grep -c '/docs/Web/HTTP/Headers/Accept$')" -eq 1 ]
+}
+