Tests for the parser

config/parse/parsing.go

@@ -46,6 +46,10 @@ func (p *parser) parseOne() error {
 }
 
 func (p *parser) begin() error {
+	if len(p.tokens) == 0 {
+		return nil
+	}
+
 	err := p.addresses()
 	if err != nil {
 		return err

config/parse/parsing_test.go

@@ -1,6 +1,9 @@
 package parse
 
-import "testing"
+import (
+	"strings"
+	"testing"
+)
 
 func TestStandardAddress(t *testing.T) {
 	for i, test := range []struct {
@@ -52,3 +55,217 @@ func TestStandardAddress(t *testing.T) {
 		}
 	}
 }
+
+func TestParseOne(t *testing.T) {
+	testParseOne := func(input string, shouldErr bool) (multiServerBlock, error) {
+		p := testParser(input)
+		p.Next()
+		err := p.parseOne()
+		return p.block, err
+	}
+
+	// Set up some bogus directives for testing
+	ValidDirectives = map[string]struct{}{
+		"dir1": struct{}{},
+		"dir2": struct{}{},
+		"dir3": struct{}{},
+	}
+
+	for i, test := range []struct {
+		input     string
+		shouldErr bool
+		addresses []address
+		tokens    map[string]int // map of directive name to number of tokens expected
+	}{
+		{`localhost`, false, []address{
+			{"localhost", ""},
+		}, map[string]int{}},
+
+		{`localhost
+		  dir1`, false, []address{
+			{"localhost", ""},
+		}, map[string]int{
+			"dir1": 1,
+		}},
+
+		{`localhost:1234
+		  dir1 foo bar`, false, []address{
+			{"localhost", "1234"},
+		}, map[string]int{
+			"dir1": 3,
+		}},
+
+		{`localhost {
+		    dir1
+		  }`, false, []address{
+			{"localhost", ""},
+		}, map[string]int{
+			"dir1": 1,
+		}},
+
+		{`localhost:1234 {
+		    dir1 foo bar
+		    dir2
+		  }`, false, []address{
+			{"localhost", "1234"},
+		}, map[string]int{
+			"dir1": 3,
+			"dir2": 1,
+		}},
+
+		{`http://localhost https://localhost
+		  dir1 foo bar`, false, []address{
+			{"localhost", "http"},
+			{"localhost", "https"},
+		}, map[string]int{
+			"dir1": 3,
+		}},
+
+		{`http://localhost https://localhost {
+		    dir1 foo bar
+		  }`, false, []address{
+			{"localhost", "http"},
+			{"localhost", "https"},
+		}, map[string]int{
+			"dir1": 3,
+		}},
+
+		{`http://localhost, https://localhost {
+		    dir1 foo bar
+		  }`, false, []address{
+			{"localhost", "http"},
+			{"localhost", "https"},
+		}, map[string]int{
+			"dir1": 3,
+		}},
+
+		{`http://localhost, {
+		  }`, true, []address{
+			{"localhost", "http"},
+		}, map[string]int{}},
+
+		{`host1:80, http://host2.com
+		  dir1 foo bar
+		  dir2 baz`, false, []address{
+			{"host1", "80"},
+			{"host2.com", "http"},
+		}, map[string]int{
+			"dir1": 3,
+			"dir2": 2,
+		}},
+
+		{`http://host1.com,
+		  http://host2.com,
+		  https://host3.com`, false, []address{
+			{"host1.com", "http"},
+			{"host2.com", "http"},
+			{"host3.com", "https"},
+		}, map[string]int{}},
+
+		{`http://host1.com:1234, https://host2.com
+		  dir1 foo {
+		    bar baz
+		  }
+		  dir2`, false, []address{
+			{"host1.com", "1234"},
+			{"host2.com", "https"},
+		}, map[string]int{
+			"dir1": 6,
+			"dir2": 1,
+		}},
+
+		{`127.0.0.1
+		  dir1 {
+		    bar baz
+		  }
+		  dir2 {
+		    foo bar
+		  }`, false, []address{
+			{"127.0.0.1", ""},
+		}, map[string]int{
+			"dir1": 5,
+			"dir2": 5,
+		}},
+
+		{`127.0.0.1
+		  unknown_directive`, true, []address{
+			{"127.0.0.1", ""},
+		}, map[string]int{}},
+
+		{`localhost
+		  dir1 {
+		    foo`, true, []address{
+			{"localhost", ""},
+		}, map[string]int{
+			"dir1": 3,
+		}},
+
+		{`localhost
+		  dir1 {
+		  }`, false, []address{
+			{"localhost", ""},
+		}, map[string]int{
+			"dir1": 3,
+		}},
+
+		{`localhost
+		  dir1 {
+		    nested {
+		      foo
+		    }
+		  }
+		  dir2 foo bar`, false, []address{
+			{"localhost", ""},
+		}, map[string]int{
+			"dir1": 7,
+			"dir2": 3,
+		}},
+
+		{``, false, []address{}, map[string]int{}},
+	} {
+		result, err := testParseOne(test.input, test.shouldErr)
+
+		if test.shouldErr && err == nil {
+			t.Errorf("Test %d: Expected an error, but didn't get one", i)
+		}
+		if !test.shouldErr && err != nil {
+			t.Errorf("Test %d: Expected no error, but got: %v", i, err)
+		}
+
+		if len(result.addresses) != len(test.addresses) {
+			t.Errorf("Test %d: Expected %d addresses, got %d",
+				i, len(test.addresses), len(result.addresses))
+			continue
+		}
+		for j, addr := range result.addresses {
+			if addr.host != test.addresses[j].host {
+				t.Errorf("Test %d, address %d: Expected host to be '%s', but was '%s'",
+					i, j, test.addresses[j].host, addr.host)
+			}
+			if addr.port != test.addresses[j].port {
+				t.Errorf("Test %d, address %d: Expected port to be '%s', but was '%s'",
+					i, j, test.addresses[j].port, addr.port)
+			}
+		}
+
+		if len(result.tokens) != len(test.tokens) {
+			t.Errorf("Test %d: Expected %d directives, had %d",
+				i, len(test.tokens), len(result.tokens))
+			continue
+		}
+		for directive, tokens := range result.tokens {
+			if len(tokens) != test.tokens[directive] {
+				t.Errorf("Test %d, directive '%s': Expected %d tokens, counted %d",
+					i, directive, test.tokens[directive], len(tokens))
+				continue
+			}
+		}
+	}
+
+}
+
+func testParser(input string) parser {
+	buf := strings.NewReader(input)
+	p := parser{Dispenser: NewDispenser("Test", buf)}
+	return p
+}