Allow duplicate names between fragments and non-fragments

1 files changed, 103 insertions, 0 deletions

diff --git a/compiler/compiler_test.go b/compiler/compiler_test.go
new file mode 100644
index 0000000..c76bb24
--- /dev/null
+++ b/compiler/compiler_test.go
@@ -0,0 +1,103 @@
+package compiler
+
+import (
+	"encoding/json"
+	"fmt"
+	"testing"
+
+	"github.com/nihei9/maleeni/spec"
+)
+
+func TestCompile(t *testing.T) {
+	tests := []struct {
+		Caption string
+		Spec    string
+		Err     bool
+	}{
+		{
+			Caption: "allow duplicates names between fragments and non-fragments",
+			Spec: `
+{
+    "entries": [
+        {
+            "kind": "a2z",
+            "pattern": "\\f{a2z}"
+        },
+        {
+            "fragment": true,
+            "kind": "a2z",
+            "pattern": "[a-z]"
+        }
+    ]
+}
+`,
+		},
+		{
+			Caption: "don't allow duplicates names in non-fragments",
+			Spec: `
+{
+    "entries": [
+        {
+            "kind": "a2z",
+            "pattern": "a|b|c|d|e|f|g|h|i|j|k|l|m|n|o|p|q|r|s|t|u|v|w|x|y|z"
+        },
+        {
+            "kind": "a2z",
+            "pattern": "[a-z]"
+        }
+    ]
+}
+`,
+			Err: true,
+		},
+		{
+			Caption: "don't allow duplicates names in fragments",
+			Spec: `
+{
+    "entries": [
+        {
+            "kind": "a2z",
+            "pattern": "\\f{a2z}"
+        },
+        {
+            "fragments": true,
+            "kind": "a2z",
+            "pattern": "a|b|c|d|e|f|g|h|i|j|k|l|m|n|o|p|q|r|s|t|u|v|w|x|y|z"
+        },
+        {
+            "fragments": true,
+            "kind": "a2z",
+            "pattern": "[a-z]"
+        }
+    ]
+}
+`,
+			Err: true,
+		},
+	}
+	for i, tt := range tests {
+		t.Run(fmt.Sprintf("#%v %s", i, tt.Caption), func(t *testing.T) {
+			lspec := &spec.LexSpec{}
+			err := json.Unmarshal([]byte(tt.Spec), lspec)
+			if err != nil {
+				t.Fatalf("%v", err)
+			}
+			clspec, err := Compile(lspec)
+			if tt.Err {
+				if err == nil {
+					t.Fatalf("expected an error")
+				}
+				if clspec != nil {
+					t.Fatalf("Compile function mustn't return a compiled specification")
+				}
+			} else {
+				if err != nil {
+					t.Fatalf("unexpected error")
+				}
+				if clspec == nil {
+					t.Fatalf("Compile function must return a compiled specification")
+				}
+			}
+		})
+	}
+}