Add smart case comparison to autocompletion. Fixes #487.

src/Parser.ts

@@ -41,15 +41,17 @@ function getProgress(input: string, expected: string) {
         return Progress.OnStart;
     }
 
-    if (input.startsWith(expected)) {
+    const normalizedExpected = input === input.toLowerCase() ? expected.toLowerCase() : expected;
+
+    if (input.startsWith(normalizedExpected)) {
         return Progress.Finished;
     }
 
-    if (expected.length <= input.length) {
+    if (normalizedExpected.length <= input.length) {
         return Progress.Failed;
     }
 
-    if (expected.startsWith(input)) {
+    if (normalizedExpected.startsWith(input)) {
         return Progress.InProgress;
     }
 

test/parser_spec.ts

@@ -178,4 +178,23 @@ describe("parser", () => {
             expect(suggestionDisplayValues(results)).to.eql(["git"]);
         });
     });
+
+    describe("case sensitivity", () => {
+        describe("when user types only lowercase letters", () => {
+            it("is case insensitive", async() => {
+                const results = await parse(sequence(string("./Downloads"), string("/mine")), "./down");
+
+                expect(results.length).to.equal(1);
+                expect(suggestionDisplayValues(results)).to.eql(["./Downloads"]);
+            });
+        });
+
+        describe("when user input contains uppercase letters", () => {
+            it("is case sensitive", async() => {
+                const results = await parse(sequence(string("./documents"), string("/mine")), "./Do");
+
+                expect(results.length).to.equal(0);
+            });
+        });
+    });
 });