first round of tests for the lexer

lexer_test.go

@@ -0,0 +1,49 @@
+package wikilink_test
+
+import (
+	"testing"
+
+	"code.ndumas.com/ndumas/wikilink-parser"
+)
+
+func Test_Lexer(t *testing.T) {
+	// t.Parallel()
+	tcs := []struct {
+		name     string
+		in       string
+		expected []wikilink.ItemType
+	}{
+		{name: "wikilink", in: "[[wikilink]]", expected: []wikilink.ItemType{wikilink.ItemOpenLink, wikilink.ItemText, wikilink.ItemCloseLink}},
+		/*
+			{name: "wikilink|display name", in: "[[wikilink|display name]]", expected: []wikilink.ItemType{}},
+			{name: "wikilink|display name|second pipe", in: "[[wikilink|display name|second pipe]]", expected: []wikilink.ItemType{}},
+			{name: "wikilink with numeric alias|420|second pipe", in: "[[wikilink|420|second pipe]]", expected: []wikilink.ItemType{}},
+			{name: "wikilink with spaces in filename", in: "[[wikilink spaces]]", expected: []wikilink.ItemType{}},
+			{name: "#heading", in: "[[#heading]]", expected: []wikilink.ItemType{}},
+			{name: "wikilink#heading", in: "[[wikilink#heading]]", expected: []wikilink.ItemType{}},
+			{name: "wikilink#heading|display name", in: "[[wikilink#heading|display name]]", expected: []wikilink.ItemType{}},
+			{name: "wikilink#heading|display name|second pipe", in: "[[wikilink#heading|display name|second pipe]]", expected: []wikilink.ItemType{}},
+			{name: "wikilink with numeric aliases#heading|420|display name", in: "[[wikilink#heading|420|second pipe]]", expected: []wikilink.ItemType{}},
+			{name: "^blockRef", in: "[[^blockRef]]", expected: []wikilink.ItemType{}},
+			{name: "wikilink^blockRef", in: "[[wikilink^blockRef]]", expected: []wikilink.ItemType{}},
+			{name: "wikilink^blockRef|display name", in: "[[wikilink#^blockRef|display name]]", expected: []wikilink.ItemType{}},
+			{name: "wikilink^blockRef|display name|second pipe", in: "[[wikilink#^blockRef|display name|second pipe]]", expected: []wikilink.ItemType{}},
+			{name: "wikilink with numeric aliases^blockRef|420|second pipe", in: "[[wikilink#^blockRef|420|second pipe]]", expected: []wikilink.ItemType{}},
+		*/
+	}
+
+	for _, tc := range tcs {
+		tc := tc
+		t.Run(tc.name, func(t *testing.T) {
+			// t.Parallel()
+			l := wikilink.Lex("testLexer", tc.in)
+			for _, e := range tc.expected {
+				n := l.NextItem()
+				if e != n.Typ {
+					t.Logf("expected %s, received %s\n with raw value %q", e, n, n.Val)
+					t.Fail()
+				}
+			}
+		})
+	}
+}