1 files changed, 198 insertions, 0 deletions

diff --git a/test.zig b/test.zig
new file mode 100644
index 0000000..1708353
--- /dev/null
+++ b/test.zig
@@ -0,0 +1,198 @@
+const std = @import("std");
+const clap = @import("clap.zig");
+
+const debug = std.debug;
+const mem = std.mem;
+
+const assert = debug.assert;
+
+const ArgSliceIterator = clap.ArgSliceIterator;
+const Names = clap.Names;
+const Param = clap.Param(u8);
+const Clap = clap.Clap(u8, ArgSliceIterator.Error);
+const Arg = clap.Arg(u8);
+   
+fn testNoErr(params: []const Param, args: []const []const u8, results: []const Arg) void {
+    var arg_iter = ArgSliceIterator.init(args);
+    var c = Clap.init(params, &arg_iter.iter);
+
+    for (results) |res| {
+        const arg = (c.next() catch unreachable) orelse unreachable;
+        debug.assert(res.param == arg.param);
+        const expected_value = res.value orelse {
+            debug.assert(arg.value == null);
+            continue;
+        };
+        const actual_value = arg.value orelse unreachable;
+        debug.assert(mem.eql(u8, expected_value, actual_value));
+    }
+    
+    if (c.next() catch unreachable) |_| {
+        unreachable;
+    }
+}
+
+test "clap: short" {
+    const params = []Param{
+        Param.init(0, false, Names.short('a')),
+        Param.init(1, false, Names.short('b')),
+        Param.init(2, true, Names.short('c')),
+    };
+    
+    const a = &params[0];
+    const b = &params[1];
+    const c = &params[2];
+    
+    testNoErr(
+        params,
+        [][]const u8{
+            "-a", "-b", "-ab", "-ba",
+            "-c", "0", "-c=0",
+            "-ac", "0", "-ac=0",
+        },
+        []const Arg{
+            Arg.init(a, null),
+            Arg.init(b, null),
+            Arg.init(a, null),
+            Arg.init(b, null),
+            Arg.init(b, null),
+            Arg.init(a, null),
+            Arg.init(c, "0"),
+            Arg.init(c, "0"),
+            Arg.init(a, null),
+            Arg.init(c, "0"),
+            Arg.init(a, null),
+            Arg.init(c, "0"),
+        },
+    );
+}
+
+test "clap: long" {
+    const params = []Param{
+        Param.init(0, false, Names.long("aa")),
+        Param.init(1, false, Names.long("bb")),
+        Param.init(2, true, Names.long("cc")),
+    };
+    
+    const aa = &params[0];
+    const bb = &params[1];
+    const cc = &params[2];
+    
+    testNoErr(
+        params,
+        [][]const u8{
+            "--aa", "--bb",
+            "--cc", "0", "--cc=0",
+        },
+        []const Arg{
+            Arg.init(aa, null),
+            Arg.init(bb, null),
+            Arg.init(cc, "0"),
+            Arg.init(cc, "0"),
+        },
+    );
+}
+
+test "clap: bare" {
+    const params = []Param{
+        Param.init(0, false, Names.bare("aa")),
+        Param.init(1, false, Names.bare("bb")),
+        Param.init(2, true, Names.bare("cc")),
+    };
+    
+    const aa = &params[0];
+    const bb = &params[1];
+    const cc = &params[2];
+    
+    testNoErr(
+        params,
+        [][]const u8{
+            "aa", "bb",
+            "cc", "0", "cc=0",
+        },
+        []const Arg{
+            Arg.init(aa, null),
+            Arg.init(bb, null),
+            Arg.init(cc, "0"),
+            Arg.init(cc, "0"),
+        },
+    );
+}
+
+test "clap: none" {
+    const params = []Param{
+        Param.init(0, true, Names.none()),
+    };
+    
+    testNoErr(
+        params,
+        [][]const u8{"aa", "bb"},
+        []const Arg{
+            Arg.init(&params[0], "aa"),
+            Arg.init(&params[0], "bb"),
+        },
+    );
+}
+
+test "clap: all" {
+    const params = []Param{
+        Param.init(0, false, Names{
+            .bare = "aa",
+            .short = 'a',
+            .long = "aa",
+        }),
+        Param.init(1, false, Names{
+            .bare = "bb",
+            .short = 'b',
+            .long = "bb",
+        }),
+        Param.init(2, true, Names{
+            .bare = "cc",
+            .short = 'c',
+            .long = "cc",
+        }),
+        Param.init(3, true, Names.none()),
+    };
+    
+    const aa = &params[0];
+    const bb = &params[1];
+    const cc = &params[2];
+    const bare = &params[3];
+    
+    testNoErr(
+        params,
+        [][]const u8{
+            "-a", "-b", "-ab", "-ba",
+            "-c", "0", "-c=0",
+            "-ac", "0", "-ac=0",
+            "--aa", "--bb",
+            "--cc", "0", "--cc=0",
+            "aa", "bb",
+            "cc", "0", "cc=0",
+            "something",
+        },
+        []const Arg{
+            Arg.init(aa, null),
+            Arg.init(bb, null),
+            Arg.init(aa, null),
+            Arg.init(bb, null),
+            Arg.init(bb, null),
+            Arg.init(aa, null),
+            Arg.init(cc, "0"),
+            Arg.init(cc, "0"),
+            Arg.init(aa, null),
+            Arg.init(cc, "0"),
+            Arg.init(aa, null),
+            Arg.init(cc, "0"),
+            Arg.init(aa, null),
+            Arg.init(bb, null),
+            Arg.init(cc, "0"),
+            Arg.init(cc, "0"),
+            Arg.init(aa, null),
+            Arg.init(bb, null),
+            Arg.init(cc, "0"),
+            Arg.init(cc, "0"),
+            Arg.init(bare, "something"),
+        },
+    );
+}